This is a specialized underground stem used in asexual reproduction and food storage

Which condition is necessary for a mold fossil to form? The fossil must be preserved in amber. Minerals must replace the remains. The mold must be filled with sediment. Hard parts of the organism must dissolve.

Scientists can determine the size of DNA fragments through a process known as gel electrophoresis. In this process, DNA is loaded into a gel submerged in a liquid solution through which an electric current is run.

The full moon always rises at sunset and sets at sunrise. True False

Where do most carbon monoxide emissions come from? cars and trucks factories planes and trains boats

Purple loosestrife is an invasive plant that was brought to the United States in the 1800s. Which of the following describes the most likely long-term consequence of the introduction of purple loosestrife? A.

What is ATP, and when is energy released from it

Why do scientists classify fish, amphibians, reptiles, birds, and mammals together in one group?

In what part of cell does replication occur

What factors influence the impact a population has on its environment?

What kind of bonds form between the oxygen atoms of one water molecule and the hydrogen atoms of another water molecule