Undigested food will be diffused from the surface of skin and reproductive cells come out of the mouth in aurelia.
Explanation:
The gastro vascular system in aurelia helps remove carbon dioxide and waste material from aurelia as there is no specialised excretory system. The waste material is diffused out through general body surface.
Aurelia are dioceous which means sexes are separate. Four gonads of either sex lie radially on the floor of gastric pouches. The gametes when ripened gets shed in the stomach from gonads and comes out of the mouth.
The spermatozoa shed by the mouth in seawater gets carried to the body of female by mouth. The fertilization takes place in gastric pouches.
Answer:
Double fertilization
Explanation:
The phenomenon of double fertilization is unique to flowering plants (i.e., angiosperms). Each pollen grain produces two male gametes (sperm cells), one of which fertilizes the egg to form the zygote, whereas the other sperm fuses with polar nuclei in the female gametophyte in order to form a triploid cell (3n) called endosperm. Subsequently, this endosperm will support embryonic growth by supplying storage nutrients and by serving as a mechanical barrier during seed development and germination.
Answer:
B
Explanation:
once neurotransmitters are released into the synaptic cleft, it binds to its receptors at the postsynaptic membrane. voltage gated calcium channels open and allows calcium to flow in, an action potential is generated immediately and reaches the end of the axon
Answer:
My dad just recently turned 42, wbu?
Explanation: