What does a cell have that determines if it is prokaryotic or eukaryotic?

1) DNA

2) organelles

3) proteins

4) a cell membrane

Which process (es) introduce oxygen into the ocean. mixing only industrial wastes mixing and photosynthesis chemical equilibrium

Which substance acts as a buffer in natural water? A) minerals and salt B) distilled water C) sulfuric acid D) a pH indicator

What is one physiological process or body region that is highly sensitive to pH fluctuations? What everyday changes can be made to influence the pH of this process or region?

What animals can eat chocolate

A scientist has a fossil that was found in a layer of rock close to the Earth's surface. He believes that the fossil is around 12,000 years old.

When erosion occurs here in Southeast Michigan, what layers are eroded away first?

Which structures regulate water loss and gas exchange in the leaves of plants

Name an organism in each domain: archaea, bacteria, eukarya

A cell containing 92 chromatids at metaphase of mitosis would

A client who had a myocardial infarction is in the coronary care unit on a cardiac monitor. the nurse observes runs of ventricular tachycardia on the screen. what medication should the nurse prepare to administer?