Biological Evolution And Classification: Question Preview (ID: 25075)


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Which of these best illustrates natural selection?
a) An organism with favorable genetic variations will tend to survive and breed successfully. b) A population monopolizes all of the resources in its habitat, forcing other species to migrate. c) A community whose members work together utilizes all existing resources and migratory routes. d) The largest organisms in a species receive the only breeding opportunities.
A population of termites begins with dark and bright members. After several generations, the population consists almost entirely of dark members because the brightly colored termites are easier for predators to see. This demonstrates
a) The evolution of a new species. b) Natural selection. c) Artificial selection. d) Isolating mechanisms.
Odontomaehus bauri is a species of ant that has a trap jaw. This jaw system evolved from basic mouth parts that all ants have, but the jaw is longer, the joint is a different shape, and the muscles are larger. What explains this evolution?
a) The trap jaw increases the ants' body mass. b) The trap jaw allows the ants to eat only one kind of food. c) The trap jaw is the ants; only means of species recognition. d) The trap jaw increases the ants' chances of survival and reproduction.
Which is a characteristic of members of the plant kingdom that distinguishes them from members of the animal kingdom?
a) Storage of energy in chemical bonds b) Exchange of water with the environment c) Use of mRNA during protein production d) Use of chlorophyll for solar-energy transformation
Members of the kingdom animalia are best described as -
a) unicellular, prokaryotic, heterotrophic b) unicellular, eukaryotic, autotrophic c) multicellular, eukaryotic, heterotrophic d) multicellular, eukaryotic, autotrophic
Multicellular eukaryotes that are usually mobile and obtain food from other organisms probably belong to the kingdom
a) plantae b) fungi c) animalia d) protista
Which condition is essential for natural selection to result in a new species?
a) unlimited resources b) an inherited variation c) a static environment d) a long life span
A native species and a non-native species are competing for resources within the same ecosystem. The non-native species is more likely to survive than the native species in which of the following situations?
a) Both the native species and the non-native species thrive on the same food source. b) The native species is immune to certain pathogens in the ecosystem. c) Predators prey on both native and non-native species. d) The non-native species has no natural enemies in the ecosystem.
If two organisms belong to the same taxonomic group, they are related. Similarity at which of these levels indicates the closest relationship?
a) kingdom b) class c) order d) genus
Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine?
a) The color patterns of the offspring of each species b) How much the size ranges of the two species differ c) The methods of protein synthesis that each species uses d) How closely related the two species are to each other
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