Grade 4 NS Test!!!!!!!!!

What are the main systems of the human body?

• Los principales sistemas del cuerpo humano son el sistema nervioso, el sistema circulatorio, el sistema respiratorio, el sistema digestivo, el sistema excretor, el sistema muscular, el sistema esquelético, el sistema endocrino, el sistema inmunológico y el sistema reproductivo.

• El sistema de numeración romana, el sistema de escritura cuneiforme, el sistema de jeroglíficos

• El sistema de entretenimiento, el sistema de transporte, el sistema de comunicación

• El sistema solar, el sistema galáctico, el sistema universal

Name three different animal habitats.

• Ocean, Mountain, City

• Jungle, Swamp, Arctic

• Pond, Cave, Volcano

• Tundra, Rainforest, Desert

What are the four main types of weather patterns?

• The four main types of weather patterns are sunny, cloudy, rainy, and snowy.

• Tornado, hurricane, tsunami, earthquake

• Hot, cold, warm, cool

• Windy, foggy, thunderstorm, hail

Explain what an ecosystem is and give an example.

• An ecosystem is a type of musical instrument used in traditional African music. An example of an ecosystem is the djembe drum.

• An ecosystem is a type of computer software used for managing business operations. An example of an ecosystem is Microsoft Excel.

• An ecosystem is a type of clothing material made from recycled plastic. An example of an ecosystem is a polyester jacket.

• An ecosystem is a community of living organisms and their interactions with the non-living components of their environment. An example of an ecosystem is a coral reef, where various species of fish, plants, and other organisms interact with the surrounding water and physical structures.

Why is it important to conserve natural resources?

• It is important to conserve natural resources to ensure their availability for future generations, to maintain ecological balance, and to minimize environmental impact.

• To disrupt ecological balance

• To increase environmental impact

• To deplete resources faster

What is the function of the respiratory system in the human body?

• The function of the respiratory system is to take in oxygen and expel carbon dioxide from the body.

• The function of the respiratory system is to digest food.

• The function of the respiratory system is to produce hormones.

• The function of the respiratory system is to regulate body temperature.

Describe the characteristics of a desert habitat.

• Desert habitats are lush and have abundant vegetation.

• Desert habitats are home to polar bears and penguins.

• Desert habitats are typically cold and receive a lot of rainfall.

• Desert habitats are typically dry, hot, and receive very little rainfall. They often have sparse vegetation and are home to animals and plants that have adapted to the harsh conditions, such as cacti and camels.

How do food chains work in an ecosystem?

• Food chains in an ecosystem show the flow of energy and nutrients from one organism to another, starting with producers and ending with consumers or decomposers.

• Food chains in an ecosystem are just a made-up concept

• Food chains in an ecosystem have no impact on the environment

• Food chains in an ecosystem only involve animals eating other animals

What are renewable sources of energy?

• Fossil fuels

• Renewable sources of energy include solar, wind, hydro, geothermal, and biomass.

• Nuclear power

• Coal and natural gas

What is the role of the circulatory system in the human body?

• The circulatory system has no role in the human body

• The role of the circulatory system in the human body is to transport oxygen, nutrients, and hormones to cells throughout the body and to remove waste products such as carbon dioxide and metabolic waste.

• The circulatory system is responsible for producing energy in the body

• The circulatory system only transports water in the body