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Questions in biology

[Terjawab] This part of the brain is said to be linked to ADHD/ADD. A. corpus callosum B. thalamus C. cerebellum D. reticular formation

[Terjawab] A vaccine containing an inactive pathogen is injected into a person. The vaccine causes the body to react and create _________. What word completes this sentence?

[Terjawab] What term is used to describe an organism's ability to pass on genetic traits to offspring? A. Reproductive success B. Group behavior C. Structural adaptation D. Population growth

[Terjawab] Select all that apply. Which statements characterize endosteum? ☐ It is active during bone repair ☐ It covers the diaphysis of a bone ☐ It lines medullary cavities ☐ It contains osteoblasts

[Terjawab] What term describes the brain's ability to adapt and reorganize? A. Neuroplasticity B. Neurogenesis C. Synaptic pruning D. Lateralization

[Terjawab] Which of the following statements about enzymes is TRUE? A. An enzyme is used up after a reaction and cannot be used again. B. Enzymes bind to specific substrates at an active site which undergoes "induced fit." C. Enzymes work by increasing the activation energy of a reaction. D. All enzymes function at the same temperature and pH level.

[Terjawab] Which of the following movements propels food along the GI tract? A. Mixing B. Churning C. Segmentation D. Peristalsis

[Terjawab] A cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. Purple offspring result due to incomplete dominance. Then, two of the purple offspring are crossed. What proportion of the offspring from the second cross will be purple? A. 1 in 4 B. 2 in 4 C. 3 in 4 D. 4 in 4

[Terjawab] A hypothesis must be A. changed B. scientific C. testable D. controlled

[Terjawab] What is the name of the biomolecule comprised of amino acids? A. Protein B. Carbohydrate C. Lipid D. Vitamin