Exploring GED Science Concepts and Principles

This video is part of the GED Science 2023 course, covering topics such as ecology, classification, and human anatomy. It explores the dynamics of ecosystems, including grassland and tropical rainforest food webs, and discusses the classification of organisms. The video also delves into human anatomy, explaining various body systems, and concludes with a discussion on the properties and phase changes of matter.

What is the primary role of grass in the grassland ecosystem?

• Primary producer

• Quaternary consumer

• Secondary consumer

• Tertiary consumer

Which organism is considered a secondary consumer in the grassland ecosystem?

• Hawk

• Grasshopper

• Frog

• Snake

What is the main purpose of taxonomy in biology?

• Naming species

• Studying organism structures

• Mapping geographical distribution

• Understanding evolutionary relationships

Which class do sharks belong to?

• Birds

• Mammals

• Reptiles

• Fish

What percentage of organisms in the pond ecosystem were amphibians?

• 20%

• 25%

• 30%

• 35%

What is the primary function of the circulatory system?

• To exchange gases

• To transport nutrients and remove waste

• To support body movement

• To protect the body

Which system is responsible for gas exchange in the human body?

• Circulatory system

• Respiratory system

• Endocrine system

• Digestive system

Which of the following is a tertiary consumer in a tropical rainforest?

• Butterfly

• Frog

• Grasshopper

• Jaguar

What type of property is density considered?

• Chemical property

• Biological property

• Physical property

• Geological property

What phase change occurs when a solid turns directly into a gas?

• Sublimation

• Melting

• Condensation

• Freezing