What holds the base pairs of dna together

Various types of damage can lead to acute inflammation, including cuts and abrasions, heat, and microbial damage. Some microbes have structures which can trigger the acute inflammatory response when they invade tissues.

What is the purpose of oxygen in cellular respiration?

How do body systems work?

How many amino acids exist

The process of spreading culture traits from one society to another.

If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is a (n): A. lycophyte B. fern C. bryophyte D. angiosperm E. gymnosperm

Provide a pathway to let molecules go across the cell membrane

How did the scientist keep the worm stationary under the microscope so that he could see the cells divide?

Landfills are waste disposal sites. They are often man-made depressions in the ground covered with a lining designed to prevent any leakage of waste materials.

What is a gnat? an insect or a crustacean