The Reproductive Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36
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Date: 2022-04-04
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Comments and reviews: 8
EnviroHealth
I know this video is older, but I-d like to correct one part for anyone who is still watching:
3: 30 He mentioned that Spanish Moss is a lichen. Spanish moss (as depicted in the picture at 3: 38) is actually a Bromeliad which is the same taxonomic family as pineapples and succulents. The scientific name is Tillandsia usneoides.
Interestingly enough, this is a common mistake, as the species name -usneoides- means -to resemble usnea-.
Usnea IS in fact a lichen, otherwise known as the beard lichen, which is an amazing interesting fellowship between Cyanobacteria or Algae and Fungus.
I hope this helps someone!
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I know this video is older, but I-d like to correct one part for anyone who is still watching:
3: 30 He mentioned that Spanish Moss is a lichen. Spanish moss (as depicted in the picture at 3: 38) is actually a Bromeliad which is the same taxonomic family as pineapples and succulents. The scientific name is Tillandsia usneoides.
Interestingly enough, this is a common mistake, as the species name -usneoides- means -to resemble usnea-.
Usnea IS in fact a lichen, otherwise known as the beard lichen, which is an amazing interesting fellowship between Cyanobacteria or Algae and Fungus.
I hope this helps someone!
reply
Jocelyn
The examples of the ones that do not have a vascular system would be the liverworts, hornworts, and mosses but they have bizarre features for their reproduction systems but they need the requirement of water presented. They undergo gametophyte in which the sperm and egg meet and undergo mitosis then later releases spores into the air hoping it would fertilize another egg. - Great video!
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The examples of the ones that do not have a vascular system would be the liverworts, hornworts, and mosses but they have bizarre features for their reproduction systems but they need the requirement of water presented. They undergo gametophyte in which the sperm and egg meet and undergo mitosis then later releases spores into the air hoping it would fertilize another egg. - Great video!
reply
Colin
7: 11 it is haploid not diploid. I think the whole video needs some editing on haploid vs diploid generations. We need to be able to follow how genetic info is being passed on to better understand what's happening.
For instance, sporophytes are made of diploid cells, spores are haploid gametes that grow into haploid gametophytes.
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7: 11 it is haploid not diploid. I think the whole video needs some editing on haploid vs diploid generations. We need to be able to follow how genetic info is being passed on to better understand what's happening.
For instance, sporophytes are made of diploid cells, spores are haploid gametes that grow into haploid gametophytes.
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Colored
The animation of mosses really helped me understand how mosses reproduce! I had 2 labs and a whole lecture over this and the 3 minute clip of this taught me more than the 3 hours I spend in lab and lecture. Many thanks!
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The animation of mosses really helped me understand how mosses reproduce! I had 2 labs and a whole lecture over this and the 3 minute clip of this taught me more than the 3 hours I spend in lab and lecture. Many thanks!
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Jessica
ive watched this twice now and i cant get over the fact that the sperm cell stays on the screen the who time even thou it was suppose to combined into a zygote
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ive watched this twice now and i cant get over the fact that the sperm cell stays on the screen the who time even thou it was suppose to combined into a zygote
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Sydney
This is so amazing! As he was talking my thoughts actually started to align surrounding all the textbook stuff I've read - he makes it so easy to understand! :)
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This is so amazing! As he was talking my thoughts actually started to align surrounding all the textbook stuff I've read - he makes it so easy to understand! :)
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Storrey
Wait, at 5: 43 he says that the sporangium is filled with haploid spores, but when he goes into more detail about the process he calls them diploid spores.
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Wait, at 5: 43 he says that the sporangium is filled with haploid spores, but when he goes into more detail about the process he calls them diploid spores.
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chrystal
My biology teacher always plays this guy, when he just wants to shut us up. hahhaha lol. this is where I actually learnt science.
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My biology teacher always plays this guy, when he just wants to shut us up. hahhaha lol. this is where I actually learnt science.
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