Penicillin is made from:

fungi

bacteria

viruses

protozoa

A botanist discovers a new plant in the jungle. Which of the following observations of the plant's characteristics would be useful in determining its identity with a dichotomous key? A. Its leaves curl up on the edges. B.

Where does the second step of protein synthesis occur?

Describe the path that air takes as it enters and passes through the human respiratory system.

What is a common ancestor?

A fly eats a piece of fruit, A spider eats the fly, a bird eats the spider. The bird dies, and is decomposed. Which organism is the producer?

One turn of the citric acid cycle ultimately generates approximately 20 atp.

During an experiment, the same type of bacteria is grown in two petri dishes. Petri dish A has a diameter of 51 mm and has approximately 40,000 bacteria after 1 hour.

In which phase of the cell cycle are cells most often found?

Which is true about metals used for jewelry such as platinum and gold

Wetlands and estuaries are critical ecosystems, but do not require protection. T F