Hello I need help with this question.

Biology

2 answers:

zzz [600]2 years ago

7 0

Answer:

Relative age only tells us the order in which events occurred, from the earliest to the most recent. Knowing the actual date of an event allows us to say exactly how old something is or how long ago it actually took place.

Explanation:

emmainna [20.7K]2 years ago

7 0

Relative age describes the order events occur, while as the specific date of an event describes how old something is or how long it took place.

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Some autoimmune disorders are thought to be caused by _________, which occurs when an infectious agent is composed of antigens w

EastWind [94]

Answer: adaptive immune response

Explanation:

Autoimmune disorders are caused by different microoorganism and drug which manipulates the immune system in a way that immune system become unable to recognise between self antigen and foreign antigen. In that case immune system treats foreign antigen as self antigen which cause systemic or organ specific damage.

The exact cause of autoimmune disorders is unknown and hence it is thought that it is caused by adaptive immune response which builds against self antigens and causes damage to the cells.

Hence, some autoimmune disorders are thought to be caused by adaptive immune response.

4 0

2 years ago

Cells divide to make new cells.

Bogdan [553]

Answer:

Cells come from preexisting cells.

Explanation:

This statement relates to the statement that cells divide to make new cells.

3 0

2 years ago

Which may form over time from the