Populations and ecosystems

Herbivores belong in which trophic level of the energy pyramid?

Camouflage is an adaptation that can be useful to _____________________.

Without bacteria, nothing else on Earth could live. This is primarily true because of the role they play in _________________.

Can changes in an enviorment effect the population?

The food web in the diagram below shows interactions among organisms in a wetland. According to the diagram, which of these pairs of organisms are competing for the same food?

What term is used to describe a group of rabbits of the same species that live together in the same forest at the same time?

Monarch butterflies are poisonous and viceroy butterflies are not, yet they look very similar. Which of these statements describes this situation?

If the wolf population shrinks what will happen to the deer population

The figure below shows how the ocean is divided into zones, based on how much light penetrates the water and how close each zone is to land masses. Each of the zones is characterized by different organisms.

What are mammals?

what does abiotic mean?

You can usually tell something about what a mammal eats by looking at its teeth. Which of these describes the teeth that herbivores usually have?

Que When a species becomes overpopulated in a particular ecosystem, typically, some individuals will survive, some will die, and some will _______.

What best describes what tigers are

Which cactus feature is an adaptation that protects it from predators?

what does biotic mean?

A particular area can support a finite number of organisms. When the number of a species goes beyond what an area can support, it is called ________.

what do all ecosystems have?

What components make up an environment?

Which statement best describes humans?