The following statement BEST describes the skeletal system: The skeletal system is composed of a rigid structure of bones that support the body and make red and white blood cells. Correct answer: C
The skeletal system has also ligaments and tendons, which are structures that are responsible for connecting bones. The skeletal muscles are the most smooth muscles in the body.
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.
Answer:
financial security
Explanation:
The main reason for this is usually financial security. A couple that becomes parents right out of highschool have very limited options due to the baby. Usually, both parents will have to get a job, which is going to be a minimum wage job due to it being their first job. The money gained from these jobs will be used completely to maintain the baby. This causes stress, anger, depression, etc. to set in which usually causes problems and ultimately hatred between the parents. Individuals who become parents in their early 30's have already had lots of time to find their place in life, go to school, learn something, climb the ranks in their job, and ultimately be much more financially secure.
