10 pts Question 4 What are some of the advantages of developing tracheids? Selec

Question

10 pts Question 4 What are some of the advantages of developing tracheids? Select all that apply D Ability to transport water and nutrients greater distances Provide structural support so the plant can grow more They are resistant to droughts They do not need water in order to reproduce D Question 5 10 pts Which of the following adaptations are present in bryophytes AND allowed them to colonize terrestrial environments. Select all that apply Presence of true leaves, roots and stems improving transport D A dominant gametophyte generation that is photosynthetic Associating with fungi to increase nutrient absorption Specialized cells that absorb and conduct water A water-tight cuticle to prevent water loss

Explanation / Answer

4. B and C

Trachieds provide great structural support due to hard lignified cell walls. Trachieds have higher surface area to volume ratio they can support flow of water through adheson forces when respitration is not occuring hence they help in combating the plant in drought stress.

5. B and E

Bryophytes have a cuticle layer which enables them to save water in terrestrial environment and a gametophytic photosyntheitc generation is dominant. Hence they had alteration of generation. Bryophytes lack vascular system for transport and they are devoid of true leaf stem and roots. Hence they grow in wet climates.

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