A blastula is

a. the innermost germ layer.

b. a hollow ball of cells in an embryo.

c. a digestive organ.

d. a stage of development before a zygote.

1. For this task, you will imagine that you are a reporter for a scientific magazine. Your task is to explain the process of protein synthesis to someone who does NOT have a science background.

When hypersensitivities or an immune system's response causes tissue damage as it fights off a perceived threat that would otherwise be harmless to the body, it is called a (n?

How did Mary Montagu discover a vaccine for smallpox

The clumping of blood from mismatched blood types is a problem for a patient because

What does food pass through in order to get from the stomach to the small intestine?

Which of the following would most likely employ a forester? A. a state governments B. lumber businesses C. national govemments D. all of the above

How do environmental scientists use technology to track polar bears?

A rock formed from liquid magma at temperatures above 1000 degrees Celsius and the. Cooked and hardened what type of rock is it

You sample a population of butterflies and find that 56% are heterozygous at a particular locus. What should be the frequency of the recessive allele in this population? A. 0.07 B. 0.08 C. 0.09 D. 0.70

If there is a mutation in a zygote, where is it likely to be found in the fetus? A: The mutation will show up in any fetal cells formed by mitosis but not in those formed by meiosis.