The diagram below shows five objects in the solar system which have equal masses.

Which of these objects exerts the greatest gravitational force on Object 5?

Object 1
Object 2
Object 3
Object 4

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.

Agroup of students want to live a healthier life style they decide to use one of these following vegetable oils for cooking apex