What is white blood cell?

Within the cells of plants that form the xylem and phloem a unique process occurs. The water molecules bond to each other. What is this process called? O a. covalent bonding Ob. cohesion O c. adhesion O d. nonpolar

Why did Gregor Mendel use pea plants in his experiments

Northern coniferous forests, characterized by long, cold winters and conifers with short needles, are the largest terrestrial biome. true or false? a. True b. False

Astronauts have been exploring outer space in manned spacecraft since 1961. Which of the following would have made it very dangerous for people to explore outer space? A. if the Earth's orbit passed through dense meteoroid fields B.

Which idea was Lamarck's theory of Evolution based upon? natural selection variation in populations inheritance of acquired traits descent with modification

Are surface currents that flow towards the equator generally warm or cold?

Identify the following as part of active transport or passive transport. transport protein binds with the needed molecule a. active transport b. passive transport

Gametogenesis is the term for a. the fertilization of eggs. b. the development of polar bodies. c. the movement of sperm. d. the production of gametes.

Why is glucose needed for cellular respiration?

Which type of galaxy probably started as a different shape and then changed over time