Quiz For Stone Bio 1010 Exam 1

1.

What is science, as described in class?(may have multiple answers)

A.

A body of knowledge.
B.

A career that pays the bills.
C.

A subject that students must take to graduate.
D.

A method or process.

Correct Answer(s)
A. A body of knowledge.
D. A method or process.

Explanation
Science is described as a body of knowledge because it encompasses a wide range of information and theories that have been systematically gathered and organized over time. It is also described as a method or process because it involves the systematic observation, experimentation, and analysis of natural phenomena to generate new knowledge and understanding. Both aspects are essential to the practice and advancement of science.

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2.

What are the steps in the scientific method?

Correct Answer(s)
observe a phenomenon, question, hypothesize, experiment, draw conclusions, communicate results, continue research
observe, question, hypothesize, test, conclude, communicate, continue research

Explanation
The correct answer is "observe a phenomenon, question, hypothesize, experiment, draw conclusions, communicate results, continue research, observe, question, hypothesize, test, conclude, communicate, continue research". This answer includes all the necessary steps in the scientific method, starting with observing a phenomenon, questioning it, formulating a hypothesis, conducting experiments to test the hypothesis, drawing conclusions based on the results, communicating the findings, and continuing the research process by observing, questioning, and testing further. This comprehensive approach ensures a systematic and rigorous scientific investigation.

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3.

What are things all experiments must have?(may have multiple answers)

A.

Be designed to test a hypothesis or answer a question
B.

Test and control samples/groups
C.

Be repeatable by others
D.

Be done by a academic scientist

Correct Answer(s)
A. Be designed to test a hypothesis or answer a question
B. Test and control samples/groups
C. Be repeatable by others

Explanation
All experiments must have certain characteristics in order to be considered valid. They should be designed to test a hypothesis or answer a question, as this is the main purpose of conducting an experiment. Additionally, experiments should include test and control samples/groups to compare and analyze the results. This helps to eliminate confounding variables and ensure the reliability of the findings. Lastly, experiments should be repeatable by others, meaning that the procedures and methods should be clearly described and detailed enough for others to replicate the experiment and obtain similar results. These criteria are essential for the scientific rigor and credibility of any experiment.

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4.

What are the two characteristics of well-done science?

Correct Answer(s)
validity and reliability

Explanation
Well-done science refers to research that is conducted accurately and with precision. Validity refers to the extent to which a study measures what it intends to measure, ensuring that the results are accurate and meaningful. Reliability, on the other hand, refers to the consistency and stability of the results obtained from a study, indicating that the findings can be replicated and trusted. These two characteristics are essential in ensuring that scientific research is credible and trustworthy.

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5.

What is the difference between a hypothesis and a theory? [Please describe both]

6.

Where did the H1N1 virus originate from?

A.

Rainforests
B.

Europe
C.

Mexico
D.

America

Correct Answer
C. Mexico

Explanation
The H1N1 virus originated from Mexico. This is because the H1N1 virus, also known as the swine flu, was first identified in Mexico in 2009. The virus quickly spread to other parts of the world, causing a global pandemic.

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7.

Choose the correct order, smallest to largest:

A.

Atom, molecule, cell, tissue, organ, organelle, organism, population, community, biosphere
B.

Atom, molecule, organelle, cell, tissue, organ, organism, community, population, biosphere
C.

Biosphere, organelle, cell, tissue, atom, organism, organ, molecule, population, community
D.

Atom, organelle, molecule, tissue, cell, organ, organism, population, community, biosphere

Correct Answer
B. Atom, molecule, organelle, cell, tissue, organ, organism, community, population, biospHere

Explanation
The correct order, from smallest to largest, starts with atoms, which are the basic building blocks of matter. Molecules are formed when atoms bond together. Organelles are specialized structures within cells that perform specific functions. Cells are the basic unit of life. Tissues are made up of a group of similar cells that work together to perform a specific function. Organs are made up of different tissues that work together to perform a specific function. Organisms are individual living beings. Communities are groups of organisms of different species that interact with each other in a particular area. Populations are groups of organisms of the same species living in the same area. The biosphere is the global sum of all ecosystems on Earth.

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8.

The smallest unit of life is ...

Correct Answer
cell

Explanation
A cell is the smallest unit of life as it is the basic structural and functional unit of all living organisms. Cells are capable of carrying out vital processes such as metabolism, growth, reproduction, and response to stimuli. They are enclosed by a cell membrane and contain genetic material, either in the form of DNA or RNA. Cells can exist as single-celled organisms or as part of multicellular organisms, where they work together to perform specific functions.

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9.

The smallest unit of an element is ...

Correct Answer
atom

Explanation
The smallest unit of an element is an atom. Atoms are the basic building blocks of matter and cannot be broken down further without losing their chemical properties. Each atom consists of a nucleus containing protons and neutrons, surrounded by electrons in energy levels. Different elements are distinguished by the number of protons in their nucleus. Overall, atoms are the fundamental particles that make up all matter in the universe.

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10.

What element is central to life on earth?

A.

Potassium
B.

Iron
C.

Carbon
D.

Helium

Correct Answer
C. Carbon

Explanation
Carbon is the correct answer because it is the element that is central to life on Earth. Carbon is the building block of organic molecules and is found in all living organisms. It is a key component of carbohydrates, proteins, lipids, and nucleic acids, which are essential for life processes such as metabolism, growth, and reproduction. Carbon's ability to form stable covalent bonds with other elements allows for the diversity and complexity of organic molecules, making it crucial for life as we know it.

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11.

What stops free radicals?

Correct Answer
antioxidants

Explanation
Antioxidants are substances that can prevent or slow damage to cells caused by free radicals. Free radicals are unstable molecules that can cause oxidative stress and damage to cells, leading to various health problems. Antioxidants neutralize free radicals by donating an electron, thus stabilizing them and preventing them from causing harm. Therefore, antioxidants act as a defense mechanism against free radicals and help protect the body from oxidative damage.

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