Which of the following explains why an apple looks red? The apple reflects red light and absorbs all other visible wavelengths. The apple absorbs red light, and reflects all other colors of light.. The apple is absorbs all visible wavelengths, but absorbs red light better The apple is reflects all light that hits its surface.​

The beetle has the greatest fitness in the evolutionary sense is B. A green beetle that produces 20 offspring every year in its 5 year lifespan

In the evolutionary sense, fitness refers to an organism's ability to survive and reproduce in its environment. Therefore, the beetle with the greatest fitness would be the one that produces the most offspring over the course of its lifetime. Based on the options provided, the beetle with the greatest fitness would be B. A green beetle that produces 20 offspring every year in its 5 year lifespan. This beetle would have a total of 100 offspring over the course of its lifetime (20 offspring x 5 years = 100 offspring), which is more than the other beetles listed.

While the other beetles may have other advantageous traits, such as a longer lifespan or greater size, the most important factor in determining fitness is the number of offspring produced. Therefore, the green beetle in option B has the greatest fitness in the evolutionary sense.

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Multiple sclerosis and allergic reactions to pollen are examples of immune system malfunctions.

1. Multiple sclerosis (MS): MS is an autoimmune disease in which the immune system mistakenly attacks the protective covering of nerve fibers in the central nervous system.

This leads to communication problems between the brain and the rest of the body, resulting in a wide range of symptoms such as fatigue, muscle weakness, coordination and balance issues, and cognitive impairment.

2. Allergic reactions to pollen: Allergic reactions occur when the immune system overreacts to substances that are typically harmless, such as pollen.

In the case of pollen allergies (also known as hay fever or allergic rhinitis), the immune system identifies pollen as a threat and triggers an immune response, releasing histamines and other chemicals that cause symptoms such as sneezing, itching, nasal congestion, and watery eyes.

These examples highlight different types of immune system malfunctions.

In the case of MS, the immune system mistakenly targets the body's own cells (autoimmunity), while in allergies, the immune system overreacts to harmless substances (hypersensitivity).

These malfunctions can lead to chronic conditions and discomfort for affected individuals.

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Answer:

Biofilms are slimy, glue-like membranes that are produced by microbes in order to colonize surfaces. They protect microbes from the body's immune system and increase their resistance to antibiotics

Answer:

B&C

Explanation:

B explanation~

"The Kuiper belt is home to three officially recognized dwarf planets: Pluto, Haumea and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, may have originated in the region."

C explanation~

Image result for which is the only body in the solar system without an atmosphere.

Pluto

Pluto is a dwarf planet that lies in the Kuiper Belt, an area full of icy bodies and other dwarf planets out past Neptune.

Central sulcus is found between the pre-central gyrus and the post-central gyrus.

Folding of the cerebral cortex leads to the formation of gyri and sulci. This folding separates brain regions and improves brain surface and cognitive performance. The gyri and sulci form boundaries within and between lobes, dividing them in half. A prominent landmark in the brain, the median sulcus separates the parietal lobe from the frontal lobe and the primary motor cortex from the primary somatosensory cortex.

The central sulcus often continues for a short distance to the medial surface of the hemisphere. Anteriorly and posteriorly of this are the medial extensions of the precentral and postcentral gyrus that form a morphological unit known as the paracentral lobule.

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Answer:

The correct answer is D.) the curved surface of Earth.

Explanation:

The intensity of sunlight on Earth is affected by the curved surface of Earth, which causes the sunlight to spread out over a larger area. As a result, the intensity of sunlight is less at any given point on Earth's surface than it would be if Earth had a flat surface. This also explains why the poles receive less sunlight than the equator, as sunlight is spread out over a larger area near the poles due to the curvature of the Earth.

Factors such as the mass of Earth, the speed of Earth, and the number of rotations of Earth do not directly affect the intensity of sunlight on Earth.

Answer:

The phospholipid bilayer describes a structure with polar heads on the outside and non-polar tails on the inside (option a).

Explanation:

The plasmatic membranes of the cells behave as a semi-permeable barrier to the passage of substances, a characteristic that depends on the hydrophobic properties of its phospholipid bilayer.

Lipidic bilayers are formed by the union of phospholipids with a hydrophobic —non-polar— head and a hydrophilic or polar tail, so they are called amphiphilic.

The bilayer phospholipids are arranged keeping the head —with a phosphate molecule— on the outside while the hydrophobic tails, formed by a double chain of fatty acids, on the inside.

The other options are not correct due to the explanation above:

On the basis of the principle of complementary base pairing, you would expect the percentage of adenine in an individual’s DNA to be equal to the percentage of thymine.

The expression that denotes the complementary base pairing makes reference to the arrangement of nucleotides in the double helix of DNA.

In DNA, Adenine or A always pairs with Thymine or T (thereby the amount of A is equal to T), while Guanine or G always pairs with Cytosine or C (thereby the amount of G is equal to C).

Base complementarity is one of the most important rules in genetics and it is used to estimate nucleotide proportion, a process associated with gene expression in CpG islands.

In conclusion, on the basis of the principle of complementary base pairing, you would expect the percentage of adenine in an individual’s DNA to be equal to the percentage of thymine.

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Diversity is the first word out of Darwin's mouth at the end of his research travels.

How does evolution explain diversity?

The interactions between organisms and environment and the consequence of interactions over long periods of time explains duversity and evolution.

Darwin discovered the natural selection that explains the development of variety of organisms from a single common ancestor. The change in the environment provides a high variability of alleles that helps in evolving the new environment.

What is the Darwin's theory of evolution?

The process by which change in organisms due to the change in behavioral and physical traits.

Due to the change in environment individuals develop adaptive traits in order to survive and reproduce. These adaptive traits are advantageous to the upcoming population.

Darwin proposed that species change over time and new species come from pre-existing species sharing a common ancestor.

Hence, Darwin discovered diversity at the end of his research travels.

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If the amount of genetic divergence between species in all five pairs of species is similar, then vicariance is the likely cause.

The two hypotheses include:

The ancestors of the species living currently on the island subsequently dispersed to the island from the mainland. This can be the cause of dispersal.

The island was part of the mainland. The rise in sea level made it cut off. In this way, the species on the island diverged from the ancestors who lived on the mainland. This is called vicariance.

Divergence refers to the evolutionary process that resulted in two different species, from a common ancestral species, that are way more similar in their structure and functions. It can be a result of adaptation as per their environment. The geographical distribution of organisms can occur in two ways: either dispersal or vicariance. Vicariance happens when the ancestral species undergoes some changes to adapt to the environment and results in diverging two different species. Whereas, dispersal happens when the ancestral species move to another geographical area and breed accordingly.

Therefore, we can now say that if the amount of genetic divergence in some species is similar, they are likely to undergo vicariance.

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The order in which the analytes will be detected in capillary electrophoresis depends on their charge-to-mass ratio, with smaller and more highly charged molecules migrating faster than larger and less charged molecules.

In this case, the analyte that is singly positively charged will be detected first, as it will migrate towards the negatively charged terminal at the inlet due to its positive charge. The neutral analyte will not be affected by the electric field and will not migrate, while the singly negatively charged analyte will migrate towards the positive terminal at the outlet. The doubly negatively charged analyte will migrate more slowly than the singly negatively charged analyte due to its larger size and greater negative charge. So, in summary, the order in which the analytes will be detected in capillary electrophoresis is: the singly positively charged analyte first, followed by the neutral analyte, then the singly negatively charged analyte, and finally the doubly negatively charged analyte.

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10 dg is same as 1 gram. So, the correct option is (C).

Units of measurement are needed to measure the following quantities like speed, velocity, weight, temperature, etc. when the units of measurement used for measurement are based on preference and convenience as well as standards prescribed for certain processes and applications. does not eat , Converting such units to the extent that they can be directly understood and applied properly.

For accuracy and to avoid confusion in measurement, we convert one unit to another unit like we do not measure the length of a pencil in kilometer. In this case, kilometers (km) have to be converted into centimeters (cm).

Some unit conversions are:

1 kilometer = 1000meters

1 kilogram= 1000grams

1gram = 0.1cg or 1dg (cg= centigrams and dg=decigrams)

Thus, 10 dg is same as 1 gram. So, the correct option is (C).

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Answer:

I can't make out what is the question

Explanation:

The dependent variable that could be measured to specifically test the hypothesis is the height of the plants.

To test the hypothesis that plants receiving more water will grow taller than those receiving less water, the dependent variable to be measured would be the height of the plants. This variable directly relates to the hypothesis as it represents the growth and development of the plants. By measuring the height of the plants in each group, it can be determined whether the amount of water they receive has an impact on their growth.

In a controlled experiment, two groups of plants would be established: one group receiving more water and the other group receiving less water. The independent variable in this case would be the amount of water provided to each group. The height of the plants would then be measured at regular intervals, such as weekly or monthly, to observe their growth progress.

By comparing the average height of the plants in each group over time, it would be possible to assess whether there is a significant difference between the plants that receive more water and those that receive less water. If the plants receiving more water consistently show greater height than the other group, it would support the hypothesis that increased water availability promotes taller plant growth.

In scientific experiments, the dependent variable is the variable that is being measured or observed to determine the effect of the independent variable. In this case, the height of the plants serves as the dependent variable as it is directly influenced by the amount of water provided.

By measuring the plant height, researchers can assess the impact of water availability on plant growth and determine whether the hypothesis holds true. It is important to carefully design the experiment, control other factors, and use statistical analysis to draw accurate conclusions from the data collected.

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Answer:

observation : a toaster doesn't work

question : is something wrong with the electrical outlet

hypothesis : something is wrong with the outlet my coffee maker also won't work and plug into it

experiment : I plug my coffee maker into the outlet

result : a coffee maker works

2nd result : my toaster is broken

1.3.1. Identify the cells labelled 1 and 2 respectively The cell labelled 1 is the root hair cell, and the cell labelled 2 is the palisade mesophyll cell.1.3.2.

State TWO functions of the tissue named in question 1.3.1

The two functions of the root hair cell are as follows: It increases the surface area of the root, allowing for increased water absorption from the soil. The root hair cell absorbs water and nutrients from the soil, which are necessary for plant growth.1.3.3.

Describe TWO ways in which the shape of cell 1 differs from that of cell 2The two ways in which the shape of the root hair cell (cell 1) differs from that of the palisade mesophyll cell (cell 2) are as follows: Root hair cells are long and thin, while palisade mesophyll cells are shorter and wider. Root hair cells have a large surface area to volume ratio, whereas palisade mesophyll cells have a smaller surface area to volume ratio.1.3.4.

Briefly describe TWO ways in which cell 2 is adapted to perform its Function well in a plant The two ways in which the palisade mesophyll cell (cell 2) is adapted to perform its function well in a plant are as follows: Palisade mesophyll cells are found in the leaves of plants, where they perform photosynthesis. They contain many chloroplasts that are positioned close to the surface of the cell, allowing them to capture more light energy.

Palisade mesophyll cells are elongated, and they are packed tightly together, making them more efficient at capturing light energy for photosynthesis. They are also located near the top of the leaf, where they can receive the most light energy from the sun.

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Answer:

Haploid

Explanation:

hope this helped

Based on PBS, the three foods that would be considered good energy sources is bean, nuts, and green vegetables, these foods are recommended as they are high in fiber and low on the glycemic index that increase energy levels.

They are perfect for maintaining energy levels throughout the day without any sudden crashes. Basically, the glycemic index is a scale that ranks foods based on the impact they have on blood sugar levels. Foods that are high on the glycemic index are quickly digested and can cause a rapid increase in blood sugar levels followed by a quick crash. Nuts and beans are low on the glycemic index, and they contain healthy fats and protein, which provide long-lasting energy.

Green vegetables such as spinach, kale, and broccoli are high in nutrients such as iron, which is essential for carrying oxygen to the muscles. This makes them a great source of energy as they help maintain healthy blood flow, reduce inflammation and provide natural fuel to the body. In conclusion, incorporating beans, nuts, and green vegetables into your daily diet is an excellent way to increase energy levels. They provide lasting energy without sudden crashes and are nutrient-dense.

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The yellowish leaves observed in the mutant tomato plant could potentially be explained by mutations in the genes encoding a proton pump and an H/Mg2 cotransporter.

A cotransporter, also known as a symporter, is a type of integral membrane protein that facilitates the transport of multiple molecules or ions across a biological membrane simultaneously. It plays a crucial role in various physiological processes, including nutrient absorption, ion homeostasis, and signal transduction.

Cotransporters utilize the energy stored in the electrochemical gradient of one molecule or ion to drive the transport of another molecule or ion against its concentration gradient. This process is often referred to as secondary active transport. By coupling the movement of two or more molecules, cotransporters enable the efficient uptake or release of substances across the cell membrane.

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Answer: platelet,

Explanation: your immune system can get stronger meaning it could protect * but if your immune system is weak it can make an infection* so that's why i think its platelet.

As the skateboarder moves, several energy transformations take place within their body. Some of the energy transformations include:

1. Chemical energy to kinetic energy: When the skateboarder pushes off the ground, the energy stored in the chemical bonds of their muscles is converted into kinetic energy, which is responsible for their motion.

2. Kinetic energy to gravitational potential energy: As the skateboarder moves up a ramp, their kinetic energy is converted into gravitational potential energy.

3. Gravitational potential energy to kinetic energy: When the skateboarder moves down the ramp, the gravitational potential energy is converted back into kinetic energy.

4. Kinetic energy to thermal energy: As the skateboarder moves, they also experience frictional forces which convert some of their kinetic energy into thermal energy.

5. Chemical energy to thermal energy: The continuous movement of the skateboarder requires the energy stored in their muscles to be converted into thermal energy, which is released as heat.

I hope that the assistance I provided was helpful.

The motion of the skateboarder is powered by energy transformations that occur within their body. As the skateboarder moves, their body converts stored chemical energy (from food) into kinetic energy, which is the energy of motion. This conversion happens through a series of complex biochemical processes that occur within the skateboarder's muscles.

When the skateboarder pushes off the ground, their leg muscles contract, converting chemical energy stored in the form of ATP (adenosine triphosphate) into kinetic energy as the legs move and the skateboarder accelerates. As the skateboarder continues to move, the muscles in their body work together to maintain balance and control, converting chemical energy into kinetic energy and potential energy as the skateboarder jumps, turns, and performs tricks.

Additionally, the skateboarder's body also experiences other forms of energy transformation during this process. For example, as the skateboarder moves, their body generates heat through metabolic processes, which is a form of thermal energy. The skateboarder also loses energy through friction with the ground and air resistance, which is converted into heat and sound energy.

In summary, the motion of the skateboarder is powered by a series of complex energy transformations that occur within their body. These transformations involve the conversion of stored chemical energy into kinetic and potential energy, as well as the generation of heat and sound energy through friction and air resistance.

Answer:

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and converted into stored chemical energy, in the form of the electron carrier molecule NADPH (nicotinamide adenine dinucleotide phosphate) and the energy currency molecule ATP (adenosine triphosphate).

Answer:

Autogenic succession

Explanation:

Ecological succession refers to series of biological changes that occurs to a biological community. Based on the components that induce the occurrence of succession, succession can be of two types viz: autogenic or allogenic succession.

Autogenic succession is the succession that is self-caused by the biotic components of that ecosystem. As opposed to allogenic succession, which is caused by external abiotic factors (hurricane, flooding etc), autogenic succession is caused by the living organisms that make up such ecological community.

Autogenic succession

trust me

Answer:

Top Left Part: Frontal Lobe

Top Right Part: Parietal Lobe

Bottom Left Part: Temporal Lobe

Bottom Right Part: Occipital Lobe

Answer:

The answer is A.

Explanation:

(This definition I got from the web so credits to them)

A biome is an area classified according to the species that live in that location. Temperature range, soil type, and the amount of light and water are unique to a particular place and form the niches for specific species allowing scientists to define the biome.

Answer:

Yes, it is possible.

Explanation:

Bob could either be h.o.m.ozygous (BB) for brown hair or h.e.terozygous (Bb) for brown hair. If Bob is h.e.t.erozygous for brown hair, this means he has a blonde hair allele. For a child to be blonde, the child needs one blonde allele from each parent and this is possible if Bob has a blonde hair allele. However, it is not possible if Bob is h.o.m.ozygous for brown hair.

In the image, there is a punnet square showing the possible genotypes of the children if Bob is h.e.t.erozygous for brown hair.

Answer:

Explanation:

Researchers use a clock to estimate the date a rock or fossil was produced in order to ascertain its age. Radiometric dating methods, which are based on the natural radioactive decay of specific elements like potassium and carbon, are widely used by geologists to date ancient events.

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The correct pair of terms that completes the sentence is Amino acid and polypeptides.

The correct option is B .

Nucleotides are the building blocks of nucleic acids (such as DNA and RNA), while amino acids are the building blocks of proteins. Just as nucleotides combine to form nucleic acids, amino acids combine to form polypeptides, which are the precursor molecules for proteins. Therefore, the pair "amino acid" and "polypeptides" correctly completes the sentence.

Nucleotides are small organic molecules composed of a nitrogenous base, a sugar molecule, and a phosphate group. They are the building blocks of nucleic acids, which include DNA and RNA. Nucleotides link together through phosphodiester bonds to form the long chains of nucleic acids. On the other hand, amino acids are organic compounds that consist of an amino group, a carboxyl group, and a side chain (R group). There are 20 different types of amino acids commonly found in proteins. Amino acids link together through peptide bonds to form polypeptides. Polypeptides are chains of amino acids that can vary in length and sequence.

Hence , B is the correct option

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In the processing of eukaryotic mRNA, the following event does not occur: translation.

Translation: Translation is the process by which the genetic information in mRNA is used to synthesize proteins. This process occurs after mRNA processing and involves the ribosomes and tRNA molecules.

During mRNA processing, pre-mRNA undergoes several modifications to form mature mRNA, which include:

These modifications are essential for the proper expression of eukaryotic genes and the regulation of gene expression.

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