Answer the following question given this paragraph: Sexual reproduction results in infinite possibilities of genetic variation. In other words, sexual reproduction results in offspring that are genetically unique. They differ from both parents and also from each other. This occurs for a number of reasons. Q: What kind of reproduction results in offspring that are genetically unique? Choices: - budding - fragmentation - asexual reproduction - sexual reproduction A:
sexual reproduction
Answer the following question given this paragraph: Gram-negative bacteria have a cell wall made of peptidoglycan, whereas Gram-positive bacteria have a cell wall made of lipoteichoic acid. Figure 22.19 Which of the following statements about the nitrogen cycle is false? a. Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates (NO3-) into nitrogen gas (N2). Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+). Q: Gram-negative bacteria have a cell wall made of peptidoglycan, whereas gram-positive bacteria have a cell wall made of what? Choices: - choanocyte acid - solmization acid - hydrolic acid - lipoteichoic acid A:
lipoteichoic acid
Q: Answer the following question given this paragraph: Q: Researchers have also used insect courtship to explore genetic variation underlying differences in what? Choices: - reproduction - function - instance - behavior A:
A: behavior
Question: Answer the following question given this paragraph: Figure 14.7 (a) Energy is required to partially overcome the attractive forces between molecules in a solid to form a liquid. That same energy must be removed for freezing to take place. (b) Molecules are separated by large distances when going from liquid to vapor, requiring significant energy to overcome molecular attraction. The same energy must be removed for condensation to take place. There is no temperature change until a phase change is complete. Q: What is required to partially overcome the attractive forces between molecules in a solid to form a liquid? Choices: - fuel - hydrogen - oxygen - energy A:
Answer: energy
*Question*
Answer the following question given this paragraph: whereas atherosclerosis is a more specific term for the build-up of plaque in the walls of the vessel and is a specific type of arteriosclerosis. There is also a distinct genetic component, and pre-existing hypertension and/or diabetes also greatly increase the risk. However, obesity, poor nutrition, lack of physical activity, and tobacco use all are major risk factors. Treatment includes lifestyle changes, such as weight loss, smoking cessation, regular exercise, and adoption of a diet low in sodium and saturated fats. Medications to reduce cholesterol and blood pressure may be prescribed. For blocked coronary arteries, surgery is warranted. In angioplasty, a catheter is inserted into the vessel at the point of narrowing, and a second catheter with a balloon-like tip is inflated to widen the opening. To prevent subsequent collapse of the vessel, a small mesh tube called a stent is often inserted. In an endarterectomy, plaque is surgically removed from the walls of a vessel. This operation is typically performed on the carotid arteries of the neck, which are a prime source of oxygenated blood for the brain. In a coronary bypass procedure, a non-vital superficial vessel from another part of the body (often the great saphenous vein) or a synthetic vessel is inserted to create a path around the blocked area of a coronary artery. Q: Plaque is surgically removed from the walls of a vessel in which surgery? Choices: - discectomy - lumpectomy - arthroscopy - endarterectomy A:
**Answer**
endarterectomy
(Q).
Answer the following question given this paragraph: 4. State how phagocytosis helps defend the body from pathogens. Q: What does phagocytosis defend the body from? Choices: - allergies - obesity - parasites - pathogens A:
(A).
pathogens