The correct option is this: TWO DRAGONFLY SPECIES REGULARLY MATE BUT THEIR GAMETES ARE INCOMPATIBLE.
In biology, there are different types of reproductive barriers, one of these is prezygotic barrier. A prezygotic barrier is a kind of mechanism that prevent reproduction from occurring by blocking fertilization. In this case, the concerned species will be mating together, but their gametes will not be compatible and thus, zygote will not be formed.
A postzygotic barrier on the other hand is said to occur when the reproduction process is blocked after the formation of zygote or after fertilization has taken place. A good example of this is an hybrid mule that is sterile and can not reproduce.
Answer:
B) the universe
Explanation:
the answer is universe because universe consists galaxy.
galaxy doesn't contain universe
Thinking, moving, growing, keeping warm, reproducing, looking listening
Answer:
Longer hydrocarbon molecules have a stronger intermolecular force. More energy is needed to move them apart so they have higher boiling points . This makes them less volatile and therefore less flammable .
Answer:
D. It’s used to make paper products.
Explanation:
Cellulose is considered a major material when creating a large amount of paper products like papers, paperboard, and cardboards
