Tundra and

deserts both receive very little annual pre-

cipitation. Explain why the organisms in

these blomes are so different.

Why does active transport take place in the small intestine during absorption of food molecules? I thought it was only diffusion that occurs (high concentration to low)

Darin had an automobile accident in which his brother and another passenger were killed. though darin wasn't seriously hurt in the accident, he can't remember any of the accident details. darin is engaging in which ego defense mechanism?

Which statement best explains why a carbon atom can bond easily with other atoms? it is an organic element. it is an ion. it has four valence electrons. it forms hydrogen bonds.?

Which of the following best describes the structural relationship between genes, chromosomes and DNA? A. Genes consists of two long strands of chromosomes, and each of these two strands consists of molecules called DNA. B.

What kind of damage are coniferous trees resilient to

Which of the following would have the LEAST amount of momentum? A. a stationary boulder B. a boulder falling off a cliff C. a boulder rolling down a hill D. a boulder rolling along on a flat surface

How does the domain Eukarya differ from the other two domains? A) All organisms in the domain are heterotrophic. B) All organisms in the domain are multicellular. Eliminate C) All organisms in the domain have eukaryotic cells.

What would happen if your backbone and spinal cord was injured at your waist

Label the steps for protein synthesis in order, beginning with the first step. step onestep twostep threestep four step five Once the protein is made, the gene for a particular trait is expressed.

In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism.