Explain why it is important that scientists only test one independent variable at a time in an experiment.

Choose the definition of: Invertebrates A. have a backbone B. having lost a backbone C. Having no backbone D. having several backbones

How has gene duplication played a critical role in evolution?

Answer the following:1. What is the purpose of flaming an inoculating loop? 2. How will you know when you have flamed the loop or needle long enough? 3. Why is it necessary to cool the inoculating loop prior to obtaining the bacterial sample? 4.

Which of these processes is responsible for generating the most ATP within cellular respiration? A. Glycolysis B. The breakdown of glucose into pyruvic acid C. Krebs cycle D. The electron transport chain

Which planet's atmosphere most resembles that of Earth?

What will likely happen to the body if the joints are stiff, infected or not functioning as expected?

A child with a bloated belly, thin hair, and an inability to concentrate may be suffering from malnutrition

In most species, the female frog lays her eggs directly in the water as a male clasps her back and releases sperm. The fertilized eggs hatch into legless, aquatic tadpoles. Most tadpoles feed on algae, and have gills.

Part 2: Research one major hurricane, category 4 or greater, from any time period. In two or more complete sentences, describe the hurricane. Include the name of the hurricane, date, location, and category.

The nucleolus of the cell is found within the a. chromosomes. b. nucleus. c. Golgi apparatus. d. endoplasmic reticulum.