What is the part of an experiment that can be changed called?

How do protists eat?

Seed-bearing plants are also referred to as

A partial meadow food web is shown. Based on this food web, which organisms are direct sources of energy for secondary consumers? A) Aphid Bird Rabbit B) Ladybug Fox Dragonfly C) Frog Butterfly Berries D) Mouse Snake Hawk

Which of following is true of biochemistry

DNA is found coiled up into chromosomes within what cellular structure? 1) ribosome 2) mitochondria 3) nucleus 4) cell membrane

If you were to jog for an hour, which energy storage molecules would your body access?

What cause water to move straight out from the beach even though waves may hit an angle

Where does food go after it leaves the small intestine?

How does the Sun contribute to physical weathering? A. When water is heated, it expands, which causes rocks to break. B. Minerals in rocks heat and expand at different rates, which causes rocks to break. C.

A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these features are present in a common ancestor. Which of these predicted traits is supported by fossil evidence?