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3 years ago

Decide whether each statement is a 'positive' or 'negative effect of deforestation.

Biology

1 answer:

Nikolay [14]3 years ago

7 0

Answer:

1) negative because it provides land for something and they need to take of trees maybe.

2) positive because that ends up in trees and they grow more

3) negative because it takes a lot of space so trees need to be taken off.

4) positive.

5) negative because the habitats of the animals are normally near trees

6) negative.

7) positive because it lets the trees grow better

8) positive because plant breath carbon dioxide.

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Earth has a great variety of surface features that are caused by weathering and erosion. Which of the following describes a chan

Sidana [21]

Answer:

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.

Weathering and erosion constantly change the rocky landscape of Earth.

Explanation:

HOPE IT HELPS. PLS MARK AS BRAINLIEST

4 0

3 years ago

A researcher found a method she could use to manipulate and quantify acetylation and methylation in embryonic cells in culture.

Gemiola [76]

Answer:a) decreased chromatin condensation

Explanation:

During eukaryotic cell division a chromatin becomes obvious and it is simply a mass of genetic material made up of DNA and proteins which condenses to form chromosomes.

The chromatin primarily function in the compression the DNA into a unit so compacted that will be so tiny and can fit within the nucleus.

Chromatin condensation is driven by condensins and interactions between histones.

Condensins however, are large protein complexes whose central role in cell division is chromosome organization and segregation.

Chemical manipulation as stated above is decreases the rate of chromatin condensation.

8 0

3 years ago

if a cell increases the activity of its actin severing proteins, will it lead in the short term to more or less actin polymer ma

marta [7]

More polymer will form if the concentration of free actin monomers is higher than the Cc at both the plus and minus ends.

Less polymer will form if the concentration of free actin monomers is lower than the Cc at both the plus and minus ends.

Actin polymerization encourages FAK and Src to activate small G proteins by signalling to GEFs and GTPases (e.g., Rho and Rac). The actomyosin network is then forced to develop as a result of G proteins' induction of cytoskeleton-regulating proteins.

What stops cells from forming actin polymers?

Actin monomer is sequestered by monomer-binding proteins, reducing its availability for polymerization. As a result, actin does not polymerize when monomer-binding proteins are present in stoichiometric levels.

Q. If a cell increases the activity of its actin severing proteins, will it lead in the short term to MORE or LESS actin polymer mass? Chose the most accurate answer.

Increased severing activity will result in LESS polymer under any conditions.

Increased severing activity will result in NO CHANGE in the total amount of polymer under any conditions. It simply results in a larger number of smaller filaments.

Increased severing activity will result in MORE polymer under any conditions.

If the concentration of free actin monomers is below the Cc for both the plus and minus ends, then MORE polymer will result. If the concentration of free actin monomers is above the Cc for both the plus and minus ends, then LESS polymer will result.

If the concentration of free actin monomers is above the Cc for both the plus and minus ends, then MORE polymer will result. If the concentration of free actin monomers is below the Cc for both the plus and minus ends, then LESS polymer will result.

To know more about actin, visit:

brainly.com/question/24173611

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4 0

1 year ago

In the guppie simulation, what happens to the brightest guppies when there are large numbers of predators?

jonny [76]

In the simulation, the brightness of the guppies is directly related to how fast they are consumed by predators. This phenomenon is explained simply and reflects natural selection. The brighter guppies are at a selective disadvantage due to the ease with which predators are able to spot them. The darker colored guppies are able to avoid predator better so they live fore a longer time.
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5 0

3 years ago

How does the thoracic cavity pressure determine if someone inhales or exhales

Nonamiya [84]

Answer:

Explanation:

During exhalation, the diaphragm also relaxes, moving higher into the thoracic cavity. This increases the pressure within the thoracic cavity relative to the environment. Air rushes out of the lungs due to the pressure gradient between the thoracic cavity and the atmosphere.

6 0

2 years ago