Because it doesnt have cell wall nor chloroplast
Cyanobacteria were the first life forms on earth, according to fossils dating back 3.7 billion years.
<span>The visual cliff is a laboratory device for testing <u>depth perception</u> in infants. This device is basically an apparatus that resembles a cliff, on top of which a child is placed so as to check its perception of depth from the cliff to the bottom of it. This is important so as to check whether the child has visual or motor problems. </span>
Answer:
here
Explanation:
There will be the nitrogenous bases (adenosine, cytosine, guanine, thymine), held in complementary pairs (A T, C G) by hydrogen bonds. Weak van der Waal's forces exists between the 'rungs'.
Answer: In all living systems we can always find 4 basic elements: carbon, oxygen, nitrogen and hydrogen. Carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.4 %. Oxygen and hydrogen are present in almost all organic compounds which create living organisms.
Explanation:
