Nuclear energy is a useful source of power but has disadvantages. What is a disadvantage of nuclear energy?

A. It has products that break down quickly.
B. It produces dangerous waste.
C. It is limitless and does not create carbon dioxide.
D. It is expensive and produces little power.

In the practice of science, this type of reasoning is used to develop explanations.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell