Which contains the greatest amount of unipotinent stem cells?

a. abult

b. 3 day old embryo

c. 6 week old embryo

d. blastocyst

Why do wind-pollinated plants need to produce a large amount of pollen?

What are the abiotic and biotic factors of a park?

Which of the following is a trace gas? nitrogen oxygen ozone hydrogen

As a result of these conflicts, Napoleon acquired much of ...

What is a benefit that algae provide to humans and other organisms?

Which of the following is an example of sensors working during homeostasis? a blood volume decreasing from lack of water b the pancreas failing to release insulin c acidic blood pH disrupting cell metabolism d energy demands triggering a release of

If two organisms evolve in response to each other which evolutionary pattern is demonstrated

If there is a possibility of four different genotypes in the offspring that result from a dominant-recessive inheritance, and if the couple has four children, would they definitely have children with one expressing each genotype?

The ovaries are located in the ___ cavity.

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. Eliminate C) osmosis. D) a passageway.