Which phrase best describes the side of the moon that faces the Earth?

Question 5 options:

We always see random sides of the moon.


We always see the left side of the moon.


We always see the right side of the moon.


We always see the same side of the moon.

Answer:

'Prion' is a term first used to describe the mysterious infectious agent responsible for several neurodegenerative diseases found in mammals, including Creutzfeldt-Jakob disease (CJD) in humans.

Explanation:

The term to describe a mutant viral protein without a genetic code that can cause disease is a "prion." Prions are abnormal forms of proteins that can induce misfolding of normal proteins, so option a is correct option.

The misfolded prion protein can convert normal proteins of the same type into the abnormal misfolded form of protein, leading to a chain reaction and accumulation of misfolded proteins. This can cause damage to brain tissue and result in the characteristic symptoms associated with prion diseases, which include changes in behavior, neurological dysfunction, and ultimately, severe neurological degeneration. so option a is correct option.

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complete question is below

What’s the term to describe a mutant viral protein without a genetic code that can cause disease?

A. prion

B. virion

Answer:

Facilitated diffusion require no energy and travels down the gradient of concentration. On the other hand, active transport takes energy and travels up the gradient of concentration.

Hope this helps! Have a great day!!

Answer: Yes

Explanation: Monocots produce one cotyledon, while dicots produce two. Because seeds are reproductive structures and thus important to a species' survival, plants have evolved many mechanisms to ensure their survival. One such mechanism is seed dormancy. Dormancy comes in two forms: seed coat dormancy and embryo dormancy

Answer:Plants that reproduce by seeds. Seed plants have special structures on them where male and female cells join together through a process called fertilisation. After fertilisation, a tiny plant called an embryo is formed inside a seed.

Answer:

B) Meiosis

Explanation:

Meiosis allows for genetic differences between parents and offspring.Fertilization would result in a zygote with twice as many chromosomes as the parents.

Answer:

The answer is B.

Explanation:

Took a Quiz on it.

Answer: A. Recognizing antigens

Explanation:

Antigens are anything that causes an immune response. Antigens can be entire pathogens, like bacteria, viruses, fungi, and parasites, or smaller proteins

The two pieces of evidence that support the theory of the expanding universe are the red shift of light from distant stars and the existence of cosmic background radiation.

The correct answer is option B.

1. Red shift of light from distant stars: The observation of redshift in the light coming from distant galaxies provides evidence for the expansion of the universe. Redshift occurs when the light waves from an object moving away from an observer are stretched, causing a shift towards longer wavelengths. This phenomenon is consistent with the Doppler effect, where the wavelength of light appears to stretch as the source moves away. The redshift of light from distant stars indicates that galaxies are moving away from us and from each other, supporting the idea that the universe is expanding.

2. Existence of cosmic background radiation: The discovery of cosmic background radiation further supports the theory of the expanding universe. Cosmic background radiation is a faint, uniform microwave radiation that permeates the entire universe. It is believed to be residual radiation from the Big Bang, the initial event that is thought to have initiated the expansion of the universe. The presence of cosmic background radiation provides strong evidence for the hot, dense early stages of the universe and its subsequent expansion.

Based on the information provided in the diagram, it is not possible to determine the identity or nature of the celestial objects labeled X. The diagram only represents the expansion of the universe over time and does not provide specific details about individual celestial objects.

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Answer:

Justin Trudeau

Explanation:

Deputy Prime Minister of Canada

Answer:

The correct answer is - a shift from individual to collect farms

Even though it may seem that the collectives are advantageous in the agriculture, we have to take into consideration that is was a socialist system, so the collectives were operating in different manner. When people had their own farms, they were producing enough food for themselves, and maybe something for sale/trade, but in accordance to their needs and circumstances, but when the collective farms were introduced, it all changed. The people were no more able to produce what they want and need, but the government officials were doing that, by creating annual planing about what should be farmed, in which way, and in what amount, and that caused huge problems with lack of food, because the agriculture is very unpredictable, and on top of that, it is practically impossible to create an accurate plan for hundreds of million of people.

Complete question: PUNNETT SQUARE CROSSES

1. Set up and complete Punnett squares for these crosses (remember Y = yellow, y = blue):

a. YY and Yy

b. YY and yy

2. Answer these questions: a. What are the resulting phenotypes? b. Are there any blue kernels? c. How can you tell whether or not there are blue kernels?

3. Set up and complete a Punnett square for a cross of two of the F1 from Step 1 (above).

4. Answer these questions: a. What are the genotypes of the F2 generation? b. What are their phenotypes? c. Are there more or fewer blue kernels than in the F1 generation?

5. Identify the four possible gametes produced by the following individuals (S = smooth, s = wrinkled):

a. YY Ss

b. Yy Ss

Punnett squares are used to get the genotypic and phenotypic frequencies among the progeny produced from a cross. Punnett squares and answers below.

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

In the exposed example,

Diallelic genes that codes for color

Y = yellow ⇒ dominant allele

y = blue ⇒ recessive allele

We will assume complete dominance, meaning that genotypes with at least one dominant allele will express yellow.

1)

a- Cross 1

Parentals)   YY   x    Yy

Gametes) Y   Y      Y   y

Punnett square)      Y        Y

                       Y     YY      YY

                        y     Yy      Yy

F1) Genotype

1/2 = 50% of the progeny is expected to be homozygous dominant, YY

1/2 = 50% of the progeny is expected to be heterozygous, Yy

   Phenotype

100% of the progeny is expected to be yellow.

b- Cross 2

Parentals)  YY   x    yy

Gametes) Y     Y     y    y

Punnett square)      Y        Y

                       y     Yy     Yy

                        y    Yy      Yy

F1) Genotype

100% of the progeny is expected to be heterozygous, Yy

   Phenotype

100% of the progeny is expected to be yellow.

2)

a. What are the resulting phenotypes? Only yellow kernels

b. Are there any blue kernels? No

c. How can you tell whether or not there are blue kernels?

Blue is the recessive phenotype for kernels. Assuming complete dominance, since all genotypes are expected to carry at least one dominant allele, all the F1 kernels are yellow.  

3) Let us cross two heterozygous individuals from the F1

Parentals)  Yy   x    Yy

Gametes) Y    y     Y    y

Punnett square)     Y        y

                       Y    YY     Yy

                        y    Yy      yy

F1) Genotype

1/4 = 25% of the progeny is expected to be homozygous dominant, YY

1/2 = 50% of the progeny is expected to be heterozygous, Yy

1/4 = 25% of the progeny is expected to be homozygous recessive, yy    

   Phenotype

75% of the progeny is expected to be yellow.

25% of the progeny is expected to be blue.

4)

a. What are the genotypes of the F2 generation?

- 25% YY (homozygous dominant)

- 50% Yy (Heterozygous)

- 25% yy (Homozygous recessive)

b. What are their phenotypes?

- 75% yellow kernels

- 25% blue kernels

c. Are there more or fewer blue kernels than in the F1 generation?

More. Blue kernels appeared in the F2.

5. Assuming independent genes, the resulting gametes after meiosis are as follows

                        Gametes

a. YY Ss   ⇒   YS, YS, Ys, Ys

b. Yy Ss  ⇒     YS, Ys, yS, ys

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The two methods that allow fish to maintain water balance in saltwater are pumping out salt through the gills and absorbing water into the body by osmosis.

In saltwater, the concentration of dissolved salts is higher in the surrounding water than in the fish's body cells. To maintain water balance, fish have developed two main methods:

1. Pumping out salt through the gills: Fish possess specialized cells in their gills that actively pump out excess salts from their bodies. This process helps maintain a lower salt concentration within the fish's body, preventing dehydration and maintaining water balance.

2. Absorbing water into the body by osmosis: Osmosis is the movement of water from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. Fish have a protective layer of skin that allows water to be absorbed into their bodies while preventing the entry of excessive salts.

By absorbing water through their skin, fish replenish the water lost to the surrounding saltwater, helping to maintain their internal water balance.

These two mechanisms work together to enable fish to survive in saltwater environments. By actively pumping out salts and absorbing water, fish can regulate their internal salt concentration and prevent dehydration, ensuring their overall water balance is maintained.

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Answer:

I believe the answer is endangered.

Explanation:

Answer:

The answer is endangered.

Explanation:

Endangered species has a higher risk of becoming extinct.

Answer:

Explanation:

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). ... The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation.

Answer:

D. shell

Explanation:

Answer:

Distance & Time

Explanation:

Speed is described by distance

Scientists have to draw a conclusion by identifying and reporting only the data that support the investigation's hypothesis.

A scientist will follow the scientific method described in the steps below when conducting scientific research in order to conduct the study:

A scientist may be able to draw a conclusion based on the data he or she has gathered and interpreted. The conclusion of the investigation must be supported by the evidence that has been gathered during the investigation, such as data and observations. A conclusion may explain the causes and effects of the events that occurred during the course of the investigation by explaining what caused them.

Hope this helps :)

Answer:

D. By thinking critically and logically about possible explanations for

the data.

Explanation:

It was not B. :(

Bladder: temporary storage place for urine

Ureter: tube that carries urine from kidneys to bladder

Kidney: filters waste material from blood

Urethra: exit way of urine from body

Nephron: functional unit of kidney

Ureter is a tube that carries urine from the kidneys to the bladder

Kidney is a filter of waste material from blood

Urethra is an exit way of urine from the body

Nephron is a functional unit of kidney

Bladder temporary storage place for urine

Answer:

a.

Explanation:

It will do this through the mechanism of Inhibiting the activity of carbamoyl phosphate synthetase II . This is because carbamoyl phosphate synthetase is the regulatory enzyme for pyrimidine synthesis. Alone carbomyl phosphate synthetase is an enzyme that catalyzes the reactions that produce carbamoyl phosphate in the cytosol.

The nitrogen cycle is important to humans in the following way: it converts nitrogen into a form that humans can obtain by eating other organisms (option B).

Nitrogen cycle is the natural circulation of nitrogen in a series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation and decomposition.

During the nitrogen cycle, atmospheric nitrogen is converted to nitrogen oxides by lightning and deposited in the soil by rain, where it is assimilated by plants and either eaten by animals (and returned as faeces) or decomposed back to elemental nitrogen by bacteria.

The usable form of nitrogen that is assimilated by plants becomes accessible to humans when they consume the plants, hence, depicting the importance of the nitrogen cycle.

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We can see here that dragging each item to indicate whether it describes a benefit or a challenge of green roofs, we have:

Benefit of green roofs:

A building's roof that is partially or entirely covered with plants and a growing media, planted atop a waterproofing membrane, is referred to as a green roof or a living roof.

Moreover, it could have root barriers, drainage, and irrigation systems as additional layers. Although there is some controversy, container gardens atop roofs, where plants are kept in pots, are not typically considered to be true green roofs. Another type of green roof that is used to remediate greywater is rooftop ponds.

Challenge of green roofs:

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In Sanger sequencing, once a modified nucleotide is incorporated into the DNA, there is no free 3'OH group to attach the next nucleotide being added. This phenomenon is useful to sequence a polynucleotide chain.

Dideoxynucleotides (ddNTPs) are nucleotide inhibitors of the DNA polymerase, it is for that reason that they are used in Sanger sequencing.

The ddNTPs are similar to natural deoxynucleotides used by cells during ADN replication; however, ddNTPs lack a hydroxyl (OH) group on the 3’ carbon of the deoxyribose.

In consequence, once a ddNTP is added, DNA synthesis cannot progress, thereby this phenomenon can be used to determine the order of nucleotides during the elongation of a polynucleotide DNA chain.

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Itching and other skin problems are signs that a cat or dog may have flea. Fleas are parasites known for their biting and blood-sucking abilities. When they bite, flea saliva enters the pet’s circulatory system, sometimes causing an allergic response commonly seen as a “hot spot” on the pet’s neck or the base of its tail.

Fleas are tiny parasitic insects that infest the fur of dogs and cats. They feed on blood and cause skin irritation that results in itching. If the problem is severe, it can lead to more significant health issues. Pet owners should watch for signs of fleas and treat their pets promptly to avoid complications. Fleas lay eggs on the skin of dogs and cats, which hatch and develop into larvae.

The larvae feed on the skin, shedding as they mature. Adult fleas emerge from the larvae, biting the host to feed on blood. The process repeats itself, with adult fleas continuing to lay eggs on the skin of the pet.The most common sign of fleas in dogs and cats is itching. Pets will often scratch themselves, bite their skin, or lick excessively to relieve the irritation.

Other signs of fleas include red or inflamed skin, hair loss, and the appearance of small, raised bumps on the skin. These bumps are often referred to as "flea dirt" and are the waste products of the fleas. In severe cases, anemia, an allergic reaction, or the transmission of other parasites or diseases can occur.

Flea infestations can be treated with a variety of products, including topical treatments, shampoos, and collars. It is essential to follow the instructions on the product label and treat the pet and the surrounding environment to eliminate the fleas. Prevention is key to avoiding flea infestations, so pet owners should maintain a regular grooming and flea prevention schedule.

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Answer:

Si the hydrosphere

Explanation:

the hydroshhere is simply the total of all water

Answer:

Water helps regulate their temperature and gives energy to the cells which are tired and can't function as good after using the energy for the race.

Explanation:

oh i didnt know that, cool

In a neuron, the (1) nucleus is found inside the (2) cell body.

The cell body of a neuron, also known as the soma, contains the nucleus. It is the main part of the neuron where essential cellular functions occur, including protein synthesis and energy production.

The nucleus, which is enclosed by a membrane called the nuclear envelope, contains the genetic material of the neuron in the form of DNA. It plays a vital role in regulating the activities of the neuron and controlling the synthesis of proteins needed for various cellular processes.

The cell body serves as the control center of the neuron, integrating incoming signals from dendrites and initiating the transmission of signals along the axon.

It contains various organelles, such as mitochondria for energy production, ribosomes for protein synthesis, and the endoplasmic reticulum for the synthesis and transport of proteins.

The nucleus, as the site of DNA storage and transcription, is crucial for maintaining the genetic information necessary for the neuron's structure and function. Overall, the nucleus within the cell body plays a critical role in coordinating the activities of the neuron and supporting its overall functioning within the nervous system.

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Question

Neurons are the building blocks of the nervous system. They process and transmit signals. In a neuron, the (1)____ is found inside the (2)_____.

1. Cell membrane

Myelin Sheath

Nucleus

2. Axon

Cell Body

Dendrite

The belief that knowledge should be derived from scientific observation is an example of positivism. So the correct option is B.

The scientific study of the social world is known as positivism. Its purpose is to develop abstract and universal principles governing the workings of the social realm. Law means that is a statement concerning the interactions of forces in the cosmos.

Laws must be tested against obtained evidence in a methodical manner according to positivism. Auguste Comte championed positivism as a way of legitimizing the emerging subject of sociology, using Newton's law of gravity as an example.

Therefore the correct option is B.

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Answer:

All

Explanation:

All of the responses in the selection are related to the importance of DNA unwinding before replication:

"To expose bases so they can be paired with new bases"

"To improve flexibility in the DNA strand's phosphate backbone"

"To allow proteins to check for mistakes in the DNA strands"

"To prevent the new DNA from accidentally sticking together"

Each of these factors plays a role in the overall process of DNA replication, and together they help ensure that the process occurs efficiently and accurately.