What are the biological methods of controlling mosquito population?

Answers

Answer 1

Explanation:

Biological control or "biocontrol" is the use of natural enemies to manage mosquito populations. ... Effective biocontrol agents include predatory fish that feed on mosquito larvae


Related Questions

Describe the structure of G protein ?

Answers

Answer:

G protein can refer to two distinct families of proteins.

Explanation:

heterotrimric G proteins are large in shape, G proteins are activated by G protein coupled receptors and are made up of alpha (a) beta(b) and gamma(y) subunits.

Name two structural characteristics that triglycerides and phospholipids have in common.


Answers

Answer:

They both have fatty acids.

Explanation:

which vary in number whereby triglycerides has three fatty acids while phospholipids have two fatty acids.

Answer:

Explanation:

which vary in number whereby triglycerides has three fatty acids while phospholipids have two fatty acids.

make sure to add

two fatty acids

glycerol

carboxyl group

Which is NOT a function of magnesium in the body?
znutritio acting as a cofactor for enzyme systems in the Irody
regulating bone and mineral status
protecting teeth from acid-forming bacteria
making up one component in bone mineral​

Answers

Answer: I think it is the third one which states, "Protecting teeth from acid-forming bacteria".

Explanation:

Circle
1
2
Circle the most reactive metal in each set.
1) Magnesium / Potassium
2) Aluminum / Gold
3) Cobalt / Cesium / Calcium
4) Iron / Titanium / Potassium
5) Francium / Lithium / Beryllium
لی

Answers

Answer:

Explanation:

1) potassium

2)Aluminium

3) Cesium

4) potassium

5) Beryllium

____ are thought to be present before vertabrates

Answers

Answer:

Jawless fish was present before vertebrates.

Explanation:

Jawless fish has some characteristics of vertebrates and also considered as the ancestor of vertebrates on earth which is similar in appearance with the hagfish. It was present about 500 to 600 million years ago. They consist of cranium but vertebral column is absent. but with the passage of time, evolution occurs and many animals which was the descendant of this jawless fish having vertebral column or backbone in their body.

When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by

Answers

Question is incomplete, The complete question is as follows:

When a bacterium such as E. coli is shifted from a warmer growth temperature to a cooler growth temperature, it compensates by:

A) increasing its metabolic rate to generate more heat.

B) putting longer-chain fatty acids into its membranes.

C) putting more unsaturated fatty acids into its membranes.

D) shifting from aerobic to anaerobic metabolism.

E) synthesizing thicker membranes to insulate the cell.

Answer:

C) putting more unsaturated fatty acids into its membranes.

Explanation:

Bacteria has the ability to change the composition of fatty acid present in its cell membrane to compensate the change in temperature.

When bacterium E.Coli will shift from hight or warmer temperature to low or cooler temperature, it will put more unsaturated fatty acids into its membranes which will mintain the fluidity in the membrane.

Hence, the correct option is "C".

21. When looking at the effect of pH on sucrase activity, what was the wavelength of light
used in the spectrophotometer?​

Answers

Answer:

540nm

Explanation:

Sucrase is one of the digestive enzymes responsible for the digestion of sucrose containing foods. Its major function is the catalysis of the hydrolysis of sucrose into its subunits; fructose and glucose.

Enzymes, as biochemical catalysts always function maximally at an optimum pH. As the pH of the system departs from the ideal pH for any enzyme, the activity of that enzyme decreases accordingly.

The activity of sucrose is studied using a spectrophotometer of wavelength about 540nm. As the pH of the solution departs from the specific ideal pH of sucrase, its activity decreases as stated above.

Which of the following describes the most likely impact that exposure to pollutants in the atmosphere would have on one’s personal health?

Answers

Answer:

It will lead to upper respiratory infections and pneumonia.

Explanation:

A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

The correct answer is - 25%

Explanation:

A cross between true tall pea plant and heterozygous tall pea plant is the cross of tall allele whic is TT and heterozygous which is Tt, so the gametes will be formed would be - T and T by true tall plant and T, and t allele by heterozygous plant.

The Punnett square of this cross is attached with the answer, where 2 heterozygous offspring and two tall offspring produced. In which there is only two recessive short allele formed in this generation out of 8 alleles.

So the probability of short allele would be:

= (2/8) *100

= (1/4) *100

= 25%

The backbone vertebrae, skull, and rib cage make up the _______ skeleton. Among other types of cells, bone marrow produces _______ blood cells, which carry oxygen in the blood. _______ can eventually become osteocytes. If bones rapidly deconstruct faster than new bone tissue grows, this can lead to less dense and more fragile bones. When severe, this condition is called _______. _______ such as the MCL and ACL connect bone to other bone at joints.

ANSWERS :

1.axial
2. red
3. Osteoblasts
4. osteoporosis
5. Ligaments
6. Osteoblasts are cells that build bone tissue, and are called osteocytes when they become surrounded by the bone that they have built. Osteoclasts are cells that break down bone tissue. The building and breaking down of bone tissue continues throughout a person’s lifetime and makes bones strong. If osteoclasts break down more bone than osteoblasts build, this can lead to osteopenia and osteoporosis, causing bones to be fragile and break more easily.

Answers

Answer:

1. axial

2. red

3. Osteoblasts

4. osteoporosis

5. Ligaments

Explanation:

The axial skeleton consists of the bones of the head and trunk of a vertebrate including skull, and rib cage.

Bone marrow produces red blood cells, which carry oxygen in the blood.

Osteoblasts can become osteocytes, which are the third type of bone cells.

Osteoporosis  is a bone resorption disease in which bones rapidly deconstruct faster than new bone tissue grows, and decreases the mechanical strength of bones.

Ligaments connects one bone to other at joint such as medial collateral ligament (MCL) and anterior cruciate ligament (ACL) that joins knee.

Hence, the correct answer for the question is as follows:

1.axial

2. red

3. Osteoblasts

4. osteoporosis

5. Ligaments

Answer:

1. axial

2. red

3. Osteoblasts

4. osteoporosis

5. Ligaments

6. Osteoblasts are cells that build bone tissue, and are called osteocytes when they become surrounded by the bone that they have built. Osteoclasts are cells that break down bone tissue. The building and breaking down of bone tissue continues throughout a person’s lifetime and makes bones strong. If osteoclasts break down more bone than osteoblasts build, this can lead to osteopenia and osteoporosis, causing bones to be fragile and break more easily.

Explanation:

Penn Foster

Vaccination is a process of injecting a dead or weakened form of a pathogen into the body. How does this help strengthen the immune system? It allows the body to increase its internal temperature. It allows the body to regulate the inflammatory response. It allows the body to keep pathogen information for future infections. It allows the body to increase its desire to eat healthy food.

Answers

Answer:

It allows the body to keep pathogen information for future infections.

Explanation:

Vaccination is the process whereby a substance called VACCINE is injected into body in order to prepare the immune system for resistance against infections. A vaccine contains the harmless or dead version of a pathogen called ANTIGEN, which functions to give the immune system defense mechanism against that form of pathogen in future.

The vaccine works by stimulating the immune system of the body to fight against the antigens in the same way it will fight against an actual pathogen in the future. Hence, the body keeps the information on how to combat such pathogens when there is an actual infection.

Answer

The answer is C edge 2020

Explanation:

Select the scenarios that describe an abiotic factor that is density independent. Select the TWO answers that are correct.

a. Fir trees grow in number, increasing the amount of food available for moose
b. Heavy and continuous rains flood the land, submerging habitats.
c. Lightning strikes a tree and begins a fire that clears the land.
d. Ticks infesting moose weaken the moose's health and reproductive success.
e. Frigid temperatures flow into the area, causing hypothermia and death.

Answers

Answer: Option B and C.

Heavy and continuous rains flood the land, submerging habitats.

c. Lightning strikes a tree and begins a fire that clears the land.

Explanation:

Heavy and continuous rains flood the land, submerging habitats.

Lightning strikes a tree and begins a fire that clears the land.

The above are example of density independent abiotic factors because rainfall and lightning affect the population size of the environment by decreasing it's population sizes.

Abiotic factors are the non living part of the environment and they include rain fail, temperature,lightning, humidity e.t.c.

Density independent abiotic factors are factors that decrease or increase the population size of the ecosystem.

Therefore, Heavy and continuous rains flood the land, submerging habitats.

cLightning strikes a tree and begins a fire that clears the land are density independent factor because they decrease the population size.

The scenarios that describe an abiotic factor that is density independent are ; ( B and C )

Heavy and continuous  rains flood the land, submerging habitats ( B )Lightning strikes a tree and begins a fire that clears the land ( C )

Abiotic factors are Nonliving components of an ecosystem that has a significant effect on the ecosystem such as ; Rain, rocks, Temperature and humidity. Density Independent factors are factors in an ecosystem that can cause the decrease or increase of the population size of an ecosystem.

Heavy and continuous rainfall is an abiotic factor that has the ability to decrease the population of an ecosystem by submerging organisms habitats.

Lightning striking a tree and setting it ablaze which clears the land also reduces the population of the ecosystem because the fire will lead to loss of habitats and death of some organisms .

Hence we can conclude that The scenarios that describe an abiotic factor that is density independent are Heavy and continuous  rains flood the land, submerging habitats and Lightning strikes a tree and begins a fire that clears the land .

Learn more : https://brainly.com/question/19180443

What are the similarities and differences between prokaryotic cells and eukaryotic cells?

Answers

The similarities between a prokaryotic and eukaryotic cell is that they both have a plasma membrane, cytoplasm, and ribosomes. The difference is that the eukaryotic cell is usually larger and has a true nucleus. It has other membrane bound organelles.

Why are G protein only found in Eukaryote cell ?

Answers

Answer:

they bind to protein-coupled transmembrane receptors with higher complexity than those found in prokaryotes

Explanation:

G-proteins are proteins found inside the cells that function as molecular switches which are activated by binding to guanosine triphosphate (GTP), while they are inactive by binding to guanosine diphosphate (GDP). The G-proteins bind to G-protein-coupled transmembrane receptors (GPCRs) in the cytoplasmic region. The GPCRs are a very diverse group of proteins that are activated by extracellular molecules ranging from small peptides to large proteins, including pheromones, neurotransmitters, light-sensitive compounds, etc, thereby allowing them to respond to diverse stimuli from the extracellular environment. In consequence, it is reasonable to suppose that the signaling pathways in which G proteins are involved have a higher complexity level than those observed in primitive prokaryotic organisms.

A.While the traits studied in Exercise 1 were hypothetical genetic traits, what type of genetic traits do you think are important to study and predict

Answers

Answer:

Genetic disturbances harmful to the organism are genetic characteristics that must be studied and predicted.

Explanation:

Genetic disorders that harm an organism such as sickle cell anemia, hemophilia, Turner syndrome, among others, are important to be studied and predicted, because it will provide better maintenance of that organism. Allowing people who inherit these characteristics to have more efficient treatments and a better life, since the prediction of these characteristics allows the family to establish better adapapitativo methods, that will make the life of this individual easier and with more quality.

The diagram represents a food pyramid. The concentration of the pesticide DDT in individual
organisms at level D is higher than the concentration in individuals at level A because DDT is
A. produced by organisms at level C ingested by
those in level D.
B. passed through levels A, B, and C to organisms
at level D.
C. excreted by organisms at level A as a toxic
waste.
D. synthesized by organisms at level D.

Answers

Answer:

B. passed through levels A, B, and C to organisms

Explanation:

DDT is an insecticide that passed through the food chain from one trophic level to the next.

The concentration of DDT increases with the each trophic level in food chain and the amount of toxin increases as passes from A to B, B to C, and C to D where D has the higher concentration of DDT as it is the higher trophic level than A, B, and C.

Hence, the correct answer is "B. passed through levels A, B, and C to organisms".

. Buffer solution resists change to its pH when small amounts of an acid or an alkali are added to it. Buffer solutions can be used to keep the pH of a substance constant during an experiment. For example, if pH 5.5 buffer solution is added to a mixture of amylase and starch solution, the pH of the mixture will remain constant at 5.5. The student has the following buffer solutions available: 5.5, 6.0, 6.5, 7.0, 7.5 and 8.0. Describe how the student can adapt the tube experiment to investigate the effect of pH on the action of amylase.

Answers

Answer:

hey

Explanation:

While not an official step in the process, Acetyl CoA formation is a transition between glycolysis and krebs, and occurs only in the presence of oxygen.
A. True
B. False

Answers

Answer:

A. True

Explanation:

Acetyl coA is a compound which helps in the transport and availability of the acetyl group to the citric acid cycle (Krebs cycle).

Though it is not an official step in the process, Acetyl CoA formation is a transition between glycolysis and krebs, and occurs only in the presence of oxygen.

The Acetyl group helps in the oxidation for energy production.

Saprobic microorganisms are important decomposers of plant litter, animal matter, and dead microbes. This is an example of a(n) ______________.

Answers

Answer:

The correct answer would be - heterotrophs (chemoheterotrophs)

Explanation:

Heterotrophs are the living organisms that are directly or indirectly depend on the autotrophs or the organisms that can make their own food for energy and growth.

Saprobic microorganism are free living organisms that get their energy from decomposing rotten or dead organic matter such as plant litter, animal matter and dead microbes. It is performed with the help of enzymes or chemicals they release to decompose such matter. they also known as chemoheterotrophs.

Thus, the correct answer would be - heterotrophs (chemoheterotrophs).

A research team discovered that a novel hormone X stimulates an enzyme that hydrolyzes proteins in the small intestine. However, when hormone X was added to a test-tube mixture containing the enzyme and proteins, no breakdown occurred.

Required:
a. Why is this the case?
b. Name ONE signal transduction pathway that hormone X is using to transfuse its signal. (write all the steps and intermediates)

Answers

Answer:

a. It is a hormone that acts upstream in the signaling pathway (i.e., acting as a ligand by binding to cell receptors)

b. Dopamine-mediated pathways  

Explanation:

It is well known that many cellular transduction pathways are activated via binding of signaling molecules (ligands) to receptors capable of triggering signaling cascades into the cell. For example, dopamine is a signaling hormone (neurotransmitter) involved in diverse brain processes (i.e., motor control, emotional response, etc). It is a neurotransmitter that binds to dopamine receptors and then stimulates the enzyme adenylate cyclase in a process that subsequently activates the production of the second messenger cyclic adenosine monophosphate (cAMP). Finally, cAMP acts as an intracellular signal transductor that play roles in many biological processes by transferring into the cell the effects of dopamine.

What is it called when a bacterium uses a virus to transfer its DNA to another bacterium?
O A Transduction
х
B. Conjugation
O C. Transformation
O D. Transcription
X Incorrect
It isn’t A

Answers

it is transduction.

though it happens in prokaryotes

Answer:

Transduction.

Explanation:

A P E X

Which two Neolithic activities came about because of climate change?

Answers

Answer:

1. Domesticating animals  

2. Farming grains

Explanation:

Poeple started doing these without machines because of climate change.

What part of the brain is known as the pleasure center?

A. Brain stem

B. Hypothalamus

C. Thalamus

D. Midbrain

SUBMIT

Answers

Answer:

B. Hypothalamus

Explanation:

The hypothalamus contains the pleasure center of the brain, the nucleus accumbens. The hormone dopamine is released from this part of the brain in response to or anticipation of pleasurable activities such as eating good food, monetary rewards as well as when taking psychoactive drugs.

The release of dopamine affects other feelings such as happiness, focus, being alert as well as staying motivated. it also affect some voluntary actions as well.

Constantly seeking out activities that stimulate dopamine release may lead to addiction to such activities as in drug addiction.

Which is/are possible genotypes for a person with straight little finger and brown eyes?

a. bbrr
b. bbRR
c. BbRr
d. bbRr

Answers

Answer:

The correct answer is b. bbRR.

Explanation:

Brown eyes color is dominant over blue eyes color. So, we can assign the letter R to the dominant allele that expresses brown eyes and r to the recessive allele that expresses the blue eyes.  The phenotype bent little finger is dominant over the phenotype straight little finger. We can assign the letter B to the dominant allele, and b to the recessive allele.    

a. bbrr : This genotype belongs to a person with blue eyes and straight little finger

b. bbRR : This genotype belongs to a person with brown eyes and straight little finger

c. BbRr : This genotype belongs to a person with brown eyes and bent little finger

d. bbRr: This genotype belongs to a person with brown eyes and straight little finger.

g UV radiation causes covalent dimerization of two subsequent ______ bases in DNA. This dimer is recognized and repaired by ______.

Answers

Answer: The options are not given.

Here are the options.

a. C and C ;;;; DNA photolyase

b. T and T ;;;;; DNA photolyase

c. C and C ;;;; DNA photoisomerase

d. T and T ;;;;; DNA photoisomerase

e. None of the above

Explanation:

UV light damages the DNA of cells that are exposed by making bonds to be formed between adjacent pyrimidine bases, usually thymines, in the DNA chains. The thymine dimers inhibit or hinder the DNA correct replication during reproduction of the cell.

UV radiation causes covalent dimerization of two subsequent T and T because Thymine bases of DNA directly absorbs a UVB photon . UVB light causes thymine base pairs close to each other in genetic sequences to bond together into pyrimidine dimers, thereby causing a disruption in the strand, which reproductive enzymes cannot copy.

UV-induced thymine dimers can be repaired by photoreactivation, in a process where energy from visible light is used to split the bonds forming the cyclobutane ring through the action of DNA photolyase, an enzyme that repaired damaged cause by uv radiation to dna.

What growth information leads to your answer? The colonies are able to grow on minimal medium containing no additional supplements. The colonies are able to grow on complete medium.

Answers

Answer:

A growth medium or culture medium is a solid, liquid or semi-solid designed to support the growth of a population of microorganisms or cells via the process of cell proliferation,[1] or small plants like the moss Physcomitrella patens.[2] Different types of media are used for growing different types of cells.[3]

The two major types of growth media are those used for cell culture, which use specific cell types derived from plants or animals, and microbiological culture, which are used for growing microorganisms, such as bacteria or fungi. The most common growth media for microorganisms are nutrient broths and agar plates; specialized media are sometimes required for microorganism and cell culture growth.[1] Some organisms, termed fastidious organisms, require specialized environments due to complex nutritional requirements. Viruses, for example, are obligate intracellular parasites and require a growth medium containing living cells.

Which of the following small GTPases are NOT involved in vesicle budding or docking? A. ARF B. Rab1 C. Ras D. Sar1p

Answers

Answer:

option c is correct that is Ras

Explanation:

In pea plants there is a dominant allele (A) for green pods and a recessive allele (a) for yellow pods. Suppose a heterozygous plant is crossed with a plant that has yellow pods. Complete the sentences about this cross with the correct terms.
1. The phenotype of the heterozygous plant is_________.
2. The genotype of the heterozygous plant is_________.
3. The genotype of the plant with yellow pods is________.
4. The genotypes of gametes produced by a heterozigous plant is______.
5. The genotypes of gametes produced by a yellow plant is_______.
A. Green pods
B. 75% AA and 25% Aa
C. AA
D. 100% A
E. Yellow pods
F. 50%
G. 25%
H. 100% a
I. 50% A and 50% a
J. Aa
K. 0%
L. 75%
M. 75% A and 25% a

Answers

Answer:

1. Green

2. Aa

3. aa

4. A and a

5. a and a

Explanation:

1. The phenotype of the heterozygous plant (Aa) would be green since the allele responsible for green color (A) is dominant over the allele responsible for yellow color (a).

2. The genotype of a heterozygous plant would be Aa. Heterozygous individuals have different alleles for the same gene.

3. The genotype of the plant with a yellow pod would be aa. Since the allele for green color (A) is dominant over the allele for yellow color (a), the yellow color can be expressed only in the absence of the (A) allele. Hence, the genotype fo yellow color has to be aa.

4. The genotypes of gametes produced by a heterozygous plant would be (A) and (a) because heterozygous individuals have two different alleles for a gene.

5. The genotypes of gametes produced by a yellow plant would be (a) and (a) because a yellow plant has the genotype (aa).

Which is a characteristic of all waves?

Answers

Answer:

All kinds of waves have the same fundamental properties of reflection, refraction, diffraction and interference, and all waves have a wavelength, frequency, speed and amplitude. A wave can be described by its length, height (amplitude) and frequency. All waves can be thought of as a disturbance that transfers energy.

Explanation:

Answer: there's three characteristics

Explanation:

Three characteristics of waves can be measured: amplitude, wave-. length and frequency.

What is the correct formula for population growth? A. D+B-I-E B. E+D-B-I C. B+I-D-E D. I+E-B-D

Answers

Answer:

C.) B+I-D-E

Explanation:

The correct formula for population growth is the individuals added to the population via birth or immigration, minus the individuals removed from the population via death or emmigration. Therefore the answer is (B+I)-(D+E), or B+I-D-E

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Reading glasses with a power of 1.50 diopters make reading a book comfortable for you when you wear them 1.8 cmcm from your eye. Part A If you hold the book 28.0 cmcm from your eye, what is your nearpoint distance The volume of a sphere is [tex]\frac{1}{162} \pi[/tex] cubic meters. What is the length of the spheres radius? In your final answer, include all of your calculations. T en la clase de ciencias con tu prima ngela? the textbook states that _________ is the foreground and _________ is the backdrop against which we can understand intercultural communication Read the excerpt from A Poem for My Librarian, Mrs. Long.Mrs. Long asking what are you looking for todayWhen I wanted Leaves of Grass or alfred north whiteheadShe would go to the big library uptown and I now knowHat in hand to ask to borrow so that I might borrowThe implicit details in this excerpt best support the conclusion thatMrs. Long feels angry about having to ask to borrow books.the speaker asks for books that were often difficult to find.the speaker appreciates the librarians efforts to get her books.young children are not allowed to borrow books on their own. What were some benefits of Athenian democracy? Have you watched a family drama or any other movie where a lack of communication or miscommunication caused a problem? If yes, recall the instances of the lack of communication or miscommunication and write a brief note explaining how failure to communicate effectively caused the misunderstanding or the problem. From the graph of Density vs. Concentration, created in Graph 1, what was the relationship between the concentration of the sugar solution and the density of the sugar solution? perform the indicated operation (8-15i)(-3 + 2i) A 1300-turn coil of wire 2.40 cm in diameter is in a magnetic field that increases from 0 T to 0.120 T in 9.00 ms . The axis of the coil is parallel to the field. What is the emf of the coil? Write in standard 7.12510^-9 When sweat cools on the skin, removing heat and cooling the body, what process is occurring? A. Parasympathetic nerve conduction B. Respiration C. Homeostasis D. Dehydration To maintain the security of the new country under the Constitution, the writers did what he most common source of osteomyelitis is an infection that migrates via the bloodstream. direct invasion from a fracture. surgical contamination. a joint prosthesis. Select the correct answer. What did Alexander Hamilton plan in 1783? A. Shays's Rebellion B. Newburgh Conspiracy C. The Virginia Plan D. The New Jersey Plan What is one example of real-life government control that is like the type of control in the book Matched by Ally Condie? What is resource Management in Wireless Communication ? Explain its Advantages? Why do you think that Peeta Mellark's father comes to say goodbye to Katniss? How doyou think his goodbye to Katniss differed from his goodbye to Peeta? A plane electromagnetic wave travels northward. At one instant, its electric field has a magnitude of 9.6 V/m and points eastward. What are the magnitude (in T) and direction of the magnetic field at this instant? What is the value of x that makes L1 || L2? please help!! A. 18 B. 12 C. 10 D. 6