The stage of prenatal development during which MOST miscarriages are likely to occur is the

a. zygotic stage.

b. germinal stage.

c. fetal stage.

d. embryonic stage.

Ocean productivity varies seasonally why?

What enhances the binding of rna polymerase?

Gradual process of a species becoming extinct

If an organism has alleles BB, it is

About haw many chloroplasts can be found in photosynthetic cells

1. true false Carbon atoms form the building blocks of most living things.

Inhibiting enzymes involved in cell wall synthesis leads to which of the following? A) cell death by osmotic lysisB) a reduction in protein synthesisC) the incomplete synthesis of the bacterial cell wallD) a reduction in the amount of usable energy

In the 20th century where did the most ecologically destructive oil spill in the US

Which of the activities listed below are functions of the Lymphatic System? 1 transports lipids to the blood 2 transports lipid-soluble vitamins to the blood 3 drains excess interstitial fluid from tissue spaces and returns it to the blood 4

Under which circumstances must facilitated diffusion be used instead of simple diffusion?