There's 44 questions on this test, but I really need help with these few.
1. In a magazine advertisement, a manufacturer claims its laundry ball, which contains ceramic pellets, gets clothes clean by changing the pH of the water. The ad claims the product reduces wear on their clothing, contaminants in the environment, and the cost of doing laundry. The ad provides a chart showing the cost savings to a family of four over a year. What should the advertisement include to give a consumer more confidence in this product's claims?
A. Information about how the product benefits the environment
B. Information about product testing in a study that includes a control group
C. Pictures comparing loads of laundry cleaned with and without the product
D. A lack of testimony from users who have used the product for several months
2. Which of the following best describes how the first large organic molecules on the early Earth may have been formed?
A. Enzymes catalyzed reactions between smaller organic molecules to form larger ones.
B. Heat energy became trapped in the atmosphere by greenhouse gases and was used as an energy source in the building of macromolecules.
C. Lightning provided the energy needed for gases to react with each other and form amino acids.
D. Tidal flow and ocean currents helped mix molecules together so that they could react to build larger molecules.
3. In 1838, Matthias Schleiden published his observation that plant tissues are composed of cells. A year later, Theodor Schwann published evidence that animal tissues were composed of cells. If Schwann did not publish his findings, then which question regarding cell theory would have remained unanswered?
A. Are plants and animals created from inorganic matter?
B. Are plants and animals fundamentally different?
C. Do plants and animals differ in how they obtain energy for life processes?
D. Do plants and animals pass on their DNA during reproduction?
4. Which of the following describes an organelle that both prokaryotic and eukaryotic cells have in common?
A. This organelle contains the cell's DNA and is where DNA replication occurs.
B. This organelle is composed of protein and RNA and is used to make proteins for the cell.
C. This organelle is composed of a stack of membrane sacs where proteins are modified and stored.
D. This organelle extracts energy stored in glucose molecules to power cell functions.
Please help, these are the only ones I don't understand, and this test is a really big grade for me.
1. In a magazine advertisement, a manufacturer claims its laundry ball, which contains ceramic pellets, gets clothes clean by changing the pH of the water. The ad claims the product reduces wear on their clothing, contaminants in the environment, and the cost of doing laundry. The ad provides a chart showing the cost savings to a family of four over a year. What should the advertisement include to give a consumer more confidence in this product's claims?
A. Information about how the product benefits the environment
B. Information about product testing in a study that includes a control group
C. Pictures comparing loads of laundry cleaned with and without the product
D. A lack of testimony from users who have used the product for several months
2. Which of the following best describes how the first large organic molecules on the early Earth may have been formed?
A. Enzymes catalyzed reactions between smaller organic molecules to form larger ones.
B. Heat energy became trapped in the atmosphere by greenhouse gases and was used as an energy source in the building of macromolecules.
C. Lightning provided the energy needed for gases to react with each other and form amino acids.
D. Tidal flow and ocean currents helped mix molecules together so that they could react to build larger molecules.
3. In 1838, Matthias Schleiden published his observation that plant tissues are composed of cells. A year later, Theodor Schwann published evidence that animal tissues were composed of cells. If Schwann did not publish his findings, then which question regarding cell theory would have remained unanswered?
A. Are plants and animals created from inorganic matter?
B. Are plants and animals fundamentally different?
C. Do plants and animals differ in how they obtain energy for life processes?
D. Do plants and animals pass on their DNA during reproduction?
4. Which of the following describes an organelle that both prokaryotic and eukaryotic cells have in common?
A. This organelle contains the cell's DNA and is where DNA replication occurs.
B. This organelle is composed of protein and RNA and is used to make proteins for the cell.
C. This organelle is composed of a stack of membrane sacs where proteins are modified and stored.
D. This organelle extracts energy stored in glucose molecules to power cell functions.
Please help, these are the only ones I don't understand, and this test is a really big grade for me.
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1 B
2 C
3 B
4 B
2 C
3 B
4 B