Life on Land Quick Check

Question

1 of 31 of 3 Items
Question
Which of the following factors made the land a place where the first land plants could thrive? Select the two correct answers.(1 point)
Responses

evolution of animals
evolution of animals

low levels of oxygen in the atmosphere
low levels of oxygen in the atmosphere

new, nutrient-rich soil made of cyanobacteria and deteriorating rock
new, nutrient-rich soil made of cyanobacteria and deteriorating rock

abundant sunlight for photosynthesis

Answer 1

evolution of animals

new, nutrient-rich soil made of cyanobacteria and deteriorating rock

Answer 2

Select the correct answer from the list.(1 point)
Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to
, which aided in the formation of
.

Answer 3

Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to increase, which aided in the formation of new, nutrient-rich soil made of cyanobacteria and deteriorating rock.

Answer 4

Select the 2 correct statements that describe cyanobacteria.(1 point)
Responses

Cyanobacteria lived in the ocean
Cyanobacteria lived in the ocean

Cyanobacteria decreased the levels of oxygen in the atmosphere
Cyanobacteria decreased the levels of oxygen in the atmosphere

Cyanobacteria have complex cells containing a nucleus
Cyanobacteria have complex cells containing a nucleus

Cyanobacteria were the first photosynthesizing organisms

Answer 5

Cyanobacteria lived in the ocean.

Cyanobacteria were the first photosynthesizing organisms.