Answer:
below
Explanation:
they could be a-symptomatic
True or False?
Each species in an ecosystem occupies a role or niche for which it becomes specialized.
Answer:
true
Explanation:
it is true..that each species in an ecosystem occupies a role or niche
Can someone help please?
Explain how the adaptive changes in coat-color genes allowed mice to travel under the radar of hungry predators.
Answer:
This:
Explanation:
These adaptive changes help in ways best seen between desert mice and those who live in darker habitats. While desert mice often developed extremely light colored coats to blend best with the environment, mice who live in forest's or valleys often have darker coats to blend with foliage and trees. These coats that help camouflage with the environment protect mice in the open from being snatched by say a eagle or bird of prey. And mice who blend equally with foliage are protected more from ground predators like other small foxes or rodents
Refer to Animation: Cell Signaling: Adrenaline Signaling in the Heart Muscle. Adrenaline stimulates an increase in heart rate by binding to: G proteins on the cytosolic face of the plasma membrane. adenylyl cyclase. regulatory regions in genes that code for muscle cell proteins. G protein-coupled receptors on the surface of heart muscle cells. nuclear transport proteins that allow adrenaline to be taken into the nucleus to act as a transcription factor.
Answer:
The correct answer is ''G-protein coupled receptors on the surface of cardiac muscle cells.''
Explanation:
Adrenaline is a catecholamine whose pharmacological effects occur at alpha and beta adrenergic receptors. The mechanism of action of all beta adrenergic receptors is the activation of a G protein that activates adenylyl cyclase and increases cyclic AMP production. Adrenaline by b-adrenergic stimulus increases the contractile force of the myocardium (positive inotropic action) and increases the frequency in which the myocardium contracts (positive chronotropic action), consequently there is an increase in cardiac work, with a greater demand for oxygen due to the myocardium to be able to contract. Therefore, the blood flow to the heart is indirectly increased, bringing with it a greater supply of oxygen.
Select the correct answer. If pinecones are placed in water, they close up. But they open up in warm and dry conditions. How do pinecones benefit from this characteristic? choices in pic
Answer:
B: it protects the seeds from unfavorable conditions
Explanation:
While the pinecone is developing its seeds, it is vulnerable to wet conditions, which can cause rot.
Which description best defines blastocyst? ОА. a fertilized egg OB. an egg released from the ovary Ос. a mass of specialized cells OD an embryo with a notochord Reset Next
Answer:
ob
Explanation:
3 times the sum of 2 and y?"
Answer and Explanation:
3(2 + y) is the answer.
The 3 is multiplying the 2 and y inside the parenthesis.
#teamtrees #PAW (Plant and Water)
For summer squash, the dominant allele Y for gene 1 leads to yellow color while the recessive allele y leads to green color. Alleles of gene 2 can prevent color formation, with the dominant allele W leading to white squash while the recessive allele w does not interfere with color development. How many phenotypes would be observed among the offspring of the following cross: YyWw x YyWw
Answer:
Three phenotypes:
12/16 individuals are expected to be white3/16 individuals are expected to be yellow1/16 individual is expected to be greenExplanation:
Available data:
Gene 1 → Dominant allele Y ⇒ yellowRecessive allele y ⇒ green
Gene 2 → Dominant allele W ⇒ prevent color ⇒ WhiteRecessive allele w ⇒ Does not prevent color
Cross:
Parentals) YyWw x YyWw
Gametes) YW, Yw, yW, yw
YW, Yw, yW, yw
Punnett square) YW Yw yW yw
YW YYWW YYWw YyWW YyWw
Yw YYWw YYww YyWw Yyww
yW YyWW YyWw yyWW yyWw
yw YyWw Yyww yyWw yyww
F1) Genotype
1/16 YYWW2/16 YYWw1/16 YYww2/16 YyWW4/16 YyWw2/16 Yyww1/16 yyWW2/16 yyWw1/16 yywwPhenotype
12/16 white individuals ⇒ Y-W-, yyW- (Dominant W allele is present, inhibiting the expression of color)3/16 yellow individuals ⇒ Y-ww (Dominant W allele is absent, so color can be expressed. Y allele determinates yellow color)1/16 green individuals ⇒ yyww (Dominant allele W is absent, so color can be expressed. Only y alleles are presents coding for green color)Why is price discrimination not positive under perfect market conditions
Answer:
[u9gbvolgj;t9ug7yh
Explanation:
ft7odt8ugde86rfgef
Price discrimination is impossible in a market with perfect competition, and the average total cost (ATC) curve is identical to the marginal cost curve (MC).
What is price discrimination?Price discrimination is a sales strategy in which the seller charges different prices for the same item or service oriented on what the seller believes the customer will agree to.
In sheer price discrimination, the seller charges each customer the highest possible price.
Price discrimination occurs when various prices are charged to different customers.
This is not feasible in a perfectly competitive market because there are numerous firms competing for the price; however, it is possible in a monopoly because people have no other place to buy.
In a monopoly, price discrimination is the practice of charging different prices for a product.
Monopolies typically have greater control over providers than regular sellers, allowing them to significantly influence the selling prices of the suppliers.
Thus, due to this, price discrimination is not positive even under perfect market conditions .
For more details regarding price discrimination, visit:
https://brainly.com/question/14969650
#SPJ6
Name at least three neuromitters and state the roles of these neuronmitters in human body ? Except acetylcholine, (GABA)and domanine. Please help as soon .
Answer:
Explanation:
The chemical messengers present in the body are known as neurotransmitters. These are the chemicals that the nervous system uses to send and receive information between neurons and muscles. A neurotransmitter can have one of three effects on a neuron:
Excitatory effect, Inhibitory effect, and/or Modulatory effect.
The list of neurotransmitters and their roles are as follows:
Glutamate: This is present in amino acid compounds which are located in the synapses. It functions as an excitatory neurotransmitter, causing neurons to discharge instructions when stimulated in the central nervous system.
Adrenaline: It helps to respond to body's psychological stress and protection mechanism. They are positioned above the kidney and are created by the adrenal glands. They operate throughout the central nervous system and swiftly increase your heart rate and provide oxygen to your muscles.
Serotonin: Serotonin is a crucial brain neurotransmitter that also has a role in the small intestine. In your digestive tract, serotonin increases feelings of contentment after eating and controls your appetite. When you eat anything that doesn't agree with your stomach, serotonin assists your body in getting rid of it.
Racoons will almost eat anything. They are most accurately called...
1. carnivores
2. omnivores
3. herbivores
4. producers
The anwser is 2. Omnivores
how does secondary succession differ from primary succession? it begins on bare rock or land, it begins where no plants have grown, lichens and mosses form soil first, soil nutrients are already in place
in georgia or in the crib
Answer:
In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
Ecotourism can provide an incentive for local people to preserve the environment in order to attract more visitors, but sometimes development is done with little planning for long-term environmental impacts. On a small island in the Caribbean, a local group is considering opening a resort for ecotourism. If they wish to build a sustainable and ecofriendly business, what should be the next steps in their plan?
A. Investigate the ecological impacts and gather evidence on which to base their decisions
B. Hire an agent to locate a suitable property and start developing infrastructure
C. Market the development to investors and explain ecotourism to them to raise money for the resort
D. Determine what types of activities the resort will offer and hire staff
Answer: The next steps in their plan should be to (Investigate the ecological impacts and gather evidence on which to base their decisions). The correct option is A.
Explanation:
ECOTOURISM is defined as the visitation of individuals (tourist) to natural areas that conserve the environment and sustains the well-being of the local people. It has to do with the interaction of the biotic components of the natural environment by tourists. This has the advantage of providing an incentive for the local inhabitants but can cause a long term negative environmental impact of not properly planned.
Conservation of these natural resources improves the quality of lives. It enables the inhabitants to live in a clean and healthy environment (eco-friendly). To set up a tourism center, certain rules and regulations needs to be met in order to avoid endangering both the biotic and abiotic components of the ecosystem. Therefore these local groups should investigate the ecological impacts and gather evidence on which to base their decisions. This would help conclude if a particular selected environment is conducive.
EX: Polymerization and the breakdown of a polymer are two opposite reactions. What role does a water molecule play in both of them?
Answer:
A water molecule is released during polymerization, which helps in the formation of a bond, and it is added during the break down of a polymer, which helps in breaking the bond.
Which color of light has more energy?
1) Blue
2) Red
10. The organ that stores swallowed food and liquid, mixes up digestive juices with
the food and liquid, and sends it to the small intestine.
A. Mouth
C. Stomach
B. Rectum
D. Intestines
Answer:
stomach
Explanation:
stomach is the answer pal
Answer:
Stomach
Explanation:
Stomach is the organ that stores swallowed food and liquid, mixes up digestive juices withthe food and liquid, and sends it to the small intestine.
An organism which depends on a host for its survival is a
A)virus
B)bacterium
C)human
D)fungus
1. Describe the structure of DNA.
2. What does a nucleotide consist of?
3. What are the base-pairing rules?
4. If one DNA strand reads CCGTAATGCAT, what will be the sequence of the
complementary strand?
Answer:
DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix.
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
GGCATTACGTA
Explanation:
draw the metaphase stage of mitosis in plant cell with chromosomes
Answer:
get a life sci study guide it will help u
Sequence the steps in the chain of infection in the correct order. identify influenza, new patient comes in contact with sick patient, influenza struck (sick) patient, sick patient sneezes, new patient is infected, new patient inhales through the nose
Answer:
influenza struck (sick) patient
new patient comes into contact with sick patient.
sick patient sneezes
new patient inhales through nose
new patient is infected
Explanation:
Answer: influenza struck (sick) patient
new patient comes into contact with sick patient.
sick patient sneezes
new patient inhales through nose
new patient is infected
Help answer this question:
Explain the rules for which donors can donate to other blood types and Rh factors
Answer:
AB+ blood types can donate only to AB+.
B+ blood types can donate to B+ and AB+.
A+ blood types can donate to A+ and AB+.
O+ blood types can donate to A+, B+, AB+, and O+.
AB- can donate to AB- and AB+.
B- can donate to B-, B+, AB-, and AB+.
A- can donate to A-, A+, AB-, and AB+.
O- can donate to all blood types.
Define (Chlorophyll)
Thank you!
Answer:
a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring.
Answer:
Chlorophyll is a green pigment that is in all green plants and cyanobacteria. It is responsible for the absorption of light that provides energy for photosynthesis.
Explanation:
When we ingest food containing large molecules such as lipids, carbohydrates,
and proteins, these molecules must undergo catabolic reactions whereby enzymes
split these into smaller molecules. This series of reactions is
A. absorption.
C. chemical digestion.
B. secretion.
D. mechanical digestion.
How can scientists use the fossil record to find evidence of relationships between different species?
Answer:
Species can be classified using the fossil record based on analogous or homologous structures.
Explanation:
By comparing the anatomy of both modern and extinct species, paleontologists can infer the lineage of those species, scientists use the fossil record.
What is Fossil?A fossil is defined as the preserved remains, imprint or trace of a once living thing from a past geological age. Some examples of fossils are bones, shells, exoskeletons, stone marks of animals or microbes, objects preserved in amber, hair, petrified wood, and DNA residues. The totality of fossils is known as the fossil record.
Fossils form the morphological, or anatomical record, through comparing the anatomy of both modern and extinct species with the comparative anatomy of present-day organisms, paleontologists can infer the lineage of those species.
Thus, by comparing the anatomy of both modern and extinct species, paleontologists can infer the lineage of those species, scientists use the fossil record.
Learn more about Fossils, here:
https://brainly.com/question/6867325
#SPJ2
A Punnett square is a tool used to Group of answer choices
A predict the probability of genetic crosses
B determine the possibility of inheriting athletic abilities
C guess what genetic disorders might be inherited
D all of these
Answer: a
Explanation:
A punnet square is used to determine which genes are the strongest
What is phytotomy?Explain
Answer:
ANATOMY OF PLANT IS CALLED PHYTOTOMY
Explanation:
Plant anatomy or phytotomy is the general term for the study of the internal structure of plants. ... Plant anatomy is now frequently investigated at the cellular level, and often involves the sectioning of tissues and microscopy.
Answer:
the anatomy of plants.
Explanation:
phytology - the branch of biology that studies plants. botany.
AYUDA ES PARA HOY es de Ciencias Naturales ¿Por que a veces podemos ver la Luna de día , a veces , lo podemos ver de noche y a veces , no lo podemos ver?
Answer:
Porque contigo yo ya escogi?
Ahora mi corazon ta supri
Bien simple lang iyo ta pidi
Era cinti tu el cosa yo ya cinti.
Explanation:
.;(
can the enzyme DNA polymerase be used to break down or build lactose?
p,ease help meeeee
due in 5
Answer:
A membrane is partially permeable which means if a molecule that is smaller than another it can pass through the membrane but the molecule which is larger cannot (this totally depends on the membrane)
36. Mitosis requires the chromosome to be replicated into______ copies.
a. 2
b. 6
c. 1
Answer:
Option a. "2"
Explanation:
Answer:
Mitosis requires the chromosome to be replicated into 2 copies.
option a is the answer
Explanation:
The cell separates the copied chromosomes to form two full sets (mitosis) and the cell divides into two new cells (cytokinesis). The period between cell divisions is known as 'interphase'.The genome is composed of a number of chromosomes—complexes of tightly coiled DNA that contain genetic information vital for proper cell function. Because each resultant daughter cell should be genetically identical to the parent cell, the parent cell must make a copy of each chromosome before mitosis
2) Cartilage is not found in
a. Nose
C. Bones
b. Adipose tissue
d. Phosphorus and potassium
d
Phosphorus and potassium do not have any cartilage
