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Questions in biology

[Answered] (c) (i) State four physical properties of water. (ii) State three methods of improving upon the quality of water for domestic use. [5 marks] (d) (i) Name two organisms involved in the nitrogen cycle. (ii) State three ways in which the nitrogen cycle is important to living organisms. [5 marks]

[Answered] In this assignment forum, you will consider how nature and nurture contribute to adolescent brain development. Instructions: Describe two major changes in brain anatomical structure and/or activity that characterize the adolescent brain. Discuss how these changes might affect adolescent behavior. Include a discussion of how experience might affect the developing brain. This is often referred to as "developmental plasticity." Discuss sex differences (differences between males and females) in the adolescent brain. Do you believe these differences are correlated with differences in behavior? Conversely, do you think that nurture is solely responsible for behavioral differences between males and females? Explain your answer.

[Answered] Which best matches a type of genetic material with its description? A. Nucleotides form a helical structure that is called a gene. B. Genes combine to form structures called nucleotides. C. Chromosomes create genes. D. DNA is located in the nucleus.

[Answered] Describe how water use influences life on Earth.

[Answered] For each glucose that enters glycolysis, how many [tex]NADH + H ^{+}[/tex] are produced by the citric acid cycle? A. 3 to 6 B. 0 C. 6 D. 3 E. 2

[Answered] Where is the carbon taken in by plants during photosynthesis stored? a. the ground b. plant structures c. the air d. all of the above

[Answered] How to grow an avocado inside. Response A: How to Grow an avocado: 1. Wash and dry an avocado pit 2. Fill a mason jar with water 3. Press three toothpicks around the pit 4. Place the jar in a warm, sunny spot 5. Replenish water as needed 6. Plant in soil Response B: The avocado, Persea americana, bears delicious fruits packed with healthy fats. In the right conditions, trees can reach heights of up to 20m, but they're unlikely to grow so well in the United States. Which response is the most helpful? A. Response A B. Response B C. Both responses are equally helpful

[Answered] Which of the following is NOT a factor in efficiency? A. metabolism B. type of movement C. muscle efficiency D. digestion

[Answered] Imagine the water content of the blood is low when you take in much salt with your food. What would happen in your kidney to regulate this situation? Osmoreceptors stimulate the A. adrenal gland to release adrenalin that increases conversion of glycogen to glucose in the blood. B. hypothalamus that releases aldosterone and sodium ions to reabsorb back into the blood. C. ADH to release cortisone that promotes resistance to water stress. D. pituitary gland to release ADH to reabsorb water back into the blood. Several current studies point out that very large quantities of greenhouse gases have been added into Earth's atmosphere due to human activities. What would be the most likely responsible gas and its major sources, respectively? A. Methane - aluminum smelting and semiconductor manufacturing B. Carbon dioxide - fossil fuel combustion, deforestation, oil and gas usage C. Perfluorocarbons - electric transmission, magnesium and aluminum production

[Answered] Which of the following best describes the process of facilitated diffusion?