Answer:
The correct answer is - The renal portal system has an artery between the first and second capillary bed. The others have a vein.
Explanation:
A portal system is a system in which is used blood collected from one set of capillaries bed passes through a large vessel or vessels, to another set of capillaries bed before returning to the systemic circulation as the heart can not use these to transfer from all the parts of bodies.
There are several portal systems such as the renal portal system, the hypothalamo–hypophyseal and digestive portal systems, however, The renal portal system has an artery whereas others have a vein.
Answer:
B
Explanation:
Chemoreception is a physiological process where an organism reacts to a chemical stimulus in their environment.
Pheremones are chemical substances that organisms release into their environments as a form of communication.
Pheremones bind to chemoreceptors which causes a response once the nervous system of the bee has analyzed and identified the chemical substance. The bee can then react with further communication.
<em> </em>
Answer:
<em> If the vegetation around them disappeared </em><em>all life requiring oxygen would die.</em><em> Life means sun, water, and green plants. This is practically impossible to disappear all plants without cosmic accident</em><em>. If that happens then all animal kingdoms will die simultaneously.</em>
Explanation:
<em>Vegetation is the source of energy for all organisms. All other organisms directly or indirectly depend on them for food. So, if all the green plants disappear from the earth, all the herbivores will die due to starvation and so will the carnivore, i.e., it would result in the extinction of life from the earth. </em>
<em />
<em>If you have any questions please ask! </em>
Answer:
Ratio = 0.43/m
Explanation:
Given parameters:
Surface area of sphere = 588m²
Volume of sphere = 1372m³
We are solving for the ratio of the surface area to volume. This ratio is very important in so many life processes in both plants and animals.
Ratio =
Ratio =
Ratio = 0.43/m
Female 42-56 day
Male 10 days