Nematodes and arthropods both _____.A) are suspension feedersB) develop an anus from the blastopore (pore) formed in the gastrula stageC) have ciliated larvaeD) grow by shedding their exoskeleton

Explanation:

Recessive alleles lack the power to express the phenotypic traits of an organism. In order for the specific trait to be expressed, 2 copies of the recessive allele or homogenous recessive genotype is needed in the organism.

Answer:

Breed is the correct answer ( The last answer)

Explanation:

There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, species.

Hope this helps!

This is because a variety of components must be integrated in order to accurately interpret and respond to the signal in a timely and effective manner.

The first step in this process is for the signal to be received and interpreted by the cell. This involves the binding of the signal molecule to a specific receptor, which triggers a cascade of cellular responses. This involves the activation of certain proteins, which then act as mediators of the signal within the cell and help to direct the response.

Once the signal has been received and interpreted, it must then be transmitted to the target organelle or region of the cell. This is done by a variety of molecules such as hormones, neurotransmitters, and growth factors. These molecules are released from the cell and travel to their target where they bind to specific receptors. This triggers a series of responses in the target organelle or region.

Finally, the cell must respond appropriately to the signal. This involves the activation of specific genes, which then produce proteins that alter the cells physiology and behavior. This is a process of gene expression that is tightly regulated and allows the cell to respond rapidly and accurately to the signal.

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The complete oxidation of a 12-carbon fatty acid requires 5 rounds of Beta Oxidation and 6 rounds of the Krebs Cycle.

During beta oxidation, fatty acids are broken down into two-carbon units in the form of acetyl-CoA. Each round of beta oxidation produces one molecule of acetyl-CoA. Since a 12-carbon fatty acid would yield six acetyl-CoA molecules, it requires five rounds of beta oxidation.

The acetyl-CoA molecules produced from beta oxidation enter the Krebs Cycle (also known as the citric acid cycle or the tricarboxylic acid cycle). In the Krebs Cycle, each acetyl-CoA is fully oxidized, generating energy-rich molecules such as NADH and FADH2. Since six acetyl-CoA molecules are produced from the complete oxidation of a 12-carbon fatty acid, it would require six rounds of the Krebs Cycle.

Therefore, to fully oxidize a 12-carbon fatty acid, it would take 5 rounds of Beta Oxidation and 6 rounds of the Krebs Cycle.

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The statement "Most of the bones of the upper and lower limbs are formed by intramembranous ossification" is false.

Intramembranous ossification is one of the two main processes involved in bone formation, the other being endochondral ossification. Intramembranous ossification occurs when bone develops directly from mesenchymal connective tissue, without the presence of a cartilage precursor.

While intramembranous ossification is responsible for the formation of certain flat bones of the skull, facial bones, and clavicles, it is not the primary mechanism for the development of most bones in the upper and lower limbs.

The bones of the upper and lower limbs primarily form through endochondral ossification. In endochondral ossification, the bone develops from a cartilage precursor. Initially, a cartilage model is formed, which is gradually replaced by bone tissue through a series of events, including the invasion of blood vessels and the deposition of osteoblasts and osteoclasts.

Therefore, the correct statement would be that most of the bones of the upper and lower limbs are formed by endochondral ossification, not intramembranous ossification.

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Answer:

Diploid cells

Explanation:

The daughter cells from mitosis are called diploid cells. Diploid cells have two complete sets of chromosomes.

Answer:

all white

If students are stuck on this one, advise them to make a "key" to help them sort it out.

PP = purple, Pp = purple, pp = white

Explanation:

The type of speciation that is the most likely cause of speciation in fishes in a lake with multiple species of fish that have all descended from a common ancestor is sympatric speciation.  Sympatric speciation refers to the process of speciation that occurs within the same geographic area or habitat.

In sympatric speciation, speciation occurs even in the absence of any physical or geographical barriers. It is most common in plant species, but it is also observed in some animal species such as fishes. In the context of the given question, the fish species in the lake are descended from a common ancestor and are found in the same habitat. Therefore, the most likely cause of speciation in these fish is sympatric speciation.

This is because sympatric speciation often occurs as a result of the development of new traits and behaviors within a population that become isolated from the rest of the population due to factors such as mating preferences, food preferences, or other factors. The main answer, therefore, is sympatric speciation.

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Answer:

El objetivo fue reducir la competencia interespecífica por recursos limitados (alimento). La evolución se produjo a través de la domesticación  

Explanation:

Muchos estudios han sugerido que la especie humana habría comenzado a domesticar a los lobos durante la última Edad de Hielo. Durante este período, ambas especies competían por recursos limitados. Al igual que los humanos, los lobos cazaban en manadas presas de gran tamaño. Recientes estudios sugieren que las poblaciones humanas habrían domesticado a los lobos usando una pequeña proporción del excedente de comida. De este modo, las poblaciones humanas pudieron reducir la competencia interespecífica por recursos limitados (es decir, por disponibilidad de alimento). La selección artificial (humana) de aquellos lobos más dóciles durante sucesivas generaciones permitió la domesticación del perro a partir de su antecesor el lobo salvaje. Los perros domesticados habrían cumplido en primera instancia funciones como guardianes y de ayuda durante la caza.

a. Endangered Species: African Elephant: The African elephant is a majestic species that is facing extinction due to various factors. Approximately 415,000 African elephants remain in the wild, with their population declining by 60% over the last 75 years.

b. According to the International Union for Conservation of Nature (IUCN), the African elephant is classified as vulnerable, and it is estimated that if current trends continue, they could be extinct within the next few decades.

The major cause of their future demise is the illegal wildlife trade, particularly the demand for ivory. Poaching for ivory has led to the killing of tens of thousands of elephants each year, resulting in severe population declines in many African countries. In addition to poaching, habitat loss and fragmentation, human-wildlife conflict, and climate change also pose significant threats to African elephants.

To help African elephants, several conservation efforts are underway. These include anti-poaching measures, habitat restoration, and community-based conservation programs. In addition, many countries have banned the trade in ivory, although enforcement of these laws can be challenging.

Vulnerable Species: Snow Leopard: The snow leopard is a vulnerable species that is found in the high-altitude mountain ranges of Central and South Asia. Approximately 4,000 to 6,500 snow leopards remain in the wild, with their population declining by 20% over the last three decades. According to the IUCN, the snow leopard is classified as vulnerable due to habitat loss and fragmentation, poaching, and retaliatory killings by herders.

The major cause of their decline is habitat loss and fragmentation due to human activities such as mining, agriculture, and infrastructure development. In addition, poaching for their pelts and body parts is also a significant threat to snow leopards. Retaliatory killings by herders who lose their livestock to snow leopards are also a major cause of their decline.

To help snow leopards, several conservation efforts are underway. These include habitat restoration, anti-poaching measures, and community-based conservation programs. In addition, the Snow Leopard Trust and other organizations are working to educate local communities about the importance of snow leopards and to promote sustainable development practices that minimize negative impacts on snow leopard habitat.

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Answer:

The answer is B. Allow the DNA to be transcribed to RNA and see what protein results.

Explanation:

Got it correct on the assignment, and sorry for the guy who didn't help with his answer.

Answer:

its b

Explanation:

i just did it

Answer:

self feeder; E from sun or chemicals - autotrophs

has a nucleus & membrane-bound organelles - eukaryote (5)

the smallest taxonomic division - species (4)

no nucleus or membrane bound organelles - prokaryote (6)

one organism living inside another, both benefit - mutualism

two term - binomial (1)

Explanation:

Answer: Transduction of sour and sweet tastes involves activation of a G protein called gustducin.

Explanation: The correct option is "Transduction of sour and sweet tastes involves activation of a G protein called gustducin." This option correctly describes the process of transduction, which is the conversion of a sensory stimulus into an electrical signal that can be interpreted by the brain. Gustducin is a type of G protein that is involved in the transduction of sweet and umami (savory) tastes, as well as sour tastes to some extent. Therefore, this option is directly involved in the perception of tastes.

Option A is incorrect because taste cells for sweet are not only located at the anterior tip of the tongue; rather, they are spread throughout the tongue. Option C is incorrect because afferent impulses related to taste are carried to the CNS by three different cranial nerves - facial (VII), glossopharyngeal (IX), and vagus (X) - and not trigeminal nerve (V). Option D is partially correct because olfaction does play a role in taste perception, but it does not explain the specific mechanism of taste transduction as mentioned in option B.

Answer:

When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen (e.g. amino acids, DNA). Various fungi and prokaryotes then decompose the tissue and release inorganic nitrogen back into the ecosystem as ammonia in the process known as ammonification.

Explanation:

Carbohydrates and amino acids have different structural characteristics and serve distinct roles in biological systems.

While carbohydrates have diverse structural variations and play important roles in energy storage and cell-cell recognition, amino acids contribute to the structural diversity of proteins and have a broader range of functions, including enzymatic activity, signal transduction, and molecular recognition.

Carbohydrates are indeed structurally versatile molecules. They can exist as simple sugars or form complex structures such as polysaccharides and glycoproteins. Carbohydrates are involved in various biological processes, including energy storage (e.g., glycogen) and cell-cell recognition (e.g., blood group antigens). Their structural diversity allows for a wide range of functions in different organisms.

On the other hand, amino acids are the building blocks of proteins and exhibit significant structural diversity within their chemical composition. While there are 20 commonly occurring amino acids, their arrangement and sequence in proteins give rise to a vast array of protein structures and functions. Amino acids contribute to the structural versatility of proteins and enable them to carry out enzymatic reactions, signal transduction, molecular recognition, and other essential biological processes.

In summary, both carbohydrates and amino acids exhibit structural versatility, but amino acids, as the building blocks of proteins, provide a broader range of structural variations and functional diversity in biological systems.

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True, Homeostasis is the body's ability to maintain a stable internal environment despite external changes.

This is achieved through a series of regulatory mechanisms that monitor and adjust the body's physiological processes to keep them within certain limits.

This includes regulating temperature, pH levels, and nutrient levels among other factors. The body achieves this through various mechanisms such as negative feedback loops and hormonal control.Homeostasis is essential for the proper functioning of the body's cells, tissues, and organs, and disruptions in homeostasis can lead to disease and other health problems.

In summary, homeostasis ensures that the body's internal environment is maintained within a narrow range that is necessary for optimal functioning.

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Answer:

An ecosystem

Explanation:

Answer:

D. an ecosystem

Explanation:

Just took the test and got a 100% on edge2020 :)))

Answer:

The statement is true

Explanation

the statement is wrong because the structure of DNA was discovered in 1953 by  James Watson and Francis Crick and they explained it very well. till 1985 everything about the structure of DNA was very well known and the scientist knew that the DNA of each person differs from each other.

Answer:

True!

Explanation:

Ever since many years before 1984, Scientists knew that DNA existed. In 1984, DNA was found to differ for each and every person.

(plus i put true on my test and got it right)

Hope this helped! :]

Answer: *CFS*?

1) Biodiversity is the variety of living organisms on Earth, including the diversity of species, genes, and ecosystems.

2) The destruction of ecosystems can lead to a decline in species populations, ultimately resulting in a loss of biodiversity.

3) Habitat loss and poaching of wild animals both generally lead to a decrease in biodiversity. Habitat loss means that ecosystems are destroyed or altered, which can result in the loss of species and genetic diversity. Poaching of wild animals can cause the decline or even extinction of certain species, which can have ripple effects throughout the ecosystem and lead to a reduction in biodiversity. Creating protected ecosystems, on the other hand, can lead to an increase in biodiversity. By preserving and protecting natural habitats, ecosystems can remain intact, and species can continue to thrive. Protected areas can also provide a sanctuary for threatened or endangered species, allowing them to recover and potentially increase in population size. Overall, protected ecosystems can play a crucial role in maintaining and enhancing biodiversity.

4) Degradation is the process of breaking down or deteriorating, typically resulting in a decline in quality, value, or condition.

5) Reducing fishing pressure on threatened and endangered marine species is generally a beneficial action. Overfishing can have significant negative impacts on fish populations and the overall health of marine ecosystems, and can even lead to the extinction of certain species. By reducing fishing pressure on threatened and endangered species, we can help to protect these species from further decline and allow their populations to recover. This can lead to a more sustainable and healthy marine ecosystem with greater biodiversity. Breeding diseases and parasites that can transfer to wild fish is generally a form of degradation. Introducing diseases and parasites to wild fish populations can have significant negative impacts on the health and survival of these species. It can also disrupt the balance of the ecosystem and affect the overall biodiversity of the area. In addition, diseases and parasites can spread beyond the target species, potentially causing harm to other aquatic organisms and even to humans who consume contaminated fish. Therefore, it is important to take measures to prevent the spread of diseases and parasites in aquatic environments and to promote the health of wild fish populations. Creating jobs in coastal communities and using other fish species to feed farmed fish can have both beneficial and degrading aspects, depending on the specific circumstances. On the one hand, creating jobs in coastal communities can be beneficial by providing employment opportunities for local residents and contributing to the economic growth of the area. This can help to reduce poverty and improve the standard of living for people living in these communities. On the other hand, some forms of aquaculture (fish farming) can have negative impacts on the environment, such as pollution from fish waste and the use of antibiotics and other chemicals. In addition, using other fish species to feed farmed fish can contribute to overfishing and the depletion of wild fish populations, which can have negative impacts on marine ecosystems and biodiversity. Therefore, it is important to carefully consider the potential environmental impacts of aquaculture and to implement sustainable practices that minimize negative impacts while maximizing the benefits. This might include using alternative feed sources that are less reliant on wild fish, adopting best practices for waste management and water quality control, and ensuring that farming practices are conducted in an environmentally responsible manner. By doing so, it may be possible to create jobs and support economic growth in coastal communities while also maintaining the health and biodiversity of marine ecosystems.

Being resilient means having the ability to adapt and recover in the face of adversity, stress, or challenging circumstances. Resilience is the ability to bounce back and regain one's footing after experiencing setbacks or difficulties. Resilience is not about avoiding problems or challenges, but rather about facing them head-on and using one's strengths and resources to overcome them. People who are resilient are able to maintain a positive outlook and a sense of purpose, even in the face of difficult situations. They are able to stay focused on their goals and remain flexible in their approach when faced with obstacles. Resilient individuals are also able to draw on their social support networks and seek help when needed, recognizing that asking for help is a sign of strength, not weakness.

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An isopod, often known as a terrestrial crustacean, is a type of non-insect arthropod and is the scientific name for the pillbug, Armadillidium vulgare (Latreille).

When I was a child, I named them pill bugs, while other people called them potato bugs. They may also go by the names tomato bugs, sow bugs, wood bugs, armadillo bugs, doodle bugs, roly-polies, carpenters, or boat builders in the United States and Canada.

There are no known risks that pill bugs bring to people. They don't spread disease or taint food. Due to its propensity to roll into a ball when disturbed, it is frequently referred to as a roly-poly.

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Answer:

chloroplast

Explanation:

What are chloroplasts?

Chloroplasts are cellular organelles that are present in plant cells only. Chloroplasts are a doubled membrane organelle that contains a matrix inside of itself called the stroma.

Inside the chloroplasts,  stacks of thylakoids are presently called the grana. Inside the grana, a green pigment is present. This is called chlorophyll.

Chlorophyll is the pigment responsible for carrying out photosynthesis in plants. Chlorophyll is able to trap sunlight, whose energy is used for splitting water molecules and the formation of glucose.

Therefore, chloroplasts are only present in plant cells. Chloroplasts are one of three types of plastids present in plants. The other types of plastid are chromoplast and leucoplast. Chromoplast is present in fruits and contain carotenoid pigments. Leucoplast is non-pigmented and is present in non-photosynthetic plant regions.

Answer:

the last phosphate bond is broken

Explanation:

Adenosine triphosphate, commonly known as ATP, is a high energy storage molecule. It is the form of energy usable by living cells to carry out their various life functions. ATP is synthesized in living systems during the process of cellular respiration.

ATP is a chemical compound that contains an Adenine base, ribose sugar, collectively called Adenosine, and three phosphate groups. Hence, the name Adenosine triphosphate. The stored energy in ATP is released when the bond holding the last phosphate group is broken. This releases a phosphate group and Adenosine diphosphate (ADP) molecule.

Answer:

b

Explanation:

i just did it

By analysing the synaptic inputs it receives and turning them into an output signal, a neuron can function as an integrator.

1. Convening:

2. Temporal Summation: When two stimulations are closely spaced apart, a greater depolarization results than with just one stimulation.

3. Spatial Summation: Although two stimuli occur concurrently, they do so at different locations (If spatial summation and temporal summation occur at the same time then you would get an action potential).

4. Convergence: This happens when a neuron combines several synaptic inputs into a single output.

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Answer:

Breathing in and eating food

Explanation:

To sum it up easily is the reactants for cellular resperation is glucose (sugar) and Oxygen. First we get oxygen from breathing (Obviously). Second we get glucose from eating foods.

The pharynx is where the air and food channels intersect. Air may enter the pharynx via breathing, which always occurs through the mouth or nose. The transition from an airway to a food channel occurs during swallowing. Thus, option D is correct.

The oxygen you breathe is used by your body cells to convert the food you consume into energy. It is known as cellular respiration.

The cell uses oxygen during cellular respiration to metabolize sugar. The energy your body need is created when sugar is broken down.

That implies that you must use more effort to breathe in enough of it when eating. Your lungs and diaphragm are crammed by the food in your stomach, which makes it tougher for them to do their jobs.

Therefore, breathing in air and eating food activities provide the reactants for cellular respiration.

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Answer: becteria

Explanation:

pasteur diveded micro-organisms in to severel group of and control groups.

Answer:

Punnet square

Explanation:

I am pretty sure this is it

By using Punnett square we can determine the probability that an organism's expressed version of a trait will be passed on to its offspring.

Reginald. C Punnett invented the Punnett square, a square shape diagram used to forecast the genotype and phenotype of offspring from a breeding experiment by crossing the genes of the parents.

The diagram's number of Punnett squares is determined by the number of attributes employed. After creating the boxes, one parent's gene is placed on top and the other parent's gene is placed on the left side.

In the event of a monohybrid cross, just one letter with a single characteristic crosses one box, whereas two letters with two separate traits cross one box.

The number of alternative genotypes of offspring is obtained by crossing the characteristic.

Thus, the Punnett square helps in determining the probability that a trait will be passed on to its offspring.

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Answer: wheres the file?

Explanation:

The answer is False.

The lymphatic system plays an important role in the immune system. This system is made up of glands and vessels that work together to drain lymph fluid into the circulatory system. The thoracic duct drains lymph from most of the body, apart from the right upper limb, right breast, right lung and right side of head and neck.

The quadrant system divides the stomach into four parts. The right upper quadrant consists of the right lobe of the liver, gallbladder, pylorus, duodenum, head of the pancreas, hepatic flexure of the colon, parts of the transverse and ascending colon. So, the right upper quadrant includes the part of the body where the thoracic duct collects lymph.

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Answer:

If your kidneys don't work well, those things can stay in your blood. That condition is called uremia, or uremic syndrome.

Explanation: