What kind of lipids make up the bilayer that forms cell membranes

Your body has 25 to 30 million red blood cells, and every second, your body makes about two million new red blood cells.

As atp binds to the myosin head at the beginning of a muscle contraction cycle, the myosin head immediately

If a dna molecule is made up of 42% guanine what percent of it would be adenine

The hallmark manifestations of Cushing syndrome are a moon face, a "buffalo hump" between the shoulder blades, and a protruding abdomen. What other manifestations of Cushing syndrome occur?

If a radioactive nuclide has a half-life of 1.3 billion years, and it is determined that a rock contains 50% of its original amount of this nuclide, about how old is the rock?

Metamorphic rocks can be made up of newly-crystallized minerals formed during metamorphism but they can also include pre-existing minerals unchanged since their crystallization in an igneous rock.

How do the lungs of spiders differ from human lungs?

Newly formed sperm cells pass through the seminiferous tubules to the

Is it possible to have a food web without producers? Explain

Waves in the ocean transfer energy in which direction?