TEAS 7 science practice

TEAS 7 science practice Related

Review TEAS 7 science practice related questions and content

The term that refers to the specific role and position an organism occupies within an ecosystem is called a:

  • A. Habitat
  • B. Niche
  • C. Population
  • D. Biome
Correct Answer: B

Rationale: A) Habitat refers to the specific physical environment where an organism lives, including the biotic and abiotic factors present. While the habitat is important for an organism's survival, it does not encompass the specific role and interactions of the organism within the ecosystem.

B) Niche refers to the specific role and position an organism occupies within an ecosystem, including its interactions with other organisms and its physical environment. This includes the organism's feeding habits, behavior, preferred habitat, and how it obtains resources. The niche of an organism is crucial in determining its impact on the ecosystem and its relationships with other species.

C) Population refers to a group of individuals of the same species living in a specific area and interacting with each other. While populations play a role in ecosystems, they do not specifically describe the role and position of an individual organism within the ecosystem.

D) Biome refers to a large geographical area characterized by its climate, fauna, and flora. It is a broader concept than niche, habitat, or population, focusing on the overall characteristics of the environment rather than the specific role of an individual organism.

You may also like to solve these questions

What is the primary function of the spleen, an organ associated with the lymphatic system?

  • A. Regulating blood sugar levels
  • B. Filtering blood and destroying old red blood cells
  • C. Producing digestive enzymes
  • D. Secreting hormones
Correct Answer: B

Rationale: The spleen is primarily responsible for filtering blood and destroying old or damaged red blood cells. It also aids in storing blood and producing specific types of white blood cells, contributing to maintaining blood quality and immune system function. Choices A, C, and D are incorrect because the spleen is not involved in regulating blood sugar levels, producing digestive enzymes, or secreting hormones. These functions are carried out by other organs in the body.

What is the process by which one element changes into another through radioactive decay known as?

  • A. Transmutation
  • B. Fission
  • C. Fusion
  • D. Oxidation
Correct Answer: A

Rationale: The correct answer is A: Transmutation. Transmutation is the correct term to describe the process by which one element changes into another element through radioactive decay. In transmutation, the atomic structure of the element is altered, leading to a change in the element's identity. Choice B, Fission, refers to the splitting of a heavy nucleus into lighter nuclei. Choice C, Fusion, involves the merging of lighter nuclei to form a heavier nucleus. Choice D, Oxidation, is not related to the process of one element changing into another through radioactive decay.

What is the scientific term for the windpipe, a tube that carries air from the larynx to the bronchi?

  • A. Pharynx
  • B. Trachea
  • C. Epiglottis
  • D. Bronchiole
Correct Answer: B

Rationale: The trachea is the correct scientific term for the windpipe, a tube that carries air from the larynx to the bronchi. It is an essential part of the respiratory system, enabling the passage of air to and from the lungs. The pharynx is the region behind the mouth and nasal cavity, acting as a passageway for air and food. The epiglottis is a cartilage flap that shields the trachea during swallowing to prevent food from entering the airway. Bronchioles are smaller airways that branch off from the bronchi within the lungs, further dividing and distributing air within the lungs.

What is the definition of work in physics?

  • A. Force applied to an object at rest
  • B. Force exerted by an object in motion
  • C. Transfer of energy through motion along a direction
  • D. Measure of an object's potential energy
Correct Answer: C

Rationale: In physics, work is defined as the transfer of energy through motion along a direction. When a force is applied to an object, and the object moves in the direction of the force, work is done on the object. The work done is calculated as the force applied multiplied by the distance the object moves in the direction of the force. Choices A and B do not fully capture the essence of work, as work is about energy transfer through motion, not merely applying force to objects at rest or in motion. Choice D is incorrect as work is not a measure of an object's potential energy; rather, it is the transfer of energy through motion.

Which part of the nervous system is responsible for the "fight-or-flight" response?

  • A. Somatic nervous system
  • B. Parasympathetic nervous system
  • C. Sympathetic nervous system
  • D. Enteric nervous system
Correct Answer: C

Rationale: The sympathetic nervous system is responsible for the 'fight-or-flight' response, triggering the body's automatic response to a perceived threat or danger. This system initiates physiological changes like increased heart rate, dilated pupils, and the release of adrenaline, preparing the body to confront or escape the threat. The somatic nervous system (Choice A) controls voluntary movements, the parasympathetic nervous system (Choice B) is responsible for the 'rest and digest' response to promote relaxation and digestion, and the enteric nervous system (Choice D) regulates the gastrointestinal system. Therefore, they are not associated with the 'fight-or-flight' response.

Copyright © 2025 Nokea. All rights reserved.