A phylogeny is an evolutionary ”tree” of related
organisms that can be constructed by using
information obtained from the genetic material.
Genetic information is contained in all living cells,
in the form of long DNA molecules that take the
shape of connected double- stranded spirals
(DNA stands for deoxyribonucleic acid). DNA
spirals, or “helixes”, are tightly compressed in the
nucleus of every cell. Their information is
organized into a code made up of four small
molecules — the building blocks of DNA. The
molecules, called nucleotides, are labelled:
A (adenine), C (cytosine), G (guanine) and T
(thymine).
It is possible to draw conclusions about the
evolution of a group of plant or animal species,
and the relationships among them, by comparing
selected pieces of DNA.
The circulatory system is used to transfer blood
Approximately 1,000 to 30,000 years old
Answer:
Hypotonic
Explanation:
Water moves via osmosis down the concentration gradient from an area of lower solute concentration (the surrundings) to an area of higher solute concentration ( the cell).
Answer:
All flowers with some dark blue petals and white petals.
Explanation:
