The principle stating that the oldest rocks occur on the bottom of an undisturbed rock sequence is known as A. superposition. B. original juxtaposition. C. original parallelism. D. relative age dating.

One direction imagine you have a sore throat. the doctor says it is a bacterial infection. why would you conclude that it is not caused by archaebacteria.

Which of the following statements is true for both prokaryotic and eukaryotic cells? Choose 1 answer: Mitochondria produce ATP through cellular respiration. The rough endoplasmic reticulum synthesizes lipids and modifies proteins.

How is respiration different from breathing?

Which class of Phylum Chordata includes animals with feathers and porous, lightweight bones?

In the photograph of stephen's isle below, what change in the environment could account for this sequence of rocks?

What three cellular structures are found in plant cells but not animal cells? A. Mitochondria, ribosomes, and a cytoskeleton B. Cell wall, mitochondria, and a plasma membrane C. Cell wall, chloroplasts, and a large vacuole

Digestive enzymes are breaking down the soft tissues of the body: A. 1-3 days B. 4-10 days C. 10-25 days D. 20-50 days E. After 50 days

The buildup of the products of nucleic acid metabolism can lead to

Which of these organs did the earliest plants have? stem leaf roots seeds

1. The number of flowers on different breeds of bushes in a greenhouse is recorded every week for two months. a. Scientific Question: what is the scientific question for this sentence?