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Questions in biology

📝 Answered - What is the consequence of Duchenne muscular dystrophy on skeletal muscle fibers? A. Complete regeneration of muscle cells. B. Uncontrolled muscle contractions throughout the body. C. Damage to the sarcolemma leading to muscle fiber necrosis. D. Increase in muscle fiber size and strength.

📝 Answered - Groups of DNA bases that code for types of amino acids occur as A. quintuplets. B. doublets. C. triplets. D. quadruplets.

📝 Answered - A rainforest is an example of a A. biome B. population C. community D. habitat

📝 Answered - What initiates the excitation-contraction coupling process in muscle fibers? A) Influx of potassium in the sarcoplasmic reticulum. B) Relaxation of the muscle fibers. C) Saturation of myosin with ADP. D) Release of acetylcholine at the neuromuscular junction.

📝 Answered - Technology based on biology is called A. biotechnology B. biological engineering C. genetic engineering

📝 Answered - Which pathogen causes influenza? A. bacteria B. protozoan C. virus D. parasite

📝 Answered - In a $10 m^2$ ecosystem, there are 40 possums. What is the population density of possums? A. 4 per $m^2$ B. 10 per $m^2$ C. 40 per $m^2$ D. 2 per $m^2

📝 Answered - Question 1 What is the term for the cessation of bleeding when a blood vessel is damaged? A. Hemostasis B. Thrombosis C. Hemorrhage D. Hematopoiesis Question 2 What hormone stimulates red blood cell production in response to low oxygen levels? A. Thrombopoietin B. Aldosterone

📝 Answered - Although cellular respiration involves many steps, the whole process can be represented by a single equation: [tex]A+B \rightarrow C+D+E[/tex] Which substances would complete the equation that models the overall process of cellular respiration? A: B: C: D: E:

📝 Answered - Turkins, a cross between a chicken and a turkey, are raised on some farms in Wyoming. This is an example of: A. recombinant DNA B. cloning C. selective breeding D. hybridization