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a_sh-v [17]
3 years ago
11

A population of rabbits lives on one side of a wide river. Another population of rabbits lives on the opposite side of the river

. They cannot cross the river. If speciation occurred as a result of the river, what kind of speciation was this? ___________
Biology
1 answer:
frez [133]3 years ago
4 0

Answer:

Allopatric speciation

Explanation:

The kind of speciation that occurs when 2 populations of rabbits separated by water become different species is <u>allopatric speciation</u>.

Allopatric speciation occurs when two populations of the same organisms become physically separated and each population ends up developing unique characteristics that make them distinct species. This is as opposed to sympatric speciation in which a new species just spontaneously emerge from the existing population without any being separated from the population.

Other forms of speciations include parapatric speciation which occurs as a result of the spreading out of a population over a large geographical area and peripatric speciation which occurs as a result of the breaking off of a small group from a large group of organism.

<em>In the illustration, the two populations of rabbits are separated physically by the river. Hence, the speciation that will occur if each population goes ahead to form a new species would be </em><em>allopatric speciation.</em>

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Answer:

A. \displaystyle 291,15\:K

Explanation:

\displaystyle 291,15 = 18 + 273,15

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I am joyous to assist you anytime.

5 0
3 years ago
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stepan [7]

Answer:

(e)

Explanation:

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3 years ago
Number the steps from when the stimulus received to when the body reacts​
Natasha2012 [34]

The given question is not complete. The complete question is:

Number the steps from when a stimulus is received to when the body reacts.

The stimulus is received by sensory receptors.

Motor neurons cause muscles to contract so the body can react to the stimulus.

The brain processes the information through interneurons.

Interneurons transfer response information to motor neurons.

Sensory neurons carry stimulus information to the brain or spinal cord.

Answer:

The body of an organism like humans reacts towards each of the external stimuli of the environment like the smell of the food and even to the internal stimulus like hunger or pain. Thus, it can be considered that one is stimulated all the time and reacts towards the constituents found in the surroundings. The entire procedure of the organism reacting towards the stimuli are as follows:  

1. The sensory receptors receive the stimulus.  

2. The stimulus information is further carried to the spinal cord or the brain by the sensory neurons.  

3. The processing of the information in the brain takes place with the assistance of interneurons.  

4. After that the response information is mediated towards the motor neurons by the interneurons.  

5. The motor neurons eventually result in the contraction of muscles showing that the body is reacting towards the stimulus.  

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3 years ago
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netineya [11]
Smaller molecules diffuse easily as compared to the larger molecules. In other words, smaller is the size of molecule, easier and faster is its diffusion across a semipermeable membrane.

Hope I helped
7 0
3 years ago
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MAVERICK [17]
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