Tiny air sacs in the lungs are destroyed, making breathing extremely difficult, is the disease called
O emphysema
chronic bronchitis
O coronary heart disease
o lung cancer

Answer:

11 chromosomes.......

Answer:

GUI is not a valid codon...

GCG: Alanine

CCA: Proline

Answer:

A fungal cell is an eukaryote with all intracellular, membrane bound organelles. A bacterial cell is basically a prokaryote with a nucleoid. The cell wall composition also varies. It is a lipopolysaccharide layer called peptidoglycan layer in bacteria whereas cell wall of a fungal cell contains complex polysaccharides called chitin and glucans. Bacteria are either autotrophic or heterotrophic whereas fungi are strictly heterotrophic. Bacteria reproduces asexually by binary fission whereas fungi can reproduce either by sexual or by asexual method. Dormant form of fungal cell are called conidiospore or basidiospore or zoospore or ascospore based on their location in hyphae and type of reproduction. In bacteria, dormant forms are called endospores.

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:

5

Explanation:

The object distance Is 20 I'm

The image distance is 6.666

Therefore the focal length can be calculated as follows

1/f = 1/20 + 1/6.66

= 6.66+20/133.2

= 26.66/133.2

1/f= 26.66/133.2

f = 133.2/26.66

= 4.99

= 5

Hence the focal length is 5

Answer: B

Explanation:

Answer:

C exposure to radioactive elements

Explanation:

The main concern of using nuclear power is the radioactive elements it creates. An example would be uranium.

Sure natural gas is bad for the environment but its no where near as harmful as exposure to radioactive

Drilling for oil does not release radioactive elements therefore exposure to radioactive elements can only be caused by nuclear power.

Answer:

The main environmental effects of deforestation and forest degradation include reduced biodiversity, the release of greenhouse gas emissions, forest fires, disrupted water cycles and increased soil erosion

Explanation:

These changes significantly differ but there are 3 important worldwide examples of deforestation: the Amazon rainforest, Indonesia and Borneo, and Africa.

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Deforestation has a major impact on the environment. Deforestation leads to global warming, emission of greenhouse gases, and loss of biodiversity.

Deforestation may be defined as the process of cutting down of trees and making the green land into desert form.

Deforestation makes the soil infertile which is responsible for the loss of biodiversity. As the number of trees declines, it affects the water cycle and rainfall activity. Greenhouse gases are emitted on a large scale due to the reduction in trees which are responsible for the cause of global warming.

Therefore, deforestation has a major impact on the environment. Deforestation leads to global warming, emission of greenhouse gases, and loss of biodiversity.

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Answer:

In nature, populations are usually evolving. The grass in an open meadow, the wolves in a forest, and even the bacteria in a person's body are all natural populations. And all of these populations are likely to be evolving for at least some of their genes. Evolution is happening right here, right now!

To be clear, that doesn't mean these populations are marching towards some final state of perfection. All evolution means is that a population is changing in its genetic makeup over generations. And the changes may be subtle—for instance, in a wolf population, there might be a shift in the frequency of a gene variant for black rather than gray fur. Sometimes, this type of change is due to natural selection. Other times, it comes from migration of new organisms into the population, or from random events—the evolutionary "luck of the draw."

I hope this helps a little bit.

Answer:

With incomplete dominance, a cross between organisms with two different phenotypes produces offspring with a third phenotype that is a blending of the parental traits. It's like mixing paints, red + white will make pink.

Explanation:

Answer:

Hi there!

I am Pandora, and I will be trying to help you today. :)

Ocean Acidification Evidence:

- Growing difficulty in absorbing carbon dioxide

- Difficult for some species to make shells

- Large concentration carbonic acid

- Organisms more prone to illness

Ocean Warming Evidence:

- Melting of glaciers and ice caps

- Expansion of ocean volume

I hope this helped! I am so sorry if I made a mistake.

Good luck and have a fantastic day! :)

Best wishes,

      Pandora

Explanation:

Answer:

DNA replicates before a cell divides to give a complete set of genetic instructions to each daughter cell.

Explanation:

Answer:

RNA

Explanation:

Uracil is for RAN and Thymine is for DNA

Answer:

High amounts of mitochondria are found in skeletal muscle cells, as well as liver cells. On the other hand, skin cells have a small amount of mitochondria.

Answer:

Rare bleeding disorder due to inherited deficiencies in co-agulation factor.

Explanation:

Answer:

Phonograph

Explanation:

A phonograph, in its later forms also called a gramophone or since the 1940s called a record player, is a device for the mechanical recording and reproduction of sound

Answer:

This one should be c. dust :)

Answer:

el el parrafo 3

Explanation:

ahi esta

Answer:

D. Meiosis forms four cells all with different genetic material

Explanation:

They are haploid cells and each cell only had one set of chromosomes. Meiosis results in variation.

Answer:

The short answer is, yes and no. There's only a handful of animals like mammals or birds that have a parasitic relationship; one such is the Vampire Bat, yes, although one could argue it could also be considered a form of hunting too.

Explanation:

Answer:

mammals. are essentially all insects and their allies which live on the skin or in its superficial layers. The latter consist of one-celled animals or protozoa, and vari- ous types of parasitic worms, as well as certain insects and their allies.

Answer:

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

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:

Hope it helps

Answer:

In the late 16th century several Dutch lens makers designed devices that magnified objects, but in 1609 Galileo Galilei perfected the first device known as a microscope. Dutch spectacle makers Zaccharias Janssen and Hans Lipperhey are noted as the first men to develop the concept of the compound microscope.

Answer:

Natural immunization

Explanation:

Answer:

I think, the egg. Not so sure about it.

Eggs come from chickens and chickens come from eggs: that’s the basis of this ancient riddle. But eggs – which are just female sex cells – evolved more than a billion years ago, whereas chickens have been around for just 10,000 years. So the riddle is easily solved…or is it?

Taken at face value, there is no doubt that the egg came before the chicken. We tend to think of eggs as the shelled orbs laid by birds from which their chicks hatch – unless we eat them first. But all sexually reproducing species make eggs (the specialised female sex cells). That’s 99.99 per cent of all eukaryotic life – meaning organisms that have cells with a nucleus, so all animals and plants, and everything but the simplest life forms.

We don’t know for sure when sex evolved but it could have been as much as 2 billion years ago, and certainly more than 1 billion. Even the specialised sort of eggs laid by birds, with their tough outer membrane, evolved more than 300 million years ago.

As for chickens, they came into being much later. They are domesticated animals, so evolved as the result of humans purposefully selecting the least aggressive wild birds and letting them breed. This seems to have happened in several places independently, starting around 10,000 years ago.

The wild ancestor of chickens is generally agreed to be a tropical bird still living in the forests of Southeast Asia called the red junglefowl –  with other junglefowl species possibly adding to the genetic mix. From these origins, humans have carried chickens around the world over the past two millennia or more.

So, eggs dramatically predate chickens. But to be fair to the spirit of the riddle, we should also consider whether a chicken’s egg predates a chicken. As humans consistently chose the tamest red junglefowls and bred them together, the genetic makeup of the resulting birds will have shifted. At some stage during this domestication process the red junglefowl (Gallus gallus) evolved into a new subspecies, Gallus gallus domesticus, AKA the chicken.

In practice, it is impossible to pinpoint the moment when this happened. But in theory, at some point two junglefowl bred and their offspring was genetically different enough from the species of its parents to be classified as a chicken. This chicken would have developed within a junglefowl egg and only produced the very first chicken’s egg on reaching maturity. Looked at this way, the chicken came first.

Answer:

Yes

Explanation:

A tissue culture is a growth of cells outside of the organism on a nutrient medium. What type of cell division, mitosis or meiosis, is involved in tissue culture? Mitosis. Give one other application of tissue culture apart from skin grafting.

Answer:

It can be a number of factors that can cause a population to grow. It can depend based on the birth rate, death rate, immigration, and emigration of the species. Additionally, it can also be how well the species adapts to it's environment.

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When two bodies with different temperatures come into thermal contact, they exchange heat energy until they attain thermal equilibrium, at which point the cold body warms up and the hot body cools down.

The process by which heat is transmitted from an object's hotter end to its colder end is known as conduction.

The term "thermal conductivity" refers to an object's capacity to transfer heat, and it is represented by the letter k. Heat naturally moves in the direction of a temperature gradient.

Thermal conduction is the term used to describe the flow of energy (heat) caused by temperature variations between nearby body parts.

The kinetic energy of the atoms in hot bodies is higher than that of the atoms in cold bodies.

The higher kinetic energy atoms attempt to move and collide with the lower kinetic energy atoms in order to preserve thermal equilibrium. As a result, heat can be transferred from a hot body to a cold body.

Thus, temperature change always move from regions of hot to regions of cold.

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Answer:

The first one

Explanation:

(Plz give brainleist)

Answer:

Explanation:

c is wrong