How long were simple microsocpic organisms the only life forms on earth?

The word which means to cut into two parts is a. dichotomy b. wedge c. binomial

Viruses cannot reproduce on their own and require a host organism to do it for them. This is one reason viruses are not considered to be alive

Both passive and active transport are used to move molecules into and out of cells. True or False

Are a type of lymphocyte whose purpose is to destroy substances foreign to the body by puncturing invaded body cells and killing the cells and foreign substances. t cells.

You need to explain to your study group why the breathing ability of amniotes is different than that of amphibians. Your classmates argue that something like a terrestrial salamander is identical in its breathing mechanism to an amniote.

Force which we witnessed after a sock and balloon were rubbed together.

Which fossil occurs on the most landmasses

Which statement is NOT true about subatomic particles? a. Protons are found in the nucleus. b. Neutrons have no electrical charge. c. Electrons contain much less mass than neutrons. d. Electrons are found in orbitals around the nucleus. e.

Witch came first the chicken or the egg

Which of the following genotypes could be described as homozygous dominant