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klio [65]
3 years ago
13

In any food chain or web, the original source of energy is _______. the sun. Earth. the producers.

Biology
1 answer:
AfilCa [17]3 years ago
8 0
The sun because of photosynthesis in plants, then herbivores who eat plants then the carnivores who eat the herbivores who ate the plants.
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Is the lytic vacuole in a eukaryotic cell, prokaryotes, or both?
IgorLugansk [536]
Eukaryotic but plant specialized
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2 years ago
What is chordate and give example of chordate
GrogVix [38]

Answer:

You either are referring to the fish Chordate, or the animal classification. In the case of the classification it is literally any animal that has developed any sort of dorsal fin, for example some snakes can fall under this classification.

7 0
3 years ago
When the comb jelly, Mnemiopsis leidyi, was introduced into the Black Sea, its population exploded to 500 comb jellies per cubic
nikitadnepr [17]

The answer is invasive species.


Invasive species are species that are not native to specific ecosystem, but they have a capability to spread widely through the ecosystem, This way they can threaten native species of the ecosystem or cause environmental harm. 

<span>After being introduced into the Black Sea, they greatly affect local ecosystem. In the new area, they have no natural predators and are able to spread. If they spread beyond the area they are introduced, they become invasive species which can overgrow native biotopes and are a great threat to the local biodiversity. This could lead to the extinction of some native species.</span>

7 0
3 years ago
Which of the following events normally activates a GTP-binding protein?a).GTP hydrolysis by the protein Activation of an upstrea
olya-2409 [2.1K]
<h3><u>Answer;</u></h3>

b). Activation of an upstream guanine nucleotide exchange factor

<h3><u>Explanation</u>;</h3>
  • <em><u>When a ligand activates the G protein-coupled receptor, it induces a conformational change in the receptor that allows the receptor to function as a guanine nucleotide exchange factor (GEF) that exchanges GDP for GTPthus turning the G protein-coupled receptor on.</u></em>
  • The activated G-protein then dissociates into an alpha (G-alpha) and a beta-gamma complex.
8 0
3 years ago
Dna codes for the sequence of amino acids in the primary structure of a protein, but not for sugars or lipids. This is because?
s2008m [1.1K]

Proteins are the main structural and functional components of cells.

Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid. The mRNA sequence is thus used as a template to assemble in order the chain of amino acids that form a protein.

The sequence of a protein is determined by the DNA of the gene that encodes the protein change in the gene's DNA sequence may lead to a change in the amino acid sequence of the protein. The sequence of amino acids of a protein determines protein shape, since the chemical properties of each amino acid are forces that give rise to intermolecular interactions to begin to create secondary structures, such as α-helices and β-strands.

To learn more about amino acid , here

brainly.com/question/14583479

#SPJ4

6 0
11 months ago
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