Down syndrome most often occurs when

Sponges A. Are nonsymmetrical and have oscula B. Lack organization into tissues and organs but have specialized cells C. Possess cells that are capable of recognizing other sponge cells and have a simple digestive system D. Both a and b

The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L?

Environmental sustainability is the responsible interaction with the environment to avoid depletion or degradation of natural resources.

If there are 27 adenine bases in a DNA strand, how many thymine bases would there be? And explain why.

Which phrase describes a population? an area characterized by a group of plants and animals a nonliving factor in an organism's environment all the organisms that interact in a lake all the gray squirrels that live in a forest

What are the three sections of the large intestine and what roles does each play in digestion or absorption?

During high intensity exercise, lactate can be converted to which substance via the cori cycle?

Which field of anthropology studies human characteristics including hair color, height, skin color and brain size?

Which term best describes a protein that speeds up chemical reactions in living things

How many bases are need to specify three amino acids