Which of the following is a density-dependent factor?

fire

water

temperature

hurricane

What type of needs assessment focuses on needs that are expressed in action?

Fats are the main substances that are essential for body growth and repair. Answer a. True b. False

Which of the following weather patterns would be characteristic of a La Niña event? a. high pressure over the western Pacific. b. high ocean surface temperatures. c. warm and dry weather in the southern U. S. d.

Tonya plans to use the lab instrument that is shown below in an experiment

What is the macromolecules that builds both cilia and flagella?

When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria.

There are four children in the Smith family. One child has blue eyes and blonde hair. The other three children have brown eyes and blonde hair. How can you explain the difference and I color?

The number of trophies levels in an ecosystem pyramid A) is limitless B) is limited by the amount of energy that is lost at each trophies level C) is impossible to count because energy is lost at each trophies level D) never exceeds three

Which of the following geometric shapes best represents the change in energy and change in biomass from one trophic level to the next?

A scientsist is testing the effect of light on plants. He takes one plant and sets it on the window sill where it receives light for approximately 10 hours a day. The other plant he places in a dark refridgerator where it receives no light.