Question

In: Biology

1. From a botanical standpoint, what do the prefixes “micro” and “mega” indicate? Remembering this will help you with the pine life cycle.

 

1. From a botanical standpoint, what do the prefixes “micro” and “mega” indicate? Remembering this will help you with the pine life cycle.

2. How would you distinguish between Cycadophyta and Coniferophyta?

3. How do humans use phylum Ginkgophyta?

Solutions

Expert Solution

Solution 1.

From a botanical standpoint, “micro” and “mega” indicate microspores and megaspores respectively

Microspores represent male gametophyte and Microsporangium is the sporangium where miscrospores are formed

Megaspore represent female gametophyte and Megasporangium is the sporangium where megaspores are formed

Solution2

Distinguish between Cycadophyta and Coniferophyta

Cycadophyta Coniferophyta
Leaves are compound Leaves needle like
Circinate vernation present No circinate vernation present
Palm-like in appearance Trees
Dioecious Monoecious
Small group of Gymnosperms Large group of Gymnosperms
Mucilage canals present No mucilage canals present
No resin canals present Resin canals present

Solution 3. Uses of phylum Ginkgophyta

  • Ginkgophyta represent only one plant- ginkgophyta biloba
  • It is living fossil
  • Used to treat altitude sickness
  • Treatment for blood disorders
  • Memory problems
  • Cardio protective
  • Rich in antioxidant- can be used to reducethe risk of cancer
  • Extracts are used in treatment of bladder infections
  • Improve cognitive function
  • Alleviate symptoms of anxiety
  • Used in treatment of Glaucoma

gladiator answered 1 year ago
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