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motikmotik
3 years ago
15

Explain the characteristics scientists use when observing organisms and placing them in the six kingdoms .

Biology
2 answers:
Leviafan [203]3 years ago
8 0

Answer:

The main basis of classification of living organisms are:

  • Cell type: whether prokaryote or eukaryote
  • Cell wall: present or absent and contents of cell wall (cellulose or noncellulose)
  • Body organization: unicellular, multicellular, tissue, organ, or organ system
  • Mode of nutrition: autotroph (chemosynthetic or photosynthetic) or heterotroph (saphrophyte, parasite, holozoic et cetera)
  • Reproduction: Sexual or asexual

Based on these observations the organisms are classified into 6 kingdoms namely:

  • Archaebacteria
  • Eubacteria
  • Protista
  • Fungi
  • Plantae
  • Animalia
JulijaS [17]3 years ago
6 0
Cell type – prokaryotic or eukaryoticcell structure – cell wallnutrition – autotrophic or heterotrophicbody type – unicellular or multicellular

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Answer:

A. Neurotransmitters can act as ligands.

B. Acetylcholine is a neurotransmitter. It can bind to an acetylcholine receptor on the surface of a cell. If this receptor is also a sodium channel, we would call acteylcholine a ligand and its receptor a ligand gated receptor.

Explanation:

Answer:

A. Neurotransmitters can act as ligands.

B. Acetylcholine is a neurotransmitter. It can bind to an acetylcholine receptor on the surface of a cell. If this receptor is also a sodium channel, we would call acteylcholine a ligand and its receptor a ligand gated receptor.

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MAKE SURE TO PUT IN YOUR OWN WORDS

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