following the scientific method which steps would be done before gathering qualitative data

ATI TEAS 7

TEAS Practice Test Science

1. Following the scientific method, which steps would be done before gathering qualitative data?

A. Communicate with a scientific journal
B. Define the problem
C. Develop a hypothesis
D. Categorize data for statistical analysis

Correct answer: B

Rationale: In the scientific method, defining the problem is typically the initial step. Before gathering qualitative data, it is essential to clearly outline and understand the issue or question being addressed. This step helps in guiding the research process and ensures that the data collected are relevant to the problem at hand. Communicating with a scientific journal (Choice A) is not a standard step in the scientific method; it comes after the research is conducted. Developing a hypothesis (Choice C) usually follows defining the problem and precedes data collection. Categorizing data for statistical analysis (Choice D) occurs after data collection, not before gathering qualitative data.

2. What is the name of the sheath of connective tissue that surrounds a skeletal muscle?

A. Epimysium
B. Perimysium
C. Endomysium
D. Myofibril

Correct answer: A

Rationale: The correct answer is Epimysium. The epimysium is the outermost layer of connective tissue that surrounds a skeletal muscle, providing protection and support to the muscle as a whole. Perimysium, which surrounds bundles of muscle fibers known as fascicles, is not the sheath that surrounds the entire muscle. Endomysium surrounds individual muscle fibers, not the entire muscle. Myofibril is a structure within muscle fibers that contains the contractile proteins responsible for muscle contraction, but it is not the sheath of connective tissue surrounding the muscle.

3. What is the periodic table?

A. A table of elements that are arranged in order of increasing atomic number.
B. A table of elements that are arranged in order of increasing atomic mass.
C. A table of elements that are arranged in order of their reactivity.
D. A table of elements that are arranged in order of their color.

Correct answer: A

Rationale: The periodic table is a tabular arrangement of the chemical elements, organized based on their atomic number, electron configurations, and recurring chemical properties. Elements are placed in rows (periods) and columns (groups) with similar properties. The elements are listed in order of increasing atomic number, which is the number of protons in the nucleus of an atom. This arrangement reveals a periodic repetition of chemical properties, forming the basis of the periodic law. Choice B, which suggests arranging elements based on increasing atomic mass, is incorrect because the periodic table is primarily organized by atomic number, not atomic mass. Choices C and D are also incorrect as the periodic table is not based on reactivity or color of elements, but rather on atomic number and properties.

4. What is the process of converting DNA into a protein called?

A. Transcription
B. Translation
C. Replication
D. Mutation

Correct answer: B

Rationale: Translation is the correct answer. It is the process of converting the information in mRNA into a sequence of amino acids to form a protein. Transcription (Choice A) is the process of copying a segment of DNA into RNA. Replication (Choice C) is the process of making an identical copy of DNA. Mutation (Choice D) refers to a change in the DNA sequence that can lead to variations in proteins, but it is not the process of converting DNA into a protein.

5. Which type of muscle tissue has a unique branching network and is found in the heart?

A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Multifidus muscle

Correct answer: B

Rationale: The correct answer is B, Cardiac muscle. Cardiac muscle is the type of muscle tissue that has a unique branching network and is found in the heart. This type of muscle is involuntary and contracts rhythmically to pump blood throughout the body. Skeletal muscle, choice A, is attached to bones and is responsible for voluntary movements. Smooth muscle, choice C, is found in the walls of internal organs and blood vessels, playing a role in involuntary movements. Multifidus muscle, choice D, is a specific muscle in the back that helps with spinal stability, unrelated to the unique branching network found in cardiac muscle.