8.12 C Check #1

What is biodiversity?

• The variety of life in a particular habitat or ecosystem

• The number of species in a single population

• The amount of rainfall in a region

• The temperature range of an ecosystem

Tags

TEKS.SCI.8.12C

Which of the following is a simple procedure to measure biodiversity in an ecosystem?

• Counting the number of different species present

• Measuring the height of trees

• Calculating the average temperature

• Estimating the total biomass

Tags

TEKS.SCI.8.12C

How does biodiversity contribute to the stability of an ecosystem?

• By increasing the number of predators

• By providing a variety of resources and habitats

• By reducing the number of herbivores

• By decreasing the amount of sunlight

Tags

TEKS.SCI.8.12C

Which of the following best describes the relationship between biodiversity and the health of organisms within an ecosystem?

• Higher biodiversity leads to more competition and stress

• Higher biodiversity provides more food and shelter options

• Lower biodiversity results in more stable food chains

• Lower biodiversity increases genetic diversity

Tags

TEKS.SCI.8.12C

What is one way to describe the sustainability of an ecosystem?

• The ability to maintain ecological processes over time

• The speed at which species can migrate

• The amount of sunlight it receives

• The number of predators it supports

Tags

TEKS.SCI.8.12C

Which of the following actions can help increase biodiversity in an ecosystem?

• Planting a variety of native plants

• Introducing non-native species

• Increasing pesticide use

• Reducing the number of herbivores

Tags

TEKS.SCI.8.12C

What is the primary focus of biodiversity conservation?

• To increase the number of predators

• To preserve the variety of species and their habitats

• To reduce the amount of rainfall

• To increase the temperature of ecosystems

Tags

TEKS.SCI.8.12C

How can biodiversity affect the sustainability of an ecosystem?

• By providing a buffer against environmental changes

• By reducing the number of available niches

• By increasing the likelihood of disease outbreaks

• By decreasing the genetic diversity of species

Tags

TEKS.SCI.8.12C

Which of the following is a basic concept related to biodiversity?

• Genetic variation within species

• The speed of water flow in a river

• The height of mountains

• The depth of the ocean

Tags

TEKS.SCI.8.12C

Why is it important to maintain biodiversity in an ecosystem?

• To keep ecosystems stable

• To increase the number of predators

• To decrease the amount of sunlight

• To reduce the number of species

Tags

TEKS.SCI.8.12C