Which of the following do all disease-causing viruses need in order to reproduce?

A reverse transcriptase

B the equipment of the host cell

C amino acids

D a signal from other viruses

How does ATP enable transport proteins to move ions across a cell menbrane?

1.) Which of the following is caused by a germ cell mutation? -Asbestos Disease. -Common Cold. -Down syndrome. -Formaldehyde poisoning. 2.) which process is recombinant DNA inserted into a cell to alter the cells genetic makeup? -cell transformation.

What is the major difference between amylose and amylopectin?

Describe the two characteristics that dna needs to fulfill its role as a genetic material?

The Milky Way is a cloud of space dust and debris from planets and stars

Mark is studying jellyfish in a small body of water. Mollusks are a primary food source for jellyfish, and a large number of mollusks have recently been harvested from the area. How will this impact the carrying capacity for the jellyfish?

Summary of newton's laws and their importance to daily lives

Explain what is meant by the statement cleaner than coal

What type of cells are produced after fertilization occurs and the gametes combine? A) an egg cell B) a sperm cell C) a diploid zygote D) a haploid zygote

On a hot summer day, you notice a line of dark clouds forming. based on this observation, you go back inside and get an umbrella. what scientific skill have you used.