The first question is the first option (4 haploid cells; 2 diploid cells).
The second question is the first option also (nitrogen).
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Answer:
Option(C): drinking water from streams and ponds
Answer:EVERY OBJECT REMAIN AT THE STATE OF REST IN A UNIFORM MOTION UNLESS AN EXTERNAL FORCE ACTED UPON IT
Explanation:
Answer:the villi of the intestine
Explanation:like the cristae of the mitochondria which increase the surface area for the production of ATP,the villi of the intestine acts similarly.
In animals, digested food pass from the stomach to the intestine. In the intestine , enzymes acts on the food. Absorption of food takes place there and there are some structures that facilitates it. The walls of the intestine have numerous foldings , alongside the presence of finger like projection called villi. Microvilli are also presence from the cell walls of the intestine . These projections increase the surface area for the absorbing of food .they brush against food in the intestine and promotes absorption of nutrients.
Answer:
F. The sequence of an animals' DNA is how scientist classify modern animals