Dopamine, norepinephrine, and acetylcholine are all hormones excreted by the endocrine glands hormones excreted by the endocrine glands.

a. secretions of the exocrine glands secretions of the exocrine glands.
b. drugs used in the therapeutic treatment of memory disorders drugs used in the therapeutic treatment of memory disorders.
c. enzymes involved with the degradation of interneuron signals enzymes involved with the degradation of interneuron signals.
d. neurotransmitters that excite or inhibit a neural signal across a synapse

Answer:

c

Explanation:

its c i took the test

Answer:

Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.

Explanation:

Answer:

Carcinogenic material refers to substances that are capable of causing cancer in living tissue. This has become an issue during the modern environmental era due to the increased use of chemicals and other substances in industry and agriculture that may have carcinogenic properties.

Air pollution is a major concern in the modern environment era, as it can have significant negative impacts on human health, the environment, and the economy. Air pollution is caused by the release of various pollutants, such as particulates, gases, and chemicals, into the atmosphere.

Persistent chemicals are chemicals that remain in the environment for long periods of time and can accumulate in living organisms. These chemicals can have harmful effects on human health and the environment, and they have become an issue of concern in the modern environmental era.

Extinction refers to the disappearance of a species or population of organisms from the earth. This has become a major issue in the modern environmental era due to the impact of human activities on the natural world, such as habitat destruction, pollution, and climate change.

Famine is a widespread and severe food shortage that can have serious consequences for human health and well-being. This has become an issue in the modern environment era due to factors such as climate change, population growth, and resource depletion.

Water pollution is a major concern in the modern environmental era, as it can have serious impacts on human health, the environment, and the economy. Water pollution is caused by the release of various pollutants, such as chemicals, pathogens, and nutrients, into bodies of water.

Hazardous waste is any material that is dangerous or potentially harmful to human health or the environment. The proper disposal of hazardous waste has become an issue of concern in the modern environmental era due to the potential impacts of these materials on human health and the environment.

Explanation:

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

Answer:

it is uranium

Nuclear Fission Creates Heat

Reactors use uranium for nuclear fuel. The uranium is processed into small ceramic pellets and stacked together into sealed metal tubes called fuel rods.

Explanation:I look it up on many website

The anole lizard is a tree-dwelling reptile that has adapted to live almost anywhere. Because the rain forest is rich with species of anole, many lizards are competing for the same food and the same living space. Oftentimes, anoles will avoid competition by occupying different portions of the rain forest. For example, one species of anole may live in the canopy, while another species live near the forest floor. This behaviour is an example of- niche partitioning.

What is niche partitioning?

The process by which competing species use the environment differently to enable them coexist is known as niche partitioning in ecology. According to the competitive exclusion principle, two species with identical niches (ecological roles) will always drive the other one to extinction if they compete.

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Answer:

hello darling how are you

Explanation:

Ecological pyramids help analyze energy flow through trophic levels by showing the amount of energy available at each trophic level. Primary producers make up the first trophic level while various consumers occupy the other levels. Only a small portion (on average 10%) of energy stored in any trophic level is available to organisms at the next level.

Answer:

Deforestation and poaching

Explanation:

Humans cut down trees - deforestation, increasing the levels of CO2 in the atmosphere, leading to global warming

Humans poach animals; leading to a decline of animals and an increase in 'at risk of extinction' animals

Answer:

High concentration to low concentration with or without a partially permeable membrane

Explanation:

Diffusion is the movement of particles from a region of high concentration (where there is alot of the particle) to a region of low concentration (where there is less of the particle) until it is evenly distributed.

The definition didn't state whether or not a partially permeable membrane was required.

It doesn't have to pass through a membrane. for e.g. spraying perfume at one side of the room and it is smelt on the other side. Meaning it diffused through the room. There was no membrane present.

It can also pass through a membrane for e.g diffusion of oxygen gas into cells (cells have membranes therefore the oxygen diffused through the membrane.)

When we see the reciprocal cross between a red-eyed female (homozygous) and a white-eyed male,we observe that none of the offspring will have white eyes. Additionally, the sex of the offspring will be half male and half female since the ratio of males to females is 1:1.

The reciprocal cross for a red-eyed female (homozygous) and a white-eyed male can be shown as follows:Female (XrXr) x Male (XwY). Females have two X chromosomes and males have an X and a Y chromosome. Red eyes are dominant to white eyes; therefore, we use Xr to represent red eyes and Xw to represent white eyes.

The offspring are as follows:All F1 females are heterozygous (XrXw).All F1 males are hemizygous (XrY).The F1 generation will have red eyes since the dominant allele is present.

None of the F1 individuals will have white eyes as the recessive allele is not present in the F1 generation.

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Answer:

Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

Explanation:

hope it becomes helpful to you ☺️☺️

good luck

Answer:

Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

Explanation:

:) hope this helps!

1. The exocrine function is stimulated by this hormone produced in the anterior pituitary: follicle-stimulating hormone (FSH), and produces ova (eggs) in the female.

2. The endocrine function is stimulated by this hormone in the anterior pituitary: luteinizing hormone (LH), and produces estrogen and progesterone in the female.

3. The exocrine function is stimulated by this hormone produced in the anterior pituitary: luteinizing hormone (LH), and produces sperm in the male.

4. The endocrine function is stimulated by this hormone in the anterior pituitary: follicle-stimulating hormone (FSH), and produces testosterone in the male.

1. The exocrine function of the reproductive system in females is stimulated by the hormone produced in the anterior pituitary called follicle-stimulating hormone (FSH), which promotes the production of ovarian follicles. The exocrine product in females refers to the release of eggs or oocytes from the ovaries during ovulation.

2. The endocrine function of the reproductive system in females is stimulated by the hormone luteinizing hormone (LH) produced in the anterior pituitary. LH triggers the release of estrogen and progesterone from the ovaries, which regulate the menstrual cycle, promote the development of the uterine lining, and prepare the body for pregnancy.

3. The exocrine function of the reproductive system in males is stimulated by the hormone produced in the anterior pituitary called luteinizing hormone (LH), which stimulates the production of testosterone in the testes. Testosterone is the primary male sex hormone and is responsible for the development of male reproductive organs and secondary sexual characteristics.

4. The endocrine function of the reproductive system in males is stimulated by the hormone follicle-stimulating hormone (FSH) produced in the anterior pituitary. FSH promotes the production of sperm cells (spermatogenesis) in the testes.

Overall, the reproductive system has both endocrine and exocrine functions, with the anterior pituitary gland playing a crucial role in regulating these functions through the production of specific hormones.

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The majority of working teens are employed by restaurants, grocery stores, and department stores, the subject in this case is the teen in Option B, as the teens do all of these jobs to cover their daily expenses.

Generally, grocery stores, restaurants, etc. hire the teens to do the work, and they do so because the economically weak teens take that chance to work even if they get paid low, and this helps the store owner save more money.

Hence, the majority of working teens are employed by restaurants, grocery stores, and department stores, the subject in this case is the teen in Option B, as the teens do all of these jobs to cover their daily expenses.

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Deforestation is the main cause of soil erosion. Without plant cover, there will be an occurence of erosion that will sweep the land into rivers. Trees and their roots gives the soil a defense and refuge from the wind and rain. When forest are eradicated, it makes the land exposed and vulnerable of being washed away by elements. Logging exposes soil to rain splash which lossens soil particles. It erodes the soil making a more impermeable bare surface that increase runoff.

Answer:

′UACCAAGGUAG5

Explanation:

DNA is a two-stranded molecule. Each strand is a polynucleotide composed of A (adenosine), T (thymidine), C (cytidine), and G (guanosine) residues polymerized by "dehydration" synthesis in linear chains with specific sequences. Each strand has polarity which runs from 5′ to 3′.

In DNA, A pirs with T and G pairs with C.

Fo through the original 5′ to 3′ sequence pairing each A with T ad each C wth G.

While RNA is a single strand molecule. This Strand also consists polynucleotide composed A, C, G and U (uridine).

For a complementary strand replace A with U (because RNA does not consist T), T with A, C with G, and G with C.

Hence,

Given strand: 5′ATGGTTCCATC3′

Complementary RNA strand: 3′UACCAAGGUAG5′

Keep in mind that the complementary strand will read from left to right in the 3 to 5 direction.

Abiotic factor is a non-living part of an ecosystem that shapes its environment.

The terrestrial ecosystem, includes temperature, light, and water. In a marine ecosystem, abiotic factors would include salinity and ocean currents. Abiotic and biotic factors work together to create a unique ecosystem.

Abiotic factors present in all the non-living components present in an ecosystem. They typically comprises of physical and chemical components. Abiotic factor are non-living component of an ecosystem which shapes environment. Examples includes temperature, light, and water. In a marine ecosystem, abiotic factors would include salinity and ocean currents.

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Answer:

4.) proteins - 5.) alleles

Explanation:

Since you are in a hurry I won't explain much but no.5 is definitely alleles

Answer:

See the answer below

Explanation:

a) The mode of inheritance of the bar mutant is X-linked and dominant.

Assuming that barness is represented by the allele B.

Bar female = \(X^BX^B\) or \(X^BX^b\)

Wild type male = \(X^bY\)

Bar female x wild type male:

                 \(X^BX^B\)    x    \(X^bY\)

          \(X^BX^b\)   \(X^BY\)  \(X^BX^b\)    \(X^BY\)

All of the F1 flies are bar because a single B allele is required for the trait to be expressed.

Bar male x wildtype female

                            \(X^BY\)   x   \(X^bX^b\)

                 \(X^BX^b\)    \(X^BX^b\)   \(X^bY\)    \(X^bY\)

All the female offspring are barred while all the males are wildtype barred resulting in a 50/50 (857/905 is approximately 50/50) ratio of barred/wildtype offspring.

b) Genotypes of each of the cross above, including the parents and the F1 generations.

1.             \(X^BX^B\)    x    \(X^bY\)

          \(X^BX^b\)   \(X^BY\)  \(X^BX^b\)    \(X^BY\)

2.               \(X^BY\)   x   \(X^bX^b\)

           \(X^BX^b\)    \(X^BX^b\)   \(X^bY\)    \(X^bY\)

Following are the solution to the given points:

For question A:

                  \(\frac{\text{wildtype male}}{\text{bar female}} \ \ \ \ \ \ \ \ \ \ \ X^b \ \ \ \ \ \ \ \ \ \ \ X^b\\\\ X \ \ \ \ \ \ \ \ \ \ \ X X^b\ \ \ \ \ \ \ \ \ \ \ X X^b\\\\ Y \ \ \ \ \ \ \ \ \ \ \ Y X^b \ \ \ \ \ \ \ \ \ \ \ Y X^b\\\\ \)

                         \(\frac{\text{wildtype male}}{\text{bar female}} \ \ \ \ \ \ \ \ \ \ \ X \ \ \ \ \ \ \ \ \ \ \ X\\\\ X^b \ \ \ \ \ \ \ \ \ \ \ X X^b\ \ \ \ \ \ \ \ \ \ \ X X^b\\\\ Y \ \ \ \ \ \ \ \ \ \ \ Y X \ \ \ \ \ \ \ \ \ \ \ Y X\\\\\)

For question B:

The genotype of flies for the first cross will be\(\to \text{male (XY) \ and\ female} (X^b X^b)\)

The genotype of flies for the second cross will be:

\(\to \text{male} \ (X^b \ Y)\ \text{and female \ (XY)} \)

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Answer:

its a big star?

Explanation:

its a big star?

The expression when the rule for a number pattern is to multiply each number by 3 will be 2 × 3x.

The next three numbers will be 6, 12 and 18.

Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.

In this situation, the rule for a number pattern is to multiply each number by 3 and the first number is shown as 2.

The expression will be:

= 2 × (3 × x)

= 2 × 3x

where x = the number given.

The next three numbers will be:

2 × 3x

= 2 × 3(1)

= 6

2 × 3x

= 2 × 3(2)

= 12

2 × 3x

= 2 × 3(3)

= 18

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Complete question

The rule for a number pattern is to multiply each number by 3. The first number is 2. What is the expression that relates to the information and. find the next three numbers.

Answer:

My best guess would go with A

Explanation:

The reason why is that Photosynthesis needs sunlight, water and carbon dioxide to start reactants.

Answer:Wind turbines do not release emissions that can pollute the air or water (with rare exceptions), and they do not require water for cooling. Wind turbines may also reduce the amount of electricity generation from fossil fuels, which results in lower total air pollution and carbon dioxide emissions.

Explanation:

Explanation:

Wind is a non-fossil fuel and will never run out, so you can spend regular fossil fuels more conservatively

One must use hot water because the temperature allows to extract the flavour in a more efficient way.

The process of making iced tea by adding the teabag to hot water first and then cooling it down is a common practice for several reasons:

Extraction of Flavor: Hot water helps to extract the flavor compounds from the tea leaves more efficiently. When tea is steeped in hot water, the heat causes the compounds responsible for flavor and aroma to dissolve into the water more readily, resulting in a stronger and more flavorful brew.

Infusion of Tea Leaves: The hot water allows the tea leaves to fully infuse and release their flavors, oils, and other components into the water. This process contributes to a more robust and well-rounded taste profile.

Dilution and Consistency: When iced tea is made with hot water first, it is usually brewed to be slightly stronger than desired. This is because the ice added later will dilute the brew to the desired strength. By initially brewing the tea with hot water, the dilution caused by adding ice cubes ensures that the final drink is not weak or watery.

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Answer:

b. FD

d. Fd

c. Dd

h. dd

Explanation:

From the given information:

We are given a dihybrid cross that comprises two traits. The crossing exists between two heterozygous white disc-shaped traits i.e. FdDd.

If the parent self crossed, the gamete combinations for the F1 generation are:

        F      d

D     FD   Dd

d     Fd     dd

Therefore, the gametes combinations are four potential and feasible combinations of FdDd that can enter into the Filial generation crossing.

Answer:

you learn about vampires

hahah

Answer:

abuja is the capital of nigeria

Answer:

Abuja is the capital city of the Nigeria

Answer:

No, the efficiency of a cell does not always depend on its complexity

Explanation:

hope it helps

Answer:

chick

Explanation:

it has feathers and lays eggs