If a star is moving toward Earth, it is

A. expanding

B. red shifted

C. blue shifted

D. shrinking

Describe an organism that uses both asexual and sexual reproduction

Select the items that describe the Amish culture. speak Creole or Spanish wear simple clothing embrace technology live in farming communities use horse-drawn vehicles value education are frequent moviegoers

Use the following information to answer the question. A group of six students has taken samples of their own cheek cells, purified the DNA, and used a restriction enzyme known to cut at zero, one, or two sites in a particular gene of interest.

You are asked to culture an unidentified sample of animal tissue. You notice that the cells seem to fail to exhibit density-dependent inhibition. The source of this tissue sample is most likely

Briefly explain why it's important to know how cells function

Which of the following has the strongest gravitational pull on the earth? A. moon B. Earths magnetic core C. the atmosphere D. the sun

Ep-31 which is the major cause of fatalities involving small boats

When an enzyme catalyzes a reaction: a. substrate (s bind in the active site b. products bind in the active site c. the shape of the enzyme remains unchanged d. the enzyme is consumed by thereaction?

How do the islands of Hawaii compared to the volcanoes on land

How does the respiratory system interact with the circulatory system? A. The circulatory system removes oxygen from the body to make room for carbon dioxide in the respiratory system. B.