Which of the following events would most unpredictably affect an ecosystem?

A. the removal of one old tree

B. a mutation in a native bacteria

C. the annual birth of a new generation of deer

D. a rainstorm that causes minor flooding.

Success in sport competition such as a 220-yd sprint run requires a highly trained: a. aerobic energy system b lactic acid energy system c. ATP-CP energy system d. b and c

What is the state of matter that has particles that slide by one another

Which of these could be a good reason to end a dating relationship? A. One partner uses physical violence. B. Both partners accept responsibility for their behavior. C. One partner regularly says nice things about the other partner. D.

Use the periodic table to complete each nuclear fusion equation. 2 1 H + 3 1 H → A B He A: B: 14 7 N + 1 1 H → C D E C: D: E:

When during a cell's life cycle does DNA replication occur? Interphase Before mitosis After mitosis All of the above

Scientists use specific levels of organization in order to analyze the biosphere. The Everglades are a large area of subtropical wetlands found in Florida.

How do I win a warzone match?

What is the function of a gene?

Explain the anthropogenic (man-made) impact on the Carbon Cycle.

Species are subdivided into smaller groups called subspecies. For people, the human species is subdivided into smaller groups called a. ethnic groups b. species c. breeding populations d. races e. all of the above