ATI TEAS Reading Questions: Test Your Skills

ATI TEAS 7

Reading

1. The phrase "disruptions to ecosystems" refers to

A. Minor inconveniences experienced by plant and animal species due to changing weather patterns.
B. Significant changes in ecological relationships and imbalances in populations and food webs.
C. The aesthetic alteration of landscapes due to melting glaciers and deforestation.
D. The economic losses suffered by industries relying on natural resources affected by climate change.

Correct answer: B

Rationale: The phrase suggests profound impacts on ecological balance and species interactions, aligning with B.

2. Biodiversity is important for healthy ecosystems because it:

A. Increases competition for resources
B. Provides stability and resilience to disturbances
C. Slows down nutrient cycling
D. Reduces the number of decomposers

Correct answer: B

Rationale: Rationale: Biodiversity refers to the variety of living organisms in a particular area. A diverse ecosystem is better able to withstand and recover from disturbances such as natural disasters, climate change, or human impacts. This is because different species play unique roles in the ecosystem, and a higher level of biodiversity means there are more species available to fulfill these roles. For example, if one species is negatively affected by a disturbance, other species may be able to compensate for its loss, maintaining the overall functioning of the ecosystem. Therefore, biodiversity provides stability and resilience to disturbances, making ecosystems healthier and more sustainable.

3. What characteristic unites all organisms in the kingdom Animalia?

A. Multicellularity and heterotrophy
B. Unicellular nature
C. Photosynthesis
D. Cell walls made of chitin

Correct answer: A

Rationale: Rationale: A) Multicellularity and heterotrophy: This is the correct answer because all organisms in the kingdom Animalia are multicellular (composed of multiple cells) and exhibit heterotrophy (obtain nutrients by consuming other organisms). B) Unicellular nature: This is incorrect because organisms in the kingdom Animalia are multicellular, not unicellular. C) Photosynthesis: This is incorrect because organisms in the kingdom Animalia do not perform photosynthesis; they are heterotrophs that obtain nutrients by consuming other organisms. D) Cell walls made of chitin: This is incorrect because organisms in the kingdom Animalia do not have cell walls made of chitin. Chitin is a structural polysaccharide found in the cell walls of fungi, not animals.

4. The constituents of an atomic nucleus consist of:

A. Electrons and protons only
B. Protons and neutrons only
C. Electrons, protons, and neutrons
D. None of the above

Correct answer: B

Rationale: The correct answer is B: "Protons and neutrons only." This is because the atomic nucleus is composed of protons, which carry a positive charge, and neutrons, which are neutral. Electrons are found outside the nucleus in electron shells. Protons and neutrons are collectively known as nucleons and are responsible for the mass of the atom. Electrons are much lighter and are involved in chemical reactions and bonding. Therefore, the constituents of an atomic nucleus are specifically protons and neutrons, making option B the correct choice.

5. Vacuoles are large sacs for storage in plant cells. What is their main function in animal cells?

A. Protein synthesis
B. Waste storage and disposal
C. Photosynthesis
D. Cellular respiration

Correct answer: B

Rationale: Vacuoles in plant cells are primarily used for storage of water, nutrients, and waste products. In animal cells, vacuoles are smaller and serve various functions, including waste storage and disposal. Option B, 'Waste storage and disposal,' is the correct answer because vacuoles in animal cells help maintain cellular homeostasis by storing and breaking down waste materials. This process aids in detoxification and maintaining proper cellular function in animal cells, similar to the role of vacuoles in plant cells.