Answered: Which one of the following statements…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Which one of the following statements about root hairs is CORRECT?

Select one:

a. They are found in the zone of cell elongation and help the root to fix nitrogen.

b.They are found in the root cap and help the root sense gravity.

c.They are found in the zone of cell division of the root and help anchor the plant in the soil.

d.They are found in the root apical meristem and help the root to absorb water.

e.They are found in the zone of cell differentiation in the root.

Which of the following best describes the route to fruit formation in flowering plants?

Select one:

a. 1) pollination, 2) double fertilization, 3) embryo develops, 4) ovary matures, 5) ovule matures.

b. 1) pollination, 2) germination of pollen, 3) endosperm develops, 4) ovule develops.

c. 1) pollination, 2) endosperm develops, 3) embryo develops, 4) ovule matures.

d. 1) pollination, 2) fertilization, 3) embryo develops, 4) ovary matures.

e.1) pollination, 2) fertilization, 3) germination of pollen, 4) ovule matures, 5) embryo develops.

Which of the following is most likely to happen if the amount of pollen produced by conifers were to decrease significantly?

Select one:

a.There would be no effect on seed production because spore dispersal can compensate for the reduction in the amount of pollen produced.

b.There would be no effect on seed production because co-evolved pollinators would still be able to transfer pollen from the male cones to the appropriate female cones.

c.There would be a significant negative effect on the viability of seeds because double fertilization could not occur, so there would be no food available for the growing embryo.

d.There would be a decrease in the number of seeds produced because the chances of pollen reaching a female cone of the same species would be reduced.

e.There would be a significant decrease in the genetic diversity of embryos, but little effect on the number of seeds as only one pollen grain is necessary to fertilize a single female cone.

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