EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Complete the sentence:All animals ____
A
have 2 eyes.
B
are made of many cells.
C
move quickly.
D
have a backbone.
Explanation: 

Detailed explanation-1: -Animals are all multicellular, meaning multiple cells work together to form the whole organism. In complex organisms, such as humans, these cells can be highly specialized to perform different functions.

Detailed explanation-2: -All animals ranging from sponges to mammals are composed of animal cells. These cells can form a simple organism or can form tissues, organs and systems i.e more complex. Some cells may be specifically produced by a certain animal to adapt to its environment.

Detailed explanation-3: -All plants and animals are made up of cells.

Detailed explanation-4: -Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall.

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