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Illusion [34]
3 years ago
10

_____may have evolved from aerobic bacteria and ____ may have evolved from photosynthetic cyanobacteria engulfed by a predatory

cell.
Biology
1 answer:
bixtya [17]3 years ago
8 0
____ may have evolved from aerobic bacteria and ____ may have evolved from photosynthetic cyanobacteria that were engulfed by predatory prey prokaryotic cells.

Mitochondria; chloroplasts
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Which of the following is an example of a density-independent limiting factor?
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Answer:

c. a natural disaster

Explanation:

A limiting factor in an ecosystem can either be density dependent or density independent. A density independent limiting factor is that which does not rely on the density of a population to affect it's size.

A density independent factor affects the population size irrespective of how densely populated the population is. Examples of density independent limiting factors that can affect a population are natural disasters like fire outbreak, hurricane, earthquake etc.

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Which explains how the nervous system is typically involved in keeping the body in homeostasis? It processes the environment and
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It processes the environment and sends out signals.

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Sense receptors can sense any changes in internal or external conditions which disturb the homeostasis. The sensory information is sent to the central nervous system which in turn process the information and commands the respective body parts to perform actions to restore the homeostasis.  

Example: The information about increased demand of oxygen during exercise is sent to the brain which in turn commands parts of breathing system and cardiovascular system to increase the breathing rate and heartbeat rate respectively to compensate for increased oxygen supply.  

 

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during the day, when the sun is shining, the ground gets warm mainly as a result of 1. the emission of greenhouse gasses from fa
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4, Radiated heat from the Sun being absorbed by the ground.
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