In an experimental investigation the group that is not manipulated by the researcher and is then compared to the experimental group is called the blank group? fill in the blank.

What is the importance of vascular tissue? a. transports water and nutrients through the plant b. allows for more efficient fertilization c. allows the plant to grow taller d. a and c e. a, b and c

Which term describes the action of lions and hyenas fighting for the right to eat a dead gazelle? A. Carrying capacity B. Biomass C. Interspecific competition D. Intraspecific competition

A DNA segment removed from neurospora (a pink mold) contained the base sequence G-T-C-C-A-T-G-C-A. A similar segment of DNA removed from neurospora that had been exposed to radiation for several hours had the base sequence G-T-C-C-A-T.

A hybrid plant for inflated pod shape was crossed with a plant with pinched shaped pods. If pinched is recessive to inflated what are the possible genotypes and phenotypes of the offspring? What is the probability the offspring will be pinched?

An adult daughter whose mother has bipolar disorder is concerned that she may also have the disorder because she engages in all of the following behaviors. Which behavior should be explored further as a manifestation of bipolar disorder?

Why are spiders considered to be an r selected species?

What are restriction enzymes used for in nature?

Material with bits of rocks and once living parts of animals are

Think about a flower growing in your garden you notice that all of the leaves are falling off why is this a problem for the plant

How does polymerase chain reaction make DNA fingerprinting more reliable