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Questions in biology

[Answered] Objective questions on habitat for JSS1 basic science

[Answered] The protozoa that can feed itself by either absorbing food or by photosynthesis is the: A. eugens B. none of the above C. paramecium D. amoeba

[Answered] Which of the following glial cells regulates the interstitial fluid environment around neurons? A. ependymal cells B. oligodendrocytes C. astrocytes D. Schwann cells E. microglial cells

[Answered] Ehlers-Danlos syndrome is a hereditary disorder that affects collagen production. What type of tissue would be most affected? A. Nervous tissue B. Connective tissue C. Muscle tissue D. Epithelial tissue

[Answered] Adding an organism to a food chain does not affect the other members of the food chain, but removing an organism does. Please select the best answer from the choices provided. A. True B. False

[Answered] Describe an environmental factor that could influence natural selection and decrease genetic diversity. Pick a specific example to illustrate your point.

[Answered] A man heterozygous for the rhesus factor marries a woman of the same genotype. Determine the proportion of the children who would marry the rhesus factor. Illustrate your answer with a genetic diagram.

[Answered] The pancreas releases which substance which helps to regulate blood sugar levels?

[Answered] Which of the following industrial processes is a source of volatile organic compound (VOC) air pollutants? A) Fuel combustion B) Waste incineration C) Spraying wood preservative D) Battery manufacturing

[Answered] Write your answers in the space provided. QUESTION 1 Define: (i) Photosynthesis (ii) Respiration QUESTION 2 Rearrange the words given in the box below to come up with the levels of ecological organisation beginning with the smallest category and ending with the largest category. Community, Population, Biosphere, Individual organism, Ecosystem QUESTION 3 Name the two major parts of the environment? QUESTION 4 Explain how sulphur dioxide is formed?