Which of these is measured during a scientific investigation?

A. Test variable (independent variable)

B. Outcome variable (dependent variable)

C. Control group

D. Hypothesis

Predicting weather patterns

Dopamine is a neurotransmitter involved in the reward pathways in the brain, and its decreased activity has been associated with diseases such as Parkinson's disease and attention-deficit/hyperactivity disorder (ADHD).

The meter is the standard unit for? A) height B) length C) weight D) mass

Proposed answer to a scientific question that A. can be rejected B. is testable C. both a & b

Water vapor makes up 10% of earth's atmosphere. True False

Organisms in which kingdom evolved first?

Will the compound O2 be joined by an ionic or covalent bond

Which description best defines blastocyst? A) a fertilized egg B) an egg released from the ovary C) a mass of specialized cells D) an embryo with a notochord

A radiographer performs an abdomen examination with a mobile digital radiography (DR) system. In order to reduce the likelihood of a repeat exposure, he decides to increase the technical factors slightly more than necessary.

Three types of bones