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Questions in biology

📝 Answered - Explain why the size of your muscles is partly an acquired trait and partly dependent on DNA.

📝 Answered - Which of the following is not a function or purpose of the cell membrane? Select one: A. Keep toxins out of a cell B. Provide physical support and protection for the cell C. Maintain equilibrium D. Act as a barrier between two different chemical environments

📝 Answered - A botanist wants to observe the change in the rate of growth of plants compared to the change in the amount of rainfall on randomly selected days. Which one of the following tools would be the best choice for representing this data? A. Histogram B. Line and scatter plot C. Bar chart

📝 Answered - We gain energy from eating plants. Plants can't create their energy; they must first get it from the Sun. This statement is _____ according to the _____ law of thermodynamics. A. true; first B. true; second C. false; first D. false; second

📝 Answered - Which cell type usually has a large vacuole?

📝 Answered - By controlling what enters and leaves a cell, the cell membrane: A. aids in maintaining homeostasis within the cell. B. aids in maintaining homeostasis outside of the cell. C. aids in maintaining osmosis within the cell. D. aids in maintaining osmosis outside of the cell.

📝 Answered - Ellen is jogging. As her body's metabolism becomes more active, carbon dioxide levels increase, resulting in a decrease in pH. Fortunately, her ___________ in the blood protect against large changes in pH. Select one: a. water b. DNA c. buffers d. lipids

📝 Answered - In the human body, fibrinogen is necessary for sealing cuts and stopping the loss of blood. Since fibrinogen is made of chains of amino acids, it is an example of which type of organic molecule? A. Carbohydrate B. Protein C. Fatty acid D. Nucleic acid

📝 Answered - The theory of continental drift suggests: A. The continents have moved in the past. B. The continents are slowly moving now. C. The continents have moved in the past and are still moving. D. The continents moved in the past but are not moving now.

📝 Answered - Which of the following traits is acquired? 1. The ability of some gorillas to use sign language 2. The number of petals that grow in a plant's flower 3. The wing shape of a wild bird 4. A cheetah's ability to run faster than any other land animal