About what fraction of earths fresh water is in the form of ice

True or false: Climate change, sometimes called "Global Warming", is a fast or rapid environmental change. True False

Do you think that plant cells are different than human cells? if so, how do you think they might be different? how do you think they might be the same?

What cell organelle is responsible for assembling the proteins?

Which of the following is NOT generally associated with a thunderstorm? A. tornado B. lightning C. dry air

A small population of 500 turtles on an island suddenly suffers a natural disaster leaving only 20 surviving turtles. Before the disaster, the turtles had shells with very different shell patterns.

Interference occurs when: A. two genes are far apart on a genetic map. B. a crossover causes the termination of the meiosis event in which the crossover is occurring. C.

Which of the following statements about the germ layers is NOT correct? - The germ layers (ectoderm, mesoderm, and endoderm) arise from the embryonic disk. - The endoderm gives rise to the nervous system.

Why are the oceans becoming acidic? A) Because of global cooling B) Because of excess carbon dioxide in the atmosphere reacting with water and forming carbonic acid C) Because of the dissolution corals (calcium carbonate) D) Because of alkaline rain

What is the possible genotype and phenotype for the dominant trait circular flower and recessive trait square flower

What is representative organism?