24/25 Energy Flow in the Ecosystem/ Biotic Abiotic Study Guide

What are the living parts of an ecosystem

Answer explanation

The living parts of an ecosystem are referred to as biotic factors. These include all organisms such as plants, animals, and microorganisms that interact within the environment.

Tags

NGSS.MS-LS2-3

What are the nonliving parts of an ecosystem called

Answer explanation

The nonliving parts of an ecosystem are called abiotic factors. These include elements like water, sunlight, soil, and air, which are essential for the survival of living organisms within the ecosystem.

Tags

NGSS.MS-LS2-3

An Ecosystem includes all of the _____ and _____ parts of an environment

• Living

• Nonliving

• Antibiotic

• Autotrophic

• Producing

Answer explanation

An ecosystem comprises all living (biotic) and nonliving (abiotic) components of an environment. The correct choices highlight the essential elements that interact within an ecosystem.

Tags

NGSS.MS-LS2-3

What is the main difference between biotic and abiotic factors in an ecosystem?

• Biotic factors are living things, while abiotic factors are non-living.

• Biotic factors are non-living, while abiotic factors are living.

• Both biotic and abiotic factors are living.

• Both biotic and abiotic factors are non-living.

Answer explanation

The correct choice states that biotic factors are living things, such as plants and animals, while abiotic factors are non-living elements like water and soil. This distinction is fundamental in understanding ecosystems.

Which of the following is an example of an abiotic factor in a desert ecosystem?

• Cactus

• Scorpion

• Sand

• Bird

Answer explanation

In a desert ecosystem, abiotic factors are non-living components. Sand is an abiotic factor, while cactus, scorpion, and bird are all biotic factors, as they are living organisms.

Tags

NGSS.MS-LS2-3

Identify if the following are either biotic or abiotic

Groups:

(a) Biotic

,

(b) Abiotic

• 
• 
• 
• 
• 
• 

Tags

NGSS.MS-LS2-3

Identify if the following are either biotic or abiotic

Groups:

(a) Biotic

,

(b) Abiotic

• 
• 
• 
• 
• 
• 

Tags

NGSS.MS-LS2-3

Match the following to either biotic or abiotic

Groups:

(a) Biotic

,

(b) Abiotic

• Termite mound

• Cactus

• Termite

• Sand

• Bacteria

• Air Currents

• Plankton

• Temperature

Tags

NGSS.MS-LS2-3

What trophic level of the energy pyramid is a Producer

• Bottom (1st)

• Second

• Third

• Fourth

• Fifth

Answer explanation

Producers, such as plants, occupy the bottom (1st) trophic level of the energy pyramid. They convert sunlight into energy through photosynthesis, forming the base of the food chain.

Why is there less energy available for animals higher up in the food chain?

• Animals waste a lot of energy.

• Not all food is eaten or digested.

• Most energy is used for staying alive.

• All of the above.

Answer explanation

Energy decreases at higher trophic levels due to energy waste, incomplete digestion, and the high energy demands for survival. Therefore, all these factors contribute to less energy being available for animals higher up in the food chain.

Tags

NGSS.MS-LS2-3