13 Jan Award: 2 out of 2.00 points
1.
Award: 2 out of 2.00 points
The three major domains of life are
archaea, bacteria, and eukaryotes.
plants, animals, and protists.
eukaryotes, prokaryotes, and animals.
eukaryotes, prokaryotes, and fungi.
bacteria, fungi, and eukaryotes.
2.
Award: 2 out of 2.00 points
Organic molecules
always contain hydrogen.
are always food molecules.
are found only in organisms, hence their name.
always contain carbon.
always contain carbon and hydrogen.
3.
Award: 2 out of 2.00 points
Which of the following structures are NOT found in the cytoplasm?
lysosome
chromosomes
nucleus
mitochondria
chloroplast
4.
Award: 2 out of 2.00 points
The nucleolus
contains DNA and is found in the cytoplasm.
contains RNA and is found in the nucleus.
contains DNA and is found in the nucleus.
contains ribosome subunits and is found in the cytoplasm.
contains RNA and is found in the cytoplasm.
5.
Award: 2 out of 2.00 points
Some students consume large amounts of coffee and so-called energy drinks to help them stay alert when studying. You notice that many who engage in this practice seem to do poorly on exams. Suppose you want to investigate the relationship between caffeine consumption and exam performance. Which of the following statements would be an appropriate hypothesis?
Students who consume large amounts of caffeine while studying will have lower exam scores than those who consume less caffeine.
Many students consume large amounts of caffeine while studying.
Caffeine increases alertness but also increases anxiety.
One should avoid consuming too much caffeine while studying.
Too much caffeine is harmful to your health.
6.
Award: 2 out of 2.00 points
When a substance moves from an area of low concentration to an area of high concentration while using energy, the process is termed
pinocytosis.
facilitated diffusion.
active transport.
osmosis.
diffusion.
7.
Award: 2 out of 2.00 points
Which of the following is a prokaryotic cell?
plant cell
bacterium
liver cell
muscle cell
paramecium
8.
Award: 2 out of 2.00 points
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