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Questions in biology

[Terjawab] Imagine that a single cell below goes through four cell divisions. How many cells are produced? To find out, draw the parent cell and cells present after each division. Then write the number of cells in the space below each drawing. (Hint: the number of cells doubles with each division.)

[Terjawab] Which statement describes a controlled experiment? A. It includes more than one control group. B. It includes a control group and an experimental group. C. It includes only an experimental group. D. It includes only a control group.

[Terjawab] Read the passage. Flooding occurring along the shoreline of a river is very eroding to the surrounding land. This erosion ends up in the river, causing the river to run muddy. The muddy water decreases the amount of sunlight reaching the aquatic plants, which require sunlight to survive. These aquatic plants provide both a habitat and a food source for fish and other animals that live in the river. Which explains how flooding impacts fish in a river? A. Muddy waters have no oxygen and directly kill the fish. B. Muddy waters increase habitats for fish to thrive and increase population. C. Muddy waters will kill aquatic plants, which provide food for fish. D. Muddy waters hide the fish from fishermen so that won't be caught.

[Terjawab] Stick insects, also called walking sticks, are typically found in tropical and subtropical forests and grasslands. The insects are able to camouflage themselves by living among twigs in their environment. What is this an example of? A. adaptation B. biodiversity

[Terjawab] Which kind of evidence studies mineralized bone, footprints, or organisms trapped in amber to determine ancestry? A. fossils B. analogous structures C. homologous structures D. molecular clock

[Terjawab] Which of the following correctly describes the property of water that helps protect aquatic organisms when winter temperatures plunge well below freezing for several months? A. Water's density increases and then decreases as it changes from a liquid to a solid. B. Water's density decreases as it changes from a liquid to a solid. C. Water's density increases as it changes from a liquid to a solid. D. Water's density remains constant as it changes from a liquid to a solid.

[Terjawab] What is most likely to result immediately after a rainforest in Brazil is clear-cut? A. secondary succession B. primary succession C. a climax community D. increased biodiversity

[Terjawab] The equation shows cellular respiration. During cellular respiration, glucose combines with oxygen to form carbon dioxide, water, and ATP. [tex]C_6 H_{12} O_6+6 O_2 \rightarrow 6 CO_2+6 H_2 O+\text { ATP }[/tex] What happens to the energy in the bonds in glucose? A. The energy is transferred to oxygen. B. The energy is transferred to carbon dioxide. C. The energy is transferred to water. D. The energy is transferred to ATP.

[Terjawab] What is the region of a mature bone between the diaphysis and epiphysis called? A. metaphysis B. articular cartilage C. medullary cavity D. periosteum

[Terjawab] How are scientific questions answered? A. By predicting a solution to the question B. By asking other scientists what they think C. By reading books about the question D. By observing and measuring the physical world