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4 years ago

PLS HELP!!! BRAINLIEST TO FIRST RIGHT ANSWER

Biology

2 answers:

stealth61 [152]4 years ago

5 0

Answer:

The right option is B) the total variety of organisms on Earth

Explanation:

lys-0071 [83]4 years ago

4 0

The right option is; B) the total variety of organisms on Earth

The total variety of organisms on Earth explains biodiversity

Biodiversity is the variety and variability of all species (different plants, animals and microorganisms) from all sources (marine, terrestrial and other aquatic ecosystem) on earth or within a particular region. Biodiversity involves genetic diversity, species diversity and ecosystem diversity which all functions together to form the complexity of life on earth.

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Describe several functions of the circulatory system.

VashaNatasha [74]

Answer:

Explanation:

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This system is responsible for the transport of gases, blood and nutrients to all the parts of the body. It helps in maintaining the homeostasis of the body by stabilizing the pH, body temperature and fighting the diseases. Also maintains the balance of hormones.

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3 years ago

All of the following statements regarding the pathogens that cause tetanus, anthrax, and botulism are correct except:

Vladimir [108]

Answer:

b. all three pathogens are obligate anaerobes.

Explanation:

Tetanus is caused by an exotoxin produced by the bacterium Clostridium tetani, which is normally found in the soil, although it may be present in the intestines of mammals. It is an anoxic and spore-forming bacteria. It enters the body through wounds or deep punctures, finding in the wound the anoxic conditions to germinate its spores, producing its potent toxin.

Anthrax is caused by the bacterium Bacillus anthracis, which is a stationary and endospore-forming bacteria that is resistant to high temperatures and chemicals. It is a strictly aerobic bacterium and can be found naturally in the soil. Both animals and humans can breathe or ingest spores of this bacterium by consuming meat or contaminated water. When spores get into the body, their turn into active cells and produce exotoxins

Botulism is caused by the pathogen Clostridium botulinum, a strict anaerobic bacillus, producing endospores and 8 different types of toxins. Being a soil-borne bacterium, it usually appears in the food of animal and vegetable origin.

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4 years ago

How can one wrong base pair impact a whole organism?

Irina18 [472]

Answer:

An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation. Without modification, growth could not occur. i hope this help

Explanation:

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How are quasars created?

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4 years ago

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Please help answer the question depicted above (the subject is earth science)

e-lub [12.9K]

#1 should be your answer!

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3 years ago