Different types of cells can have certain organelles and structures in common. Which types of cells definitely contain cell walls?

About how thick os the biosphere?

Which type of organic molecule is a starch? A. protein B. nucleic acid C. lipid D. carbohydrate

How long did it take the thick, fertile soil of North American prairies to develop

Sam came home from school with a cold caused by a virus and his sister, Ana, caught it from him. Sam got well and went back to school. A few days before Ana got well, Sam came down with a cold again.

Why would water stop soaking into the ground in the saturated zone?

Which of the following shows the correct unit of weight listed from largest to smallest? A. Gram, microgram, milligram, kilogram B. Microgram, milligram, gram, kilogram C. Kilogram, gram, milligram, microgram D. Milligram, microgram, kilogram, gram

Choose the incorrect statement The generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron.

Temperature can be used to measure a particle's chemical energy. ionic energy. kinetic energy. potiental energy.

What the similarities between mid ocean ridge and trenches?

The majority of water found on Earth is: ice water vapor fresh water salt water