Which of the following is a biotic-biotic interaction?

1. A rainstorm washing nutrients from the soil

2. A human shivering because of cold weather

3. A squirrel gathering acorns from a oak tree

4. A snake warming itself on a sunny rock

How does water temperature compare in a kelp forest and coral reef?

Oxygen is produced inside plants and other organisms breathe it in. Explain why it is a problem when fish do not get enough oxygen. Provide some details.

When doing a geographical analysis of a population, it is important to only look at one scale. a. true b. false

How is a well designed investigation developed

Which organism most likely has 10% of the Sun's energy available for its use? A. Shrubs B. Insects C. Hawk D. Snake

Some types of aquatic frogs bury themselves in the mud and spend the winter hibernating at the bottom of the lake and pond. which characteristic of life does this behavior represent

What is the difference between an artery and a vein? Group of answer choices An artery carries blood away from the heart; a vein carries blood to the heart. An artery is responsible for carrying blood; a vein is responsible for gas exchange.

A radiation accident leads to a damaged gene in a fruit fly, which leads to improper function of that gene. If this species reproduces asexually, which offspring will inherit a copy of the damaged gene? a. About half the offspring. b.

1) Transcription is the process by which RNA is assembled, base by base, off a DNA template. True or False 2) Observations are date collected with of the senses or tools such as graduated cylinders, balances, rulers, or pH meters.

Which of the following describes how homologous structures provide evidence to support hat life changes over time A. some animals exhibit similar stages of embryonic development B.