A controlled experiment must A. have a dependent variable. B. have an independent variable. C. be falsifiable. D. be repeatable. E. All of the above.

What is the overarching goal of biotechnology? To genetically manipulate organisms. To increase the personal wealth of scientists/biotechnologists. To mimic biology to meet societal needs. To solve problems and conserve natural resources.

Which of the following can be used to induce abortion nonsurgically? A. Mifepristone B. Dextromethorphan C. Estrogen D. Progesterone

The difference between mitosis in plant and animal cells is A) the formation of a cell plate in plant mitosis B) only plant cells can perform photosynthesis C) the separation of chromosomes only in animal cells D) plant cells end up with half the

How can an increase in biodiversity lead to an increase in ecosystem stability? a. A more biodiverse ecosystem is not subject to change. b. A more biodiverse ecosystem has a higher chance of adapting to species changes. c.

What is the reason fungal diseases have been able to evolve and spread rapidly?

You are testing 3 new herbicides, A, B, and C, to control itch grass and to compare the effectiveness of the herbicides with a currently used herbicide, Round-Up, and the treatment with just water.

Assume B = dominant; b = recessive. What will be the result if Bb mates with BB?

Why should you be suspicious of a small sample?

Where should recyclable waste - such as bottles, cans, paper, and packaging material - be stored?

Four-year-old Bindi loves to go to the nearby park to run around. One of her favorite activities is spinning in circles until she feels dizzy and falls down.