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2 years ago

Which scenario is a competitive network?

Biology

1 answer:

nika2105 [10]2 years ago

8 0

Answer:

Scenario I, Scenario II, and Scenario III are examples of competitive networks.

Explanation:

There are different examples of nets as interactions between species. Trophic net is a very common example of these interactions. Another one is the competitive network.

The competitive network refers to the competition for the same resource between different species in a community or ecosystem. When a resource is useful for two or more species, they compete to gain it.

The competitive network can be represented as arrows that indicate which is the dominant species over the other. This representation must be done with a minimum of two species interacting and indicating through the direction of the arrow, which species wins the competition.

There is a competitive hierarchy when there are more than two species, for example, species A, B, and C. Species A dominates over the other two, and species B dominates over species C. In these cases, the representation would be A --> B --> C. This reflects a transitive competitive network. Species A displaces species B and C, and species B displaces species C. The only species that can persist is A. This example can be extended to any number of species, which suggests that a hierarchy network does not promote biologic diversity.

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. excess water on the slides will boil during fixation. Why should you be careful . During theperformance of the simple staining procedure, you failed to heat fix your E. coli smear preparation.Upon microscopic examination, how would you expect this slide to differ from the correctly prepared slides? When heat fixing the.

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2 years ago

If the number of nitrifying bacteria decreased, what effect would this have on the nitrogen cycle and what type of compounds wou

ludmilkaskok [199]

If the number of nitrifying bacteria decreased, the nitrogen cycle would be stopped and the ammonia compounds would accumulate.

To add, the nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and marine ecosystems.

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2 years ago

Read 2 more answers

What type of protist is heterotrophic and includes species whose cells can come together to form a slug that moves to a new habi

Reil [10]

Answer: Fungus like protists are heterotrophic and feed on organic matter.

Cellular slime mould is a species of fungus like protists that form slug.

Explanation:

Fungus like protists are heterotrophic and the feed on organic matter and mostly unicellular.

Cellular slime mould are protists belonging to class Dictyostelia. They are heterotrophic and decomposers that live on organic matter. When there is deterioration condition, the cells migrates together to form slugs and move to form new habitat. Some of the cells form stalk and others form spores.

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2 years ago

Dentify the relationships between the zooxanthellae and the hard coral, the remora and the manta ray, the tiger shark and the gr

sergeinik [125]

Answer:

1. Mutualism

2. Mutualism (it was previously thought to be a case of commensalism)

3. Predation

4. Competition

Explanation:

1. Zooxanthellae and hard coral - Mutualism

These two organisms live in symbiosis. This means that both benefit each other. Zooxanthellae allow corals to gain energy through photosynthesis and, in turn, they receive important nutrients that are produced during the metabolism of the hard coral.

2. Remora and manta ray - Mutualism

Remoras and manta rays benefit each other. Remoras attach to manta rays mainly for transportation and feeding, but they also do it for protection. In turn, they make sure manta rays are clear from harmful bacteria and parasites. Several years ago, it was thought that manta rays didn't gain any benefit from remoras, so this was thought to be a case of commensalism. However, research has shown that they both benefit from each other. Therefore, this is also a case of mutualism.

3. Tiger shark and green sea turtle - Predation

In some areas (not everywhere) tiger sharks feed upon green sea turtles. For example, in Hawaii, have been observed to attack green sea turtles and feed on them. Researchers have spotted numerous sea turtles with characteristic tiger shark bites.

4. Dolphins and school of trevallies - Competition

Trevallies are large species of fish that feed on small schools of fish like dolphins. They both have their own predatory strategies that involve planning and gathering to catch large amounts of fish. Therefore, trevallies and dolphins compete for small schools of fish.

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2 years ago

Drinking alcohol can cause dehydration, which makes the blood hypertonic. Which option best describes the consequences of this h

julsineya [31]

Answer:

Hypertonic blood draws water out of the interstitial fluid, which makes the interstitial fluid hypertonic. This, in turn, draws water out of the cells.

Basically an hype tonic blood has high solute potential,( low water potential) compare with the surrounding plasma and the interstitial fluid. Thus the interstitial fluid is hypotonic to the blood.

Consequently,water with higher potential moves from the interstitial fluid medium into the blood by osmosis through the capillary endothelial. This raises the water potential of the blood, lowering the solute potential, thus making it hypotonic to the interstitial fluid; which is now hypertonic(lower water potential ,due to loss to the blood by osmosis).

Since the interstitial fluids is now hyper tonic to the surrounding cells, water moves from the hypo tonic surrounding cells through osmosis into the interstitial fluids. The sequence continues until a stable internal environment is achieved,

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2 years ago