BIOLOGY HIGH SCHOOL

Both Beggiatoa and the purple sulfur bacteria use H2S. These bacteria differ in that Beggiatoa A) Uses H2S for an energy source. B) Uses H2S for a carbon source. C) Uses light energy. D) Belongs to the gammaproteobacteria. E) Is a heterotroph.

Answers

Answer 1
Answer:

The right answer is A) Uses H2S for an energy source.

Beggiatoa is a bacterium that lives in sulphide-rich environments. They use H2S as a source of energy.

Purple sulfur bacteria, are also bacteria that depend on the presence of H2S but do not use it for the purpose of producing energy. They use it as the ultimate electron acceptor in its respiratory chain (instead of oxygen), since they are anaerobic bacteria.

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Which is an accurate description of the processes used to turn the DNA code of a gene into a protein?

Answers

Answer: Transfer RNA delivers specific amino acids to the ribosome, matching messenger RNA codons.

Explanation:
Well, it is more about RNA than DNA when we talk about using DNA code to code for a protein.

In the RNA (complementary of the DNA)has a codon the UAGC that codes for a specific type amino acid by being have a complementary anticodon. The "partnership" of these two creates chain of amino acid that become later a protein. 

I do not know if I answered your question correctly, as I do not know how far you went in the subject.

Plants and animals are both _____.a. eukaryotes
b. multicellular
c. motile
d. heterotrophs

Answers

Answer:

a. Eukaryotes, and b. multicellular.

Explanation:

Eukaryotic organisms are those organisms that have cells with membrane bound organells, such as nucleus, mitochondria, and glogi body.

Both plants and animals are multicellular (made up of more than one cell) eukaryotic organisms that belong to domain Eukarya.

However, plants are phototrophic organisms that make their own food, while animals are heterotropic that depend on other organisms for food. An another difference between plants and animals is motility as plants are generally non-motile, while animals are motile.

Thus, options (a) and (b) are the correct answers.

From these choices, plants and animals are both multicellular. Multicellular organisms are also eukaryotes.

Which of the following might be affected by the loss of a plant species?

Answers

the entire food chain could be affected because the grasshoppers have nothing to eat then the birds have nothing to eat cause the grasshoppers have nothing to eat and so on

Excessive nutrients in the Chesapeake Bay foster the growth of algae, which robs the aquatic life of sunlight and oxygen. The MAIN reason for the overabundance of nutrients is an increase in

Answers

The answer in agriculture.

In agriculture, fertilizers are commonly used. But when they reach the bay, they could be cause of escessive nutrients. Algae use the presence of increased nutrients and enhance their own growth. It is known that they produce an oxygen in the photosynthesis, so it is not a problem while they are still alive. But when these organisms die, their decomposition begins. For the process of decomposition, the oxygen is needed and ultimately it will be depleted from a body of water. This will lead to the death of aquatic animals that depend on oxygen.

Which solution would most likely cause a plant placed in it to become firmer and more rigid?

Answers

Answer:

Hypotonic solution.

Explanation:

Hypotonic solution is defined as a solution which has lower solute concentration with comparison to another solution of a cell.

The plant cell is takes up water from the outside of the cell where high water concentration is present so water is moves in of the cell with the help of osmosis process and start to become swell, but with the help cell wall which is present on cell prevents it from bursting when the plant cell is present in this solution (hypotonic solution).

So, if the plant cell is placed in a hypotonic solution it to become firmer and more rigid.

Answer:

A hypotonic solution

Explanation:

The Florida Everglades are one of the most diverse ecosystems in the United States and are home to many species of birds, reptiles, amphibians, and fish. Recently, scientists have investigated and determined that the population of pythons, which are from Asia, has increased greatly. What question is least likely to be asked based on these results?

Answers

This is recurring question. Since you didn't provide the choices I'll provide it including the correct answers based on the same question posted here before.

Options:
Are the pythons a new species?How can the python population be controlled?How quickly are pythons reproducing in the Everglades?How are the pythons affecting other animal populations?

The answer is "Are pythons a new species?"The Florida everglade is diverse in ecosystem, therefore, its obvious to have pythons in such an ecosystem.
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