What is a hypothetical explanation for an occurrence that is based on prior knowledge called?

A. Independent variable

B. Dependent variable

C. Trial

D. Hypothesis

Answer Explanation:

A hypothesis is the use of prior knowledge in order to provide a hypothetical explanation for why something may or may not occur. A hypothesis can be proved wrong or right based on the results of the experiment and repeated trials.

Therefore, the Correct Answer is D.

Q #1: Which of these body parts does NOT produce melanin?

A. Hair

B. Nails

C. Skin

D. Iris

Answer Explanation

While melanin can be found in nails, it is not produced there. Melanin is the pigment that provides color to skin, hair, and eyes. Although the specific coloring of one's skin, hair, and eyes are genetically determined. environmental factors such as sun exposure can increase melanin production in the skin to help protect it from damage.
Q #2: Which of the following anatomical structures is directly involved in the production of hormones?

A. Pituitary ,Pancreas

B. Penis,Pons

C. Pancreas ,Penis

D. Prostate, Pancreas

Answer Explanation

The pituitary and the pancreas are both structures of the endocrine system that produce hormones involved in body regulation, growth reaand development, sexual functioning, and other processes. The penis Is a structure of the reproductive system that responds to hormones, but it does not produce them. The prostate plays a role in converting testosterone (produced in the testicles) into dihydrotestosterone, but does not actively produce hormones. The pons is located in the brain stem and relays nerve signals that coordinate messages between the brain and the body. The pericardium is a structural component of the cardiovascular system.
Q #3: How many different types of nucleotides are there in DNA?

A. One

B. Two

C. Four

D. Eight

Answer Explanation

There are four different nucleotides in DNA. Nucleotides are monomers of nucleic acids, composed of five- carbon sugars, a phosphate group, and a nitrogenous base. Nucleotides make up both DNA and RNA. They are essential for the recording of an organism's genetic information, which guides the actions of the various cells of the body.

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What is a hypothetical explanation for an occurrence that is based on prior knowledge called?

More Questions on TEAS 7 Science

Q #1: Which of these body parts does NOT produce melanin?

Answer Explanation

Q #2: Which of the following anatomical structures is directly involved in the production of hormones?

Answer Explanation

Q #3: How many different types of nucleotides are there in DNA?

Answer Explanation

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