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trasher [3.6K]
3 years ago
11

What is natural selection?

Biology
1 answer:
Jobisdone [24]3 years ago
4 0
A) a process that selects variations that help with survival and that spreads the variations to more offspring
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No matter what the temperature is outside,your body temperature stays relatively constant at about 37°C. This is part of your bo
Korolek [52]

Answer:

The correct answer is: Homeostasis.

Explanation:

Homeostasis is a key element in the correct functioning of the body, as it groups different processes that consist of regulating biological systems in order to maintain certain aspects of the body constant. If homeostasis were to fail, the body would sicken.

Homeostasis is controlled by two important systems: the nervous system, and the endocrine system. While they have many differences (for example, the nervous system's response is quicker and lasts less than the endocrine system's response), they share the capacity of sending messages to different parts of the body to generate responses that help us adapt to the varying conditions of the environment.

Examples of homeostasis include the regulation of body temperature, pH, and blood sugar levels (glycemia).

4 0
3 years ago
Explain how energy flows and matter cycles through trophic levels
kvv77 [185]

I HOPE that 1, 2, or 3 helps you!! :)

Answer:

1. The cycle of energy is based on the flow of energy through different trophic levels in an ecosystem. ... If large predators are present, they represent still higher trophic level and they feed on carnivores to get energy. Thus, the different plants and animal species are linked to one another through food chains.

Explanation:

2. When organisms use organic matter for cellular respiration, ALL the matter goes back into carbon dioxide, water, and minerals, while ALL the energy leaves the ecosystem as heat (which is ultimately radiated out into space). So matter cycles, energy flows through ecosystems.

3. The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.

6 0
3 years ago
What organelles are near the nucleus
ziro4ka [17]
There's the rough and smooth ER, mitochondria, golgi complex, etc. The organelles move around in the cytoplasm so there isn't designated organelles that are near the nucleus, unless you count the rough and smooth ER since they're attached to the nucleus... 
4 0
3 years ago
Air passes from the trachea into the lungs through two large tubes called?
Levart [38]
The bronchi are where air passes from the trachea.
5 0
3 years ago
Read 2 more answers
Which of these elements is likely to be found in an organic compound?
Anettt [7]

Answer:

it  could be  B or A

Explanation:

hope it helps

5 0
3 years ago
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