Biology

What energy takes place within cells?
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Coral reefs: (A) may occur as barrier, fringing, or atoll formations. (B) protect coastlines from erosion. (C) are found in shallow, nutrient poor, tropical waters. (D) are the most diverse of all marine environments. (E) All of these choices are correct
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a scientist wants to study maing behaviour in crickets
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A man with type A blood marries a women with type B. Their offspring all have type AB blood. the pattern of inheritance is called
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What is a basic unit a sugar molecule
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What are the functions of each cell part: 1. Cytoplasm 2. Cell Membrane 3. Nucleus 4. Endoplasmic Reticulum 5. Ribosome 6. Mitochondria 7. Lysosome 8. Golgi bodies 9. Vacuole 10 Chloroplast Cell wall
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Imagine that you are a genetic counselor, and a couple planning to start a family comes to you for information. Charles was married once before, and he and his first wife had a child with cystic fibrosis. The brother of his current wife, Elaine, died of cystic fibrosis. What is the probability that Charles and Elaine will have a baby with cystic fibrosis
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S: blogvel rise7. A person with diabetes cannot regulate their blood sugar,es cannot regulate their blood sugar mainly because the pancreas does not releaseenough insulin. To treat the disease, a person must monitor their blood sugamust take an injection of insulin. How do you think they would need to treat lowust monitor their blood sugar, if their blood sugar is high, theyhink they would need to treat low blood sugar?
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How is a solid substance affected by adding heat energy to it?O A) Its mass increases.OB) Its temperature decreases.OC) The motion of its particles increases.OD) The motion of its particles decreases.
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In chickens, a single mutation has a dominant effect on neck feathers (causing the chickens to have "naked necks") and a recessive effect on viability (causing the chickens to die early). Let N be the mutant allele and n the wild-type allele.A) Male chickens with naked necks are crossed to females with normal neck feathers. Think about the genotypes of those chickens. Among the F1 progeny, what % naked neck versus normal neck feather adult chickens do you expect?B) Male chickens with naked necks are crossed to females with naked necks. Among the F1 progeny, what % naked neck versus normal neck feather adult chickens do you expect?
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From an evolutionary perspective, why is the conscious awareness of ongoing sensations advantageous for animals? a. It provides the opportunity to choose responses rather than to respond instinctively. b. It facilitates the development of complex motor and sensory control. c. It allows animals to respond instinctively to oncoming threats. d. It enables animals to have a sense of mortality and a strong will to pass on their genes.
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The nurse in a primary care clinic and a client have come to see the primary care provider because the client is getting married and wants to have a prenuptial gynecologic examination. After the exam, the nurse asks about the woman's plan to have a family. The woman responds, "Why do I have to plan for a family?
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Pretend human eye color is determined by a single gene, with brown eyes (B) being dominant over blue (b). A brown-eyed man marries a blue-eyed woman, and they have three children. Two of the children are brown-eyed, and one is blue-eyed. What is the probability the brown-eyed children have the genotype BB?
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Which of the following is/are true?A. Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population B. Redheaded females in a population will only breed with red-headed males. The yellow-headed females will only breed with yellow-headed males. The red and yellow populations live on separate continents and rarely met in nature. The red and yellow individuals could breed and produce fertile offspring, but they normally do not. This would be an example of sympatric speciation C. Sympatric speciation does not require geographic isolation D. Redheaded females in a population will only breed with red headed males. The yellow-headed females will only breed with yellow-headed males. This population lives in the same geographic area The red and yellow individuals could breed and produce fertile offspring, but they normally do not. This would be an example of sympatric speciation. E. Sympatric speciation can be due to sexual (mate) selection
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When the blades of a fan move, they have mechanical energy.This mechanical energy comes from A. electrical energy flowing into the fan from the wall outlet. B. sound energy flowing into the fan from a radio. C. heat energy flowing into the fan from the air. D. light energy flowing into the fan through the window.
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Describe the different types of DNA mutations: a. point mutation b. base substitution c. frameshift d. triplet repeat
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science and engineering techniques used to manipulate living cells to produce useful products
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what is an example of Newtons 2nd or 3rd Law in daily life.
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Which of the following pathogens are unicellular, eukaryotic organisms that belong to the Kingdom Protista?a.) virusesb.) fungic.) bacteriad.) protozoa
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Peter recently traced his headaches, dizziness, and rapid heartbeat to eating soy food products. Most likely, Peter has a(n) ____.
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Match the items.a. specialized cells that carry out specialized functions of the organb. the process by which tissue stem cells mature into specialized cells with characteristics of the cells they replacec. the process of cell division to increase the number of cellsd. support cells 1. parenchymal cells 2. differentiation 3. stroma 4. proliferation
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A snowshoe hare produces a white coat during the winter, allowing it to better hide from predators. As a result, it has thrived and over time a majority of snowshoe hares in the population also produce white coats in the winter. Which of the statements is/are true?a. The white-coated hare has higher fitness than other hares that do not change coat color.b. The white-coated hare has a competitive advantage in its environment.c. The new population of hares resulted from natural selection.d. The alleles for a white winter coat increased over time.e. all of the above
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Acetylcholinesterase (AChE) is a protein that catalyzes the conversion of acetylcholine to acetate and choline. When the concentration of AChE in an aqueous solution is held constant, the rate of the reaction catalyzed by AChE increases with increasing concentrations of substrate. At low concentrations of acetylcholine, a small increase in the substrate concentration results in a large increase in the reaction rate. At high concentrations of acetylcholine, however, a large increase in the substrate concentration results in only a small increase in the reaction rate.Which of the following statements correctly explains the observed effect of the acetylcholine concentration on the rate of the enzyme-catalyzed reaction?A.The active site of AChE is specific for acetylcholine, and only one substrate molecule can occupy the active site at a time.B. AChE begins converting product into substrate as the acetylcholine concentration changes from low to high.C. The AChE protein becomes denatured as the acetylcholine concentration changes from low to high.D. The substrate specificity of AChE changes as the acetylcholine concentration changes from low to high
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___________________ are mutualistic fungi that help provide nutrients to trees, shrubs, and other plants.
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