Explain embryonic sac
Explain the embryonic sac? Specify the cells which form the embryonic sac? Specify their ploidies?
Expert
The embryonic sac refers to the female gametophyte of the angiosperms. The embryonic sac generally composed of three cells which remain next to micropyle, two lateral synergids and the central oosphere (egg); the polar nuclei, one binucleated cell, is placed within the central region; three antipodal cells remain in the opposite side to micropyle. As all these cells come through the mitosis from the functional megaspore they are haploid (n).
Do sponges contain circulatory, nervous and excretory systems? Answer: Sponges do not contain a nervous system neither circulatory nor excretory system.
After the neurula phase and from its ventral part to the dorsal how can the morphology of embryo be explained?
Do squids and octopus have exoskeleton?
Normal 0 false false
Define Analysis studio?
State the lasting form within the pteridophytes, the gametophyte or the sporophyte? How can it is compared to the bryophytes?
Regarding germ layers and the existence of coelom how arthropods are characterized? Answer: Arthropods are triploblastic (that is, they have three germ layers) and a
Who formed two-part naming system employed in biology?
Devoid of the saturation of transport proteins and under the similar concentration gradient how the speeds of simple diffusion can be compared to the speed of the facilitated diffusion?
Invoice Matching is nothing special though matching invoices with respect to the PO (purchase orders). Purchase orders have three types of matching options: A. Two way matching B. Three way matching.
18,76,764
1935780 Asked
3,689
Active Tutors
1438609
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!