How are antiviral drugs used? Pls I need this for my midterm

Answer: The relationship between the Earth, moon, and sun during a solar and Lunar eclipse is Lunar eclipses only happen once the Moon is in the opposite direction of the Sun in the sky, a montly occurence, which is known as a full moon.

Explanation: Once the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When this happens, Earth passes directly between the Sun and the Moon, which causes its shadow to create a lunar eclipse.

Answer:

during a luner eclipse the earth comes between the sun and the sun and the moon blockimg the sunlight falling on the moon.

Answer:

_________

Explanation:

Because a stationary front marks the boundary between two air masses, there are often differences in air temperature and wind on opposite sides of it. The weather is often cloudy along a stationary front, and rain or snow often falls, especially if the front is in an area of low atmospheric pressure.

Answer:

evolution is change over a period of time

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Answer:

C. how close earth is to the sun

Answer:

C

Explanation:

Answer:

ALS causes the motor neurons to gradually deteriorate, and then die. Motor neurons extend from the brain to the spinal cord to muscles throughout the body.

Answer:

yy

Explanation:

it can only be yy because you need 2 recessive genes to show a recessive trait.

A plant with Yy genes could pass the recessive genes on, but would still show the dominant trait.

The possible genotype of the green offspring is yy, i.e., recessive one and will express only in absence of dominant allele.

In a broad sense, the word "genotype" refers to an organism's genetic makeup; in other words, it describes an organism's entire set of genes.

In a narrower sense, the term can refer to the alleles, or variant forms of a gene, that an organism carries.

A genotype is a classification of the type of variant found at a specific location (i.e., a locus) in the genome.

Symbols can be used to represent it. For example, the letters BB, Bb, bb could be used to represent a specific variant in a gene.

In the given scenario, Y is dominant allele which will express in combination with y means the recessive one.

Thus, for expressing the green allele, it should be yy.

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Answer:

Explanation:

1st one

Answer:

In this problem, there is no uncertainty abt the genotype of either parent. A parent of blood type AB has the co-dominant IA and IB alleles. A parent of blood type O is homózygous recessive for the i allele.

The Punnett square for their offspring is shown to the right. The genotypes of their offspring could be either IAi or IBi. Their children could be in blood groups A or B, but not AB or O.

Explanation:

Most-likely the third one.

Answer:

If i am supposed to choose more than one, i would say that plants, animals and bacteria are biotic factors.

Explanation:

A biotic factor is a living organism that shapes its environment.

Answer:

it would be 60

Explanation:

because if haploid cells double the amount of chromosomes then diploid would do the opposite

Answer:

So that in a guinea pig cross in the offspring the recessive trait —long hair— can be observed in 25%, the most probable genotype of the parents is heterozygous Ss.

Explanation:

In guinea pigs, for the characteristic hair length, short hair is the dominant allele and long hair is the recessive one.

In order for 25% of the offspring to express the recessive characteristic, the parents must have a recessive genotype, which can be seen in Punnett's Square:

P: Ss X Ss

Alleles     S     s

S             SS   Ss

s             Ss    ss

Where the offspring is:

According to this, heterozygous parents for the characteristic long hair in guinea pigs have a 25% chance of having offspring with long hair.

Answer:

Milk, Leather, Paper, Cardboard

Explanation:

Milk, leather, paper, and cardboard all come from natural resources for the largest part:

Milk - Cows

Leather - Animal hide

Paper - Trees

Cardboard - Recycled paper

All of the mentioned are renewable because cows can breed, hide can be found on many animals, trees easily grow everywhere, and cardboard is made from recycled paper (which comes from trees).

Uranium, tin, iron, plastic, steel, and gold aren't renewable and (most of them) do not come from natural resources. Uranium is rare and only found in a limited source around the world, as well as other metals (tin, iron, steel, gold). As for plastic? Plastic is not natural nor renewable because it's created by man. All of the above mentioned (besides the answer) also takes thousands of millions of years to degrade naturally.

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Answer: Art will help with history by showing the history of art and athlete might help use the art of movement and citizen art will help find the citizen in you.

Explanation:

Are wild horses truly “wild,” as an indigenous species in North America, or are they “feral weeds”—barnyard escapees, far removed genetically from their prehistoric ancestors? The question at hand is, therefore, whether or not modern horses, Equus caballus, should be considered native wildlife.

The question is legitimate, and the answer important. In North America, the wild horse is often labeled as a non-native, or even an exotic species, by most federal or state agencies dealing with wildlife management, such as the National Park Service, US Fish and Wildlife Service, and the Bureau of Land Management. The legal mandate for many of these agencies is to protect native wildlife and prevent non-native species from causing harmful effects on the general ecology of the land. Thus, management is often directed at total eradication, or at least minimal numbers. If the idea that wild horses were, indeed, native wildlife, a great many current management approaches might be compromised. Thus, the rationale for examining this proposition, that the horse is a native or non-native species, is significant.

The genus Equus, which includes modern horses, zebras, and asses, is the only surviving genus in a once diverse family of horses that included 27 genera. The precise date of origin for the genus Equus is unknown, but evidence documents the dispersal of Equus from North America to Eurasia approximately 2–3 million years ago and a possible origin at about 3.4–3.9 million years ago. Following this original emigration, several extinctions occurred in North America, with additional migrations to Asia (presumably across the Bering Land Bridge), and return migrations back to North America, over time. The last North American extinction probably occurred between 13,000 and 11,000 years ago (Fazio 1995), although more recent extinctions for horses have been suggested. Dr. Ross MacPhee, Curator of Mammalogy at the American Museum of Natural History, and colleagues, have dated the existence of woolly mammoths and horses in North America to as recent as 7,600 years ago. Had it not been for previous westward migration, over the 2 Bering Land Bridge, into northwestern Russia (Siberia) and Asia, the horse would have faced complete extinction. However, Equus survived and spread to all continents of the globe, except Australia and Antarctica.

In 1493, on Columbus’ second voyage to the Americas, Spanish horses, representing E. caballus, were brought back to North America, first in the Virgin Islands, and, in 1519, they were reintroduced on the continent, in modern-day Mexico, from where they radiated throughout the American Great Plains, after escape from their owners or by pilfering (Fazio 1995).

Critics of the idea that the North American wild horse is a native animal, using only selected paleontological data, assert that the species, E. caballus (or the caballoid horse), which was introduced in 1519, was a different species from that which disappeared between 13,000–11,000 years before. Herein lies the crux of the debate. However, neither paleontological opinion nor modern molecular genetics support the contention that the modern horse in North America is non-native.

Equus, a monophyletic taxon, is first represented in the North American fossil record about four million years ago by E. simplicidens, and this species is directly ancestral to later Blancan species about three million years ago (Azaroli and Voorhies 1990). Azzaroli (1992) believed, again on the basis of fossil records, that E. simplicidens gave rise to the late Pliocene E. Idahoensis, and that species, in turn, gave rise to the first caballoid horses two million years ago in North America. Some migrated to Asia about one million years ago, while others, such as E. niobrarensis, remained in North America.

Answer:

C, brainliest plz??

Explanation:

Answer:

The insect species being studied has three pairs of homologous chromosomes. The first two pairs are autosomes; the last pair are sex chromosomes. Sex determination is the same as in humans (XX=female, XY=male).

Explanation:

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Answer:

C. The pancreas triggers the development of secondary sex characteristics.

Explanation:

y e s

Answer:

The percentage (%) of the alleles that code for this trait in the population will increase, as more individuals are born with the trait.

Explanation:

The more individuals get born expressing the trait, the higher its frequency gets in the population. By generation, there are more individuals carrying the allele for the advantageous trait. These individuals reproduce and increase the probabilities of the progeny to inherit the mentioned allele. When this sequence keeps occurring in the population over many generations, the allele percentage will increase. On the other hand, the other allele or alleles will decrease. Probably, if there are no changes that might influence or affect this pattern, the alleles for the advantageous trait will fixate, while the other allele might get lost.

Answer:

A hydrogen bond is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Answer:

Griffith's Experiment was an experiment done in 1928 by Frederick Griffith. It was one of the first experiments showing that bacteria can get DNA through a process called transformation. ... In this experiment, bacteria from the III-S strain were killed by heat, and their remains were added to II-R strain bacteria

Answer:

Circulatory system

Explanation:

It is the body's delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.

Answer:

blood

Explanation:

I took the test on edg.

Answer:

Heroin

Explain:

Nucleic acids. It is this becasue In my science call today they said this

Answer:

C. Large supermarket chains can negotiate prices because they have such a strong presence in the agricultural community. Im sorry no one answers these

An unidentified plant produces spores, has many cells, but does not have true leaves. It is a fern or the angiosperms. Thus, option C is correct.

Angiosperms, that are also known as flowering plants, have “seeds” that are sealed off within an “ovary”, while gymnosperms do not have fruits or flowers and have uncovered seeds on the surface of leaves. Seeds of gymnosperms are often arranged as “cones”.

The features and characteristics that distinguish angiosperms from gymnosperms are fruits, flowers, and “endosperm” in the seeds. Examples of “Angiosperms” are “monocots” like orchids, lilies, agaves, grasses and dicots like, peas, roses, sunflowers, maples and oaks. “Gymnosperm” examples include “non-flowering evergreen” trees like pine, fir and spruce.

Therefore,An unidentified plant produces spores, has many cells, but does not have true leaves. It is a fern or the angiosperms. Thus, option C is correct.

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Answer:

it belongs to the Eukarya domain

Explanation:

it has both plant and animal characteristics

Answer:

ecosystems

Explanation:

The resource that the National Park Service manages is wildlife refuges. Details about wildlife can be found below.

Wildlife refers to living organisms or animals that are not domesticated and lives in their natural habitat.

In their natural habitats, these wildlife animals are being killed discriminately to the point of extinction.

This led to the development of national park reserves that are responsible for the management and safety of wildlife animals.

Therefore, the resource that the National Park Service manages is wildlife refuges.

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Lipases are enzymes that lead to the hydrolysis of lipids.