What molecule makes the trunk of a tree sturdy?

During a cell's development, it differentiates. How does differentiation occur? A. A developing cell's function is determined by the number of organelles it contains. B.

A newborn baby has extremely low birth weight (elbw) if it weighs less than 1000 grams. a study of the health of such children in later years examined a random sample of 219 children. their mean weight at birth was x = 810 grams.

When does en element become a different element? A. When radiation is emitted B. Only when the number of protons in the nucleus changes C. Only when the number of electrons in the outer shell changes D.

Which of these are the main working cells of the specific immune response? A) histamines and interferons, B) antigens and antibodies, C) B cells and T cells, D) self and nonself cells

If the knee was held rigid and the biceps femoris contracted, what movement would occur

Haploid sperm and egg are produced via meiosis. What process is responsible for producing the 2N zygote?

Thats not the correct answer i just took the quiz i think its c

How insulin binds to cells and the mechanism involved in triggering the cells to take in glucose?

The structure can only be found in a plant cell and not an animal cell

Why must experiments be repeated many times