<u>Answer:</u>
An example situation of artificial selection is "More African elephants today naturally lack tusks compared to the elephant populations 100 years ago, because big game hunters sought elephants for ivory".
<u>Explanation:</u>
- The process of breeding animals to acquire the desired characteristics by the external means other than natural selection and behavior of animal itself is called as artificial selection.
- The first artificial selection was carried out by Darwin when he mated penguins that would have a higher chance of breeding.
- The practice of artificial selection was existing in human civilization a long time ago.
- This process was used to use wild animals and domestic animals in battles and other household works.
Answer:
A change in the pulmonary blood pressure leading to an increase in the vessels around the lungs results in fluids moving into the lungs thus causing it to fill up leads to rales.
Answer: They are not regulated by contact inhibition.
Explanation:
Contact inhibition is a form of controlling cells. Cancer doesn't have contact inhibition, which is one of the reasons why it spirals out of place so easily.
Answer:
Major functions of the muscular system are - produce movement, maintain essential bodily functions, maintain posture, stabilize joints and generate heat.
Explanation:
The muscular system is an organ system includes all three types of muscles smooth, skeletal, and cardiac muscles. It helps in the performing various functions such as generate heat generate movement, help in supporting the skeletal structure by maintain posture. and stabilizing the various joints.It includes muscles and tendons that are joins with the bones.
Thus, the correct answer- Major functions of the muscular system are - produce movement, maintain posture, maintain essential bodily functions, generate heat and stabilize joints.