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The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.

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Answer:

Once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. Diffusion is limited by the surface area to volume ratio of the organism.

Explanation:

once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. diffusion is limited by the surface area to volume ratio of the organism.

Answer:

el el parrafo 3

Explanation:

ahi esta

Answer:

because of lack of vaccination

Explanation:

this occur mostly in Nigeria

Answer:

I hope this helps.

Explanation:

Answer:

cyanobacteria

Explanation:

The phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

Mitosis may be defined as the type of cell division in which two daughter cells are formed from a parental cell with the exact number of chromosomes.

In metaphase, the chromosome usually lines up in one plane and forms an equatorial plate in which they are attached to the spindle fiber through their centromere.

Therefore, the phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

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Answer:

6. UAA GUA UUC UGA GUC UCG AUG CCG

7. UGC CCG UAG GAC ACC CCC GGA

8. UCU GAC GUG UCU UUG AAA CGG

9. GAA ACU CCU GAG CGA GUC GAG

Explanation:

A = U

T = A

C = G

G = C

Answer:

they have different functions

Explanation:

the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors

Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.

Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.

For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.

Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.

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Answer:

Natural immunization

Explanation:

Answer:

The first one

Explanation:

(Plz give brainleist)

Answer:

Explanation:

c is wrong

Answer:

Organs which need alot of energy to function properly have a greater number of mitochondria

Explanation:

Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.

Answer:

Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.

Answer:

August 11, 2014 — Six years ago, the Norwegian coast guard filmed a Scottish fishing vessel riding gray swells, dumping 5 metric tons of dead fish back into the North Sea. Over the European Union catch quota, and so unable to keep all the fish they’d caught, the fishermen had to ditch some. To the Norwegians, who aren’t part of the EU and hold a strict discards ban, the waste was shocking.

When this news reached Dan Watson, a young British designer, it became the inspiration for SafetyNet, an ocean fishing net that allows certain fish to escape via lighted rings, offering more catch selectivity. The Scottish fishermen’s predicament, he believed, was driven by their lack of control. “There can be no villains, there can be no victims, there are just problems,” Watson says. “I started this project because I wanted to go some way towards solving that problem.”

Bycatch can result in overfishing, reduces the population of species that might already be endangered and, on the largest scale, interrupts food chains and damages whole ecosystems.

Watson joins a growing number of innovators designing more selective fishing gear to reduce bycatch — the unwanted fish, dolphins, whales and birds that get scooped up by longlines, gillnets and trawlers each year and then discarded. Globally, the amount of marine life that is wasted or unmanaged — which makes it potentially unsustainable — forms about 40 percent of the catch. “The way we catch now is to catch everything, decide what we want to keep, and discard the rest,” says Martin Hall, head of the bycatch program at the Inter-American Tropical Tuna Commission, which regulates tuna fishing in the eastern Pacific Ocean. Bycatch can result in overfishing, reduces the population of species that might already be endangered and, on the largest scale, interrupts food chains and damages whole ecosystems. It also amounts to an enormous waste of valuable fish protein.

Leatherback turtle caught in net

New fishing net designs aim to reduce bycatch — the unintented capture of small fish, turtles, dolphins, whales, birds and other ocean-going life. Photo by Michel Gunther/WWF-Canon.

To designers building better nets and lines, bycatch isn’t viewed as an inevitability, but as something we can phase out, piece by piece. It’s also seen as a battle that needs to be fought alongside fishermen, not against them.

Rethink the Game

Speaking from his trawler, the 45-foot Proud Mary, off the coast of Massachusetts, one such fisherman, Christopher Brown, says that over the years, fishermen have had to “rethink the game.” Brown operates a fishery that’s almost completely free of discards; is the board president of the Seafood Harvesters of America, an organization representing stewardship-minded fishermen; and has designed a squid net that reduces bycatch. The net contains an escape route at its base that exploits the bottom-dwelling behavior of unwanted flounder, encouraging them to flee the net through this gap. “We need to look at things entirely differently than we have in the last 30 years,” Brown says — and new gear is part of that equation. “It’s a matter of enlightened self-interest.”

Explanation:

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Answer:

11 chromosomes.......

The ozone depletion process begins when CFCs (chlorofluorocarbons) and other ozone-depleting substances (ODS) are emitted into the atmosphere. CFC molecules are extremely stable, and they do not dissolve in rain. After a period of several years, ODS molecules reach the stratosphere, about 10 kilometers above the Earth’s surface. CFCs were used by industry as refrigerants, degreasing solvents, and propellants.

Answer:

Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below). ... CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity

Answer:

is plant growth affected by temperature

Explanation:

Answer:

test hypothesis..........

Answer:

This one should be c. dust :)

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Explanation:

b

Answer:

I think it will option C

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Answer:

When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.

Answer:

if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.

Answer:

The onerous elements of organisms, like bones, shells, and teeth have a far better likelihood of changing into fossils than do softer elements. One reason for this can be that scavengers typically don't eat these elements. onerous elements conjointly decay additional slowly than soft elements, giving longer for them to be buried.

Explanation:

Answer:

The S phase and prophase

Explanation:

Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.

Ethical Guidelines for the Use of Animals in Research

Respect for animals' dignity.

Responsibility for considering options (Replace)

The principle of proportionality: responsibility for considering and balancing suffering and benefit.

Responsibility for considering reducing the number of animals (Reduce)

Answer:

Earth's shadow is bigger than the moon's.