Blue Whale
What is the starting source of all energy in food webs?
Sunlight
Why does that peak for predator populations always come after the peak for prey populations?
The predator population increases when there is an abundance of food.
What kind of communication do the snakes use?
The rattlesnake uses auditory communication, and the coral snake uses visual communication.
A series of changes that occurs in an area with no soil or organisms exist.
Primary succession
What conclusion about the relationship between human population and the rate of deforestation does the graph support?
An increase in human population resulted in an increased rate of deforestation.
Which correctly shows a transfer of energy in the food web?
Blackberry → Red squirrel → Barred owl → Black bear
During winter in the tundra biome, plants and insects become scarce, causing the birds to migrate south. What is the primary factor for the birds to travel back to the tundra in the summer months?
There are more abundant food sources.
An omnivore is an organism that eats what?
Plants and animals
Spider crabs live in shallow areas of the ocean floor, and greenish-brown algae live on the crabs' backs. The algae helps the crabs blend in with their environment. The spider crab provides the algae with a place to live. What relationship do the spider crabs and algae have?
Mutualism
Increasing temperatures and melting ice due to climate change are affecting the tundra. Which TWO are examples of biotic factors that will be affected by these changes?
Plants and Birds
A levee is a structure that is designed to prevent a flood. What is the MOST LIKELY effect of a flood caused by a nutria burrow collapsing a levee?
The biodiversity of the area will decrease due to a loss of plant and animal life.
The first species to populate an area.
Pioneer species
Freshwater ecosystems include these 4 bodies of water.
Streams, rivers, ponds, and lakes
Which biome has a permanently frozen layer of soil called permafrost?
Tundra
It is important to control the growth of tree of heaven. Which TWO methods can be used to reduce tree of heaven population in Tennessee?
Introduce insects that can feed on tree of heaven
use herbicides that can control the growth of tree of heaven