Earth / Space Science

Answer quickly and ill give you brainliest.

During which eon did oxygen first appear in the atmosphere?

A. Hadean

B. Archean

C. Proterozoic

D. Phanerozoic

What is a gene pool?

Katie, a 45-year-old patient with breast cancer, is currently undergoing chemotherapy. she is started on epoetin alfa secondary to decreased hemoglobin and hematocrit levels.

Which of these is not true about jovian planets? a. relatively large size b. relatively low density c. primarily rocky, metallic compositions d. relatively large number of moons?

Keystone species play a key role in

2. Give examples of the different types of organisms found in your MPA.

Which carbohydrate source is found in small concentrations in tsi media, allowing the investigator to differentiate between organisms that can only ferment this monosaccharide and those that are able to ferment other available carbohydrate sources?

You are a geneticist trying to develop a sunflower with red flowers and a short stem. as you compare the sunflowers you have, what genetic variations would you look for? what kinds of plants would you select for crossing?

How are Amino acids linked to become proteins?

1. Explain what is the "Sea Floor Spread" with examples. 2. Explain "Continental Slide" with your own example. 3. How do you explain Transform Boundary after going through the "Slippin' and a Slidin' ".

Differences between prokaryotic and eukaryotic promoters?