Ecosystems
Biology
Anatomy
Solutions
Anthropology
100

What is an Ecosystem?

an ecosystem is a biological community of interacting organisms and their physical environment.

100

Studys shown that 40%____-tailed deer have the corona virus.

White-tailed deer.

100

How many senses do humans have?

5 main senses.

100

A pure substance mixed with another pure substance.

A Mixture.

100

When were humans first created?

2-6 million years ago

200

What is biodiversity?

Biodiversity is different kinds of life you find in a certain area.

200

What is the most common element in the human body?

Oxygen is the most common element in the human body.

200

What causes hiccups in humans?

Being excited or under emotional stress. Experiencing sudden temperature changes. Swallowing air.

200

the liquid in which a solute is dissolved to form a solution.

A solvent.

200

How many languages were created by humans? 

around 6,500 different languages.

300

What do plants compete for in an ecosystem?

Nutrients, water, and sunlight.

300

Can humans ever directly see a photon?

Yes, photons are the only things that a human can directly see.

300

How many different blood groups/types are there in the human body?

8 blood groups.

300

a mixture whose components can be separated by mechanical means as distinguished from a chemical compound.

Mechanical Mixture.

300

How many human races in the world?

according to scientists in modern days, there is only one human race.

400

What causes the most destruction in an ecosystem?

Pollution is one of the main causes of destruction.

400

What do sharks not have in their body, unlike many other fish?

Sharks do not have a skeleton, (bones) because their body structure is made from cartilage.

400

What causes hypothermia to the human body?

prolonged exposures to very cold temperatures.

400
the minor component in a solution, dissolved in the solvent.


Solute.

400

By what percent did humans evolve in the past 5,000 years.

7%

500

What are the three main living organisms in an ecosystem? 

Producers, Consumers, and decomposers.

500

What is the smallest cell known?

Mycoplasma gallicepticum

500

How far can the human eye see?

The human eye can see 3 miles.

500

A mixture made of many substances that looks like its just one pure mixture.

Solution.

500

How many cells can the human body have?

About 100 trillion.