18. In replication of DNA, the helix is opened and what is unzipped?

A. Nitrogen bond

C. Oxygen bond

B. Hydrogen bond D. Phosphate bond

What is chordate and give example of chordate

Most irregular galaxies are thought to have formed

When a few intracellular mediator molecules activate several enzymes, and each of these activated enzymes activate still other enzymes, the hormone has initiated Select one: a. a cascade effect. b. a double loop effect. c. a protein kinase effect. d.

What causes the instant withdrawal reflex interneurons?

The meshwork that forms the fabric of a blood clot is

3) Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave

Which process releases the most amount of energy aerobic respiration or photosynthesis?

The human body is organized into systems that carry out all functions by working together. which activity in the body most closely describes a relationship between the circulatory system and the digestive system? a.

What happens in chemosynthesis

15. Define budding and cloning. How are they the same? How are they different?