Because they want to know how to kill the virus so they can cure people
Answer:
The birds are oviparous in nature and produces eggs that are hatched later by the parent. the egg hatching require proper heat and protection from the external enemy.
The egg shell is the hard covering of the egg of the bird that is made of the calcium. The egg shell protect the egg from the external environment. The calcium layer for the egg shell formation is obtained by the oseteoclast property of the cells.
Answer:
option B
Explanation:
there are 22 pair of autosome and 2 pair of sex chromosome
This is because iron is used to make a protein called hemoglobin. This protein helps blood cells carry oxygen around the body.
Answer:
ribosomes
Explanation:
thye produce the things needed for the cell membrane
