How was the earth first formed?

In lab, you use a special balloon that is permeable to water but not sucrose to make an "artificial cell".

Which sentence describes one difference between dna and rna?

An organism lives in a container with very little oxygen. It produces ethanol and carbon dioxide as waste products. Which process does it use to produce most of its ATP molecules? A. Lactic acid fermentation B. Glycolysis C.

Which of the following describes how polluted water sources would most likely affect one's personal health?. Answer. Bacteria would enter the body and inhibit a specific immune response ...

What would happen if there was no greenhouse effect? A) The Sun's heat would be scattered back into space and would not reach Earth. B) Earth's atmosphere would be much cleaner, because there would be no pollutants.

What is the basic cause of ocean tides? A. Gravitational attraction between the Moon and the entire solar system B. Gravitational force of atmospheric pressure C. Gravitational force of volcanic activity D.

Which type of chromosomal mutation causes this form of Down syndrome?

Chlorine is added to kill remaining microorganisms in the water. true or false.

Sensation is the process by which our sensory receptors and nervous system take in stimulus energies from the environment;

1) which of the following describes part of a phenotype? A) Gg. B) homozygous. C) having frekeles. D) heterozygous.