Answer:
An inversion
Explanation:
An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of the chromosome breaks.
Answer:
D fleas affect all animals
The beginnings of a brain first become apparent around four weeks after conception when the neural plate folds to form the neural tube
If photosynthesis stopped, plants would stop converting carbon dioxide -- an air pollutant -- to organic material. ... Even if all the plants on Earth were to die, people would remain resourceful -- especially if their lives depended on it.
Answer:
D.A substance that is produced during a chemical reaction
