Which of the following is involved in "double fertilization"?

a-sperm

b-endosperm

c-embryo sac

d-all of the above

Does the study of disease require Science? If yes, why?

Plant cells use photosynthesis to make food. Plant cells also use cellular respiration to get energy from the food they make. How is cellular respiration different from photosynthesis?

Cellular differentiation progressively restricts cell fate because the unexpressed genes in the cell:

Which of the following was originally used to measure bone density?

A lion gets more or less energy from eating a gazelle than the gazelle gets from eating grass.

What is the product that is found in meiosis

Beekeepers and scientists are puzzled and troubled by a decline in bee populations around the world. what would you predict as a likely consequence of the widespread lack of bees?

Explain how bar graphs can show comparison between 2 topics

What is required for reactants to form bonds?

True or False: Pumpkins only come in one color, orange. True. False