Question

Hello, I need help on these. Please explain if you can! Thank you.

Fire is a common occurrence in prairie grasslands. What do you think would happen to a grassland area if fire were excluded for many decades?

A. some trees would slowly begin to appear.

B. there would be no change.

C. it would become a desert.

D. it would slowly turn into a tropical rainforest ​

You were strolling in art museum with a friend and paused to admire a painting of a forest. You noticed tall emergent trees, dense canopy full of wildlife, a lot of climbers and pretty epiphytes. Your friend is eager to know what type of forest it is. What would you say?

A. it is definitely a tropical rain forest
B. it is a montane coniferous forest
C. it must be a mangrove forest
D. it is a temperate deciduous forest

D. it would slowly turn into a tropical rainforest

Tundra plants rely on vegetative reproduction or autogamy for reproduction. Why?

A. vegetative reproduction and autogamy greatly increase genetic diversity.

B. There must be low numbers and unreliability of pollinators.

C. these two reproduction methods make the plants more adaptable to changing conditions.

D. outbreeding only weakens subsequent generations.

Which of the following sets of organisms would you expect to find in a herb barren (a polar desert)?

A. mosses, mangroves, lichens
B. conifers, lichens, cyanobacteria
C. None; herb barrens cannot support life.
D. mosses, lichens, cyanobacteria
E. Lianas, lichens, epiphytes