Unit 4 Lesson 1 Quiz - What Is An Ecosystem PDF

Unit 4 Name ______________________________________ Date _________ What Is an Ecosystem? Lesson 1 Quiz An ecosystem is made of both biotic and Areas with high diversity have abiotic things. Whi...

Unit 4 Name ______________________________________ Date _________ What Is an Ecosystem? Lesson 1 Quiz An ecosystem is made of both biotic and Areas with high diversity have abiotic things. Which describes the biotic increased competition among the part of the ecosystem? residents. plants that grow in soil Temperature, water, soil, and air are the animals that breathe oxygen abiotic factors in an environment. They are not the same everywhere. What role do all living things in the environment abiotic factors such as these play in an plants and animals that live in water ecosystem? If you stand in the middle of an open field, They control the changes of the you are standing among individual seasons. organisms, different species, populations, They prevent competition among and communities. What makes up one of populations. the populations in the field? They determine which plants and all organisms of the same species animals can live there. the different communities in the They help control the effect humans ecosystem might have on the ecosystem. the communities that occupy the When scientists talk about an ecosystem same niche and the type and number of animals and all organisms that live in a certain plants that live in one, they are also part of the field concerned about limiting factors. What are limiting factors? The rainforests in South America support many ecosystems. These ecosystems are the rate at which the plants and healthy. How does the diversity in the animals in an ecosystem reach rainforests help determine the health of maturity ecosystems? the ratio of animals that lay eggs to When diversity is high, there are those that give birth to live young more resources available. the things that are necessary to Resources in the environment last support a population of organisms in an area longer when the diversity is low. the difference between trees that lose Less diverse ecosystems have less their leaves in an ecosystem and competition among the residents. those that don’t Lesson Quiz AG 36 Grade 5 Assessment Guide © Houghton Mifflin Harcourt Publishing Company