Answer:
they should check out the issue
1. change
The natural selection is a process that occurs as a direct consequence of the living conditions in the environment. When the environment starts to change though, the organisms that live in it face a big challenge. They either have to change, adapt to the new conditions, and thus survive, or if they are not able to do so, to die out. This is the biggest evolutionary pressure for the organisms, and while some come out as winners from it, many others die out .
2. variation
In order for the process of natural selection to occur, the population needs to have some genetic variation. The environment is the ultimate push factor, but if the population doesn't have genetic variation in it, than the species will die out. The genetic variation is very important as in that way the individuals choose who will they mate with, in accordance with their traits, so that only the advantageous traits can be passed on to the next generation, so that it can be more competitive in the environment.
3. traits
The natural selection is a very simple process. The individuals of a population, when choosing a mate, look for the individuals that exhibit traits that are advantageous for survival. Mating with individuals with traits that are advantageous guarantees that the offspring will inherit those traits, thus it will have higher chances to survive. The individuals that do not have advantageous traits though will be avoided as mating partners, and that would rapidly lead to their decline and elimination from the gene pool, as they will not have any offspring to continue their line.
Order of steps are as follow;
1. In mechanical digestion, the teeth grind food and break it in to smaller parts.
2.Churning and enzyme pepsin break down protein in the stomach.
3. The pancreas releases the enzyme trypsin and chymotrypsin.
4. Amino acids are absorbed by the capillaries in the jejunum
5. Amino acids enter the bloodstream and are then circulated throughout the body.
Basically this says, food with source of protein is digested mechanically in your mouth, small pieces are then further broken down in the stomach through enzymatic action pepsin and those that are secreted by the pancreas, further absorbed by capillaries and circulated throughout the body via blood.
Answer:
Physical Health Mental Health
Explanation:
stress stress
nourishing food nourishing food
bone development
aerobics
a balanced diet a balanced diet
Answer: Dehydration
Explanation:
Dehydration can be defined as the loss of fluid from the body. The loss is more than the intake. When the water content of the body is less then the other minerals of the body gets imbalanced.
Incase of severe dehydration there is a decreases in the weight of the person as the body starts burning fat.
The same happened in case of Joshua were running marathon made Joshua's body weak and dehydrated.
