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deff fn [24]
3 years ago
12

The first organisms on Earth were most likely today's:

Biology
1 answer:
kirill [66]3 years ago
6 0
I think its answer c . Bacteria
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In which kingdoms are all organisms multicellular? A. Animalia and Fungi B. Animalia and Plantae C. Protista and Fungi D. Protis
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<span>Remember that of the three Domains, only Eukaryota have multicellular organisms. AllEukaryotes have (or are) complex cells. Plantae, Animalia and Fungi are truemulticellular kingdoms. The various other Eukaryotic kingdoms are lumped under Protists. Hope this helps</span>
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True or false the majority of the water on earth is not part of the water cycle
Alenkinab [10]
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The Na⁺/Ca²⁺ exchanger, which couples the movement of Na⁺ down its electrochemical gradient with the movement of Ca²⁺ against it
ludmilkaskok [199]

Answer:

The Na⁺/Ca²⁺ exchanger, which couples the movement of Na⁺ down its electrochemical gradient with the movement of Ca²⁺ against its electrochemical gradient, is a(n) <u>symporter secondary active transport </u>because Ca²⁺ and Na⁺ move in different directions across the membrane.

Explanation:

The Na⁺/Ca²⁺ exchanger is a secondary active transport because it uses the energy of the Na⁺ that moves in favor of its electrochemical gradient to bring a Ca²⁺ ion against its electrochemical gradient inside the cell. This transport needs the help of a  symporter, which is a protein that moves two different ions in the same direction.

4 0
3 years ago
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What are the monomers of DNA( a polymer)?
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nucleotides, and the polymer i think ......

5 0
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On a trip to a wildlife sanctuary, Nathan found a piece of rotting log. He took a sample from the log to examine in his laborato
ladessa [460]

Answer: Fungi

Fungi is a group of organisms belonging to kingdom Fungi. These are eukaryotic organisms. They are saprophtic organisms, which means they drive their food and nourishment by decaying dead and decaying organisms. They cannot synthesize their own food by photosynthesis as they do not possess pigment chlorophyll like plants, which traps sunlight energy for photosynthesis. The cell wall of fungi is made up of chitin.

The organism feeding on the wooden log is fungus. They are able to degrade lignin component of the wood into simpler compound, which is used as a source of nourishment.

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3 years ago
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