Function on their own unicellular organisms must do what

a do all jobs for survival

b make tissue

c perform specialized task

d work with other cells

Which organism is not a consumer? A. bacteria B. snake C. grass D. owl

The element lithium has two stable isotopes, Li-6 and Li-7. How do the atomic structures of these two isotopes compare? A) Both have 3 protons and 3 electrons, but Li-7 has 4 neutrons. B) Both have 3 protons and 4 neutrons, but Li-7 has 4 electrons.

Solar energy that has been absorbed by the hydrosphere is transported around the Earth by?

What type of energy transformation takes place when carbon is circled during cellular respiration chemical energy to chemical energy chemical energy to electrical energy mechanical energy to chemical energy mechanical energy to mechanical energy

Which of the following occurs after topsoil is washed away? deforestation desertification irrigation pollution

Under the microscope, a cell shows formation of centrosomes and spindle microtubules. What will happen next?

What is a measurement of the earth's history divided into time periods A) fossil record B) sedimentary rocks C) geologic time scale D) radioactive elements

The initial organisms on earth were essentially prokaryotic heterotrophs. how did they obtain their energy?

Lynx feed on rabbits, and the growth curves for these two species fluctuate together. This relationship is an example of a (n) Select one: a. S-shaped growth curve. b. J-shaped growth curve. c. irregular fluctuations. tightly linked cycle.

Where did the marine life most affected by the extinction live? 1. The Arctic Circle 2. Rivers And Streams 3. Warm Tropical Waters 4. None Of The Above