Why can carbon form very large molecules?

(A) Its + 4 valence forms ionic bonds.

(b) It has a natural ionic charge of + 4.

(c) It can bond with other carbon atoms that are bonded to other molecules

If you looked under a micropscope and saw a cell with a cell wall and chloroplasts, you would know that the cell is

How many chromosomes do people with down syndrome have?

A substance with pH of 6 is called an?

What do these characteristics all have in common? A. They are all dominant. B. They can all be easily observed. C. They are all recessive. D. They can all be applied to other plants.

Which is an accurate description of the processes used to turn the DNA code of a gene into a protein? Select one: a. It takes one DNA base to code for three amino acids in a protein. b. Transfer RNA molecules carry the messenger RNA to the ribosome.

What happens when no oxygen is present after glycolysis?

The process by which organisms best suited for the environment survive is called

Which type of organism most likely evolves first

Which is not an example of a culture hearth? A. Mayan influence on Central America B. Olmec influence on Mexico C. China's influence on East Asia D. United States' influence on Canada

Which domain includes organisms that are called extremophiles?