How many sex chromosomes are there in a normal human karyotype?

A. 4

B. You only need one sex chromosome, and that determines if you are a male or female.

C. 2

I'm confused ...

Organisms that eat other orgamisms are called

Which of the following processes transfers carbon directly from sea organisms to seawater? Diffusion Evaporation Photosynthesis Respiration

The f1 offspring of mendel's classic pea cross always looked like one of the two parental varieties because

The diseases which lasts for long period or occur for whole lifetime are known as

Tides and planetary orbits are caused by the

How does incoming solar radiation change with latitude? The mid-latitudes receive the most solar energy. Higher latitudes receive the least amount of solar energy. The equator receives the least amount of solar energy.

Which functional group is involved in energy release in all living cells? A. Amino group B. Carboxylic group C. Phosphate group

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Carbohydrates provide the raw fuel for

Which body parts don't fossilize because animals tend to consume them? A) bones B) muscles C) shells D) teeth