How do we use the ocean to breathe

The best indicator of the efficiency of exercise is a. muscle soreness. b. exhaustion level. c. sweat rate. d. heart rate.

The flow of energy in an ecosystem is bestdescribed as energy moving in (1) one direction from the Sun to the producersand then to the consumers (2) one direction from a consumer to aproducer and then to the Sun as heat andlight (3) two directions

Why should you not use the term percent to indicate a portion of a larger quantity?

Analyze Some species of cichlid fish hold their fertilized eggs inside their mouths until they hatch. What might be the costs and benefits of this behavior?

Indicate what develops when abnormal cells divide and create other abnormal cells:

What type of organic compounds store the most energy? the least?

Why do you think people are willing to accept the costs as well as the benefits of using fossil fuels?

Whose brain would be most plastic? Group of answer choices A 15-year-old athlete A 21-year-old college student A 51-year-old schoolteacher A 5-year-old child

A farmer chooses to breed the cows that produce the most milk rather than the cows that produce less milk. This is an example of

Many protozoa have tiny hair-like structures that beat back and forth to aid a protozoa's movement. What are these hair-like structures called?