Answer the following question given this paragraph: CHAPTER SUMMARY 5.1 Overview of Photosynthesis The process of photosynthesis transformed life on earth. By harnessing energy from the sun, photosynthesis allowed living things to access enormous amounts of energy. Because of photosynthesis, living things gained access to sufficient energy, allowing them to evolve new structures and achieve the biodiversity that is evident today. Only certain organisms, called autotrophs, can perform photosynthesis; they require the presence of chlorophyll, a specialized pigment that can absorb light and convert light energy into chemical energy. Photosynthesis uses carbon dioxide and water to assemble carbohydrate molecules (usually glucose) and releases oxygen into the air. Eukaryotic autotrophs, such as plants and algae, have organelles called chloroplasts in which photosynthesis takes place. Q: What are the only organisms that can perform photosynthesis? Choices: - sponges - monocots - heterotrophs - autotrophs A:
autotrophs
(Question)
Answer the following question given this paragraph: Q: Part of the scientific process, these are statistical probabilities rather than certainties? Choices: - Hypothesis - assumptions - results - predictions A:
(Answer)
predictions
Ques: Answer the following question given this paragraph: An error is a boundary on the precision and accuracy of the result of a measurement. Some errors are caused by unpredictable changes in the measuring devices (such as balances, rulers, or calipers), but other errors can be caused by reading a measuring device incorrectly or by using broken or malfunctioning equipment. Such errors can have an impact on the reliability of the experiment's results; they affect the accuracy of measurements. For example, you use a balance to obtain the mass of a 100 gram block. Three measurements that you get are: 93.1 g, 92.0 g, and 91.8 g. The measurements are precise, as they are close together, but they are not accurate. Q: In statistics a boundary on the precision and accuracy is known as what? Choices: - instance - median - frequency - error A:
Ans: error
(Q).
Answer the following question given this paragraph: If a molecule can pass freely through a cell membrane, it will cross the membrane by diffusion ( Figure below ). The inside of the plasma membrane is hydrophobic, so certain molecules cannot easily pass through the membrane. Recall the semipermeable nature of the lipid bilayer. Molecules that cannot easily pass through the bilayer include ions and small hydrophilic molecules, such as glucose, and macromolecules, including proteins and RNA. Examples of molecules that can easily diffuse across the plasma membrane include carbon dioxide and oxygen gas. These molecules diffuse freely in and out of the cell, along their concentration gradient. Though water is a polar molecule, it can also diffuse through the plasma membrane. The diffusion of water through the cell membrane is of such importance to the cell that it is given a special name, osmosis . Q: What is the special name given to the diffusion of water through the cell membrane? Choices: - hemostasis - passive transport - electrolysis - osmosis A:
(A).
osmosis
Ques:Answer the following question given this paragraph: Q: Muscle contraction requires repeated cycles of binding and what? Choices: - twisting - push - lunging - release A:

Ans:release
Question: Answer the following question given this paragraph: Q: What type of behavioral rhythms are linked to the yearly cycle of seasons? Choices: - annual - biannual - monthly - circannual A:
Answer:
circannual