Explanation

In carbon dioxide molecule, a carbon atom is joined by four covalent bonds to two oxygen atoms, which have two covalent bonds each.

Explanation

The hip and knee are the largest joints in the body.

The femur is the longest bone in the human body and the shortest bone is the stapes found in the middle ear.

Explanation

انسانی جسم کا نارمل درجہ حرارت 37 سینٹی گریڈ یا 98.6 فارن ہائیٹ ہوتا ہے۔

Explanation

Amoebas do not have cell walls because they are not plant cells.

Explanation

Both plant and animal cells are eukaryotic.

Animal cells have centrosomes , whereas Plant cells have a cell wall.

Explanation

The symbol of mercury is Hg .

Freezing point of mercury is -38.83C.

Boiling point of Mercury is 356.7 C.

Explanation

Eugenics is the practice or advocacy of improving the human species by selectively mating people with specific desirable hereditary traits

Explanation

Scientists at NASA have detected water vapour for the first time above the surface of Europa, a finding that supports the idea of a liquid water ocean sloshing beneath the miles-thick ice shell of the Jupiter's moon.

Explanation

Explanation

Stage clips hold the slides in place. If your microscope has a mechanical stage, the slide is controlled by turning two knobs instead of having to move it manually.