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Nursing Elites

ATI TEAS 7

Chemistry

1. A common indicator used to distinguish between acidic and basic solutions is:

Correct answer: B

Rationale: Phenolphthalein turns pink in basic solutions and remains colorless in acidic solutions

2. What type of lens is thinner at the center than at the edges and causes light rays to diverge?

Correct answer: b

Rationale: A concave lens is thinner at the center than at the edges and diverges light rays.

3. Dendrites are finger-like extensions found on

Correct answer: C

Rationale: Dendrites are the primary sites for receiving signals in a neuron. They are specialized extensions that branch out from the cell body of a neuron to receive incoming information from other neurons. These finger-like projections play a crucial role in transmitting electrical impulses and communication within the nervous system. Muscle cells, connective tissue cells, and epithelial cells do not have dendrites as they are not involved in neuronal communication.

4. How did life most likely arise on Earth?

Correct answer: A

Rationale: Rationale: The most widely accepted scientific theory for the origin of life on Earth is abiogenesis, which suggests that life arose from simple organic molecules in a primordial soup. This theory is supported by experiments such as the Miller-Urey experiment, which demonstrated that the basic building blocks of life could have formed under early Earth conditions. While there are other hypotheses and ongoing research in this field, the primordial soup theory is currently the most plausible explanation for the origin of life on Earth. The other options (B, C, and D) are not supported by scientific evidence or consensus.

5. A population refers to a group of organisms of the same:

Correct answer: A

Rationale: In ecology, a population is a specific group of organisms of the same species living in a particular geographic area at a given time. They share a common gene pool and interact with each other and their environment.

6. The study of the geographical distribution of organisms and the factors that influence it is known as:

Correct answer: C

Rationale: Rationale: Biogeography is the study of the geographical distribution of organisms and the factors that influence their distribution patterns. This field of study examines how and why species are distributed where they are, considering factors such as historical events, ecological interactions, and physical geography. Paleontology (option A) is the study of fossils and the history of life on Earth, focusing on extinct organisms. Taxonomy (option B) is the science of classifying and naming organisms based on their characteristics. Population genetics (option D) is the study of genetic variation and evolutionary processes within populations of organisms. In this context, biogeography is the most appropriate choice as it specifically deals with the distribution of organisms in space and time.

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