The pollutants in 1970 were the highest since recorded history and are declining steadily.
Genetic defect is the most likely cause for a miscarriage during the first three months of pregnancy. The most likely time for a miscarriage is during the first three months of pregnancy. It is the common type of pregnancy loss or spontaneous abortion, it is the natural death of an embryo or fetus before it is able to survive independently.
No the right answer is A. Homeostasis allows organisms to regulate their temperature because it makes sure the organisms cells do not burst or shrink. This allows the organism to survive.
Answer:
C
Explanation:
I don't got an explanation I just know
I think the correct answer from the choices listed above is option B. Keratin is the protein in mammals which shows only a primary and secondary structure. Keratin is a fibrous protein forming the structural constituent of hair, feathers, hoofs, claws and many others.