The shells of amniotic eggs have pores that allow oxygen and carbon dioxide to pass through. True or false?

What's the greenhouse effect? A. The release of extra moisture from water vapor B. Human-caused global warming C. The regulation of atmospheric and surface temperatures D. The trapping of warm air in cities

A dam is built in a remote area to provide electricity to nearby towns what is an unlikely effect of the dam A.) decreased farming downstream from the infertile soil B.) increased weed growth downstream from clear water C.

How long can food be left out at room temperature is it 1,4,2 or 8 hours?

Which is a difference between antibodies and antigens?

Which best describes the characteristics of a river basin? A. the land drained by a river and its tributaries B. the land formed when rivers create estuaries and marshes C. the land at the mouth of a river where water flows into the ocean D.

Chemical reactions that release energy Question 6 options: will always explode. need catalysts to occur. often occur spontaneously. will not occur.

Match the amino acid (AA) with its correct side chain category: 1) proline A) acidic AA 2) histidine B) nonpolar AA 3) alanine C) basic AA 4) threonine D) polar AA 5) tryptophan 6) aspartic acid

In which structure of the female reproductive system are eggs priduced

In a forest, rabbits are the prey to owls. An increase in the number of rabbits in the forest would result in Group of answer choices A. an increase in the number of owls. B. an increase in the number of producers.

How are viruses different from bacteria Bacteria are heterotrophic while viruses are autotrophic. Bacteria are living organisms; viruses are not. Bacteria have a membrane bound nucleus while viruses do not.