In your own words, explain how fossil records of the past are reliable sources of information about evolution of life on Earth.

What does an atom do

When you hear the word invasive species what do you think of? How do you think an invasive species will compare to a native species in an area?

What are bacteria is needed in the nitrogen cycle

What is fluid friction? A. When two solid surfaces slide past one another B. When air, water, or oil flow next to a solid. C. When an object rolls across a surface. D. When objects move through sand.

Consider this plant cell, which organelle is labeled A

Which statement best illustrates that problem solving can create new medical devices? Robert Hooke was in charge of verifying the information that was sent to the Royal academy.

A logical interpretation based on observations

Which layer of Earth acts as a very effective "insulator," because it's made of rock?

A mother brings her three-year-old daughter to her pediatric office stating that the girl has had fever and chills for three days. the girl also has a large, intensely red patch with a distinct margin on her leg and a nearby swollen lymph node.

Why is it necessary for the genetic material in a cell to exist in chromatin form during normal cellular activity, and not in chromosome form?