All populations of all species in a habitat are a __________. Fill in the blank(s) with the appropriate word(s)
community
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A researcher is comparing the species diversity of two islands. Both islands are roughly equal in size. However, one island is much closer to the mainland
She determines that the S value for the island closer to the mainland is ____________ the S value for the island located farther from the mainland. In addition, she finds that the closer island's extinction rate is _______________ the extinction rate on the farther island. A. higher than; lower than B. lower than; higher than C. higher than; the same as D. lower than; the same as E. the same as; higher than F. the same as: lower than
How many net ATP and NADH molecules are produced from one molecule of glucose during glycolysis?
A. 4 ATP, 2 NADH B. 3 ATP, 4 NADH C. 2 ATP, 6 NADH D. 2 ATP, 2 NADH E. 0 ATP, 6 NADH
Answer the following statements true (T) or false (F)
1. In red-winged blackbirds, females tend to choose males with the most desirable territories and males compete with each other for territories. Redwing blackbirds demonstrate both intersexual selection and intrasexual selection. 2. Cryptic female choice is a type of intrasexual selection. 3. A population undergoing microevolution would show Hardy-Weinberg disequilibrium. 4. The Mexican axolotl (Ambystoma mexicanum) is an amphibian that has a derived mode of development characterized by metamorphic failure. This mode of development results in an entirely aquatic life cycle and is an example of paedomorphosis.
Corals in a tropical reef provide protection from ocean waves and currents to the other species that live there and have the greatest influence on the reef community. The corals are a(n) ______ species.
a. invasive b. foundation c. pioneer d. keystone