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Questions in biology

[Free] Which of the following contributes the LEAST to the problem of antibiotic resistance? A. taking antibiotics for all infections, including viral infections B. stopping taking the antibiotics as soon as you feel better, thereby decreasing the exposure of the bacteria to the antibiotics C. using high doses of antibiotics in animal feed, so that we are not exposed to the bacteria D. taking the entire course of antibiotics as prescribed by the doctor

[Free] Why is replication (when someone tries your experiment for themselves) important in science experiments? A. To see if results are reliable and accurate. B. To finish the experiment faster. C. To make the experiment look more exciting. D. To make sure the experiment is fun.

[Free] Fill in the blank: The original source of energy for nearly all life on Earth is _______ energy.

[Free] Which statement about carbohydrates is true? A. Carbohydrates transmit genetic information. B. Carbohydrates provide energy for living things. C. Carbohydrates regulate cell processes. D. Carbohydrates fight disease.

[Free] Animal 1 Homeostasis and Adaptations 2. What happens to the amount of oxygen available to athletes at high altitudes? (Use the section above: Connection to Earth Science) 3. What does a person's body automatically do to restore homeostasis when they are at high altitude? 4. List the two main benefits of adaptations. 5. Think of animals that live locally around us. List two animals and two specific adaptations for each animal. Animal 1 * Adaptation 1 * Adaptation 2 Animal 2 * Adaptation 1 * Adaptation 2

[Free] Which statement is true? A. Plants and animals perform cellular respiration and photosynthesis. B. Plants perform cellular respiration and photosynthesis, but animals only perform cellular respiration. C. Animals only perform cellular respiration, and plants only perform photosynthesis. D. Animals perform cellular respiration and photosynthesis, but plants only perform photosynthesis.

[Free] Among apples, cherries, oranges, and watermelons, a serving of which fruit would raise the level of sugar in blood by the least amount?

[Free] Practice: Geochemical Cycles. 1. Read each statement and place a check mark in the column of the cycle(s) it applies to: | Statement | Carbon | Water | Nitrogen | | :-------------------------------------------------------------------------- | :----- | :---- | :------- | | Matter cycles through living and nonliving components of ecosystem. | | | | | Cannot happen without decomposers like bacteria. | | | | | Has stages that occur underground. | | | | | Matter takes on different chemical forms as it cycles. | | | | | Entire cycle is driven by the sun. | | | | | A cycle that didn't really exist before the industrial revolution. | | | | | Introduced to the atmosphere by bacteria or even lightning. | | | | 2. Match the name of the stage to the correct description. Not all words will be used. A. When water returns to the atmosphere via plants. B. A cycle that didn't really exist before the industrial revolution. C. Introduced to the atmosphere by bacteria or even lightning. Options: Aquifers, Infiltration, Urinelfers, Evaporation, Transpiration, Condensation, Precipitation

[Free] 4 - Microwave Miracle Patrick believes that fish that eat food exposed to microwaves will become smarter and would be able to swim through a maze faster. He decides to perform an experiment by placing fish food in a microwave for 20 seconds. He has the fish swim through a maze and records the time it takes for each one to make it to the end. He feeds the special food to 10 fish and gives regular food to 10 others. After 1 week, he has the fish swim through the maze again and records the times for each. What was Patrick's hypothesis? Which fish are in the control group? What is the independent variable? What is the dependent variable? Look at the results in the charts. What should Patrick's conclusion be? Special Food Group (Time in minutes/seconds) Fish Before After 1 1:06 1:00 2 1:54 1:20 3 2:04 1:57 4 2:15 2:20 5 1:27 1:20 6 1:45 1:40 7 1:00 1:15 8 1:28 1:26 9 1:09 1:00 10 2:00 1:43 Regular Food Group (Time in minutes/seconds) Fish Before After 1 1:09 1:08 2 1:45 1:30 3 2:00 2:05 4 1:30 1:23 5 1:28 1:24 6 2:09 2:00 7 1:25 1:19 8 1:00 1:15 9 2:04 1:57 10 1:34 1:30

[Free] Choose a subject: Environmental Science Unlike lakes, the ocean is separated into zones. Please select the best answer from the choices provided. T F