Analogous structures!
Analogous structures are things that look similar and serve similar functions but do not come from a common ancestor.
the term was coined by the Charles Darwin in which he specifies two reasons for an organism to survive and reproduce
1. Fitness. it is the ability of an organism to reproduce and survive in an environment
2. Adaptation. the inherited qualities and characteristics which increases chances of human survival.
the term is fitness
<h2>Answer with Explanation </h2>
The elements that are required for the human body are in fixed percentages Whatever the weight of a person the percentage remains the same. Like 70-90% water is present in the human body whatever the weight of a person but the percentage of water remains the same in the body. There are six main elements present in the body which are basic and necessary for the human body are oxygen, nitrogen, carbon, phosphorus, calcium, and hydrogen.
Answer:
Mg - 2
Cl - 1
Explanation:
using criss cross method Mg subscript is 1 and for Cl is 2
<span>pretty sure its External pulmonary respiration because the blood gains o2 and loses co2 </span>
