Practice Test: Reading Comprehension - 62 | 100 RCs for GMAT PDF Download

Reproduce itself by means of shoots and runners.

Survive to the end of the growing season.

Survive in harsh climates.

Respond to the fecundity decline by producing more flowers.

Attract large insects as pollinators.

The fecundity of some flowering plants in those regions may have decreased to an even greater degree than in the regions where Matacil is used.

Insect mortality in those regions occurs mostly among the larger species of insects, such as bumblebees.

The number of seeds produced by common plant species in those regions is probably comparable to the number produced where Matacil is sprayed.

Many more plant species have become extinct in those regions than in the regions where Matacil is used.

The spruce budworm is under better control in those regions than in the regions where Matacil is sprayed.

A flowering tree pollinated by only a few insect species

A kind of insect-pollinated vine producing few flowers

A wind-pollinated flowering tree that is short-lived

A flowering shrub pollinated by a large number of insect species

A type of wildflower typically pollinated by larger insects

Species interdependence is a point of weakness for some plants, but is generally beneficial to insects involved in pollination.

Efforts to control the spruce budworm have had deleterious effects on the red-osier dogwood.

The used of pesticides may be endangering certain plant species dependent on insects for pollination.

The spraying of pesticides can reduce the fecundity of a plant species, but probably does not affect its overall population stability.

Plant species lacking key factors in their defenses against human environmental disruption will probably become extinct.

creeping dogwood is a species that does not resemble other forest plants

creeping dogwood is a species pollinated by a broader range of insect species than are most dogwood species

creeping dogwood grows primarily in regions that were not sprayed with pesticide, and so served as a control for the experiment

creeping dogwood is similar to the red-osier dogwood, but its insect pollinators are known to be insensitive to the pesticide used in the study

geographical range of the creeping dogwood is similar to that of the red-osier dogwood, but the latter species relies less on seeds for reproduction

A plant’s fecundity decreases as the percentage of unpollinated flowers on the plant increases.

A plant’s fecundity decreases as the number of flowers produced by the plant decreases.

A plant’s fecundity increases as the number of flowers produced by the plant increases.

A plant’s fecundity is usually low if the plant relies on a small number of insect species for pollination.

A plant’s fecundity is high if the plant can reproduce quickly by means of vegetative growth as well as by the production of seeds.

Human activities that result in environmental disruption should be abandoned.

The use of pesticides is likely to continue into the future.

It is economically beneficial to preserve endangered plant species.

Preventing the endangerment of a species is less costly than trying to save an already endangered one.

Conservation efforts aimed at preserving a few well-chosen species are more cost-effective than are broader-based efforts to improve the environment.