Which tissue is most likely to provide an adequate dna sample for genetic testing?

Why do certain traits exist within a population? Traits confer some advantage. Certain traits build up over time. Each trait expresses variable fitness under equilibrium. Traits usually result in sexual selection.

What is the correct order from largest structure to smallest within the lungs? A. bronchi - trachea - bronchioles - alveoli B. bronchioles - trachea - alveoli - bronchi C. trachea - bronchi - bronchioles - alveoli D.

Green sea turtles eat sea grass that grows on the sea floor. Sea grass, a foundation species, provides an important breeding ground for fish and other marine organisms.

A dichotomous key uses A. inferences. B. DNA sequences. C. subjective descriptions. D. observable characteristics.

How do somatic and inherited mutations differ? A. Somatic mutations exist in all cells in the body and inherited mutations only exist in the cell type that mutated. B. Somatic mutations only affect males and inherited mutations affect any gender. C.

Which best explains the difference between a ball-and-stick model of a chemical compound and a space-filling model? Ball-and-stick models can show compounds in three dimensions, but space-filling models cannot.

Which of the following are not allowed on public land?

Prokaryotes that belong to the kingdom Eubacteria and carry out photosynthesis are called

Which law states that each planet revolves so that an imaginary line connecting it to the sun sweeps over equal areas in equal time intervals?

Why do you think keeping salt water shellfish such as clams and mussels in freshwater kills them? support your answer?