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blab1108 e... -Saved Insert Draw Design Layout References Mailings Review View H

ID: 208072 • Letter: B

Question

blab1108 e... -Saved Insert Draw Design Layout References Mailings Review View Help Foxit PDFTell me File Home New Roman AaBbCcDc AaBbCcD AaBbC Normal TNO Spac." Heading 1 Styles Paste Editing Clipboar Font Paragraph 1) cells undergo meiosis to to form pollen? licrospore mother cells 90 B) Endosperm cells D) Generative cells C) Macrospore mother cells 2) If a plant mutated so it could not produce a tube nucleus, what would be the effect? 2) A) Pollen production would cease B) The root system would be unable to take up water C) The male gametes would not reach the female gamete D) Photosynthesis would be severely decreased 3) If a gardener does not remove spent flowers from a plant, it may stop flowering. If 3) spent flowers remain, what does the plant not need to produce? A) Pollen C) Seeds B) Reproductive structures D) All of the choices are correct. 4) In alternation of generations, specifically what is the nature of the life stages that are4) alternating? A) Haploid sporophytes give rise to diploid gametophytes B) Haploid sporophytes give rise to haploid gametophytes. C) Diploid sporophytes give rise to haploid gametophytes. D) Diploid sporophytes give rise to diploid gametophytes. 5) What is the opening that allows for the growth of the pollen tube in a bean seed? 5) A) Tonoplast B) Micropyle C) Connexon D) Stomata 6) If a mutation caused a seed to lack cotyledons, what would be the effect on the embryo? 6) A) It would lack a food source B) It would lack the formative elements for leaves C) It would lack chloroplasts and be unable to undergo photosynthesis D) It would lack the formative elements for root structure 7) In which developmental stage do we first see cotyledons? A) Torpedo stage C) Globular stage B) Heart-shaped stage D) Proembryo 8) Noting that the intestine is the site of nutrient absorption, how might the typhlosole in 8) the intestine aid in this function? A) It has no effect. B) It decreases surface area. C) It increases surface area. )How do clams and oysters teed 9) A) They are sit-and-wait predators C They filter food out of the water B) They are active predators. D) They scrape food off rocks. 10) Your instructor has assigned an unknown animal to your lab group for you to identify. 10) The only information you are given is it is either a member of the Phylum Mollusca or the Phylum Annelida, it is discussed in this lab, and the animal you are observing is an adult. As your group observes the animal, you note the following: tentacles, a prostomium, a peristomium, a closed circulatory system, and parapodia. What is the identity of this creature? A) Hirudu B) Chiton C) Nereis D) Nautilus Page 1 of 6 1883 words + 100% 1:11 AM 3/10/2018

Explanation / Answer

Answer 1 a) Microspore mother cell.

Diploid (2n) microspore mother cells are housed in the anther and divide by meiosis toform four haploid (n) microspores.