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.
Explanation:
Bases on the structure of their mouth and the type of the skeleton, scientists have divided the fish into 3 main categories:
- Jawless Fish
- Cartilaginous Fish
- Bony Fish
<u>Lampreys:</u>
- Lampreys belong to the first category i.e. Jawless Fish.
- Lampryes are mostly parasites and feed on other fish by sucking their blood and tissues using their suction like mouth structures.
- Their body is not covered with scales and they do not have a pair of fins.
<u>Skates:</u>
- Skates belongs to the second category i.e. Cartilaginous Fishes.
- They have jaws and pair of fine unlike Lampreys (Jawless Fish)
- Their bodies are covered with scales.
- These are carnivores.
Answer:
Translation
Explanation:
Translation is when the information on the mRNA is used to make proteins.
<span>I believe it is called secondary succession.
I hope this helps!</span>
Answer:
when you dont enough water this is what would happens to your body
water is an essential for human life any deficit in normal body water though dehydration sickness exercise or heat stress can make us feel rotten. first we feel thirsty and fatigued and may develop a mild headache. This leads to various symptoms of dehydration including thirst and dry mouth, decreased urine output, muscle cramps, headache, lightheadedness, sleepiness and a lack of tear production. When the eyes stop producing tears, they are no longer properly lubricated, which can lead to dry eye, eye strain and vision problems.
Explanation
hope this helps
