Which is a difference between the Paleozoic and Mesozoic era?

Since computers use energy and respond to certain stimuli, why aren't they considered living things?

Match the following. 1. biosphere The zone or layer of air, land, and water at the earth's surface occupied by living things 2. extinct All the living things of a particular kind so few in number that they are threatened with extinction 3.

In a free market economy, the market, not the determines prices. The interactions of and determine the price in the market.

Mammal:does the mother's blood directly touch the embryo

Tubulin may assemble and disassemble simultaneously in a process known as Tubulin may assemble and disassemble simultaneously in a process known as dynamic instability. treadmilling. microtubule organizing. MAP motoring. actin-regulated assembly.

Which of the following is the primary function of proteins? A) transmits hereditary information from one generation to the next B) stored, concentrated energy C) builds and repairs cells and tissues in the body D) cushions and insulates organs

Which of the following best describes cell communication processes that are present in bacteria, yeast, and multicellular organisms?

During which phase of mitosis do the chromatids become chromosomes? a. telophase. b. anaphase. c. prophase. d. metaphase

How did the development of the hela cell line affect society?

The human body is composed of cells, organs, organ system and tissues. How are these organized