Answer:
One fertilizes the egg, and the other combines with the two polar nuclei.
Explanation:
Answer:
a. veins and arteries
b.diaphragm
c.kidney
d.lung
e.4
f.left auricle(atrium) , right auricle(atrium)
g.left ventricle, right ventricle
h.blood plasma
i.digestive
j.buccal cavity ,saliva
k.bile
l.excretory
m.kidneys
Explanation:
There are two events,
A: the selection belongs to the specific species, or
A' : the selection does not belong to the specific species.
Mainly by nitrogen-fixing bacteria in the soil and oceans
Answer:
Q1ans-Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women
Q2ans.All the above
