Animals and plants are made of billions of cells because if there was only one or two cells the nutrients would take years to get to the nucleus and the cell/nucleus/organism would die. Same with the oxygen that the organism absorbed. Since the plant/animal is made of billions of cells the nutrients and oxygen get to the nucleus quickly.
Unicellular organisms have only one cell. They have a large surface area to volume ratio and rely on simple diffusion to meet their needs. Multicellular organisms have many cells. The cells are specialized and have a certain job to do.
yes they are and don't let anyone tell you otherwise
Organisms made of only one cell are known as unicellular organisms. Examples include bacteria, archaea, protists, and some types of fungi. These organisms carry out all essential functions for life within a single cell.
Yes, different organisms have different substances in their cell walls. For example, plants have cell walls made of cellulose, fungi have cell walls made of chitin, and bacteria have cell walls made of peptidoglycan. These differences in cell wall composition are important for distinguishing between different types of organisms.
A "multi cellular" organism has a body made out of more than one cell. Humans are multi cellular organisms. A "unicellular" organism has a body body made out of just one cell. An amoeba is a unicellular organism.
Unicellular organisms
Unicellular organisms and gametes
Unicellular organisms contain just one cell, example: amoeba, bacteria. Multicellular organisms are made up of more than one cell which includes everything other than the unicellular organisms.
cell:)
are made of more than one cell.
Yes
yes
Plants and fungi have cell walls. Note that while plants have cell walls made of cellulose, fungi cell walls are made of chitin.
No. Organisms with more than one cell are called multicellular organisms, which include humans, dogs etc. Organisms with only one cell are called unicellular, or singled celled organisms, and this group includes protozoans, specific algae and some spores. Hope this helps!
Oh yes, there are lots of single celled organisms. These include bacteria and protozoa.
organisms made of a single cell
one, all organisms are made of one or more cells. two, the cell is the basic unit of organization in organisms. three, all cell are made of other cells!