Answer:
Elements that are heavier than hydrogen are spread throughout the universe only during a supernova explosion. It is an explosion of the stars when the star reaches its death stage. When the star is alive, the gravity of its core squeezes lighter atoms like hydrogen to make heavier atoms like carbon and helium.
Answer:
Restriction enzymes are used to cut DNA sequences at specific areas. They have a nucleotide code on them. So when this restriction enzyme finds that code in your DNA it cuts it there.
Explanation:
Science
Answer:
A) It helps to separate the chromosomes
Explanation:
Answer:
Either One, throw it out into the world, litter.
OR Two, put the waste into a plastic bag and throw it into a trash-compactor.
Explanation:
Fern sperms are flagellated, which is why ferns are dependent on water for reproduction. Water serves as a medium in which sperms can reach the egg cell for fertilization. The sperm only needs a thin film of water to swim <span>from the antheridium and to the archegonium</span>.
