Answer:
B. Geothermal
Explanation:
Fossil fuels and coal both require extremely old material to form. Geothermal energy is generated and stored in Earth.
we need to see the diagramph
Answer:
dear user
the answer is given above
Answer:
Mechanical isolation
Explanation:
mechanical isolation is a form of prezygotic reproductive barrier, whereby similar species organisms become isolated and unable to successfully interbreed with each other to form zygote, as a result of incompatibility of their reproductive organ or structure, which prevents them from copulating. As a result of this, both species become separated as there is no gene flow between both.
The two species of juniper can be said to be kept separate by <em>mechanical isolation</em>, due to the differences and incompatibility of their reproductive structure.
