Communities make up a major component of an ecosystem.

True or False?

What is the second line of defense against pathogens

How would you explain Marine Biology to a 5 year old?

What is the function of the epididymis in the male reproductive system?

Read the excerpt from Midnight Assassin. Hossack and his wife, Margaret, had nine children, including five, ranging in age from thirteen to twenty-six, who were in the house at the time of the assault. Which best describes the excerpt? A.

Off of the coast of Florida, scientists are studying the effects of human activity on the local Atlantic Sailfish population. Marine chemists, marine biologists, marine geologists, and physical oceanographers are all involved in the study.

Mt. Aconcagu is the highest peak of which range

Members of Porifera are diploblastic. Which statement clarifies this? A. They are unsegmented. B. They have a true body cavity. C. They have two germ layers.

In what part of the cell does glycolysis take place

Geological evidence indicates that two landmasses, separated by a deep ocean channel, have been moving apart since 45 million years ago. You are studying a group of organisms that has widespread populations on both of the landmasses.

These are organisms produced with externally introduced genes