"Adjacent chromatids in homologous chromosomes cross over during meiosis in sperm and egg formation" is the one among the following choices that describes what <span>causes genetic variation during human sexual reproductive processes. The correct option among all the options given in the question is the second option.</span>
The two examples of organisms that differ greatly in their biotic potentials are -
1. Humans and orangutans - These have low biotic potential as they produce only one or two off springs at a time. They have long gestation periods and limited time span to produce offsprings.
2. Bacteria and Scorpio- These organisms have high biotic potential as they can produce thousands of offspring at a time. They also have a short gestation time, so throughout their life, they produce more offsprings.
Radiometric dating is a kind of technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.
Answer:
Oxygen is one and i can't think of others
Explanation:
<span>Cho finds a dinosaur tooth while on a school field trip. She has found an original-remains fossil . </span>Original remains can be
changed, as minerals in nearby sediments
are stored into the porous areas of an
animal’s hard parts (teeth in this instance) after the soft parts have
decayed. This happens with dinosaur bones and teeth. <span>
</span>
