Which system improves the way your heart works?

a. Circulatory

b. Mental

c. Nervous

d. Respiratory

Earth is part of the solar system. What bodies make up our solar system?

How is erosion different than weathering? What are the different types of water erosion? What factors contribute to the rate of water erosion?

How do organisms interact with each other and their environment?

Which of the following involve electronic charges? A. polar molecules B. ionic bonds C. hydrogen bonds D. all of the above

A student creates a Gram stain on a bacterial sample that has a mix of gram-negative and gram-positive organisms. The student accidentally forgets the decolorizer step. What would the outcome of the Gram stain be? a.

Characteristics that allow neurons to communicate with other body cells include:a) Relaying motor impulses from the cortex to the thalamus. b) Stimulation of "association areas" to analyze information received.

What intensity level of aerobic exercise is considered moderate for older adults?

Anything that is built or created in an organized manner

Adults do not need foods from the dairy group, only growing children and athletes do.

Which conditions lead to a slower rate of weathering? Select two options. 1. porous rocks 2. cold climates 3. hard minerals 4. high temperatures 5. low moisture levels