What did the presence of photosynthetic prokaryotes allow

A. more oxygen to enter the atmosphere

B. more water to enter the atmosphere

C. more sunlight to enter the atmosphere

D. more hydrogen to enter the atmosphere

Explain the process of sedimentation.

Which of the following terms represents the largest population that an ecosystem can support? A. limiting factor B. emigration rate C. carrying capacity D. growth curve

Imagine you genetically engineered a neuron to produce voltage-gated Na" and K channels that opened at the same time in response to a change in voltage.

The nurse is conducting a prenatal class explaining the various activities which will occur within the first 4 hours after birth.

Transferring a staff member who is rumored to have chronic obstructive pulmonary disease violates which of the following acts? A. Equal Employment Opportunity ActB. Americans with Disabilities ActC. Fair Labors Standards ActD. Civil Rights

Jenny went to the sale at Kohl's last week. T-shirts were on sale for $15 each and hoodies were on sale for $20 each. If she spent $150 total, write an equation to represent this situation.

ct one: a. provides support to long bones b. prevents overactivity of osteoblasts. c. allows for continued bone lengthening during maturation. d. has an unknown function.

How macromolecules are broken down and used to make new molecules.

How do soils form? A. Plants cement mineral particles together to form soil. B. Plants provide organic matter and minerals to make soil. C. Erosion transports mineral particles, and plants die and decay. D.

Give three examples of places bacteria live.