Semester Exam

What is the term used to describe the genetic makeup of an organism?

• Phenotype

• Genotype

• Allele

• Trait

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DOK Level 1: Recall

Which of the following is NOT a component of an ecosystem?

• Plants

• Animals

• Climate

• Vaccine

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DOK Level 1: Recall

What is the primary mineral found in bones that makes them strong?

• Calcium

• Iron

• Potassium

• Magnesium

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DOK Level 1: Recall

Which part of the heart is responsible for pumping oxygenated blood to the body?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

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DOK Level 1: Recall

What is the role of ATP in muscle contraction?

• It provides the energy for muscle relaxation.

• It signals the muscle to contract.

• It provides the energy for muscle contraction.

• It transports calcium ions.

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DOK Level 1: Recall

In Mendelian genetics, what ratio would you expect to find in the phenotype of the offspring if you cross two heterozygous individuals for a trait (Tt x Tt)?

• 1:1

• 3:1

• 9:3:3:1

• 2:1:1

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DOK Level 2: Skill/Concept

Which type of interaction in an ecosystem involves one organism benefiting while the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Competition

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DOK Level 2: Skill/Concept

Identify the bone that is NOT part of the human axial skeleton.

• Skull

• Ribcage

• Femur

• Vertebrae

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DOK Level 2: Skill/Concept

Which phase of the cardiac cycle involves the heart chambers filling with blood?

• Systole

• Diastole

• Atrial contraction

• Ventricular contraction

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DOK Level 2: Skill/Concept

Explain how a neuromuscular junction functions during muscle contraction.

• It transmits electrical signals directly to muscle fibers.

• It releases calcium ions that initiate contraction.

• It serves as a point where nerve impulses trigger the release of a neurotransmitter.

• It provides structural support to muscle fibers.

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DOK Level 2: Skill/Concept