Compare and contrast the mechanisms and adaptations that have evolved in THREE d
ID: 207445 • Letter: C
Question
Compare and contrast the mechanisms and adaptations that have evolved in THREE different organisms to carry out the processes of osmoregulation, digestion, circulation, and gas exchange. Explain how their particular method is either an advantage or how it limits them to a particular environment.
Choose one specific organism from group 1, one from group 2, and one from group 3 to compare and contrast. For example, if I chose Amphibia in group L, I might chose the poison arrow frog as my specific example to discuss as a representative of that phylum.
You may not write in complete sentences, bullet points only!
Group 1: Invertebrates
Group 2: Vertebrates
Group 3: Other
Porifera-sponges A
Agnatha (jawless fish) I
Bryophyta (mosses) P
Cnidaria-jellyfish B
Chondrichthyes (cartilaginous fish) J
Pteridophyta (ferns) Q
Platyhelminth-flatworm C
Osteichthyes (bony fish) K
Gymnosperms (conifers) R
Nematoda-roundworm D
Amphibia L
Angiosperms (flowering plants) S
Arthropoda-arthropods E
Reptilia M
Paramecium T
Mollusca-molluscs F
Aves (birds) N
Phaeophyta (brown algae) U
Annelid-segment worm G
Mammalia O
Euglena V
Echinodermata H
Fungi W
Bacteria X
Group 1: Invertebrates
Group 2: Vertebrates
Group 3: Other
Porifera-sponges A
Agnatha (jawless fish) I
Bryophyta (mosses) P
Cnidaria-jellyfish B
Chondrichthyes (cartilaginous fish) J
Pteridophyta (ferns) Q
Platyhelminth-flatworm C
Osteichthyes (bony fish) K
Gymnosperms (conifers) R
Nematoda-roundworm D
Amphibia L
Angiosperms (flowering plants) S
Arthropoda-arthropods E
Reptilia M
Paramecium T
Mollusca-molluscs F
Aves (birds) N
Phaeophyta (brown algae) U
Annelid-segment worm G
Mammalia O
Euglena V
Echinodermata H
Fungi W
Bacteria X
Explanation / Answer
Osmoregulation
In group 1, lets us consider porifera sponges Where the process of osmoregulation is very simple. The movement of water is unidirectional. It has a contractile vacuous which collects water and fluid for osmoregulation and it excretes at cellular level through diffusion.
In group 2, let us consider for reptilia
They don't need to drink water as it enter through the skin and in order to maintain osmoregulation , they have to dilute their urine. There is high level of passive diffusion of the ions
In group 3, let us compare with fungi, here the osmoregulation takes place by exchanging ions with the environment to maintain the balance.
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