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Questions in biology

[Terjawab] Are composed of dense regular connective tissue that connect one bone to another. A. Tendons B. Ligaments

[Terjawab] 1. Why do plants need a transport system? 2. Which substances need to be moved? 3. How does the transport system work in plants?

[Terjawab] Which of the following terms has a prefix that refers to a number? A. Biconcave B. Macrophage C. Eosinophil D. Enzyme

[Terjawab] Why did Gregor Mendel choose to use purebred plants in his experiments? A. They reproduce sexually. B. They exhibit only one form of a trait. C. They have a variety of traits. D. They reproduce asexually.

[Terjawab] A scientist has four petri dishes of different sizes. Each dish contains a different number of bacteria. | | Population of Bacteria | Area ($mm^2$) | | :----- | :---------------------- | :------------- | | Dish A | 7,200 | 2,826 | | Dish B | 10,000 | 7,850 | | Dish C | 13,650 | 20,096 | | Dish D | 21,350 | 31,400 | Find each population density, to the nearest hundredth. Which statement is true? A. Dish A has the lowest population density. B. Dish C has the greatest population density. C. Dish A and Dish B have approximately the same population density. D. Dish C and Dish D have approximately the same population density.

[Terjawab] What is the main function of the xylem in plants? How does water move from the roots to the leaves? What might happen to a plant if the phloem is damaged?

[Terjawab] Identify the two main types of lymphocytes. Select one: A. B cells and E cells B. T cells and B cells C. A cells and E cells D. A cells and O cells E. C cells and T cells

[Terjawab] Different types of skeletal systems have developed adaptive features suitable to an organism's way of life. With reference to the above statement: (i) State the types of skeletal system found in crabs and humans. (ii) Describe how the skeletal system of crabs and humans is suitable in the environment it lives in. (iii) State one disadvantage each of skeletal system found in crabs and humans.

[Terjawab] Theodor Schwann's Animal Cell Theory (1839): - Investigate Schwann's extension of Schleiden's theory to animals. - Discuss how this unification of plant and animal cell theory advanced biological science.

[Terjawab] Identify which type of natural selection is described in each case below: Results in the evolution of the species: Results in new species: Favors traits at the two extremes: No increase in diversity: One extreme trait is favored: Diversity decreases: Diversity increases: