Biology

Which of these is not an organ system?

• Respiratory system

• Photosynthesis

• Circulatory system

• Excretory system

Which of these echinoderm?

• Starfish

• Snail

• Shrimp

• Spider

Vertebrates does not have backbone

• TRUE

• FALSE

Combustion occurs in living cells.

• True

• False

Which of these is an amphibian?

• frog

• salamander

• fishes

• lion

A crocodile has how many chambers in its heart?

• one

• two

• three

• four

Reptiles are cold blooded

• True

• False

The nucleus is the

• Power house of the cell

• Waste collector in the cell

• Control center of the cell

• protein factory in the cell

Which of these is a part of vascular bundle?

• Parenchyma

• Xylem

• Collenchyma

• Sclerenchyma

Which of these are warm blooded?

• Osrich

• Snakes

• Lizard

• Parakeet