Answer:
In its astrobiology roadmap, NASA has defined the principal habitability criteria as "extended regions of liquid water, conditions favorable for the assembly of complex organic molecules, and energy sources to sustain metabolism".
Explanation:
Answer:
I think autotrophs by using photosynthesis
Explanation:
Answer:D
Explanation
Liver is not involved in the product of blood clotting protein rather it is involved in the production of two hormones insulin and glucagon that play roles in regulating blood sugar.
The correct answer is B. Thymus gland: enables immature lymphocytes to mature into T cells
