Q: What is an involuntary muscle contraction that moves rapidly along an organ like a wave called? Read this paragraph and choose the correct option from the provided answers: The organs of the GI tract are lined with mucous membranes that secrete digestive enzymes and absorb nutrients. The organs are also covered by layers of muscle that enable peristalsis. Peristalsis is an involuntary muscle contraction that moves rapidly along an organ like a wave (see Figure below ). You can watch an animation of peristalsis at this link: http://en. wikipedia. org/wiki/File:Peristalsis. gif . Choices: - ruptured nerve - apoptosis - esophagus - peristalsis A:
peristalsis

(Question)
Q: High consumption of saturated fats is linked to an increased risk of what disease? Read this paragraph and choose the correct option from the provided answers: Unsaturated fat is generally considered to be healthier because it contains fewer calories than an equivalent amount of saturated fat. Additionally, high consumption of saturated fats is linked to an increased risk of cardiovascular disease. Some examples of foods with high concentrations of saturated fats include butter, cheese, lard, and some fatty meats. Foods with higher concentrations of unsaturated fats include nuts, avocado, and vegetable oils such as canola oil and olive oil. The Figure below shows the percentages of fat types in some common foods. Choices: - pulmonary edema - high blood pressure - diabetes - cardiovascular disease A:
(Answer)
cardiovascular disease

Ques: Q: What traits are those that are inherited unchanged in a hybridization? Read this paragraph and choose the correct option from the provided answers: Upon compiling his results for many thousands of plants, Mendel concluded that the characteristics could be divided into expressed and latent traits. He called these dominant and recessive traits, respectively. Dominant traits are those that are inherited unchanged in a hybridization. Recessive traits become latent, or disappear in the offspring of a hybridization. The recessive trait does, however, reappear in the progeny of the hybrid offspring. An example of a dominant trait is the violetcolored flower trait. For this same characteristic (flower color), white-colored flowers are a recessive trait. The fact that the recessive trait reappeared in the F2 generation meant that the traits remained separate (and were not blended) in the plants of the F1 generation. Mendel proposed that this was because the plants possessed two copies of the trait for the flowercolor characteristic, and that each parent transmitted one of their two copies to their offspring, where they came together. Moreover, the physical observation of a dominant trait could mean that the genetic composition of the organism included two dominant versions of the characteristic, or that it included one dominant and one recessive version. Conversely, the observation of a recessive trait meant that the organism lacked any dominant versions of this characteristic. Choices: - alleles - mutations - recessive traits - dominant traits A:
Ans: dominant traits

(Q).
Q: What broad group of living things serves as the major producers in terrestrial biomes? Read this paragraph and choose the correct option from the provided answers: Plants are the major producers in terrestrial biomes. They have five basic needs: air, warmth, sunlight, water, and nutrients. How well these needs are met in a given location depends on the growing season and soil quality, both of which are determined mainly by climate. Choices: - vases - flowers - animals - plants A:
(A).
plants

Ques:Q: What is the most abundant biochemical compound? Read this paragraph and choose the correct option from the provided answers: Cellulose is another complex carbohydrate found in plants that is a polymer of glucose. Cellulose molecules bundle together to form long, tough fibers. Cellulose is the most abundant biochemical compound. It makes up the cell walls of plants and gives support to stems and tree trunks. Choices: - soil - methane - tissue - cellulose A:

Ans:cellulose

Q: In an exothermic reaction, what, specifically, is released? Read this paragraph and choose the correct option from the provided answers: When methane gas is combusted, heat is released, making the reaction exothermic. Specifically, the combustion of 1 mol of methane releases 890.4 kilojoules of heat energy. This information can be shown as part of the balanced equation. Choices: - water - humidity - precipitation - heat A:
heat