Coral reefs occur in nutrient-poor areas of the ocean
Indicate whether the statement is true or false
TRUE
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Which of the following takes place as an ice cube cools a drink?
A) Molecular collisions in the drink increase. B) Kinetic energy in the liquid water decreases. C) A calorie of heat energy is transferred from the ice to the water of the drink. D) The specific heat of the water in the drink decreases. E) Evaporation of the water in the drink increases.
Some members of the species D. bifasciata produce mostly female offspring if reared at or below 21°C. The causative agent of this condition (called sex ratio) is a protozoan infection that is lethal to most male larvae
How can you demonstrate that it is both inherited and extrachromosomal? A) Inject ooplasm of affected females into normal females and then mate these with normal males. B) Inject cytoplasm from somatic cells of an affected female into normal females and then mate them with normal males. C) Mate affected females with normal males and assess daughter somatic cells for presence of the protozoan. D) Perform reciprocal crosses of affected and normal individuals and examine the offspring for infection. E) Perform reciprocal crosses of affected and normal individuals and look for affected male offspring.
What are homologous structures, and how do they provide evidence for evolution?
What will be an ideal response?
The Coconino Sandstone, which consists mainly of weathered sand and contains trace fossils such as ripple marks and reptile tracks, suggests that this layer is similar to which of the following environments?
A. Desert B. River system C. Coastal plain D. Ocean E. Tropical forest