Pea crabs live their entire lives inside of an oyster. They live inside the oyster's gills and feed on the
food that filters in. Often as the oyster grows, its muscles and gills will become weak. This symbiotic
relationship is an example of
O Parasitism
O Predation
O Mutualism
O Commensalism

Answer:

4

Explanation:

Because AAG is 1 protein and GTA is another and so on

You count by three you have to group them in threes

Answer:

The discovery of the Double Dna Helix was done by Watson and Crick.

Answer:

Chargaff's realization that A = T and C = G, combined with the vital work of X-ray crystallography by English researchers Rosalind Franklin and Maurice Wilkins, contributed to the discovery of Watson and Crick a three-dimensional, two-helical DNA model.

Explanation:

Answer:

which one of the following favourite the fastest transpiration

Answer:

where are the options hmm

by the way the answer is Hot temperature, dry and windy environment causes fastest transpiration rate.

As we can see in the punnet square we have a recessive homozygous and a dominant homozygous, in the possible combinations that can have the offspring, that is to say the letters inside square we can see that all are heterozygus, e

B. Thymus is the lymphoid tissue/organ that does not contain reticular connective tissue.The thymus is a lymphoid organ that is located in the chest and is responsible for the maturation of T-cells, which are important components of the immune system.

The thymus is composed of two distinct regions: the cortex and the medulla. Unlike other lymphoid organs like the spleen, tonsils, and lymph nodes, the thymus does not contain reticular connective tissue. Instead, it is composed of epithelial cells that support the maturation of T-cells.

Tonsils are clusters of lymphoid tissue located in the oral cavity and pharynx that help to protect against infections. Lymph nodes are small, bean-shaped structures that are located throughout the body and help to filter lymph fluid and fight infections.

The spleen is the largest lymphoid organ and is located in the abdomen; it filters blood and plays an important role in the immune response. All these lymphoid tissues/organs contain reticular connective tissue.

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Answer:

Virus is a semi living microorganism which means that it is half dead and half alive.

Explanation:

The characteristics which make it alive are;

- They contain genetic material called DNA

- They reproduce earn present in a host cell.

-They affect the host living bodies by causing different diseases.

The plant with large spreading leaves which lacks obvious hairs or reflective surfaces or thick cuticle is most likely to have come from a tropical rainforest biome.

The characteristics of the plant described in the question are indicative of a plant that is adapted to a high moisture environment with plenty of sunlight. Plants in the tropical rainforest biome typically have large leaves to capture as much sunlight as possible for photosynthesis, and they do not need thick cuticles or hairs to retain moisture as there is an abundance of water in the environment.

In contrast, plants in the desert, taiga boreal forest, tundra, and prairie biomes typically have adaptations to retain water and protect themselves from harsh environmental conditions, such as thick cuticles, reflective surfaces, and hairs.

Therefore, the correct answer is a. tropical rainforest.

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The frequency of the heterozygous genotype in this population is 0.455, or 45.5%. This means that almost half of the individuals in the population are carriers of the recessive allele and could potentially pass it on to their offspring.

To calculate the frequency of the heterozygous genotype in a population at Hardy-Weinberg equilibrium, we need to use the equation p^2 + 2pq + q^2 = 1, where p and q represent the frequency of the dominant and recessive alleles, respectively.

We know that the frequency of the homozygous recessive genotype (q^2) is 0.4225, so we can take the square root of this value to get q, which is 0.65 (rounded to two decimal places). Since q represents the frequency of the recessive allele, p must be 1 - q, which is 0.35.

Now, we can use the equation to calculate the frequency of the heterozygous genotype:

2pq = 2 x 0.35 x 0.65 = 0.455 (rounded to three decimal places)

Therefore, the frequency of the heterozygous genotype in this population is 0.455, or 45.5%. This means that almost half of the individuals in the population are carriers of the recessive allele and could potentially pass it on to their offspring.

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Answer:

Phloem is the vascular tissue in charge of transport and distribution of the organic nutrients. The phloem is also a pathway to signaling molecules and has a structural function in the plant body. It is typically composed of three cell types: sieve elements, parenchyma, and sclerenchyma

Explanation:

mark me brainleist plz

Answer:

When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide. ... Oxygen helps our cells work harder by breaking down the nutrients we get from food like sugars. With sugars and oxygen, our cells can create the energy they need to function.

Explanation:

c

Answer:

to realize the Principle of Universality

Answer:

Provide protection and structure

Explanation:

Answer:

I believe the answer is c

Explanation:

because if you think about the experiment on an egg, it turns clear and jelly-like. there is lots of concentration in the egg and it goes through the egg cell wall thing and it just naturally happens without using energy.

yeah, I studied this last year haha...

Hope this helps!

The correct statement about the taxonomic classification system is option d. "Subspecies are the most specific category of classification."

The taxonomic classification system is a hierarchical system used to categorize and organize living organisms based on their shared characteristics and evolutionary relationships. It consists of several levels of classification, including kingdom, phylum, class, order, family, genus, and species.

"Subspecies are the most specific category of classification" is the correct statement. Subspecies are divisions within a species that represent geographically or genetically distinct populations within that species. Subspecies are the most specific level of classification, providing further differentiation within a species.

"There are more kingdoms than phyla" is incorrect. In the traditional taxonomic system, there are typically five or six kingdoms, such as Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria. However, the number of recognized phyla is much larger, representing various major branches of organisms.

"Classes are the top category of classification" is incorrect. The top category of classification is the kingdom. Classes are a lower-level category within a kingdom and are further divided into orders. "Classes are divisions of orders" is incorrect. Classes are higher-level categories that contain orders. They are a more general classification than orders. Therefore, the correct answer is option d.

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The life cycle of a star can be compared to that of a human in terms of distinct stages of development, each characterized by different physical and chemical changes.

The life cycle of a star starts with the formation of a protostar from a cloud of gas and dust and this stage can be compared to the prenatal stage of a human, as it is the beginning of the development process.

With the formation of protostar , it enters the main sequence stage, which can be compared to the early years of a human's life.

After the main sequence stage, stars with less than about 8 times the mass of the sun will evolve into red giants and this stage can be compared to the middle and later years of a human's life, as the star undergoes known changes.

In terms of relative surface temperature, main-sequence stars are generally hotter than red giants.

In terms of size, red giants are much larger than main-sequence stars.

In terms of elemental composition, main-sequence stars like the sun aremade up of  of hydrogen and helium, with trace amounts of heavier elements.

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Answer:

Troposphere

Explanation:

Almost all weather occurs in the lowest layer of the atmosphere, called the Troposphere. The exception being large storms like hurricanes and large Thunderstorms. These storms have clouds with great vertical development and the tops of these storms go into the Stratosphere.

Nociceptors are sensory receptors that respond to tissue damage or potential damage, and are primarily responsible for detecting and transmitting signals related to pain.

Nociceptors are specialized nerve endings that are activated by various stimuli, including mechanical, thermal, and chemical stimuli. When nociceptors are stimulated, they generate electrical impulses that are transmitted to the spinal cord and brain, where they are interpreted as pain sensations. Nociceptors are found throughout the body, including in the skin, muscles, bones, and internal organs. They are essential for protecting the body from potential harm by alerting the nervous system to potential injury or damage. However, nociceptors can also become overactive or hypersensitive, leading to chronic pain conditions such as neuropathic pain and fibromyalgia.

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Answer: Mouse

Explanation: Because a snake is a carnivore, it does not make sense for a snake to eat berries. However, by adding a mouse between berries and snake, the food chain will make sense.

Figure 1 is a graph that illustrates the relationship between two variables in a system, as indicated by the direction and shape of the plotted line.

The graph may be used to identify the correlation between variables, the rate of change, and the characteristics of a system.The horizontal axis, or x-axis, is the independent variable, while the vertical axis, or y-axis, is the dependent variable. As the independent variable changes, the dependent variable is affected and changes in a predictable manner. The slope of the line shows the direction and steepness of the relationship between the two variables.

A positive slope indicates that as the independent variable increases, the dependent variable also increases. A negative slope indicates that as the independent variable increases, the dependent variable decreases. A slope of zero indicates that there is no relationship between the two variables.

The shape of the line, whether linear or nonlinear, indicates the rate of change between the two variables. Nonlinear relationships may be curved, such as exponential, logarithmic, or polynomial functions, or they may be stepwise, as in a staircase function. Linear relationships, on the other hand, are typically straight lines with a constant slope.

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After food is digested, a carbohydrate called glucose will leave the bloodstream through a capillary wall.

Glucose is a simple sugar. It is a primary source of energy for cells. It is absorbed from the digestive system into the bloodstream and then transported to various tissues and cells throughout the body.

Through the process of cellular respiration, glucose is used by cells to produce ATP. ATP is the energy currency of the cell. Excess glucose in the bloodstream can be stored as glycogen in the liver and muscles or converted into fat for long-term energy storage.

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The prairie's soil, water, atmosphere, and other inanimate components are the answer that best represents an ecosystem.

An ecosystem is a group of living things that interact as a whole, including plants, animals, and microorganisms, as well as the nonliving elements of their environment, such air, water, and mineral soil. The nonliving elements of an ecosystem, such as the soil, water, and atmosphere, are essential for the sustenance and survival of the ecosystem's living creatures. In light of this, an ecosystem is made up of both living and nonliving components, not just plants and animals.

Therefore, the correct option is B.

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The M checkpoint, also known as the spindle assembly checkpoint, ensures that all chromosomes are properly attached to the spindle fibers before a cell proceeds from metaphase to anaphase during mitosis.

If a cell receives a stop signal at this checkpoint but continues to anaphase anyway, the potential consequence seen in daughter cells would be the presence of missing or extra chromosomes.

This occurs because the improper separation of sister chromatids can lead to unequal distribution of chromosomes among the two daughter cells. As a result, one cell may have more chromosomes, while the other may have fewer than the normal amount. This abnormality can cause various issues in the daughter cells, such as genetic disorders or malfunctioning cells.

In summary, the M checkpoint plays a crucial role in ensuring the correct distribution of chromosomes to daughter cells during mitosis. Bypassing this checkpoint can lead to daughter cells with missing or extra chromosomes, which can have detrimental effects on the cells' function and the overall health of the organism.

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Answer: A

Explanation:

trust

For the DNA sequence 5′-TATGGCATTCGATCCGGATAGCAT-3′ 3′-ATACCGTAAGCTAGGCCTATCGTA-5′ none of the given RNA molecules can be transcribed. The correct answer is D) none of the above.

The correct RNA molecule that can be transcribed from the given DNA sequence is (c) 5′-UACGAUAGGCCUAGCUUACGGUAU-3′.

To transcribe DNA into RNA, the complementary RNA strand is synthesized using RNA polymerase enzyme.

The RNA polymerase reads the DNA sequence in the 3' to 5' direction and synthesizes the RNA in the 5' to 3' direction.

During the transcription process, thymine (T) in DNA is replaced by uracil (U) in RNA.

The given DNA sequence is:

5′-TATGGCATTCGATCCGGATAGCAT-3′

3′-ATACCGTAAGCTAGGCCTATCGTA-5′

To transcribe the DNA sequence, we need to determine the complementary RNA strand.

The complementary RNA strand will have the same sequence as the coding DNA strand, but with uracil instead of thymine.

The RNA strand complementary to the given DNA sequence is:

5′-UAUGGCAUUCGAUCCGGAUAGCAU-3′

Therefore, the RNA molecule (a) 5′-UAUGGCAUUCGAUCCGGAUAGCAU-3′ cannot be transcribed from this piece of DNA.

The RNA molecules (b) 5′-AUACCGUAAGCUAGGCCUAUCGUA-3′ and (c) 5′-UACGAUAGGCCUAGCUUACGGUAU-3′ are not complementary to the given DNA sequence, and hence, cannot be transcribed from it.

Therefore, the correct answer is (d) None of the above.

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Option (a) is correct. Options (b) and (c) have different nucleotide sequences and option (d) is incorrect because there is at least one RNA molecule that can be transcribed from this DNA sequence.

The RNA molecule transcribed from the given DNA sequence will have the complementary base pairs to the DNA sequence, with U instead of T. So, the complementary DNA sequence would be:

5′-TATGGCATTCGATCCGGATAGCAT-3′

3′-ATACCGTAAGCTAGGCCTATCGTA-5′

And the RNA molecule transcribed from this sequence would be:

5′-UAUGGCAUUCGAUCCGGAUAGCAU-3′

Therefore, option (a) is correct. Options (b) and (c) have different nucleotide sequences and option (d) is incorrect because there is at least one RNA molecule that can be transcribed from this DNA sequence.

The given DNA sequence includes the following codons:

TAT-GGC-ATT-CGA-TCC-GGA-TAG-CAT

A-C-C-G-T-A-A-G-C-T-A-G-G-C-C-U-A-U-C-G-U-A

The process of transcription involves the synthesis of an RNA molecule using the DNA template. During transcription, the DNA is read in the 3′ to 5′ direction and the RNA molecule is synthesized in the 5′ to 3′ direction. The complementary RNA sequence to the DNA sequence can be obtained by replacing thymine (T) with uracil (U). The resulting RNA sequence would be:

5′-AUGGCCAUUCGAUCCGGAUAGCAU-3′

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Answer: 2:1

Explanation:

To analyze the source of the genetic material in an angiosperm endosperm the ratio would be 2:1

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Answer:it should b or c hope this helps let me know

Explanation: pls give me a brainliest

Vascular tissues are the ones used in the formation of flowering plant organs. The correct option is 2.

Vascular tissue is a complicated conducting tissue found in vascular plants that is made up of multiple cell types.

The xylem and phloem are the primary components of vascular tissue. Internally, these two tissues transport fluid and nutrients.

These tissues also help in the formation of flowering plants.

Thus, the correct option is 2.

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If you performed a PCR experiment starting with only one copy of double-stranded DNA, the number of DNA molecules present in the reaction tube after 14 cycles of amplification will be 16,384.

This can be calculated using the equation \(2^n\), where n is the number of cycles.

So, after 14 cycles, the number of DNA molecules would be \(2^n\) = 16,384. This is because each cycle of PCR doubles the amount of DNA present in the reaction tube.

It is important to note that this calculation assumes 100% efficiency in each cycle of amplification, which is not always the case in reality.

Additionally, the number of DNA molecules present can vary depending on the type of PCR and the starting amount of DNA.

Therefore, it is important to optimize PCR conditions to ensure accurate and reliable amplification of the target DNA.

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Answer:

water conservation begins at the individual level