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atroni [7]
3 years ago
12

7. When two or more species live together in a close, long-term relationship, it is called

Biology
1 answer:
alisha [4.7K]3 years ago
8 0
7: symbiotic relationship
8: mutualism 
9: commensalism  

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When Mendel crossed a plant homozygous for round seeds to another plant homozygous for wrinkled seeds, he found that all the pro
deff fn [24]

Answer:

a. The allele for round seeds is dominant to the allele for wrinkled seeds.

Explanation:

Mendel found that when two pure breeding plants that differ from each other with respect to one genetic trait are crossed, all the progeny express the phenotype of one parent. The phenotype of the other parent is not expressed in the progeny. He concluded that the genetic trait that is expressed in the F1 generation is dominant over the other which is masked in this generation.

A cross between pure breeding plants for round seeds and the wrinkled seeds obtained all the round seeded progeny. This meant that the phenotype "round" was dominant over the phenotype "wrinkled". If the allele "R" gave round phenotype and the allele "r" imparted wrinkled phenotype, the allele "R" was dominant to the "r".

3 0
3 years ago
The diagram shows a simple lipid.
Evgesh-ka [11]

The correct answer is option A, that is, saturated.

The mentioned lipid is not a phospholipid, as it does not comprise a phosphate group at the terminal of the chain, and is not a triglyceride due to the absence of glycerol moiety.

Each carbon combined with the hydrogens forms the maximum number of possible C-H bonds, thus, there are no multiple bonds between the carbons. Hence, it can be concluded that the lipid is saturated.


3 0
3 years ago
The study of psychoneuroimmunology suggests that when a stressful situation is encountered, several biological reactions occur,
zhenek [66]

Answer: d) lightheadedness or unconscious episodes.

Explanation:

There are several ways the body responds to stress but one method used by psychologists to measure this response is Hans Selye's general adaptation syndrome. This occurs in 3 stages:

1. The alarm reaction. This occurs when the stressor is first presented resulting in the RELEASE OF HORMONES from the adrenal gland into the blood stream. The hormone in turn cause sympathetic nervous system activation and increase energy levels, INCREASE RESPIRATION, increase muscle tension, reduce sensitivity to pain, slow down the digestive system, and cause a RISE IN BLOOD PRESSURE.

2. The stage of resistance- this occurs till the stress is removed.

3. The stage of exhaustion

7 0
3 years ago
Read 2 more answers
This was simulation. What are some variables that this peppered moths simulation does not address?
Hoochie [10]

Answer:

The simulation only shows how a population can change overtime in response to the changes in the environment. During the industrial revolution, one particular phenotype of moths had an advantage over the other and hence, was subjected to natural selection. What this simulation does not tell us is the causality and correlation aspect of the change that occurs in the moths. Correlation does not equal causation, and the simulation does not shed any light on these variables in this case.

Explanation:

Hope that answers the question, have a great day!

8 0
3 years ago
Merlin’s paper discusses two types of data: artifactual and paleoethnobotanical. Give specific examples of each and describe the
Neko [114]

Answer:

Merlin's paper discusses two types of data: artifactual and paleoethnobotanical. Give specific examples of each and describe the sources of data and the ...

8 0
3 years ago
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