During the Devonian period of Gondwanaland what were the two organisms that thrived?

A)

algae and Trilobites

B)

land invertebrates and dinosaurs

C)

conifers and early mammals

D)

angiosperms and humans

E)

marine invertebrates and land plants

Suppose that a man has brown eyes. His genotype is Bb. He got the B gene from his mother and the b gene from his father.

Environmental racism is the placement of toxic producing waste sites and plants where

What type of reproduction results in offspring that are genetically different from the parents

What would you expect r to be for a population of dolphins that is observed for many years in the same place?

During transcriptions, nucleotides are bonded together in a polymer by the enzyme DNA polymerase. [ ] True [ ] False

What is the function of a nucleus in a cell the nucleus A. controlls the cells activity B. the nucleus identifies the cell as belonging to a plant C. the nucleus determines what substances enter and leave the cell D.

Which best describes emerging scientific ideas? a. never been tested b. unpublished c. supported by most, but not all, scientists d. not studied by many scientists

A sonic boom is produced by a jet. What can you determine about the jet's motion? a) It is near a mountain where echos can be produced b) Its engines produced backfire c) It is increasing in altitude d) It is traveling faster than the speed of

What happens when someone dies?

As the mass of an object increases, so does its gravitational force. true or false