In which kingdoms are both unicellular and multicellular organisms found?

15. The first known bird fossils date to which era of time? A. Permian OB. Triassic O C. Jurassic O D. Cambrian

If an atom has 42 protons and 36 neutrons, how many electrons will it have?

Which of the following characteristics is shared by all organisms? A. all organisms are composed of two cells B. all organisms can smell and taste C. all organisms have cells that contain DNA

The ingestion of a meal high in fat content would cause which of the following to occur? A. This type of food would cause secretion of gastrin to cease, causing digestive upset. B.

You explain or interpret an observation using your current knowledge you are

Generally, animals cannot digest (hydrolyze) the glycosidic linkages between the glucose molecules in cellulose. How then do cows get enough nutrients from eating grass? A. They have to eat a lot of it. B.

The process in which body cells are duplicated in order to grow and repair body tissue is called what

Parasitism is a relationship in which one species benefits and the other does not benefit. True or False?

What are the visible legs that appear when DNA strands coil and condense

What are genes? How are they related to traits?