Which of the following contains stem cells that can produce only their own type of cells

A. blastocyst

B. adult

C. 3-day-old embryo

D. 6-week-old embryo

A client has been admitted to the critical care unit with a diagnosis of peritonitis that has necessitated treatment with gentamicin.

You need to explain to your study group why the breathing ability of amniotes is different than that of amphibians. Your classmates argue that something like a terrestrial salamander is identical in its breathing mechanism to an amniote.

What are two things that all non vascular plants share?

1. The fog on the mirror is caused by which change of state? Melting Freezing Condensation Vaporization 2. Using the answer you chose in question #1, explain how the change of state is occuring.

A glacier recedes and exposes bare rock. Which of the following will most likely occur next? A. The bare rock will quickly break down into soil. B. Small animals will move into the area. C. Lichen will colonize the bare rock. D.

The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell.

What similarity do animals and plants share?

This is a model of a bacterial cell. What statement about the structure and function of bacterial cell parts is correct? A) DNA is contained in a primitive nucleus. B) Energy for movement is generated in the pilli.

How can the locations where ancient fossils are found be used as evidence for continental drift

Many songbirds breed in North America in the spring and summer and then migrate to Central and South America in the fall.