Answer:
the answer would be c. hydrogen and oxygen
9. What is the economic importance of beekeeping both in terms of pollinating, crops, and obtaining products from the hive? 10. Explain how the spread of trypanosomiasis can be controlled by releasing male sterile tsetse flies in to an area. Date of submission July 07, 2021 Wednesday
Answer:
9. Bees play a very important role in relation to agricultural production. Indeed beekeeping is a vital part of our agricultural system. Apart from crop plants which are highly dependant on bees, the presence of honey bees also improves the quality and quantity of crops in general.
10. Use insect repellent. Permethrin-impregnated clothing and insect repellent have not been proved to be particularly effective against tsetse flies, but they will prevent other insect bites that can cause illness. The World Health Organization has targeted West African trypanosomiasis for elimination as a public health problem by 2020.
Explanation:
A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid ₹27 for a book kept for seven days, while Susy paid ₹21 for the book she kept for five days. Find the fixed charge and the charge for each extra day.
Answer:
See the attachment.
Hope u understand
In the given question, 5₹ is the fixed charge and 3₹ is the charge for each extra day.
A fixed charge is a fee or cost that remains constant and does not vary with changes in usage or consumption.
Let the fixed charge for the first three days be x and the charge for each extra day be y.
From the given information, we can set up two equations:
For Saritha: [tex]\rm 3x + 4y = 27 -----(equation 1)[/tex]
For Susy: [tex]\rm 3x + 2y = 21 -----(equation 2)[/tex]
We can solve for x and y by using elimination or substitution:
Using elimination, we can multiply the second equation by 2 and subtract it from the first equation:
[tex]\rm 3x + 4y = 27[/tex]
[tex]\rm - (6x + 4y = 42)[/tex]
Solving above equations, we get:
[tex]\rm -3x = -15[/tex]
[tex]\rm x = 5[/tex]
Substituting x = 5 into one of the equations, we can solve for y:
[tex]\rm 3(5) + 4y = 27[/tex]
[tex]\rm 15 + 4y = 27[/tex]
[tex]\rm 4y = 12[/tex]
[tex]\rm y = 3[/tex]
Therefore, the fixed charge is ₹5 and the charge for each extra day is ₹3.
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Which type of seismic wave is recorded by a sesimoraged first during an earthquake ?
The landscape of the Amazon rain forest has become more fragmented over the past half century. Thus, we would say that its _______ has changed.
Answer:
Structure.
Explanation:
It has changed its structure. Structure is the correct answer.
At each ______ foramen, the dura mater extends between adjacent vertebrae and fuses with the connective tissue layers that surround the ______.
Answer:
At each intervertebral foramen, the dura mater extends between adjacent vertebrae and fuses with the connective tissue layers that surround the spinal nerves.
Explanation:
The dura mater is the outermost meninge. It is around the spinal cord and the brain, and it protects these organs. In the spine, the dura mater extends between the intervertebral foramen. The intervertebral foramina are the areas between each vertebra that have spinal nerve projections. In these areas, the dura mater extends to seclude the space where the spinal cord is since it fusses with the tissue that is around each spinal nerve to stop the entrance of any pathogen to the spinal canal, which is the space that contains the spinal cord.
Which of the following is not one of planes and sections of body orientation?
Answer:
They are the median plane, sagittal planes, coronal (frontal) planes and horizontal (transverse) planes
Explain Central Nervous System.
Explanation:
The central nervous system controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.
Explanation:
central nervous system is made up of the brain and spinal cord. it receives and integrate impulses from the receptors and then relays them to effector organs. it is the centre of co ordination.
For young men of age 20, there have been 150 rounds of DNA replication during sperm production as compared to only 23 rounds for a woman of age 20. That is a 6.5-fold greater number of cell divisions and proportionately greater opportunity for new point mutations. Yet, on average, 20-year-old men contribute only about twice as many new point mutations to their offspring as do women. How can you explain this discrepancy
Answer:
A plausible hypothesis is that deleterious germline mutations in sperm cells are removed by natural selection since sperms have to compete to fertilize the egg
Explanation:
Sperm cells need to travel through the cervix in order to reach the uterus and fertilize the egg. During this process (which is called 'fertilization'), approximately 300 million sperm cells have to compete in a race to reach an egg. During fertilization, the majority of sperm cells die off quickly because male germinal cells carry mutations that lead to abnormalities (e.g., many sperms have double heads, others no tail, etc). The sperm cells are considered to be physiologically weak because their normal functions can be easily disrupted by mutations and, simultaneously, they are under strong selective pressure to be selected during the sperm race. In consequence, deleterious germline male mutations are expected to be eliminated by natural selection, thereby sperms are selected before fertilization so only the strongest ones can compete in the race to fuse with the egg cell and thus develop one zygote.
what does forage mean?
Answer:
to obtain food in the wilderness
Answer:
(of a person or animal) search widely for food or provisions.
food such as grass or hay for horses or cattle
1. What are the four components of Physical Fitness?
Explanation:
Muscular Strength
Muscular endurance
Flexibility
Body Composition
Human-to-human transmission of plague is usually by Group of answer choices unsanitary conditions. the respiratory route. dog flea. rat flea. wounds.
Answer: The correct answer is respiratory route.
Explanation: Disease can be transmitted from human to human through respiratory route. This can occur when the infected person cough or sneeze into the air , some particles of the pathogens are released and there is any human around the infected person when he sneez or cough, the person tend to get infected by inhaling or breathing in the infected air.
what is a dam
please tell
Answer:
a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply.
Which of the following energy transformation occur when humans use energy from food to exercise?
Answer:
Chemical energy from food molecules (potential energy) may also be transformed to mechanical energy (kinetic energy) when the body moves. In every energy transformation, some energy is given off as heat. This is why the body warms up during different activities like exercising, lifting weights, and even digestion!
Explanation:
Now you are going to use station data to write weather forecasts for several cities for today. Write your
forecasts in complete sentences. Assume you are writing for the general public Be sure to discuss
temperatures, winds, and possible precipitation
Answer:
Temperatures and direction of wind are the following.
Explanation:
Los Angeles has highest temperature i.e. 56 and lowest temperature of 47 degree Fahrenheit and wind moves towards Southwest direction.
Salt Lake city has highest temperature i.e. 42 and lowest temperature of 36 degree Fahrenheit and wind moves towards West direction.
Chicago II has highest temperature i.e. 28 and lowest temperature of 27degree Fahrenheit and wind moves towards Midwest direction.
Philadelphia has highest temperature and lowest temperature is the same i.e. 56 degree Fahrenheit and wind moves towards Northeast direction.
New Orleans has highest temperature i.e. 75 and lowest temperature of 70 degree Fahrenheit and wind moves towards South direction.
What is a substrate?
a. a molecule that acts as a catalyst
b. a place on the enzyme where the reaction occurs
c. a place on the product where the enzyme fits
d. a reactant that is catalyzed by an enzyme
Answer:
D- it connects to the active site to create an enzyme- substrate complex
Explanation:
:)
Which of the following must be true for natural selection to occur?
O A. The ecosystem cannot contain predators.
B. A population cannot have competition for resources,
C. A population must be stable.
D. The ecosystem must have limited resources,
List the negative impacts of human activities on vegetation?
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.
Explanation:
Hurry plz
Select each item in the left column and its match in the right column.
Answer:
Explanation:
Diploid - Having pairs of chromosomes
Chromosome - A strand of DNA wrapped around a protein
Haploid - Having only one set of unique chromosomes
DNA - The molecule that carries genetic information
Sex Chromosome - An X or Y chromosome
Homologous Chromosome - A pair of chromosomes that contain information for the same traits
Chapter 1: Cells Exercise Multiple Choice Question 1. A cell has mitochondria, centrosome with centrioles, nucleus and other cell organelles. Based on this information, this cell could be a cell of A, an apple. B. a yeast. Co a cat. D. a flower
Answer:
C. a cat
Explanation:
only animals have centrosomes.
hope this helps!
Identify the producer in the following food chain: Oak tree, Caterpillar, Blue Jay, Bobcat
A. Caterpillar
B. Oak tree
C. Blue Jay
D. Bobcat
Asexual reproduction differs from sexual reproduction in that Group of answer choices asexual reproduction utilizes DNA from two parents to code for traits in offspring. asexual reproduction occurs only in plants. asexual reproduction produces offspring containing DNA from only one parent. asexual reproduction only occurs in animals. asexual reproduction produces genetically diverse offspring.
Answer:
Asexual reproduction produces offspring containing DNA from only one parent.
Explanation:
Asexual reproduction produces offspring containing DNA from only one parent because in asexual reproduction, the organisms born or produced from a single parent. The offspring is identical to their parent and this process of asexual reproduction occurs in both plants and animals. Asexual reproduction produces identical not genetically diverse offspring in the end of the process.
Answer:
Because asexual reproduction results in the birth or creation of organisms from a single parent, the children created have DNA from just one parent. Both plants and animals can reproduce asexually, and the progeny are identical to their parents. Asexual reproduction ultimately results in identical, not genetically different, offspring.
Explanation:
edg 2022
What about cellulose makes it ideal for structural support?
Answer:The answer would be D!
Explanation:
A hydrogen bond is one of the strongest molecular bonds. :)
is the outermost layer of the animal cell
[tex]\color{Black}\huge{Answer} [/tex]
It is the outermost layer in the animal cell and is found just inside the cell wall in the plantcell.Answer:
The Cell Membrane is the outer layer of a cell that separates it from the In both plant and animal cells, the cell membrane is found.
In an animal cell, it is located just within the cell wall, while in a plant cell, it is located just inside the cell wall. Cholesterol is present in the membrane of animal cells, but not in the membrane of plant cells.
Explanation:
An animal cell's outermost layer is the cell membrane.
It is found immediately under the outermost cell wall layer in plant cells.
It is made up of the following components:
a bilayer of phospholipids.Membrane proteins are proteins that are found in the membrane ofChannels in the membraneCholesterol.Receptors that send forth signals.During cell signaling, lipid rafts are used to attach intracellular proteins.It has a fluid or mosaic texture, and the molecules in the layer can move around.
If the first base in the sequence below were mutated to a C, what would that do to the amino acid sequence?
A U G G C G G A A
Methionine, Alanine, Glutamic Acid
Answer:
it would be Leucine , Alanine , Glutamic Acid
Explanation:
enjoy your day :)
which is used to make many copies of DNA?
Answer:
Polymerase chain reaction (PCR) is used to make many copies of DNA .
hope it is helpful to you.
Answer:
Polymerase chain reaction (PCR) is used to make many copies of DNA .
hope it is helpful to you.
Which of the following parts of the brain is related to controlling water concentration and Osmosis?
A. Basal Ganglia
B. Thalamus
C. Hypothalamus
D. Pituitary Gland
Answer:
The correct answer is - D.
Explanation:
The pituitary gland is the gland that releases the ADH hormone that helps in reabsorption and regulates the osmoregulation and water concentration in the body. Antidiuretic hormone is an important hormone in water concentration regulation.
Hypothalamus is the part of the brain other than the Pituitary Gland that helps in controlling water concentration and Osmosis by controlling pituitary gland.
The correct answer is - D.Pituitary Gland
The function of coenzyme A in the citric acid cycle is most like Group of answer choices a limousine driver dropping off a couple at the school prom. a kid jumping up and down on a trampoline. a frog that turns into a prince. throwing a baited hook into a lake and catching a fish.
Answer:
a limousine driver dropping off a couple at the school prom
Explanation:
The citric acid cycle, also known as the Krebs cycle, is a metabolic pathway by which carbohydrates, lipids and amino acids can be oxidized to carbon dioxide (CO2) and water (H2O). Coenzyme A (CoA) is a key coenzyme in the citric acid cycle. Coenzyme A acts as a carrier of acyl groups: its acetyl-coenzyme A form delivers the acetyl group to the citric acid cycle in order to be oxidized for energy production. During the citric acid cycle, Coenzyme A delivers the acetyl group to oxaloacetate (a four-carbon molecule), in order to form citrate (a six-carbon molecule that contains three carboxyl groups). Subsequently, citrate is oxidized and decarboxylated to produce a succinyl CoA, 2 CO2, and 2 NADH.
When Adenosine Triphosphate is used, it breaks down into:
A. Glucose
B. It doesn't break down
C. Thymine Triphosphate
D. Adenosine Diphosphate
Answer:
D. Adenosine DIPHOSPHATE
Explanation:
ATP is hydrolysed to ADP in the reaction ATP+H20->ADP +Pi + energy
When Adenosine Triphosphate is used, it breaks down into Adenosine Diphosphate.
Adenosine diphosphate (ADP)
Adenosine diphosphate (ADP), also known as adenosine pyrophosphate (APP), is an important organic compound in metabolism and is essential to the flow of energy in living cells. ADP consists of three important structural components: a sugar backbone attached to adenine and two phosphate groups bonded to the 5 carbon atoms of ribose. The diphosphate group of ADP is attached to the 5’ carbon of the sugar backbone, while the adenine attaches to the 1’ carbon.
ADP can be interconverted to adenosine triphosphate (ATP) and adenosine monophosphate (AMP). ATP contains one more phosphate group than does ADP. AMP contains one fewer phosphate group. Energy transfer used by all living things is a result of the dephosphorylation of ATP by enzymes known as ATPases. The cleavage of a phosphate group from ATP results in the coupling of energy to metabolic reactions and is a by-product of ADP.ATP is continually reformed from lower-energy species ADP and AMP. The biosynthesis of ATP is achieved throughout processes such as substrate-level phosphorylation, oxidative phosphorylation, and photophosphorylation, all of which facilitate the addition of a phosphate group to ADP.
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The bundle of collagen fibers at the end of a skeletal muscle that attaches the muscle to bone is called a(n)
Answer:
epimysium
Explanation:
Epimysium is a sheath of fibrous elastic tissue surrounding a muscle.
It is a layer of dense irregular connective tissue which ensheathes the entire muscle and protects muscles from friction against other muscles and bone
Lisa is giving a speech about Pandas. Her speech includes 3 points: 1) where pandas live; 2) what pandas eat; and three) how pandas reproduce. What type of organization is Lisa using?
Answer:
Topical order.
Explanation:
Text structure can be defined as words used to describe how a writer or an author organizes his or her words in a literary work.
A topical order refers to a way of structuring a text or organizing a speech based on the main topic and dividing it into several subtopics in logical categories (steps).
In this scenario, Lisa is giving a speech about Pandas. Her speech includes 3 points:
1) Where pandas live.
2) What pandas eat.
3) How pandas reproduce.
Thus, the type of organization Lisa is using is topical.
In conclusion, a speech or text organized in a topical order has its main points organized as subtopics which are well related with the main topic.
