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

What is the relationship tween genes and chromosomes a. Chromosomes contain one or more genes b. Genes contain one or more chromosomes c. Chromosomes use DNA code to manufacture genes d. Genes use DNA code to manufacture proteins for chromosomes

If one allele is not phenotypically expressed in the presence of another, we say that it is

Use this link to read about the tundra biome, then answer the question provided. Describe animal interactions that affect populations in the tundra ecosystem.

Although there are over 100 elements in the universe, organic matter usually contains a limited number of these elements and always includes the element

Which branch of biology deals with the study of insects? Ornithology Botany Entomology Phycology

From what material is the block made

When water freezes, how does the ice compare to the liquid water? The ice has a greater mass and a greater volume than the water. The ice has the same mass but greater volume than the water. The ice has less mass and less volume than the water.

Angus is accused of having a restriction of range problem in his evaluations of coworkers. what is most likely to be true about angus?

Why might it be advantageous to use nonrenewable resources over renewable resources?

If a species can adapt to a changing environment or it's descendents will survive