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AlexFokin [52]
3 years ago
10

Help me in number 3. Please if for a test. Urgent!!

Biology
1 answer:
Westkost [7]3 years ago
3 0

Answer:

I think it's b.

Explanation:

You need decomposers to return the matter back into the ground.Which the food web starts all over again.

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Use the drop-down menus to complete each sentence.
Svetlanka [38]

Answer:

- <u>Eukaryotes</u> are organisms that contain more than one cell with membrane-bound organelles and a nucleus.

- Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as <u>prokaryotes</u>.

Explanation:

According to their structural and functional complexity, organisms can be classified into eukaryotes and prokaryotes.

  1. <em><u>Eukaryotic organisms</u></em><em> are formed by cells that have a true nucleus -where DNA is located- and specialized structures called organelles, with a system of endomembranes that compartmentalize the intracellular space. These organisms are usually pluricellular, given the ability of eukaryotic cells to group together to form tissues. </em>
  2. <em><u>Prokaryotic organisms</u></em><em> are single cells, lacking a nucleus - genetic material is scattered in the cytoplasm - and do not possess organelles.  The prokaryotic cells that form these organisms are incapable of binding together, so they do not form tissues.</em>

Some unicellular organisms are prokaryotic cells, like some parasitic microorganisms, such as amoebas.

3 0
3 years ago
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Can someone explain what's going on in the graph?
docker41 [41]
So as you see it’s going up on the x axis
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3 years ago
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What is a nondisjunction? what is a nondisjunction? an error in which a diploid cell or organism has an extra chromosome of one
disa [49]
Nondisjunction is the failure of one or more pairs of homologous chromosomes or sister chromatic. 
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3 years ago
Drag the labels to their appropriate locations on the concept map below to explore the links between antibiotic resistance, bina
Nataliya [291]
The correct sequence is:
a) Antibiotics: These antimicrobial drugs used to treat and prevent bacterial infections.

b) Antibiotic resistance: This sort of resistance occurs when bacteria are fully developed into the body and are able to defeat the drugs which designed to kill them. When certain bacteria become resistant, the antibiotics are unable to fight them, and hence they increase and affect the body.

c) Binary fission: Binary fission is a sort of asexual reproduction in prokaryotes such as bacteria. It is found in unicellular eukaryotes like Amoeba and Paramecium.
d) Conjugation: It is the transfer of genetic material between bacterial cells by the direct or bridge-like connection between cells.

e) Mutations: is a permanent alteration in the DNA sequence resulting in a gene, such that the sequence differs from the sequence found in human beings.

f) DNA replication: is the biological process that occurs in all living organisms to produce two identical replicas of DNA from a DNA molecule.

g) Genetic recombination: During this process, offspring are produced with the combinations of traits that are different from the traits found in either parent.

h) Genetic variation: It’s the variation in the DNA sequence in each of human genomes, making every human being unique in terms of hair color, skin color or the shape of their faces.<span>
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3 years ago
Which term is used to define substances that participate in chemical reactions?
Ilia_Sergeevich [38]
These substances are called reactants.
5 0
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