⚠️⚠️ QUESTION IS IN THE IMAGE ⚠️⚠️

Answer:

A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep. The content and function of dreams are not fully understood, although they have been a topic of scientific, philosophical and religious interest throughout recorded history.

Explanation:

Answer:

Medicine

Engineering

Botany

Metallurgy

Zoology

Astronomy

Explanation:

Edge 2020

Chromosomes that are not involved in sex determination are called autosomes. Autosomes are responsible for carrying genes that control the inheritance of non-sex-related traits and characteristics.

In humans, there are 22 pairs of autosomes, numbered from 1 to 22, in addition to the sex chromosomes (X and Y).

Autosomal chromosomes are present in both males and females and contain a wide range of genetic information that influences various aspects of an individual's physical and biological characteristics.

These chromosomes play a crucial role in determining traits such as eye color, height, hair type, and susceptibility to certain genetic disorders, among many others.

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As the ghrelin levels rises , neurons in the arcuate nucleus are activated ,leading to a (n) increase in appetite level.

As ghrelin level (which is a hormone that is produced by the  stomach  and releases. ghrelin signals your brain when your stomach is empty and it indicates that it time to eat food. Ghrelin levels increase between mealtimes and decrease when your stomach is full.)rises ,neurons in the arcuate nucleus are  activated ,leading to a (n) increase in appetite level.

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The full question is below

As the ghrelin levels rises , neurons in the _________ are activated ,leading to a (n) ___________ in appetite level.

A substance fills a 1-liter bottle. A scientist transfers the substance to a 2-liter bottle. The substance increases in volume and fills the new space.  the state of matter of this substance is Gas.

A pure gas can be composed of individual atoms (like a noble gas like neon), elemental molecules comprised of a single type of atom (like oxygen), or compound molecules made of a number of different elements (e.g. carbon dioxide). There are numerous pure gases present in a gas mixture like air. The enormous space between each individual gas particle is what sets gases apart from liquids and solids. A colourless gas is typically invisible to a human observer because of this gap. The plasma state, which establishes the upper temperature boundary for gases, is where the gaseous state of matter lies between the liquid and plasma states.

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The only option that could never be part of the bark is the Secondary Xylem. Here option B is the correct answer.

Cortex: The cortex is the region of tissue located between the epidermis and the vascular tissues (xylem and phloem) in the stem or root of a plant. It is commonly present in the bark, providing structural support and conducting materials. Therefore, the cortex can be part of the bark.

Secondary Xylem: Secondary xylem, also known as wood, is responsible for providing structural support to the tree. It is formed internally to the bark by the vascular cambium. While it is an essential component of the tree trunk, it is not part of the bark itself.

Primary Phloem: Primary phloem is the outermost tissue of the vascular bundle, responsible for transporting sugars and other organic compounds produced by the leaves. It is commonly present in the bark and contributes to its composition. Therefore, the primary phloem can be part of the bark. Therefore option B is the correct answer.

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Complete question:

Which of the following could never be part of the bark?

A) Cortex

B) Secondary Xylem

C) Primary Phloem

D) Phelloderm

E) Secondary Phloem

Answer:

Explanation:

This is because ionic bonds have high melting point because they are held together by strong electrostatic force which hold the opposite charges together. This make the lattice to have lot of ions and alot of energy is required to overcome it, hence they have high melting and boiling points.

Ionic bond is a bind that have electrostatic attraction between atoms of opposite ions.

Answer:

B

Explanation:

Proteins are made of chains of amino acids.

If mutation is the only factor affecting this population from generation to generation, evolution would happen at a rate that we would not be able to detect in the evolution of allele frequencies.

A pair of genes known as an allele can be found on a given chromosome in a place known as the gene locus. The same features in kids are under their control. Gene, Gene Locus, Chromosomes, Genotype, Heterozygous Genotypes, Diploid Organisms, DNA are some of the terminologies used. Alleles are different gene forms. A mutation is an adjustment to the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA's genome. Either DNA or RNA makes up viral genomes. Errors that occur during DNA replication or virus replication, mitosis, meiosis, or other types of DNA damage, result in mutations.

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Adrenal medulla is a endocrine gland produces adrenaline and cortisol.

The adrenal cortex is the largest and most visible component of the adrenal gland. It is separated into three zones: the zona glomerulosa, the zona fasciculata, and the zona reticularis. Each zone is in charge of manufacturing certain hormones.

The adrenal medulla is found in the core of an adrenal gland, inside the adrenal cortex. It secretes "stress hormones," such as adrenaline.

The adrenal cortex and medulla are surrounded by an adipose capsule, which forms a protective barrier surrounding the adrenal gland.

The adrenal glands in your body are responsible for releasing various hormones directly into your bloodstream. Many of these hormones have to do with how the body reacts to stress, and some are necessary for survival.

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Answer:

Rabies virus

Hope this helps :) !!!

Answer:

None of the ss(-) RNA viruses have a 100% mortality rate as there are several factors that determine the severity of a viral infection, such as the health and immune status of the infected individual, the virulence of the specific virus strain, the availability and effectiveness of medical treatment, and other environmental factors.

Explanation:

While rabies virus has a very high mortality rate (approaching 100% if left untreated), some people have survived with early and aggressive medical intervention, and survival rates have been improving with better awareness, vaccination, and treatment approaches.

When reciprocal crosses produce identical results, one can conclude that the trait is inherited through autosomes (non-sex chromosomes) and not through sex chromosomes. Reciprocal crosses involve the exchange of the sex of the parents in a cross. For example, if a purebred brown-eyed male is crossed with a purebred blue-eyed female and their offspring are brown-eyed, a reciprocal cross would involve breeding the purebred brown-eyed female with the purebred blue-eyed male. If the offspring from this cross are also brown-eyed, then it can be concluded that the inheritance of eye color is not influenced by the sex of the parent. This is because, in both cases, the offspring inherit the same set of autosomal genes from their parents, resulting in identical outcomes. Therefore, the trait is not linked to the sex chromosomes but rather to the autosomes.

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Answer: one parent, identical

one parent, different

Explanation:

Asexual reproduction involves a single parent parent who undergoes cell division and produces multiple identical offsprings. The asexual reproduction occurs in single celled organisms like yeast, amoeba, bacteria, and others. Sexual reproduction is a process in which two parents are involved which undergoes gamete formation. In sexual reproduction cell division occurs in both parents individually in the germ cells to produce the gametes the egg in female and sperm in male. When the fusion of egg and sperm occurs the organism so produced after development of fusion product that is zygote is different from both parents genetically and morphologically. Sexual reproduction can occur in both single celled (bacteria) and multicellular organisms (angiosperms, humans).

The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.

Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.

Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.

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Answer:

false

Explanation:

The statement "Energy cycles through ecosystems because it returns to the Sun" is definitely false.

An ecosystem may be defined as a type of place or an area where members of different species live together and interact with one another for the purpose of food, shelter, space, and mating partner.

The ultimate source of energy for the living being is delivered by the sun. But the sun never takes this energy in any form. It is true that the energy cycle in the ecosystem but does not passes to the sun. It gets cycled through living organisms like plants, animals, and microorganisms.

The plants captures the energy from sunlight through photosynthesis, herbivores take energy from plants, carnivores take energy from herbivores, and the microorganisms get energy from dead and organic matter.

Therefore, the statement "Energy cycles through ecosystems, because it returns to the Sun", is definitely false.

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Answer:

Explanation: Scientific name consists of two parts. The first is genus name and second is species name. It is always written in italics (if typed) or underlined (handwritten). The first letter of genus name is always capitalized.

Answer:

Scientific names follow a specific set of rules. Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species.

Explanation:

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B. During SDS-polyacrylamide gel electrophoresis the smallest proteins move faster towards the positive electrode.

SDS- polyacrylamide gel electrophoresis( SDS- runner) is a popular  system for separating proteins by molecular weight. It works on the idea that when exposed to an electric field, SDS attaches to proteins and gives them a  invariant negative charge, allowing them to be sorted depending on size.

 SDS- runner involves mixing a protein sample with an SDS- containing  result and hotting  it to denature the proteins and break them down into their subunits. After that, the sample is put onto a polyacrylamide gel that's  squeezed between two electrodes and exposed to an electric field. lower negatively charged proteins move  hastily than bigger negatively charged proteins through the gel towards the  appreciatively charged electrode.

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The two features would the scientist use to distinguish a plant cell from an animal cell are the presence or absence of a cell wall and chloroplasts. Thus option B is correct.

Chloroplasts are the membrane bound organelle present only in photosynthetic organism like plants and algae; They are located in mesophyll cells of leaves and have a high concentration of chlorophyll pigment which absorb sunlight and absent in animal cell.

Chloroplast has extra-nuclear DNA, these are semiautonomous in nature; They synthesize food that is glucose by the process of photosynthesis by absorbing sunlight into chemical energy.

It is major  house  which involve in the production of NADPH and molecular oxygen (O2)  released by the photolysis of water; It also produces ATP from photosynthesis.

It also indirectly participate in generation of carbon and sugar molecule during the Calvin Cycle or dark reaction of photosynthesis.

Thus option B is correct.

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Adding acetyl groups to histone proteins that interact with the insulin gene's dna causes the dna to coil less tightly. The following will happen to gene expression: This will enhance insulin gene expression and result in higher insulin protein production.

The insulin gene is almost entirely expressed in pancreatic β-cells. Metabolic regulation of insulin gene expression enables β-cells to maintain adequate stores of intracellular insulin to meet their secretory needs.

In a subset of genes, insulin negatively affects transcription. For others, the effect is positive. Insulin controls gene transcription by altering the binding of transcription factors to insulin response elements or by modulating their transcriptional activity.

High blood sugar stimulates insulin gene expression in pancreatic β-cells. Although several transcription factors are involved in glucose-induced transcription of the insulin gene, the exact molecular mechanisms leading to the upregulation of insulin gene expression are unknown.

Histone acetylation is an important epigenetic modification that modulates gene expression by altering chromatin structure and opening and closing chromatin structure. It plays an important role in cell cycle progression and differentiation.

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The life process that generates the raw materials and energy needed to sustain all other life processes is known as Metabolism.

Metabolism may be defined as a type of chemical process that takes place inside the body of living organisms in order to keep them alive. It includes repairing cells, digestion of foods, breathing, etc.

Metabolism is a type of life process that significantly generates the raw materials and energy that are needed in order to sustain all other life processes. This process introduces changes that make energy and the materials cells and organisms need to grow, reproduce and stay healthy.

There are two categories of metabolism: catabolism and anabolism. Catabolism is the breakdown of organic matter, and anabolism uses energy to construct components of cells, such as proteins and nucleic acids.

Therefore, the life process that generates the raw materials and energy needed to sustain all other life processes is known as Metabolism.

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Answer:

Reproduction

Explanation:

All All living things must be able to reproduce.

The aquatic animal that recently underwent a dramatic color change in a laboratory setting is the Hawaiian bobtail squid.

The Hawaiian bobtail squid is a small, nocturnal cephalopod that has a symbiotic relationship with bioluminescent bacteria. The squid is able to control the intensity of the bacteria's light emission to match the amount of moonlight or starlight above, which helps the squid avoid being seen by predators. However, scientists recently discovered that the squid also has the ability to change the color of its skin from brown to bright red in response to environmental stressors.

This finding could have significant implications for the study of animal behavior and physiology, as well as for the development of new technologies that rely on color-changing materials.

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Answer:

Antarctica Bones

Explanation:

Antarctica Bones Give Evidence of Continental Drift By Philip J. Hilts March 21, 1982 Scientists have found bones of the first land mammal ever discovered in Antarctica, the dramatic and long-sought animal evidence to confirm the theory of continental drift.

Explanation:

2. a plant cell has a cell membrane and a cell wall

is a true statement