Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
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Textbook Question
Chapter 38, Problem 3TYU
Double fertilization means that
- (A) flowers must be pollinated twice to yield fruits and seeds.
- (B) every egg must receive two sperm to produce an embryo.
- (C) one sperm is needed to fertilize the egg, and a second sperm is needed to fertilize the polar nuclei.
- (D) every sperm has two nuclei.
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Students have asked these similar questions
12) Why do you say that fertilization in seed plants is independent of water?
A) Spermatid cells are not necessary for fertilization to occur in seed plants.B) Seed plants use pollen instead of spermatid cells for fertilization.C) Spermatid cells are carried by pollen grains.D) Which spermatid cells in seed plants are capable of resisting desiccation indefinitely.
Plants with ovaries having only one or a few ovules are generally pollinated by:
(a) bees
(b) butterflies
(c) birds
(d) wind
5)What is the primary purpose of the fertilization membrane?
a)Provide the growing embryo with food
b)Serve as a barrier to protect the zygote from the environment
c)Prevent multiple sperm from attempting to merge with an egg
d)Hold the cells together when the zygote begins undergoing cell division
e)None of these options is correct
Chapter 38 Solutions
Bio 121 Campbell Biology Truman College
Ch. 38.1 - Distinguish between pollination and fertilization.Ch. 38.1 - Prob. 2CCCh. 38.1 - MAKE CONNECTIONS Does the life cycle of humans...Ch. 38.2 - What are three ways that flowering plants avoid...Ch. 38.2 - Prob. 2CCCh. 38.2 - Prob. 3CCCh. 38.3 - Compare traditional plant-breeding methods with...Ch. 38.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 38.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 38 - What changes occur to the four types of floral...
Ch. 38 - Prob. 38.2CRCh. 38 - Prob. 38.3CRCh. 38 - A fruit is (A) a mature ovary. (B) a mature ovule....Ch. 38 - Prob. 2TYUCh. 38 - Double fertilization means that (A) flowers must...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - A small flower with green petals is most likely...Ch. 38 - The black dots that cover strawberries are...Ch. 38 - DRAW IT Draw and label the parts of a flower.Ch. 38 - Prob. 9TYUCh. 38 - Prob. 10TYUCh. 38 - SCIENCE, TECHNOLOGY, AND SOCIETY Humans have...Ch. 38 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 38 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Cleistogamous flowers are invariably autogamous because” (a) These flowers do not open at all. (b) There is no chance of cross – pollen landing on the stigma. (c) These flowers have exposed anthers and stigma. (d) These flowers are wind pollinated.arrow_forwardWhen it is 1.5 months old, an average embryo is the size of (a) a black bean, (b) an adult fist, (c) its mother’s nose, (d) the head of a common pin.arrow_forwardIdentify each part in a flowering plant and write whether it is haploid(n) or diploid (2n).(a) Ovary ———————————(b) Anther ———————————(c) Egg ———————————(d) Pollen ———————————(e) Male gamete ———————————(f) Zygote ———————————arrow_forward
- Define the following terms:(a) aestivation (b) placentation (c) actinomorphic (d) zygomorphic (e) superior ovary (f) perigynous flower(g) epipetalous stamenarrow_forwardOf the three polar bodies , one came from an unequal division of the ovum , but from where did the other two arise ? a) What you really see are two polar bodies and the sperm that will fertilize the egg b ) One is an undeveloped primary oocyte that failed to mature . c ) The division of the first polar body into two polar bodies . d ) There were originally four polar bodies and one disappeared .arrow_forwardOf the three polar bodies , one came from an unequal division of the ovum , but from where did the other two arise ? b ) A secondary division of the mature egg . c ) One is an undeveloped primary oocyte that failed to mature . d ) There were originally four polar bodies and one disappeared e)The division of the first polar body into two polar bodies .arrow_forward
- In plant life cycles, (a) the first products of meiosis are gametes (b) spores are part of the diploid sporophyte generation (c) the embryo gives rise to a zygote (d) the first stage in the diploid sporophyte generation is the zygote (e) the first stage in the haploid gametophyte generation is the prothallusarrow_forwardWhat is the relationship between meiosis and fertilization?arrow_forwardwhat is the purpose of calcium ion in fertilization?arrow_forward
- in a mung bean, there is an attachment of the funiculus to the ovule. what do you think is the position of the ovule from which this seed is derived?arrow_forward1)Development is just another name for fertilization a)True b)False 4)A fertilized egg is the same as a zygote a)True b)Falsearrow_forwardа. basally adjacent to the embryo proper and involved in root pole formation. (A) protoderm (B) hypophysis (C) suspensor (D) ground meristemarrow_forward
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