Remaining Time: 1 hour, 02 seconds. Question Completion Status QUESTION 10 Which
ID: 214882 • Letter: R
Question
Remaining Time: 1 hour, 02 seconds. Question Completion Status QUESTION 10 Which group of plants goes through the gastrula stage of embryonic development? bryophytes O non-seed vascular plants gymnosperms angiosperms O All of these plant groups have a gastrula stage None of these plants have a gastrula stage. QUESTION 11 Not all animals have a mouth and an anus. In order t have them, an animal must havesymmetry O no symmetry Oaccommodating bilateral radial Click Save and Submit to save and submit. Click Save All Answers to save all answers. O Type here to searchExplanation / Answer
(A)-all of these plants group have a gastrula stage because when the pollen grains attached toh the stigma and going to the egg . thay fuge to each other and from polar nuclie one polar nuclie converted into endospore nucleus and one coverted into zygote after tha thay convert into seed coat, embryo and endosperm. between the endosperm and embryo thay from gastrula stage.
(B)- that animal have a radial symmetry baecaus in that symmetry animal divided multiple times through a central axis creating multiple mirror images. thay have a top and a bottom but no left nor right, no head nor tail.