Which phrase describes estuaries?

are made of fresh water only

are areas where rivers flow into lakes

are homes to unique plants and animals

are places where all of Virginia's water drains

What condition might allow a contractile vacuole to pump more quickly or pump more slowly?

Write two sentences using at least three abbreviations to describe a scenario that you might encounter related to the digestive system.

Way to prevent soil erosion

You are a forensic biologist and have been asked to review the files of an old, unsolved murder case. The autopsy report is missing a lot of important information, but you read that the victim had a thymus gland that was just starting to shrink.

Which of the following statements is true? The angle of refracted light is equal and opposite to the angle of incoming light. A magnetic field can be created by running an electric current through a magnet. Exothermic chemical reactions absorb heat.

How are adaptations related to the environment?

The vectors used to transmit a gene segment is a

Which of the following is FALSE regarding the DNA double helix? a. The two strands exhibit complementary base pairing. b. The four nitrogenous bases found in it are A, T, C and G. c. The two strands are parallel. d.

Li was experiencing fatigue, despite sleeping eight hours per night. He went to the doctor and was diagnosed with iron-deficiency anemia. The doctor recommended he eat iron-fortified breakfast cereals.

Describe the water that is most likely to float on the surface of the ocean.