Which one of the biomes is considered endangered? What does this mean?

What happens to the chromosomes during the second division?

Levels of organization of the biosphere

Distinguish lycopodium from equisetum

Which division of the nervous system has long preganglionic neurons?

How did Galileo's father influence his interest in scientific experimentation? (site 1)

What did Chargaff discover while studying bases in the DNA of organisms? The bases in the DNA of each organism were unique. The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.

What is one way a plane can form?

Where does diffusion take place

Why are acquired traits unimportant in the process of evolution?

Imagine you are sitting with your leg at rest and free to move in all directions. An experimenter inserts an electrode into a muscle spindle stretch receptor neuron in one of your quadriceps muscles and excites (depolarizes) the cell, enough that