Is crossing over a form of genetic mutation? Why or why not?

Which statement among A-D is false regarding the standard plate count method? A. It utilizes a standard dilution procedure called serial dilution. B. It measures both live and dead cells in the liquid sample. C.

Answer and explain your answer: antibiotics can treat bacteria or virus causing illnesses?

during exercise or running, blood flow and breathing rate increase to transport oxygen to the muscles, causing an increase in heart rate. What system is being used.

If two genes show nearly 100 percent linkage, what does that tell us? Select all that apply. a) The two genes are on separate chromosomes. b) The two genes are always inherited together. c) The two genes are on the same chromosome.

In 1986, hundreds of islands were created out of hilltops when venezuela was flooded because of a closed dam. on all of these new islands, the top predators in the food chain, such jaguars and eagles, either fled or died out.

Which of the following is an example of a natural resource? a. water b. ice c. oxygen d. all of the above

A student studying the following pedigree states that person #9 is homozygous for a dominant trait. Explain how she was able to determine this ... A) because both male and female members of this family display the trait.

It is more common for drug-related deaths to be a result of what of drug-taking behavior? multiple-drug (polydrug) overdose of a single drug drug abuse after alcohol poisoning

What are the possible effects of contaminated water on the health of an individual or community? Explain your answer in terms of what causes the contamination, the types of infectious agents involved in the related diseases, and how these diseases

When a mass increases, its gravitational force A. Increases B. decreases C. stays the same