Question 3
How is the brain involved with the senses and what is their relationship to the way a person reacts to certain
objects?
B
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X2
Аа
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A
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Questions
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Answer:

The answer is D

Explanation:

Fiber cells; cylinder-shaped

In T. adhaerens, fiber cells are responsible for movement. The shape of these cells are star-shaped. Thus, the correct option is B.

T. adhaerens may be defined as free-living marine organisms that are disk in shape and 2–3 mm wide and approximately 15 μm high.

Trichoplax adhaerens are composed of only six somatic cell types arranged in three-layer tissue anatomy. They consist of fiber cells, crystal cells, gland cells, and dorsal-ventral epithelial cells.

Among such types of cells, only fiber cells are responsible for movement, which are star-shaped in appearance.

Therefore, in T. adhaerens, fiber cells are responsible for movement. The shape of these cells are star-shaped. Thus, the correct option is B.

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Factors such as  high heat and high pressure have to be present in order for metamorphic rocks to form.

This is referred to as a solid collection of mineral grains that grow or become cemented together and are formed through various types of techniques.

Metamorphic rocks in the other hand is referred to as any of a class of rocks that result from the alteration of preexisting rocks in response to changing environmental conditions and the process it undergoes is metamorphism hence the name given to it.

Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids etc or combination of the factors mentioned above which are usually present in the deep region within the Earth or where tectonic plates meet.

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DNA content of the same cell at metaphase of meiosis ii will be 0.25x 21 0.5. Thus the correct answer is option (A). O.5

The chromosomes are at their second-highest level of condensing and coiling during the mitotic phase of the eukaryotic cell cycle, also known as metaphase. The chromosomes that carry the genetic material align in the mobile's equator before being split into each of the two daughter cells.

The chromosome centromeres congregate at the metaphase plate, also known as the equatorial plate, an illustration of a line situated equidistant from the two centrosome poles, during metaphase. This even alignment, which is comparable to a tug-of-war between two people with equal electrical potential, leads to the death of B cyclin. It results from the opposing kinetochore microtubules' tugging pressures counteracting one another.

The proper question is:

The DNA content of a diploid cell in the G1 phase of the cell cycle is measured If this DNA content is X, then the DNA content of the same cell at metaphase of meiosis I would bea.

(A). 0,5 X

(B). 0,25 X

(C).  X

(D). 2X

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Answer:

Chemical energy

Explanation:

We get chemical energy from foods, which we use to run about, and move and talk (kinetic and sound energy). Chemical energies are stored in fuels which we burn to release thermal energy - this is one way of making electricity, see Electricity for more information.

A food web is a diagram that shows what is eaten by what in an ecological community and how food chains naturally connect to one another.  

Find the food web picture attached below.

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Option A: All biopsy samples are positive for H. pylori is the interpretation of your gel.

A molecular biology technique called agarose gel electrophoresis is used to examine and classify DNA fragments according to their size. You might experience a typical issue when using gel electrophoresis to aid with molecular cloning.

You are prepared to extract your digested plasmid DNA from agarose, for instance. But you notice multiple bands on your sample after digestion and are unsure which one to remove. In this post, we discuss the various plasmid DNA types and provide some helpful advice for interpreting your gel.

The mobility of the plasmid DNA may be impacted by the gel electrophoresis settings. Circular plasmid DNA is more easily entangled in the agarose mesh because of the net-like character of agarose gel.

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Populations in Hardy-Weinberg equilibrium express the same allelic and genotypic frequencies through generations. Number of individuals expressing each phenotype: 63 sheep S^AS^A, 84 sheep S^AS^B, 28 sheep S^BS^B.

The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies in populations that is in equilibrium remain the same through generations. No evolutive forces are acting on these populations, so no evolution occurs.

Assuming a diallelic gene,

Allelic frequencies

Genotypic frequencies

The addition of the allelic frequencies equals 1

p + q = 1.

The sum of genotypic frequencies equals 1

p² + 2pq + q² = 1

In the exposed example,

Alleles          Frequencies

Genotypes

We need to get the number of animals expressing each genotype and phenotype. To do it, we just need to use allelic frequencies and calculate  genotypic frequencies (p², 2pq, and q²), and then multiply these values by the total number of animals (N = 175).

Genotypic and Phenotypic frequencies

F(S^AS^A) = p² = 0.6² = 0.36

F(S^AS^B) = 2pq = 2 x 0.6 x 0.4 = 0.48

F(S^BS^B) = q² = 0.4² = 0.16

Number of individuals expressing each phenotype

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Complete question

A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes

In a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4.

Using the hardy weinberg equation calculate the number of sheep with each phenotypes in the flock show your working

1.Ice melting is a physical change

2.Eggs cooking is a chemical change

3.Salt dissolving is a physical change

4.Wood burning is a chemical change

5. Fireworks exploding is a chemical change

A substance can change physically even when no new substance is created as a result of the change. It simply modifies the substance's outward attributes, such as its shape, size, texture, or phase (such as solid, liquid, or gas).

When a compound undergoes a chemical change, a new substance or substances with new chemical properties are created. Chemical bonds are broken and formed as a result of this process, which transforms one or more chemicals into one or more new substances. Chemical changes can release or absorb energy (heat, light, or sound), and they are frequently irreversible.

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Answer:

The predominant molecule that will be reabsorbed from the descending limb of the Loop of Henle is water.

Explanation:

This is because the descending limb of the Loop of Henle is permeable to water but not to solutes such as glucose, albumin, or sodium chloride. As the filtrate flows down the descending limb, water is passively reabsorbed and the concentration of solutes increases.

Hope it helps!

Answer:Hiking uphill.

Cycling more than 10 miles per hour or steeply uphill.

Swimming fast or lap swimming.

Dancing, fast dancing, and step aerobics.

Strength training.

Heavy gardening with digging, hoeing

Explanation:

For an activity to be vigorous, you need to work at 70 to 85 percent of your maximum heart rate, according to the American Heart Association. Examples of vigorous exercise include: running. cycling at 10 mph or faster

Answer:

UCG GAC CAT CGA

Explanation:

Dna base sequences are complementary to mRNA base sequences.

The four base sequences in DNA are Adenine (A), Thymine (T), Guanine (G) and Cytosine (C). In complementary base pairing A pairs with T, and C pairs with G via hydrogen bonding.

In mRNA it does not have the same four bases. Instead of having Thymine, it is replaced with Uracil (U), so A pairs with U, and C pairs with G.

Hence the mRNA sequence for the DNA sequence will be:

UCG GAC CAT CGA

Answer:

DNA polymerase

Explanation:

During DNA replication, the covalent bonding of nucleotides into a new strand of DNA is performed by *DNA polymerase*

Answer:

D

Explanation:

This is because circulation is blood,respiration and competition have no relation to changing the DNA of an organism

Answer:

Some animals would be forced to migrate.

Explanation:

Animals and species cannot adapt, evolve, or go extinct in a matter of weeks. Adaptation and evolution happen over the course of hundreds of thousands of years and extinction would be unlikely unless there was an extremely endangered species that died when the forest was cut down.

The cause of animal migration may be deforestation that is loss of shelter. The correct answer is d) Some animals would be forced to migrate.

The extensive movement of a species from one location to another is known as animal migration. The majority of animals move throughout particular seasons in search of food, water, or mate.

When people clear or thin forests to make timber or to use the ground where the trees formerly stood for farming, grazing, extraction (of minerals, oil, or gas), or development as a result of population growth and migration, this is known as deforestation.

Deforestation results in soil erosion, destruction of natural ecosystems, loss of biodiversity, and problems with the water cycle. Another factor in climate change and global warming is deforestation.

By absorbing greenhouse gases (such as carbon dioxide) and serving as a carbon sink, forests fight climate change. They provide food, clean water, oxygen, and medical care. They are essential to the water cycle because they act to add water to the air through transpiration. Forests operate as floodwater sink, reducing the destructive impacts of floods. Deforestation, therefore, makes the continent more susceptible to various natural disasters. The dense concentration of trees in forested regions prevents soil erosion by giving the soil mechanical support.

Animals are impacted by deforestation in many ways. In addition to many other things, it results in habitat damage, elevated predatory danger, and decreased food availability. As a result, many animals perish, some lose their habitats and others their food supplies. In actuality, one of the primary reasons for extinction is deforestation.

Deforestation destroys the natural habitats of wild animals, which causes them to migrate to new ecosystems or be abandoned to perish without adequate protection. Because they are losing their native environment, many animal species are in danger of going extinct.

Hence, the correct answer is d).

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Answer:

The question is incomplete, below is the completed question:

The main function of a cell membrane is to allow substances to enter and leave the cell. Which is a correct description of transport through a cell membrane ?

a. Diffusion, or passive transport, occurs when molecules diffuse from a lower concentration to a higher concentration.

b. Facilitated transport occurs when proteins that extend through the cell membrane provide a channel through which certain substances can diffuse more rapidly than by passive diffusion.

c. The lipid bilayer opens up and allows the ions or molecules to enter the cell, then closes.

d. Active transport occurs when molecules diffuse from a higher concentration to a lower concentration.

Answer:

b. Facilitated transport occurs when proteins that extend through the cell membrane provide a channel through which certain substances can diffuse more rapidly than by passive diffusion.

Explanation:

Transport through cell membranes can be broadly classified as active transport or passive transport.

Active transport requires energy in the form of ATP for the transportation of substances across the cell membrane.

Option b correctly describes facilitated diffusion, which is a passive-mediated diffusion process, where channels in the cell membrane mainly composed of proteins called transmembrane integral proteins, allow for the movement of certain molecules (mostly polar/hydrophilic) molecules that will not otherwise be transported through simple diffusion because of the hydrophobic nature of the cell membrane.

The other options are wrong because:

a. diffusion or simple transport involves the movement of substances from regions of higher to a lower concentration not lower to higher as suggested here.

c. The lipid bi-layer does not allow ions or hydrophilic molecules because it is hydrophobic in nature, and it is not a channel, so it does not open and closes

d. In active transport, transfer of molecules is from regions of lower to higher concentration and not higher to lower concentration as suggested here.

C. The angle of the sun's rays and the number of hours of daylight.

The length of daylight hours and the angle at which the sun's rays hit the Earth's surface both have a big impact on the seasons. The Earth's axis is tilted in relation to its orbital plane as it revolves around the sun.

Because of this tilt, various areas of the Earth's surface get sunlight at varying angles throughout the year. When one hemisphere is inclined towards the sun, more direct sunlight falls there, resulting in longer daylight hours and higher temperatures, giving rise to summer.

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Lighter colored mice were more likely to avoid predators and to reproduce. Therefore, option (D) is correct.

The lighter brown coloration of the deer mice in the Sand Hills of Nebraska is likely an adaptation that provides them with a survival advantage in their specific habitat. The light, sandy soil in the area may offer better camouflage for lighter colored mice, making them less visible to predators and increasing their chances of survival.

As a result, these mice would have a higher likelihood of successfully reproducing and passing on their lighter coloration traits to future generations.

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The reflecting telescope gathers more radiation than the refracting telescope. Therefore, option (D) is correct.

Reflecting telescopes use mirrors to gather and focus light, allowing for larger apertures and higher light-gathering capabilities compared to refracting telescopes, which use lenses. This design difference typically gives reflecting telescopes an advantage in terms of gathering more radiation from distant objects in space.

However, without specific information about the sizes or specifications of the telescopes in the pictures, this inference is based on the general characteristics of reflecting and refracting telescopes.

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Answer:

there you go

Explanation:

adenine(A),

uracil(U),

guanine(G),

cytosine(C)

A=U, G≡C

- The term heterozygous refers to an individual that has one dominant and one recessive allele for a given trait. (f)

- The Punnet square is a table or diagram that is used to determine the possible allele combinations of the offspring for a cross between two individuals. (a)

- The genotype indicates the genetic constitution of an individual. (e)

- Codominance refers to a type of inheritance in which neither allele is dominant over the other one. This means that the homozygous dominant and the heterozygous individuals will express different phenotypes. (g)

- Probability indicates the chances of an individual inheriting a determined trait. (b)

- Homozygous, this term refers to an individual that has two identical alleles for a determined trait. If the alleles are both dominant "DD", then the individual is homozygous dominant and if the alleles are recessive "dd", then the individual is homozygous recessive. (c)

- Phenotype is the observable characteristic of the individual. (d)

Answer: At first German were winning against the allies  

Explanation: The following shows how: Battle against U-boats in Atlantic, Soviets turn back Nazis at Stalingrad, -Allies drive Germans out of North America, -Allies invade Italy, British and American bombers battle Germany, -Casa Blanca conference Hope This Helped!

Answer:

Epidermis

Explanation:

Answer:

epidermis

Explanation:

The epidermis , made up if dermal tissue is the outermost layer of the root. Like the epidermis of human skin, the root epidermisis protective, preventing damage to the root. Beneath the epidermis is a layer ground tissue is called the cortex

Hope it helpful^_^

Answer:

The study of living organisms divided into many specialized fields that cover their morphology physiology anatomy behavior origin and distribution

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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