A sandbar that completely crosses a bay, closing it off from the open ocean, is a

A bacterial cells DNA is found in its a. capsule b. nucleoid region c. nucleus d. ribosomes

Kingdom protista cell type?

What do you call the relationship between oxygen-17 and oxygen-18?

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having developed from very similar embryonic tissues. How do biologists interpret these similarities? A.

The term "hearing impaired" is preferred by most deaf adults. true false

Choose all the answers that apply. Carbon dioxide: is a waste product of photosynthesis is released when fossil fuels are burned is the most abundant gas in the atmosphere is the leading cause of the greenhouse effect is a waste product of

16. There are 46 chromosomes in human somatic cells, but only 23 chromosomes in human sex cells. Explain what would happen if the chromosome number is not reduced before sexual reproduction:

Which of these would not be considered a genetic trait?

Does the ability of a Mycobacterium tuberculosis cell to infect a new host depend on its drug-resistant phenotype? 1. Yes, drug-resistant cells can infect a new host more easily than drug-susceptible cells. 2.

The layer of earth that contains the tectonic plates is called the