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Questions in biology

[Answered] Which is the correct chemical equation for photosynthesis? $6 CO _2+6 H _2 O$ (R) $C _6 H _{12} O _6+6 O _2$ $C _6 H _{12} O _6+6 O _2$ (R) $6 CO _2+6 H _2 O$ $3 CO _2+3 H _2 O +3 O _2 C _6 H _{12} O _6$ $6 O _2+6 H _2 O$ (R) $C _6 H _{12} O _6+6 CO _2$

[Answered] Write true or false: 1. Oesophagus starts the digestion of food. 2. Small intestine has finger-like projections. 3. Nutrients make us healthy. 4. Nutrients are absorbed in the large intestine.

[Answered] Discuss the ecological importance of fungi in nutrient cycling, focusing on their decomposition abilities. Use adequate illustrations (diagrams) to your discussion.

[Answered] QUESTION 9 What will happen to a population in a habitat if it exceeds its carrying capacity? A. It will increase due to limited resources. B. It will decrease due to limited resources. C. It will increase due to unlimited resources. D. It will decrease due to unlimited resources. QUESTION 10 When does primary succession occur? A. It occurs when organisms start to live in a barren environment for the first time. B. It occurs when plants begin to grow over lichens and attract other animals to the area to feed. C. It takes place in areas where there is soil and living things have already made that place their home. D. It occurs when a shrub community is replaced by small trees which may eventually develop into a forest.

[Answered] Which activities are ways to reduce the negative impacts humans have on Earth's resources? Select two options. A. eroding river banks B. moving to urban settings C. monitoring air quality D. burning fossil fuels E. building marine refuges

[Answered] 1. A sample of mineral is being studied in the laboratory. Which of its property is readily manifested by sheer observation? A. Color B. Hardness C. Luster D. Streak 2. A certain mineral is white in color. After it is bombarded with ultraviolet light, its color changes into light red. What property of mineral is exemplified in the scenario? A. Color B. Fluorescence C. Luster D. Streak 3. What property of mineral enables it to continue glowing even after a source of ultraviolet light has been turned off from it? A. Color B. Fluorescence C. Luster D. Phosphorescence 4. What mineral has the capacity to scratch all other minerals? A. Diamond B. Fluorite C. Quartz D. Topaz 5. Which type of luster does a DIAMOND exhibit? A. Brilliant B. Glassy C. Pearly D. Waxy 6. Which of the following is NOT a property of a mineral? A. Cleavage B. Fluorescence C. Luster D. Texture 7. Which of the following reason why color is NOT often a useful identification property? A. Some minerals are colorless. B. Some minerals are single elements. C. Different minerals can be different colors. D. The same mineral can be different colors. 8. Which of the following is TRUE about all minerals? A. Minerals are inorganic solids. B. Minerals have a glassy luster. C. Minerals fracture the same way. D. Minerals possess varieties of states. 9. Which of the following minerals belong to the carbonate group? A. Apatite B. Calcite C. Gypsum D. Halite 10. How would you describe the luster of galena, pyrite, silver, and gold? A. Dull B. Glassy C. Metallic D. Nonmetallic

[Answered] 5.2. Tabulate the difference between Lamarck's theory of evolution and Darwin's theory of evolution. 5.3. Explain whose idea of evolution is more acceptable today.

[Answered] What is the function of the heart? A. To carry blood to organs. B. To control breathing rates. C. To pump blood around the body. D. To build bones and joints.

[Answered] For each offspring genotype in the Punnett square you just completed, determine the phenotype. In other words, what is the predicted fur color and eye color of the offspring? Using your Punnett square from the last step, fill in the predicted fraction for each phenotype in the data table below. | | Black Fur and Black Eyes | Black Fur and Red Eyes | White Fur and Black Eyes | White Fur and Red Eyes | |---|---|---|---|---| | Predicted Fraction | | | | |

[Answered] QUESTION 15 Which equation describes the general process of photosynthesis? A. C6H12O6+6H2O + light energy → 6CO2 + 602 B. C6H12O6 602 → 6CO2+6H2O + energy C. 602+6CO2 + light energy → C6H12O6+6C02 D. 6CO2 + 6H2O + light energy → C6H12O6 + 6CO₂ QUESTION 16 What percentage of the Earth's atmosphere is nitrogen? A. 87% B. 70% C. 21% D. 78% QUESTION 17 The group of bacteria that uses ammonia from decaying organisms to produce nitrates is called bacteria. A. nitrifying B. decomposers C. denitrifying D. nitrogen fixing QUESTION 18 Which of this refers to the tiny particles of solids and liquids released into the air when fuels and other materials are not burned properly? A. Smog B. Soot C. Smoke D. Particulates QUESTION 19 The overall rise in the average temperature of the atmosphere is known as A. drought. B. deforestation. C. global warming. D. greenhouse effect.