Explanation

 Its chemical formula is CuO.

It contains copper and oxygen atoms in a ratio of 1:1.

Explanation

Bile is a fluid made and released by the liver and stored in the gallbladder.

Bile helps with digestion.

It breaks down fats into fatty acids, which can be taken into the body by the digestive tract

Explanation

Red blood cells (RBCs) are primarily responsible for transporting oxygen from the lungs to various tissues in the body.

They contain a protein called hemoglobin, which binds to oxygen molecules, facilitating their transport.

Explanation

 "Colony" is the correct collective noun for ants

While "colony" is the most common term, "army" 

Explanation

About 97% of the Earth's water is contained in the oceans, which is saltwater.

The remaining 3% is freshwater, but most of it is frozen in glaciers and polar ice caps.

Only about 0.3% of the Earth's water is freshwater that is readily available for human consumption, agriculture, and other uses.

Explanation

Non-renewable energy sources:

• Oil
  
• Nuclear energy
• Petroleum
• Natural gas & coal

Renewable sources of energy:

• Solar energy
• Wind energy
• Hydroelectric power
• Biomass energy
• Geothermal energy
• Tidal energy

Explanation

Order of Planets from the Sun (by distance):

• 1st: Mercury
• 2nd: Venus
• 3rd: Earth
• 4th: Mars

Explanation

A blood sugar level of 250 mg/dL is considered hyperglycemia (high blood sugar), especially 

Normal blood sugar is 70–99 mg/dL

fasting, low is below 70 mg/dL,

high is above 126 mg/dL fasting or 200 mg/dL after meals.

Explanation

 A heartbeat faster than 100 beats per minute is called tachycardia. 

Explanation

Invertebrates are animals that do not have a backbone or spinal column. This group includes:

• Insects
• Arachnids (like spiders and scorpions)
• Crustaceans (like crabs and lobsters)
• Mollusks (like squids and octopuses)
• Echinoderms (like starfish and sea urchins)
• Worms