Question

A scientist plants seedlings in different conditions to demonstrate how plants respond to their environment. Which of these observations provides evidence of gravitropism? (1 point)
O Seedlings planted in containers that are tipped over sideways grow
Seedlings planted in containers that are tipped over sideways extend their roots downward.
• Seedlings planted near a stick wrap around the stick.
Seedlings planted away from a source of sunlight grow toward the light.

Answer 1

Seedlings planted in containers that are tipped over sideways extend their roots downward.

Answer 2

Which condition is most likely to cause a plant to respond with dormancy? (1 point)
• being exposed to cold temperatures
• growing by nearby water
• growing in limited sunlight
• being touched by a stick or branch

Answer 3

Being exposed to cold temperatures is most likely to cause a plant to respond with dormancy.

Answer 4

Which of the following is an abiotic factor of a biome? (1 point)
• trees
• birds
• insects
• water

Answer 5

Water is an abiotic factor of a biome.

Answer 6

The plants in a biome grow very tall. Which statement most likely describes the abiotic factors in the biome? (1 point)
• The biomes' soil lacks nutrients.
• The biome has very cold temperatures year round.
• The biome has limited rainfall.
• The biome receives abundant sunlight

Answer 7

The statement, "The biome receives abundant sunlight" most likely describes the abiotic factors in the biome where the plants grow very tall.