Explain how concentration is calculated

6. How are humans affecting global climate change?

In Martians, black eyes (B) are dominant over yellow eyes (b). A black-eyed Martian marries a yellow-eyed Martian and they have three children, two of the Martian kids have black eyes and one has yellow eyes.

DNA replication allows the basic units called

yellow is a dominant trait in peas. If two heterozygous parents are crossed what percentage of the offspring would be genetically identical to the parents

You have two solid substances that look the same. What measurements would you take and which tests would you perform to determine whether they actually are the same?

What type of biological macromolecules make up "Gene 1"? Remember there are four types: Proteins, Nucleic Acids, Carbohydrates, and Lipids. Justify your answer. (Hint: You may want to reference chapter 17 in our book).

When you walk across a carpet, you become negatively charged. Why do you receive a shock when you touch a metal door handle?

7. In a classification system, kingdoms contain: (a) the greatest variety of organisms (b) all organisms exactly the same (c) almost identical organisms (d) the fewest types of organisms.

The possibility of down syndrome and other chromosomal disorders increases as the mother's age increases because

Which of these physical factors most shapes the characteristics of a ecosystem? A) soil type B) longitude C) temperature and rainfall D) air circulation patterns