Answer:
The youngest crust (shown in red) is near mid ocean ridges and spreading zones. All three rock types in the earth's crust—igneous, sedimentary, and metamorphic—can also be recycled back to their original molten magma form. This process occurs when oceanic crust is pushed back into the mantle at subduction zones.
Answer:
Myelin sheath
Explanation:
Myelin sheath cover the axon of neurons and act as insulator for the faster transmission of signals.
Each axon is covered by multiple myelin sheaths and the gap between myelin sheath are known as Nodes of Ranvier.
In CNS myelin sheath is composed of glial cell called as oligodendrocytes and in PNS the myelin sheath is composed of Sachwann cells (glial cells).
GMOs may lead to the use of different herbicides or pesticides is a true statement.
Explanation:
The GMO crops leads to growth of weeds that can resist herbicides other than for which the GMO is genetically-modified. The over-usage or over-reliance on herbicide-resistant GMO (Genetically modified organisms) crops had given way to the growth of such superweeds.
The main characteristic of these superweeds is resistance to the herbicides or the weedkillers leading to infestation of farmlands by these superweeds Hence farmers need to add different herbicides or pesticides to control the growth of superweeds.
Answer:
The separate and unique function, the eye of a vampire spider play is to act as organ of senses to catch its prey apart from vision.
Explanation:
The vampire spider possesses large eyes with the help of which it detects the presence of mosquitoes, mainly female mosquitoes as they carry blood and jumps upon them to feed on. This spider have very well developed senses, they not only detect blood laden mosquitoes simply by smell, but also with their eyes and acuity of vision. The pairs of eyes in the front are large and contains about a thousand of receptors. In other words the vampire spider eyes make them the precise predator to be able to finely select their prey, that is, female mosquitoes laden with blood.