Answer:
DNA is also called deoxyribonucleic acid which is made up of two chains which wind around each other to form a double helix model. The 2 DNA strands are also called polynucleotides and they are made up of monomeric units known as nucleotides. These nucleotides are made up of one of four nitrogen-containing nucleobases: cytosine, guanine, adenine and thymine, a phosphate group, and sugar known as deoxyribose.
Nitrogen bases present on the two separate polynucleotides strands are bound together with the help of base pairing (such as adenine with Thymine) and with hydrogen bonds to form double-stranded DNA.
So, adenine in DNA is complementary to thymine.
Answer:
Growth is change of physical aspects of the organism. Development is overall changes and progressive changes of the organism.
Explanation:
Answer:
d
Explanation:
Because you need the cell to become tissue then the tissue Becomes organs then a bunch of organs become a organ system
Answer:
If a group of living organisms is unable to adapt to changing conditions with the earth's system, it shall face extinction.
Explanation:
As time goes by, the earth's systems keep changing, either negatively or positively.
If the earth's temperature decreases then living organisms shall adapt to surviving in cold conditions, they shall for instance grow heavy fur cover on their skin to cover them from the cold.
Those that fail to adapt to the cold conditions shall face extinction by being overpowered by cold related complications.
My Answer: <span>Crossing over
Hope I helped! :D</span>
