Match the term to its description.



Match


Term


Definition



Moon


A) An astronomical body that orbits around a planet



Planet


B) A collection of planets and their moons in orbit around a central star



Solar System


C) A celestial object consisting of a nucleus of ice and a stream of gas and dust



Comet


D) An astronomical body that orbits around a star

Note that the description above references the structure of the leaves of a plant where the top and bottom layers of leaves are called the epidermis.

The cells in the epidermis are flat and irregularly shaped, and they help to protect the plant and regulate water loss. The epidermis is located on the leaf's outer surface and comprises a single layer of cells.

Below the epidermis, there are internal cells that are packed together in layers. These cells are called mesophyll and contain chloroplasts, the organelles responsible for photosynthesis. The chloroplasts are located in the mesophyll cells, which are found in the middle of the leaf. The mesophyll cells are arranged in a way that exposes the most significant number of chloroplasts to light, which is necessary for photosynthesis to occur.

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An index fossil must meet three criteria: it must be easily identifiable, have a wide geographical distribution, and be found in a narrow range of strata (i.e. a specific time period).

Geographical refers to the study of the physical features of the Earth and its atmosphere, including the location, distribution, and relationships between different natural and man-made features. It is concerned with the surface of the Earth, its landforms and climates, its physical features and its oceans and rivers, as well as the people who inhabit it.

By looking at the characteristics of the fossil, its age and its location, scientists can determine whether or not it is an index fossil. For example, if the fossil is easily identifiable, has a wide geographical distribution, and is found in a narrow range of strata, it is likely an index fossil. Additionally, scientists can look at the fossil’s age and compare it to other known fossils to see if it is an index fossil. If the fossil is found in a wide variety of strata and its age is within a certain range, it is likely an index fossil.

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Answer:

telephase 1

Explanation:

An example of a plant virus is the Tobacco mosaic virus (TMV), which when infecting plants, cause them to have an stunted and irregular growth of their tissues, such as leaf and stems, which provokes the plant to not developing well

Answer:

Type A

Explanation:

Mode of inheritance for blood is tricky, but type A and B are codominant, while type A and type B are dominant over O. So in this situtation

I^Ai is A because type a is dominant over o

Answer:

Retina

Explanation:

The opening in the middle of the iris through which light passes to the back of the eye. Retina.

Answer:

uhh

Explanation:

sorry i dont know

Answer:

The difference between light dependent and light independent reactions is light independent is energy from sunlight that is absorbed by Chlorophyll. Also light dependent is energy that is converted into stored chemical energy. In the independent reactions, the chemical energy basically harvests during the light dependent reactions, which drives the assembly of these sugar molecules from carbon dioxide.

The oropharynx is a section of the throat located at the back of the mouth and is involved in both the respiratory and digestive processes.

The oropharynx is positioned directly behind the oral cavity (mouth) and extends from the soft palate, which is the posterior part of the roof of the mouth, to the epiglottis. It serves as a passage for both air and food. During the process of swallowing, the epiglottis folds over the opening of the larynx to prevent food and liquids from entering the windpipe (trachea). This ensures that substances are directed towards the esophagus and into the digestive system rather than the respiratory system.

Additionally, the oropharynx plays a crucial role in vocalization and speech production. It contains the tonsils, which are part of the immune system and help to protect against infections. The oropharynx is also the area where the airway and food pathway cross, making it a vital region for the proper functioning of both systems.

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Answer:

What are the answer choices?

Explanation:

If there are none, say that prokaryotic cells have a cell wall, large vacole and chloroplast.

Answer: Carcharodon carcharias

Explanation:

Answer:

Carcharodon carcharias ;)

Explanation:

Hubble measured the velocity of galaxies by using the Doppler effect, and Hubble states that galaxies farthest from the center of the universe move faster.

The Doppler effect is a theory used in physics to understand how we can determine modifications in the wave frequency that are associated with the investigator who is observing these waves and wave source.

The Doppler effect depends on different physic variables such as wave speed, investigator position (and velocity), wave sources, etc.

In conclusion, Hubble measured the velocity of galaxies by using the Doppler effect, and Hubble states that galaxies farthest from the center of the universe move faster.

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Answer:

1 st box is the 1st choice and the 2nd box is the 2nd choice

Explanatio

Answer:

Explanation:

To determine whether the population is in Hardy-Weinberg equilibrium (HWE) for the Ab locus, we need to compare the observed genotype frequencies with the expected frequencies under HWE assumptions. The expected genotype frequencies under HWE can be calculated using the allele frequencies observed in the population.

Let's assume that the Ab locus has two alleles, A and B. We'll denote the allele frequencies as p and q, respectively, and the expected genotype frequencies under HWE as p^2 (AA), 2pq (AB), and q^2 (BB).

Given the genotyping data, we can analyze the observed genotype frequencies and calculate the expected frequencies. Let's say we obtained the following counts:

AA: 45 individuals

AB: 60 individuals

BB: 15 individuals

To determine the allele frequencies, we can calculate the allele counts. Let's denote the frequency of allele A as p and allele B as q.

Count(A) = 2 * AA + AB = 2 * 45 + 60 = 150

Count(B) = 2 * BB + AB = 2 * 15 + 60 = 90

Total count = Count(A) + Count(B) = 150 + 90 = 240

p = Count(A) / Total count = 150 / 240 = 0.625

q = Count(B) / Total count = 90 / 240 = 0.375

Now, we can calculate the expected genotype frequencies under HWE:

p^2 = (0.625)^2 = 0.390625

2pq = 2 * 0.625 * 0.375 = 0.46875

q^2 = (0.375)^2 = 0.140625

To determine whether the population is in HWE, we can perform a chi-square test using the observed and expected genotype frequencies.

Observed:

AA: 45 individuals

AB: 60 individuals

BB: 15 individuals

Expected (calculated above):

AA: (0.390625) * 120 = 46.875

AB: (0.46875) * 120 = 56.25

BB: (0.140625) * 120 = 16.875

To conduct the chi-square test, we compare the observed and expected frequencies for each genotype and calculate the chi-square statistic:

Chi-square = Σ [(Observed - Expected)^2 / Expected]

Calculating for each genotype:

AA: [(45 - 46.875)^2 / 46.875] = 0.07602

AB: [(60 - 56.25)^2 / 56.25] = 0.26765

BB: [(15 - 16.875)^2 / 16.875] = 0.10741

Summing the values:

Chi-square = 0.07602 + 0.26765 + 0.10741 = 0.45108

Degrees of freedom (df) = Number of genotypes - 1 = 3 - 1 = 2

To determine whether the population is in HWE, we compare the chi-square statistic with the critical value from the chi-square distribution table for the given significance level and degrees of freedom. If the calculated chi-square value exceeds the critical value, we reject the null hypothesis of HWE.

Alternatively, we can use statistical software or an online chi-square calculator to obtain the p-value associated with the calculated chi-square value. If the p-value is below the chosen significance level (e.g., 0.05), we reject the null hypothesis.

Further analysis:

If the population is not in HWE, it suggests that there are deviations from the expected genotype frequencies. The deviations could indicate factors such as non-random mating, genetic drift, selection, mutation, or migration.

To explore the deviations further and understand the factors contributing to the population's deviation from HWE, additional investigations can be conducted. These might include:

1.  Investigating mating patterns: Assessing whether individuals are preferentially mating with individuals of certain genotypes or from specific breeding units.

2.  Genetic drift: Analyzing the population size and potential bottlenecks or founder effects that could contribute to deviations from HWE.

3.  Selection: Examining whether natural selection is acting on the Ab locus, leading to deviations from expected genotype frequencies.

4.  Mutation and migration: Assessing the potential impact of new mutations or migration from other populations on the observed genotype frequencies.

By conducting these additional investigations, we can gain a better understanding of the factors influencing the population's deviation from HWE and further test the original hypothesis.

Answer:

a. polysaccharide to monosaccharide

Explanation:

amino acids are building blocks for proteins

polysaccharides are building blocks for monosaccharides

Amino acids are defined as the building blocks of the protein structures (macromolecules). Similarly, fats are the monomeric units that make lipid structures. Thus, option c is correct.

Lipids are classified as large organic molecules that are insoluble in water and act as the structural component of the cell and store energy. These lipids are polymers that are made of fats and glycerol (triglyceride) at the unit level.

The fats and glycerol (triglyceride) are said to be monomeric units that make the lipids molecules by covalent (ester bonds) to form the chain of the lipids by the condensation reaction. This results in the formation of the polymers.

Therefore, option c. as amino acids are to proteins, similarly, fats are to lipids.

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Multiple EPSPs are generated stimulating the neuron to reach threshold.

When excitatory neurotransmitters bind to receptors on the postsynaptic cell, it causes the opening of sodium chemical gates, allowing sodium ions to enter the cell and depolarize the membrane. This depolarization generates multiple EPSPs that can summate to reach the threshold for an action potential.

                                      Option (a) is incorrect because IPSPs are inhibitory postsynaptic potentials that hyperpolarize the membrane and decrease the likelihood of an action potential. Option (c) is incorrect because sodium gates actually open to allow sodium ions to enter the cell, not exit. Option (d) is also incorrect because potassium gates allow potassium ions to exit the cell, not enter.

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In order to best fit their specific environmental niches, other species have evolved. Due to the fact that only noises within this frequency range can cause the cochlea in humans to be stimulated, humans have a limited range of auditory sensitivity. Because the cochlea's hair cells have varied lengths, they can pick up different sound frequencies.

The pressure fluctuations caused by vibrating molecules are known as sound waves. The three psychological aspects of sound—loudness, pitch, and timbre—are influenced by the physical properties of sound waves. The amplitude, or height, of sound waves determines how loud something is. The perceived sound volume increases with increasing amplitude.

Although different frequencies of sounds (tones) have the same sound pressure levels, the human ear does not respond to them all equally. The subjective or individual magnitude of a sound is referred to as its loudness. A sound's loudness is not inversely proportional to its sound pressure level and varies depending on the frequency.

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Explanation:

Hey there!

Your answer is option B.

Reason:

Base are the substance that produces hydroxyl ion dissolving in water.

Option A(true): The pH value of base is always greater than 7.

Option B (false): A base is considered as alkaline if it dissolves in water only otherwise they are not alkaline.

Option C (true): A base always has few hydrogen ions in it.

Option D(true) : A base has also few hydroxide ions.

Hope it helps!

Answer: G

Explanation: F and H are observations, not inferences, and the image does not contain enough information to support inference I.

In order to  culture staphylococcus, we used to swab  in the throat, nose,  and skin.

Staph infections are caused by staphylococcus microscopic organisms. These sorts of germs are commonly found on the skin or within the nose of numerous healthy individuals. Most of the time, these microscopic organisms cause no issues or cause moderately minor skin infections. But staph diseases can turn dangerous on the off chance that the microscopic organisms attack more profoundly into your body, entering your circulatory system, joints, bones, lungs, or heart. A developing number of something else sound individuals are creating life-threatening staph infections. Treatment ordinarily includes antimicrobial and cleaning of the infected zone

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Answer:

The answer for that is B :)

Explanation:

Below freezing is why!

Answer:

Moths go complete metamorphosis

Explanation:

Water table, also called groundwater table, upper level of an underground surface in which the soil or rocks are permanently saturated with water. The water table separates the groundwater zone that lies below it from the capillary fringe, or zone of aeration, that lies above it. The water table fluctuates both with the seasons and from year to year because it is affected by climatic variations and by the amount of precipitation used by vegetation. It also is affected by withdrawing excessive amounts of water from wells or by recharging them artificially

Answer:

A Gamete contains only a single (haploid) a set of chromosomes.

Explanation:

Because the two common gametes are sperm and ova

Auditory communication is the use of sounds to send and receive information. Auditory communication is particularly important in birds. They use sounds to communicate warnings, attract mates, signal other birds to flock together, and for other important purposes. Some of the sounds made by birds are called birdsongs.

I guess all the options are correct

He saw that the birds on the island had various beak shapes. He also observed that tortoises have various shells depending on their location.

What justifications offered by Thomas Malthus in his essay were taken up by Charles Darwin?

Darwin became aware of the significance of overcrowding and the need for diversity among people thanks to the work of Thomas Malthus. Darwin based his entire theory of natural selection on Malthus' concepts of using competition and the concept of survival in numbers.

In the Galápagos Islands quiz, how was the development of finches shaped by natural selection?

How did the evolution of finches on the Galápagos Islands change as a result of natural selection? Different heritable variations in birds allowed them to thrive and procreate more successfully in various settings.

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A protein that contains all nine essential amino acids is called a complete protein.

These essential amino acids cannot be produced by the body and must be obtained through the diet, so consuming foods that contain complete proteins is important for maintaining good health.

Examples of foods that contain complete proteins include meat, fish, eggs, dairy products, and some plant-based sources such as quinoa, soy, and chia seeds.

In contrast, incomplete proteins are those that lack one or more of the essential amino acids. Vegetarians and vegans can obtain all essential amino acids by eating a variety of plant-based protein sources throughout the day.

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When performing SDS-Polyacrylamide gel electrophoresis, beta-mercaptoethanol is used to break disulfide bonds in protein. Beta-mercaptoethanol is a reducing agent that acts to break the disulfide bonds and denature the proteins before loading the sample onto the gel.

 It is used to reduce protein disulfide bonds and denature proteins before performing gel electrophoresis. SDS-PAGE is a technique used to separate proteins based on their size using polyacrylamide gels and an electric field. SDS is an anionic detergent that denatures and unfolds proteins and provides a uniform negative charge to the protein molecules, allowing them to be separated based on their molecular weight. Thus, it is evident that option (a) is the correct choice.

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