Which of the following is an organic activity?

a. root-pry

b. abrasion

c. carbonation

d. exfoliation

What is the definition of "Mass"?

The two structures that limit transpiration are known as a. Guard cells and xylem b. Stomata and guard cells c. xylem and phloem d. stomata and phloem

Why can the giant baleen whales grow so large? Give two reasons to support your answer.

Describe what would happen to the abiotic factors within the ecosystem if the bacteria were eradicated from the ecosystem.

The DNA of virus A is inserted into the protein coat of virus B. The combination virus is used to infect E. coli. The virus particles produced by the infection are analyzed for DNA and protein. What results would you expect? A.

What is the correct definition of a species? A. A population of creatures who all look the same B. A population of creatures who are all the same size C. A population whose members are all the same color D.

Which of the following hormones increases smooth muscle contraction?

It is important to share data from scientific experiments with others. Which of the following methods is a valid way to present collected data?

What are the characteristics of eukarya

you are studying enzymes in biology class. hydrogen peroxide (h2o2) is produced as a byproduct of respiration. hydrogen peroxide is harmful to cells and must be continually broken down.