Which of these sedimentary rocks is made of shells and the remains of marine organisms?

mudstone

rock gypsum

limestone

sandstone

A (an) is a procedure that changes only one variable at a time and keeps others constant

The success of organisms depends largely on their adaptions to their particular environment. What adaptations does the wood frog have that allow it to survive in the deciduous forest?

Modern humans belong to the group of hominids known as?

Are there always going to be an equal number if guanine and cytosine molecules is DNA

Select the correct sequence of steps as energy is extracted from glucose during cellular respiration. electron transport chain - > citric acid cycle - > glycolysis - > acetyl CoA glycolysis - > acetyl CoA - > citric acid cycle - > electron transport

If you push a chair across the floor at a constant velocity, how does the force compare with the force you exert

A hiker climbs a hill. How does the potential energy of the hiker change as she climbs higher?

Match the following events with the appropriate stage / process of cell division: Centrosome movement Homologous chromosomes separate DNA exchange Chromatids separate A. Prophase I B. Anaphase I C. Crossing over D. Anaphase II E. Prophase II F.

What are the 3 smaller parts of an atom? what are their charges?

List five invertebrate groups in the animal family tree