A neuron is ______
A. pluripotent
B. multipotent
C. unipotent
D. totipotent

Answer:

Nuclear division will not occur in that cell

Please find the explanation below

Explanation:

Mitosis is a type of cell division in which two genetically identical daughter cells form from a single cell. The mitotic process occurs in stages, which includes the PROMETAPHASE described in this question. Prometaphase is the second stage of mitosis i.e after prophase and before metaphase.

Prometaphase stage is characterized by the degradation of the nuclear envelope in order to allow the sister chromatids to be separated into opposite poles. Also, a protein called KINETOCHORE forms at the centromere in order for the microtubules to attach to them in subsequent stages.

If an inhibitor is introduced into the cell at PROMETAPHASE stage, the activities described above, which are important for the separation of the chromatids, will not occur. Hence, the likely effect on the cells is INABILITY of NUCLEAR DIVISION TO OCCUR.

The most likely outcome of the addition of an inhibitor to Aurora B in prometaphase of a cell undergoing mitosis is the fact that sister chromatid arms would not separate (Option B).

In conclusion, the most likely outcome of the addition of an inhibitor to Aurora B in prometaphase of a cell undergoing mitosis is the fact that sister chromatid arms would not separate (Option B).

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Answer:

It starts with a bend in a river then the river erodes the bend until it goes through the bend and the old bend keeps its water and becomes a lake

Answer:

here you go

Explanation:

when you get a meander the lake slowly erodes from the inside, because water will always want to take the faster route( which would be straight ) the lake will slowly cute off the meander while dumping the rivers load forming an oxbow lake

Answer:

covalent bond

Explanation:

hope this wiil help you

Energy transformation is the transfer of energy from one form to another.

As a result, the energy transformation sequence is as follows:

1. convert radiant energy to chemical energy

2. conversion of chemical energy to kinetic energy

3. conversion of kinetic energy to gravitational potential energy

4. conversion of gravitational potential energy to kinetic energy

The image is also attached:

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That oxygen helps your body to release chemical energy that is stored in sugars and other carbon based molecules. The energy is released to produce ATP. This process of using oxygen to produce ATP by breaking down carbon-based molecules molecules is called cellular respiration.

In Science, cellular respiration can be defined as a series of metabolic chemical reactions that typically occur in both prokaryotic and eukaryotic cells within living organisms, in order to produce energy in the form of adenosine triphosphate (ATP).

Generally speaking, the first step of cellular respiration is a biological and chemical process that is referred to as glycolysis.

In conclusion, we can reasonably infer and logically deduce that all living organisms such as humans, animals, eukaryotes, etc., breathe in oxygen and exhale carbon dioxide in order to survive, which occurs through a process that is referred to as cellular respiration.

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Answer: The A, B, and Rh antigens are located on the surface of red blood cells.

Explanation:

Vasodilation, enhanced vascular permeability, and increased renal excretion of salt and water are at least three of the acute mechanisms through which atrial natriuretic peptide (ANP) reduces plasma volume.

The NPPA gene in humans encodes the natriuretic peptide hormone known as atrial natriuretic peptide (ANP) or atrial natriuretic factor (ANF), which is secreted by the cardiac atria.

In order to discriminate between the effects of ANP-dependent increases in vascular permeability and those of other endocrine actions of ANP in the regulation of plasma volume, authors of a study in this issue of the JCI carried out a knockout of the ANP receptor in vascular endothelia. Reduced vascular permeability to plasma protein was seen in the knockout animals, which led to chronically elevated plasma volume, arterial hypertension, and cardiac hypertrophy.

These modifications were not explained by vasodilation or renal excretion. Thus, ANP's capacity to reduce arterial blood pressure may depend on the extent to which it enhances endothelial permeability.

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Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.

The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.

The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.

When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.

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Omnivores are organisms that feed on several prey items. In the exposed example, C is the omnivore and feeds on A, D, and B.

Omnivore organisms are those who can feed on any kind of items, going from vegetable species to different animal species. In this last case, depending on the species, the diet might include invertebrate and vertebrates.

In the exposed example we can see that

C is the omnivore organisms in this web since it feeds on autotroph (A), herbivores (D) and carnivores (B).

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Among the given options, the statement that Abigail is most likely to include on the flyer for acupuncture aftercare is C. "The dog or cat may exhibit sleepiness for a day or two after treatment."

Abigail is tasked with creating an aftercare flyer for new patients after their first acupuncture treatment at a holistic veterinary clinic. The purpose of the flyer is to provide helpful information to owners and minimize the need for phone calls and inquiries.

This statement is relevant and important because it informs pet owners about a common post-treatment effect of acupuncture, which is temporary sleepiness in their pets.

By including this information, Abigail can prepare owners for this normal reaction and alleviate any concerns they may have. It helps manage their expectations and ensures that they don't worry unnecessarily if their pet appears sleepy after the treatment.

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In this case, we are talking about modification of the pathogen therefore the correct answer is the second option,

Plants exhibit various types of tropic responses, which are directional growth movements in response to external stimuli. Here are four types of tropic responses commonly observed in plants:

1. Phototropism: Phototropism is the growth response of plants towards or away from a light source. Typically, plant shoots exhibit positive phototropism, meaning they grow towards the light, while roots exhibit negative phototropism, growing away from the light. The hormone auxin plays a crucial role in mediating phototropic responses by redistributing growth hormones unevenly in plant tissues.

2. Geotropism/Gravitropism: Geotropism, also known as gravitropism, is the response of plants to gravity. Plant roots exhibit positive geotropism, growing towards the pull of gravity, while shoots exhibit negative geotropism, growing against the force of gravity. The differential distribution of auxin in response to gravity influences the growth patterns in roots and shoots.

3. Thigmotropism: Thigmotropism is the response of plants to touch or mechanical stimuli. It involves directional growth in response to contact with solid objects. For example, tendrils of climbing plants exhibit thigmotropic responses by coiling around supports for stability and attachment. Thigmotropism is often mediated by changes in the growth hormone auxin.

4. Hydrotropism: Hydrotropism is the growth response of plants towards or away from water. Roots typically exhibit positive hydrotropism, growing towards moisture, which aids in water absorption. This response allows plants to effectively navigate their roots towards water sources and ensure their survival in water-scarce environments.

These tropic responses are critical for plant survival and adaptation to their environment. They enable plants to orient their growth towards essential resources such as light, gravity, mechanical support, and water, maximizing their chances of obtaining necessary nutrients and ensuring optimal growth and development. The mechanisms underlying these tropic responses involve complex interactions between hormones, growth factors, and environmental cues, allowing plants to respond and adapt to their surroundings.

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All of the options are chemical approaches to control micro-organism excepts: B Disinfectants

19. The scientific name for modern man is: B. Homo sapiens

20. kingdoms are prokaryotic organisms placed D. Monera

21. Plants which have true roots, leaves, stem & seeds inside the fruit are: B. Angiosperm

22.  taxonomic groups contains closely related organisms A. Genus

23. Malaria causing single-celled parasitic protozoan is called: D. Plasmodium

24. kingdoms consists of eukaryotic organisms such as yeast, molds, and mushrooms A. Kingdom fungi

25. Ecology is a biological science that deals with except: D. none

26. The organism that are consumer is D. Scavengers

Disinfectants are special chemicals that are used to kill germs or prevent them from growing on surfaces or objects. They are not usually used to control microorganisms within living things, unlike antibiotics, antiseptics, and autoclaving, which are all chemicals used to control microorganisms.

Homo sapiens is the fancy name used by scientists to refer to regular, everyday humans This is the species that humans are a part of.

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18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants

19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens

20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera

21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm

22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class

23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium

24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population

25. Ecology is a biological science that deals with all of the following except Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista C. organism D. none​

26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers

Making an observation and asking a question is a part of the scientific method that is best illustrated by the biologist wondering why there were so few frogs in the second year compared to the first. Thus, the correct option is A.

The scientific method may be defined as the procedure of objectively confirming attributes through testing and experimentation. It includes observation, hypothesis, prediction, operating an experiment, and finally investigating the results.

A biologist collected the data on the frog population before industrialization, but after a year there should be a considerable reduction in the population of frogs observed by a biologist. The cause of it is also determined by the biologist very well.

Therefore, the correct option for this question is A.

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Given,

H = brown hair

h = red hair

Mother: Hh (heterozygous It’s given)

Father: hh (homozygous, given)

Homozygous means alike allele whereas heterozygous means unalike or distinct from one another.

So, in the punnet square below, it is shown that there is a 50/50 chance for the offspring to have red hair.

Ratio is 1:1.

But there is also another probability for the offspring to be like their mother, have the dominant gene of black hair overruling the recessive gene of red hair.

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A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.

Answer: B

Answer: Food chain can be defined as an order of transfer of energy in the form of food among organisms at different trophic levels.

Explanation:

The plants, animals and decomposers are components of the food chain. The  biomass in plants and animals after their death or death of any part of them get converted into simpler molecules by the action of the decomposers.

Decomposers break down the complex organic molecules into simple molecules and further break them to atomic levels, which can again absorbed by the plants through soil.

Answer:

The parietal lobes are primarily responsible for receiving and processing sensory input such as touch, pressure, heat, cold, and pain. The parietal lobes are also involved in the perception of body awareness and the construction of a spatial coordinate system (mental map) to represent the world around us

Answer:

The parietal lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The parietal lobe is positioned above the temporal lobe and behind the frontal lobe and central sulcus. ... The name comes from the parietal bone, which is named from the Latin paries-, meaning "wall".

Explanation:

Answer:

 More appropriately called interphase. The interval in the cell cycle between two cell divisions when the individual chromosomes cannot be distinguished, interphase was once thought to be the resting phase but it is far from a time of rest for the cell.

Answer:

The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.

On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.

The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.

The particulate nature of matter explains that when a substance gets heated it particles gets energised and they move away from one another in a random manner, hence the correct options are

What happens to particles when they are heated

With an increase in temperature, the particles move faster as they gain kinetic energy, resulting in increased collision rates and an increased rate of diffusion.

With an increase in temperature, the particles gain kinetic energy and vibrate faster and more strongly

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Answer: D Endoplasmic reticulum (ER)

Explanation: It moves proteins throughout the cell

Type of macromolecules available in the sample is Starches.

Macromolecules are very large molecules that are important for biophysical processes such as proteins and nucleic acids. It is made up of thousands of covalently bonded atoms. Many macromolecules are polymers of small molecules called monomers.

Biopolymers are abundant, naturally occurring large cellular components that perform a variety of functions essential for the growth and survival of organisms. There are four main classes of biopolymers: carbohydrates, lipids, proteins and nucleic acids.

Proteins, carbohydrates, lipids and nucleic acids are the four most important macromolecules. They perform important functions such as providing structural support, providing storage fuel, storing and retrieving genetic information, and accelerating biochemical reactions.

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Answer:

Natural protein fibers.

Explanation:

Fibers such as wool, hair,and silk, are made of protein. These are all natural fibers.

Hope this is correct. Wishing you the best.

Answer:

Explanation:

There are two fibres which are made up of protein. They are present in vegetables and animals.

Examples of vegetable protein fibre :

Examples of animal protein fibre :

and so many more

Answer:

The correct answer is - the placenta, the site of exchange of materials between the mother and the fetus.

Explanation:

In the given diagram there is a representation of a human embryo developing in the uterus. Different parts are numbered and the number three represents the site of exchange of materials between the mother and the fetus and this organ is called the placenta. It is the organ that develops between fetus and uterus during pregnancy that allows substances such as nutrients, to diffuse from the mother's blood to the fetus and connected by the umbilical cord.

Answer:

Habituation is defined as a decrement in response as a result of repeated stimulation not due to peripheral processes like receptor adaptation or muscular fatigue. It is a process occurring within the nervous system (in animals with nervous systems).