These are some ways how scientists and engineers develop, use and refine models.
1. Imagine. They have to know what exactly trying to model. They have to imagine and brainstorm what are the things to be considered.
2. Reason. Next, they need to answer the questions brought from their brainstorming. They need to be able to reason out.
3. Calculate and Predict. Once they know it, that's the time they can start modelling and calculate - and predict.
B.haploid cells are formed
Answer:
The correct answer is - B. Woodchucks hibernate to survive the winter.
Explanation:
Many mammals such as groundhog or also known as woodchucks hibernate during winter in order to survive winter. Hibernation is the process or state of minimal activity during a particular time of the year characterized by low body temperature, slow heart rate, and low metabolic rate.
Woodchucks are become less active and remain in their burrow and seen very little during the winter and stay like this till late winter or early spring.
Ecosystems can only have so many organisms living in it before the vegetation’s can’t break it all down.
<u>Answer</u>: C. Neutralization of stomach acid.
Hydrochloric acid is one of the three components of the stomach acid. The other two are potassium chloride and sodium chloride.
It plays a key role in the destruction of some ingested microorganisms. It is also vital to the digestion of proteins by activating the enzyme pepsin.