What substance found in turkey is known for making you sleepy?

Answer:

b. troponin

Explanation:

Troponin is a globular protein present in striated muscle, cardiac muscle and skeletal muscle.

This protein is constituted by troponins T, I and C

The subunit C (Tn C) is the one that is responsible for binding Ca2 + calcium ions (each mole of protein binds two mole of Ca2 +).

Answer:

Simply saying it is cross that involves two traits

Explanation:

In dihybrid cross  the phenotypes of two genes are followed through the mating of individuals which carry multiple alleles at those gene loci. In other words, two genes controlling two different phenotypic traits are observed in dihybrid cross.

"Dihybrid cross",means

"di" indicates that there are two traits involved  for example A and B and

"hybrid" indicates that each trait has two different allele, for example A and a or B and b.

A dihybrid cross is a genetic cross between two individuals that are heterozygous for two different traits.

In genetics, a dihybrid cross examines the inheritance patterns of two traits simultaneously. Each parent in the cross is heterozygous for both traits, meaning they possess two different alleles for each trait. The purpose of a dihybrid cross is to determine the probability of offspring inheriting various combinations of these traits, and it often follows Mendel's laws of independent assortment, which state that the alleles for different traits are distributed to sex cells (and offspring) independently of one another.

Answer:

D

Explanation:

Natural selection, which powers evolution, favors traits in a population that offers an advantage in an environment. Mutations on genes that give advantage will, therefore, be preserved while those that are deleterious will be eliminated. For these mutations to be passed down generations, they have to be borne in gametes.

"The correct option is D. Gene mutations can be helpful, harmful, or neutral for an organism's survival. Only mutations that are helpful in the organism's environment would influence its survival and reproduction.

To understand why option D is the best description of how gene mutations are involved in evolution, let's analyze each option:

A. Gene mutations often skip generations, with advantageous traits showing up several generations after the gene mutation was first introduced.

- This statement is not entirely accurate. While it is true that some gene mutations may not have an immediate effect and can be carried in a population for several generations before becoming prevalent, this is not a general rule for how gene mutations contribute to evolution.

B. All gene mutations are passed to future generations and over many generations will contribute to the evolution of new species.

- This statement is incorrect because not all gene mutations are passed on to future generations. Many mutations are neutral or harmful and may be eliminated from the population through natural selection. Only those mutations that confer some advantage are likely to be passed on and potentially contribute to the evolution of new species.

C. Gene mutations can be dominant or recessive for an organism. Dominant genes will be adaptive for future generations, but recessive genes won't.

- This statement is misleading. Whether a gene is dominant or recessive does not determine its adaptiveness. A recessive gene can be beneficial, harmful, or neutral, just like a dominant gene. The adaptiveness of a gene mutation depends on its effect on the organism's fitness in a given environment.

D. Gene mutations can be helpful, harmful, or neutral for an organism's survival. Only mutations that are helpful in the organism's environment would influence its survival and reproduction.

- This statement is the most accurate description of the role of gene mutations in evolution. Mutations that are beneficial (helpful) in a particular environment can increase an organism's chances of survival and reproduction, thereby passing those mutations on to future generations. This process of natural selection can lead to the accumulation of advantageous traits in a population over time. Neutral mutations may persist in the population without affecting fitness, while harmful mutations are likely to be selected against.

In summary, option D correctly captures the essence of how gene mutations contribute to evolution by influencing the survival and reproductive success of organisms based on the environmental context."

Answer:

pollen grains

Explanation:

Pollen grains are structures in the seed plants (spermatophytes) which contain vegetative cells  but also reproductive cells - microgametophytes. Microgametophytes produce 2 male gametes or sperm cells. Vegetative cells produce pollen tube which is involved in the transfer of sperm cells to the ovule (female structure that forms female gametes). Pollen grains are different in shape, size and color, but all of them are enveloped with hard coat that has protective role.

Answer:

Pollen grains

Explanation:

Pollen grains are make gametophytes

-I took the course :)

the answer should be false

Answer:

An adult starfish has radial symmetry

Explanation:

The starfish (and all echinoderms) start out with bilateral symmetry (which is like humans who have 2 symmetrical halves) during their larval stage. However, during metamorphosis they lose this bilateral symmetry and develop some kind of radial symmetry (5 identical parts).

most starfish have pentaradial symmetry, which means that they have five arms that radiate out from a central disk.

pentaradial symmetry is a type of symmetry is common in echinoderms, which are a group of animals that includes starfish, sea urchins, and sea cucumbers.

There are a few exceptions to this rule. For example, some starfish have six arms, and others have even more. There are also some starfish that have lost their arms altogether. However, pentaradial symmetry is the most common type of symmetry in starfish.

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Answer:

1. The best statement is Science provides facts and ethics determines how to best use the information

2. The first European to cross the Atlantic ocean were Italians.

3. Captain James Cook created records of marine life as he explored new regions

Explanation:

1. Science and ethics are compulsory for each other. A scientific study without ethical consideration is not significant. Implications of all the information we get by science  are determined by ethics.

2.  Christopher Columbus an Italian was the first European to cross the Atlantic Oceans. He started his journey from Spain and accidentally discovered America.  

3. Captain James Cook contributed to the marine sciences during his voyages by creating records of marine life as he explored new regions.

Answer:

1.  D. Science provides facts and ethics determines how to best use the information

2.  C. Vikings

3.  C. Creating records of marine life as he explored new regions

Explanation:

Just did the Exam for Marine Science!

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<Jayla>

Answer:

B-Kepler

Explanation:

The correct answer is B. Kepler

Explanation:

Johannes Kepler was an important astronomer and mathematician during the 17th century mainly known for his proposals related to the planetary motion that was the base for modern models of the solar system as well as other works such as the theory of universal gravitation by Newton. In his theory, Kepler proposed three main laws that stated the orbit of planets were elliptical rather than perfectly circular, the orbital period dependent on the axis or longest diameter of the orbit and each orbit had two foci. Additionally, this model differs from Copernicus because Copernicus had proposed orbits were circular. Therefore, the astronomer that created the modern model of the solar system and discovered orbits were elliptical was Kepler.

Answer:

glial cells <3

Explanation:

Answer:

C

Explanation:

because anti-bodies help to protect the body

Answer:

Antibodies can only fight bacterial infections.

Explanation:

Antibodies can not fight both bacterial infections and viral infections. Only Vaccines can fight both.

Testosterone is synthesized primarily by the Leydig cells.

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Answer:

B. There are more protons than electrons.

Explanation:

When the number of protons is greater than that of the electrons, such an atom becomes positively charged.

An atom is made up of three main subatomic particles which are the protons, neutrons and electrons.

The electrons are negatively charged particles that moves round a central nucleus in an atom. They occupy the bulk of the volume in an atom. They are considered weightless relative the nucleons ie protons and neutrons.

The protons and neutrons are massive particles that occupy a tiny centre region in an atom. They are called nucleons and this is where the bulk of the mass of an atom concentrates. Protons have positive charges on them whereas neutrons have no charge on them.

In a neutral atom, the number of protons and electrons are thesame. Here, the positive charges cancels out the negative charges.

For a cation which is a positively charged ion, the number of protons are greater than the number of electrons. A cation must have lost an electron to have tripped the balance.

For anions which are negatively charged ions, the number of electrons are greater than those of protons.

Answer:

The answer is B

Explanation:

Gender stratification refers to the ranking of males and females according to their access to power, property, and prestige based on their sex. false

Answer:

the study of the earth's air and weather is called Meteorology.

Explanation:

Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting.

Meteorological phenomena is observable weather and then explained by the science of meteorology.

Those events are bound by the variables that exist in Earth's atmosphere. These variables are  temperature, pressure, water, and the gradients and interactions of each variable.

The majority of the observed weather is located in the troposphere of Earth.

Although meteorologists now use computer models it is still  common to use techniques and conceptual models that were developed before computers.

The study of the earth's air and weather is known as meteorology, which involves predicting weather patterns and phenomena.

The study of the earth's air and weather is called meteorology. Meteorology is a branch of atmospheric science that focuses on the atmosphere and atmospheric phenomena to understand and predict earth's weather. Meteorologists use thousands of measurements, including air pressure and temperature, to generate weather forecasts. The related field of climatology examines climate, which encompasses averaged weather conditions over long periods, such as decades or centuries, focusing on patterns and effects on a broader temporal scale.

A. It forms a part of the upper atmosphere known as the ozone layer.

A. Ozone forms a part of the upper atmosphere known as the ozone layer is the right statement to describe ozone.

Ozone is a layer of the stratosphere that contains protective gases around the planet.

Hence, option A is the right answer.

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Answer: AND Explanation.

Lisa consumed too much water in too short of a time. This led to water leaking into the brain and disrupting the cerebrospinal fluid concentrations, impairing neural tissue activity

Lisa gets a headache, collapses in seizures, and slips into a coma, so based on the information provided, the most likely hypothesis for what happened to Lisa is that she experienced heat stroke, as presented in Option A.    

Heat stroke is a serious and potentially life-threatening condition that occurs when the body's temperature regulation mechanisms fail, can happen when a person exercises in hot and humid conditions, in Lisa's case, she was used to training in hot and humid conditions, but her third marathon occurred in hot and dry conditions. Lisa's collapse, seizures, and slip into a coma suggest that her body temperature had risen to a dangerously high level, so she must be treated.

Hence, based on the information provided, the most likely hypothesis for what happened to Lisa is that she experienced heat stroke, as presented in Option A.

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The question is incomplete, complete question is below

Lisa, a beginning marathon runner, trains in hot (80 degree), humid conditions. her third marathon occurs in hot (80 degree), dry conditions. while running, she consumes the same amount of water as she does in her previous races. close to the finish line, she gets a headache and collapses in seizures and slips into a coma. which hypothesis best fits what happened to lisa?

a)heat stroke

b)homeostasis

Answer:it’s A

Explanation:I promise I just had the answer on a test a got it right

The powerful waves of the water collide with the rocks and erode the sediments resulting in the formation of the cliffs. Thus, option A is correct.

Wave erosion is the type of deterioration of the rocks and sediments because of the high and powerful wave energies that split and break the large rocky structures into smaller and vertical walls of rock layers.

The cliffs are formed of vertical rock layers that are the result of wave erosion as the powerful water energy splashes the rocks over and over to create the structure.

Therefore, the cliffs result from wave erosion.

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Answer:

c.) The mucosa  consists of a particularly vascular epithelium that facilitates efficient repair and renewal

a.) The tissue lining the stomach is an epithelium and thus capable of repair and renewal

Explanation:

The cells that form the lining of the stomach are deemed to wear out regularly due to the regular food intake they handle.

Due to this constant wearing, this cells have a mechanism of rejuvinating in order to handle their work.

Answer: Option A

Explanation:

The ulcerated stomach lining often repairs itself if the inflammation is removed this is because the tissue lining the stomach has the ability to repair and regenerate.

The healthy gut of the individual takes 2 to 3 weeks to generate the new lining of stomach which will help in treating the inflammation caused in the inner lining.

hence, the correct answer is option A

Answer:

By releasing the oxygen during the photosynthesis, and releasing the CO2 during the cellular respiration

Explanation:

The balance of gases in the atmosphere must be maintained.

Photosynthesis is a process performed by the plants (also some algae and bacteria) in which the energy of sunlight is transformed into chemical energy usable by those plants. Necessary components of this set of reactions are sunlight, water and CO2, while resulting products are glucose and oxygen. Products of photosynthesis are then used in the metabolic processes known as cellular respiration. During the cellular respiration, glucose and oxygen are used for the production of ATP, CO2 and water. Cellular respiration is performed in all living organisms.

The plants are living organisms that are producers. They are able to perform the process of photosynthesis. Through this process, the plants are included in numerous natural cycles, such as the oxygen cycle, carbon cycle, nitrogen cycle, water cycle. By using all these gases and the water, the plants manage to balance the atmosphere's composition and keep it healthy and in good condition that enables the other organisms to live. Basically, the plants are taking in the water in these gases for the process of photosynthesis, thus to produce their own food. As they use them, they release some of them in the atmosphere, some in the soil, while some are stored in them. The oxygen and the water vapor are some of the ones that are released into the atmosphere. This keeps the oxygen levels fairly constant in the atmosphere, and considering that the oxygen is crucial for the living organisms, this is very important. The water vapor is released into the atmosphere and it contributes to the formation of clouds, thus precipitation, clearing the air in the process. The carbon is mostly stored in them, so they manage to keep its levels stable and control the Greenhouse effect.

Answer:

I think it would lead to upper respiratory infections and pneumonia is the right answer

Explanation:

It would be the second one down because if you consider places like china where they have super low air quality due to high pollution they tend to have upper respiratory issues which is why many of them wear masks.

Answer:

D

Explanation:

There are different types of biogeochemical cycles such as; carbon, nitrogen, sulfur, phosphorus, and etcetera named after the respective elements being recycled. They show how these essential elements pass in different spheres of the earth (lithosphere, atmosphere, and hydrosphere) and are used and recycled by different processes.

The importance of biogeochemical cycles lies in their role in transporting and recycling essential compounds and elements through the environment, which supports life and maintains ecosystem health.  So the correcct option is  D.

The best statement that describes the importance of biogeochemical cycles is: They show how certain compounds and elements move through the environment and are continually used and recycled (Option D). Biogeochemical cycles involve the movement of elements and water through living organisms (the biosphere) and the abiotic components such as the atmosphere, hydrosphere, and lithosphere. This process is crucial for maintaining life, as it ensures that essential nutrients are available for organisms to use and return to the environment in a continuous loop.

The water cycle, carbon cycle, and nitrogen cycle are examples of biogeochemical cycles that recycle water and elements needed by organisms. These cycles are fundamental to ecosystem structure and function. They regulate the availability of resources, support life processes, and are affected by various factors, including human activities which can disturb their balance, leading to environmental consequences.

I believe it would either be a or b

Sweat is a good coolant for the body because breaking hydrogen bonds between water molecules in sweat requires energy from body heat.

A coolant is a medium, usually fluid, used to draw heat from an object.

Sweat is a natural fluid from the body that exits the body through pores in the skin usually due to physical stress and/or high temperature for the purpose of regulating body temperature.

Large amounts of heat are needed to evaporate water, because hydrogen bonds need to be broken, therefore, sweating is an example of using water as a coolant.

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Answer:

Solar energy, oxygen, fresh water,  and biomass.

Explanation:

There were no answer choices.

Hope this helps!

Brainliest is appreciated. :D

Explanation:

there are quite a few but since u did not give any question choices here are a few:solar,hydro,biomass,geothermal these are only some

Hope it helps!

Answer:

C

Explanation:

This especially applies when the ions responsible for the chemical gradient have charges. The diffusion of the ions will be affected by the electric potential difference across the membrane. While they may want to diffuse freely across the membrane across a concentration gradient, they can only diffuse as far as the charge balance across the membrane allows.

C. They negate each other is the correct answer ig

Answer:

b

Explanation:

When the muscle is at rest, myosine heads are not interacting with actin. Stage 1 in the image represents a muscle that is fully at rest (Option B).

In the sarcomere, we can identify the following components,

• A-band. This band reflects the length of the thick filament, including a small portion of the thin filament.

• I-band. This is the area located between the ends of the adjacent thick filaments. It is composed only of thin filaments.

• H-zone. This is the area located between the ends of the thin filaments. It is only composed of a portion of the thick filaments.

• Z-band is the vertical line placed at the end of each sarcomere. In adjacent sarcomeres, Z-band can be found in the middle of the I band.

At rest, tropomyosin is inhibiting the attraction strengths between myosin and actin filaments.

Tropomyosin is obstructing binding sites for myosin on the thin filament.

During contraction, binding sites between myosine and actin become unblocked.

Myosin heads join to the uncovered actin-binding points forming cross-bridges. A power stroke initiates when this binding occurs. While the power stroke happens, myofilaments slide impulsed by chemical energy collected in myosin heads.

The muscular fiber gets shorter because the sarcomere reduces in length. The H line and the I band get shorter. Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction. A band keeps constant in length.

Stage 1 in the image represents a muscle that is fully at rest (Option B). Binding sites between myosin and actin are blocked.

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I'm pretty sure its b or c

D. Competition for resources. Every population has a carrying capacity(the max amount of individuals a population can sustain). once reached, growth rate will plateau.

Answer:

If you are asking for the genotypes and phenotypes of the offspring of the jellyfishes the answers are

genotype: Rr (heterozygous dominant)

phenotype: red

Explanation:

A homozygous dominant jellyfish is represented by RR. An orange jellyfish is represented by rr.

A homozygous dominant jellyfish with red pigment would have the genotype RR and exhibit a red phenotype. An orange jellyfish, as the recessive phenotype, may have a genotype represented as oo, showing the orange pigment due to the absence of the dominant red allele. This scenario reflects Mendelian genetics rather than incomplete dominance.

In the scenario where red pigment is dominant to orange pigment in jellyfish, a jellyfish with a homozygous dominant genotype for the red pigment would have the genotype of RR, where both alleles contribute to the expression of the red pigment, resulting in a red phenotype. An orange jellyfish, being the recessive phenotype, would have a genotype represented potentially as oo if we assume red is dominant to orange without intermediate expression (since the question does not specify incomplete dominance as in the flower examples provided). This scenario differs from incomplete dominance observed in some plants, where a heterozygous genotype results in a phenotype that is a blend of both parent phenotypes, such as the described pink snapdragons resulting from red and white parents.

Therefore, the genotype of the homozygous dominant jellyfish would be RR, indicating it produces a significant amount of red pigment and appears red. Conversely, the orange jellyfish, representing the recessive phenotype, would have a genotype that does not produce the red pigment, which could be represented as oo, thus expressing the orange pigment due to the absence of the dominant red allele.

Answer:

anatomically, gorillas are most like humans

Explanation:

Answer:

The correct answer is option B.

Explanation:

Hi!

Let's solve this!

According to the data, we will analyze each of the options:

A) Anatomically, lemurs are like humans. This option is incorrect.

B) Anatomically, gorillas are more like humans. This option is correct since gorillas and humans are similar

C) Anatomically, none of the species is similar to humans. This answer is incorrect since gorillas are similar to humans.

D) Anatomically, only the lemur differs from humans in some way. This answer is incorrect.

After the analysis, we conclude that the correct answer is option B.