Changes in the dna are called mutations. They can occur spontaneously. Mutations can only be passed down in gametes--sperm and egg cells. with Darwins theory at mind a mutation needs to pass the test of natural selection to remain in the gene pool. So purposly making mutation or altercations may end in diseases/illnesses or in some cases death because they body can not take it.....hope this helps if it doesnt im sorry!
The answer to your question is,
D. Adhesion
-Mabel <3
Methane the most, small amount of oxygen and other gases
True
Explanation:
If the net force on an object at rest is zero, the object will remain at rest. This is one of the postulates of newton's law of motion.
Newton's first law of motion states that "an object will continue in its state of rest or uniform motion unless if it is acted upon by an external force. "
- If no net force acts on a body, it will forever remain at rest.
- The force on a body causes its motion and acceleration.
- A body will continue in uniform motion if no external force acts on it.
Learn more:
Newton's law brainly.com/question/11411375
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Answer:
T cells are born from hematopoietic stem cells, found in the bone marrow. Developing T cells then migrate to the thymus gland to develop (or mature). T cells derive their name from the thymus.
Explanation:
