Answer:
true
Explanation:
Exoskeletons have a role in defense from pests and predators, support and in providing an attachment framework for musculature.
Nitrogen is not found in <span>carbohydrate or lipids, but is in proteins.</span>
Answer:
The correct option is A.
Explanation:
The number of bacteria in an experiment can be represented by an exponential function
where, x represents the number of hours.
We need to find the value of x when f(x)=64.
Substitute f(x)=64 in the given function.
It can be rewritten as
On comparing both sides by get
The value of x is 3.
Since f(3)=64 it means the population of bacteria is 64 in 3rd hour.
Therefore the correct option is A.
It is important to determine or know whether an organism is aerobic or anaerobic because from there you would be able to know the perfect conditions for the organism to grow and reproduce. If you are culturing the organism you would need if it needs oxygen and how much of oxygen is needed. Anaerobic organisms does not need the presence of oxygen in order to grow. You can determine an organism that is anaerobic by trying to put them in conditions that dos not have oxygen. After a few hours or days, when you observe that more organisms are present, then most likely it is an anaerobic organism.<span />
<span>D is the correct answer. Metabolism is formed of two processes, anabolism, which builds new structures, for example, proteins, and catabolism, which breaks down existing structures. Catabolism breaks down large molecules like lipids into smaller ones like fatty acids.</span>
