Answer:
Percentage of food eaten by the flock
Why is the percentage of food eaten a good number to use? Explanation:
A percentage compares the number of birds in the flock to the total number of birds in all flocks.
If the percentage is high, the flock is more successful, so the flock should grow.
If the percentage is low, the flock is struggling to eat, so the flock should shrink.
It's not a mole, it's a gene flow.
A trophic pyramid is a visual representation of the trophic levels in an ecosystem, with the producers at the base of the pyramid and the tertiary consumers at the top.
The pyramid would look as follows:
This means that they would match as follows:
• Producers, - Bottom of the pyramid ,(E),
• Primary Consumers, - Second level from the bottom (A)
• Secondary Consumers - Middle of the pyramid (C)
,
• Tertiary Consumers - Second level from the top (D)
,
• Apex Predator - Top of the pyramid (B)
Reflex action is the response to a stimulus. The spinal cord along with the brain stem is responsible for the reflex movement.
For example : when you touch a hot object you immediately remove your hand from it
As the exercise progresses, muscular activity increases venous return. This increases the pre-load on the right ventricle. During venous exercise, the rhythmic pump of the muscles facilitates venous return by forcing the blood through one way valves that lead to the heart. Additionally, increased lung activity which creates a change in thoracic pressure that draws blood towards the heart. Regular exercises improves the venous return by increasing total blood volume, increasing end diastolic volume and increasing the size and contractile strength of the heart muscle.
