4. A biologist observed an organisr

conclude that the cell was prokaryo

A. It was large with a cell wall, unl

B. It had a cell wall and nucleus, u

C. It was very small with a nucleus

D. It had flagella and lacked a nuc

When a cell's nucleus divides A. cytokinesis В. mitosis c. interphase

What do deserts and rainforests have in common? They are both biomes. They are both communities. They are both habitats. They are both ecosystems.

What organisms do scientists use to produce large amounts of specific proteins

What is the next step in the process after a substrate enters the active site of an enzyme

Which changes occur in the composition of the earth's layers from the core to the surface? A. The material is hotter and denser. B. The material is cooler and denser. C. The material is hotter and less dense. D. The material is cooler and less dense.

How does water pollution seem to be affecting diversity in some streams

A scientist studying algae growth in a coral reef observed that the presence of a certain type of zooplankton inhibited the algae growth. The scientist hypothesized that the zooplanton was eating the algae.

What is the purpose of soap (lysis agent) in the extraction of DNA?

In a controlled experiment, if a researcher wants to examine the effect of a high-calorie diet on an animal's weight, which of the two would be the independent variable?

TalUC 1. A sample of gold contains 3,800,000,000,000,000,000 atoms. Express this number in scientific notation.