What is a feature of both insects and arachnids?​

Answer:

all of the above, there all advantages of using fat for fuel

Explanation:

The advantages of using fat for fuel for cells are as follows: Fat fuel provides twice as much energy in comparison to carbohydrates.

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To promote a closer association of nucleosomes, heterochromatin protein 1 (HP1) recognizes the histone modification found in H3K9me3.

Heterochromatin protein 1 (HP1) is a chromatin-associated protein that plays a key role in the organization of chromatin structure. HP1 binds to chromatin via its chromodomain, which specifically recognizes histone modifications. One of the main modifications recognized by HP1 is the methylation of histone H3 at lysine 9 (H3K9me3). This modification is associated with transcriptional repression and the formation of heterochromatin, which is a more compact and condensed form of chromatin.

In conclusion, the recognition of the histone modification H3K9me3 by HP1 promotes a closer association of nucleosomes and plays a crucial role in the organization of chromatin structure.

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Upper and lower motor neurons make up the descending pathway. The correct answer consists of upper and lower motor neurons.

The descending pathways that originate from the brainstem and cortex are the source of these modulations of the spinal reflexes, which can be either facilitatory or inhibitory. Intentional development and a few tangible-driven reflex activities are likewise constrained by the plunging pathways.

From the upper motor neurons of cortical structures like the cerebellum and cerebrum, descendent tracts convey motor information to efferent nerves. This information can get to muscles thanks to the descending tracts, which send it to lower motor neurons.

Descending pathways are collections of myelinated nerve fibers that connect the spinal cord and the brain or brainstem, transferring motor information to the muscles of the effector. They can be broken down into two categories: Extrapyramidal and pyramidal tracts, both voluntary and involuntary.

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Answer:

Explanation:

wow

Answer:

hi

Explanation:

Sarcodines are more like sporozoans because both do not have any external locomotory organs. Some of their species are parasitic in nature.

Sarcodines are the organisms of the superclass Sarcodina of the sub-phylum Protozoa. They are characterized by their ability to form pseudopodia for locomotion and entrapment of food. They are free-living as well as parasitic. The examples include: Amoeba, Entamoeba histolytica, etc.

Sporozoans are the organisms of the class Sporozoa. The organisms are identified for their endo-parasitic nature. They do not have locomotory organs and therefore are sessile. They have alternate sexual and asexual life cycle. The examples include: Plasmodium, Monocystis, etc.

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Brainstem, limbic system, and cerebral cortex are the order of the brain's regions in chronological order of age.

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Answer: c melting ice

Explanation:

Answer:

Explanation:

Spring and neap tides are both caused by the alignment of the moon. Spring tides are tides that occur when the moon is aligned with the earth and the sun, allowing the gravitational pull from the moon and the sun to reinforce each other and make an overall higher tide that is paralell to the alignment of the earth, moon, and sun. During a spring tide the moon is either a new moon or a full moon. During a neap tide the moon is half full, either waxing or waning, and the tidal bulge is perpendicular to the sun win the moon 's alignment to the sun is perpendicular from earth's point of view.

Answer:78% nitrogen 21% oxygen 0.9% argon and 0.1% other gases

Explanation:

Answer:

It's DNA.

Explanation:

DNA is the most recent utility to determine the origin of an organism and it's powers compared to it't weaknesses.

Nowadays, it is the primary tool:

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.

Answer:

A group of individuals of the same species living in the same area is called a population.

Explanation:

A population is a single species that has a vast majority in a single area.

Answer:

he maize is more likely to proliferate because of the human effect.

Explanation:

If both maize and teosinte are grown in the wild, teosinte is more likely to proliferate. This is because teosinte has certain adaptations that make it better suited to the wild environment.

Maize and teosinte are both members of the grass family, but they differ in several important ways. Maize, also known as corn, is a domesticated crop that has been selectively bred over thousands of years to produce larger, more desirable ears for human consumption. Maize has a much larger ear size than teosinte, and its kernels are also larger and more closely packed together.

Hence, if both maize and teosinte are grown in the wild, teosinte is more likely to proliferate. This is because teosinte has certain adaptations that make it better suited to the wild environment.

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When iodine is added to a cooked leaf in alcohol, a blue-black color develops. This signifies that the leaf produces starch.

The presence of starch is evidence that plants engage in photosynthesis. Now, iodine solution is applied to perform the starch test. Iodine turns blue-black instead of its original yellow color when starch is present. Green leaves cannot display this color change. Therefore, the leaf is cooked in alcohol using a water bath to eliminate the green pigment that is found in the leaf. The alcohol dissolves the green pigments, which causes the leaf to lose its color.

Sunlight is converted into energy through the process of photosynthesis by plants, algae, and some microbes. During the process, food (sugars) and oxygen are chemically converted from water and carbon dioxide (CO2) to each other. The pigment chlorophyll, which gives the plants their green hue, is frequently used in the chemical reaction. Our planet's atmosphere is abundant in oxygen because of photosynthesis.

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Answer:

B

Explanation:

Natural selection occurs when there is competition, limited food. Thus A and C are wrong. D is also wrong, genetic variation has major influence.

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Answer:

b

Explanation:

Answer:

(C.) using solar panels for heat

Explanation:

k 12 quiz

Having a large yard is an example of something that can promote sustainable development. Thus, the correct option is D.

Sustainable development is an organizing principle for the meeting of the human development goals while it is also sustaining the ability of the natural systems to provide the natural resources and ecosystem services on which the human economies and society depends as a whole.

A yard is an open place which has fencing around it, with the grasses and small shrubs around as well. Having a large yard will not only meet the requirements of the human beings however it also be in favor of the environment as there will be no construction over that area due to the yard.

Therefore, the correct option is D.

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The statement that is not true regarding glycogen and its catabolism is B. Muscle, but not liver, has the enzyme glucose 6-phosphatase.

Glycogen is a branched polymer of glucose and serves as the storage form of glucose in both the liver and muscles. The liver stores and releases glucose into the bloodstream to maintain blood glucose levels while the muscles use glycogen as an energy source for muscle contraction.

Glycogen catabolism involves two main pathways: glycogenolysis and glycolysis. Glycogenolysis is the breakdown of glycogen into glucose-1-phosphate, which is then converted to glucose-6-phosphate. Glucose-6-phosphate can be used in glycolysis or converted to glucose for release into the bloodstream by the liver. Glycolysis is the breakdown of glucose into pyruvate, which generates ATP, the energy currency of the cell.

The statement in option B is incorrect because both liver and muscle have the enzyme glucose 6-phosphatase. This enzyme converts glucose-6-phosphate to glucose, which can be released into the bloodstream by the liver to maintain blood glucose levels or used by the muscle for energy. In summary, glycogen plays a critical role in maintaining blood glucose levels and providing energy for muscle contraction. Glycogen catabolism involves glycogenolysis and glycolysis pathways.

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RNA viruses called retroviruses have the reverse transcriptase enzyme inside of them.

RNA can be transformed into DNA by reverse transcriptase, which can then be incorporated into the chromosome of the host cell. An enzyme found in the genetic material of retroviruses called reverse transcriptase, also known as RNA-directed DNA polymerase, is responsible for facilitating the transcription of retrovirus RNA (ribonucleic acid) into DNA (deoxyribonucleic acid). The hybrid's RNA strand is then degraded by reverse transcriptase, also known as RNase H. Then, double-stranded DNA is created using the single-stranded DNA as a template (cDNA). Many different creatures, including viruses, bacteria, mammals, and plants, have been shown to have reverse transcriptases. As a result, complementary DNA is created when an RNA template is used to create DNA through reverse transcription.

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Answer:

 Which of the following best describes the function of the human nervous system?

Explanation:

The nervous system collects and responds to information about the internal and external environment

Renewable resources are resilient to environmental stress. Therefore, option "C" is correct.

The energy produced by natural resources such sun and water is known as renewable resources. They are never finishing forms of energy and can be continuously replenished.

As non-renewable resources are on the verge of vanishing, there is an urgent need to innovate renewable sources of energy. The types of renewable resources are solar energy, wind energy, hydro energy, thermal energy, and biomass energy.

The benefits of renewable energy are less pollution, reusable sources of energy, less production of greenhouse gasses, and being environmentally friendly.

Renewable resources are more sustainable than non-renewable resources.

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Option d: The highest number of things are stored in long-term memory.

In contrast to iconic memory (visual sensory memory), short-term memory (temporary storage for present tasks), and intermediate-term memory (transitional storage), long-term memory has a capacity that appears to be limitless.

People may save and recall a vast range of things because to long-term memory's enormous storage capacity, expanding their general knowledge and unique experiences. The long term memory is very useful in day to day life experiences also.

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Long-term memory holds the largest number of items compared to other memory stores.

In psychology, memory is divided into different stores or stages. The three main memory stores are sensory memory, short-term memory, and long-term memory.

Sensory memory holds information from our senses for a very brief period. It allows us to retain a snapshot of our sensory experience, such as the visual image we see or the sound we hear, for a short time.

Short-term memory, also known as working memory, holds a limited amount of information for a short duration. It is responsible for temporarily storing and manipulating information needed for immediate tasks. For example, remembering a phone number long enough to dial it.

Long-term memory is the storehouse of our memories that can last for a lifetime. It has a much larger capacity compared to short-term memory. Long-term memory is where we store information and experiences that we have encoded and consolidated over time. It includes our knowledge, skills, personal experiences, and everything we have learned throughout our lives.

Therefore, the memory store that holds the largest number of items is long-term memory.

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Answer:

These names are important because they allow people throughout the world to communicate unambiguously about animal species.

To classify a new, single-celled organism as prokaryotic or eukaryotic, a biologist would need to examine the characteristics of the organism. The most effective procedure to classify the organism would be to observe the cell structure of the organism under a microscope.

If the organism lacks a true nucleus and other membrane-bound organelles, it is likely a prokaryote. Prokaryotic cells are generally smaller and simpler in structure than eukaryotic cells. They lack a true nucleus and other membrane-bound organelles, and their genetic material is typically found in a single circular chromosome.

If the organism possesses a true nucleus and other membrane-bound organelles, it is likely a eukaryote. Eukaryotic cells are generally larger and more complex in structure than prokaryotic cells. They have a true nucleus and other membrane-bound organelles such as mitochondria, chloroplasts (in photosynthetic organisms), and endoplasmic reticulum.

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The release of a neurotransmitter from a neuron is an example of which physiological property exhibited by a neuron, the given statement is true because  this property is called exocytosis a process in which a neuron releases neurotransmitters into the synaptic cleft to transmit signals to another neuron.

Exocytosis is This process occurs at the axon terminal, where neurotransmitters are stored in vesicles. When an action potential reaches the axon terminal, it triggers the release of calcium ions, which then causes the vesicles to fuse with the cell membrane and release the neurotransmitters into the synaptic cleft.

The neurotransmitters then bind to receptors on the post-synaptic neuron, leading to either an excitatory or inhibitory response. This release of neurotransmitters is essential for communication between neurons and plays a crucial role in the overall functioning of the nervous system. In summary, the given statement is true, the release of a neurotransmitter from a neuron is a physiological property exhibited by a neuron, and the specific property is called exocytosis.

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The release of a neurotransmitter from a neuron is an example of the physiological property of secretion exhibited by a neuron known as synaptic transmission. This statement is true.

Synaptic transmission is the process by which neurons communicate with each other in the nervous system. It involves the release, diffusion, and binding of neurotransmitters to receptors on the postsynaptic neuron, which then triggers specific cellular responses. Neurotransmitters are chemical messengers that allow for the transmission of signals across the synapse, the junction between two neurons. When an action potential reaches the presynaptic terminal of a neuron, it triggers the release of neurotransmitters into the synapse.

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Answer: Clonal progagation

Explanation:

Clonal propagation involves the production of identical individual without the fusion of germ cells. It can be multiplication through stem and other plants part such as leaves.

Strawberry as a fruits can be multiplied using the stems thus preventing the germ cells from genetic recombination that could lead to the formation of entirely new plants. It does not involve the union of male and female germ cells.

Answer: B. Sedimentation

Explanation:

Answer:

Independent variable: Adding/not adding soil.

Dependent variables: Does the plant grow? Amount of leaves, plant length.

Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.

Explanation:

Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.

Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.

Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.

Answer:

C.) Electron, Neutron, Atom, Molecule, Cell

Explanation:

Electrons are smaller than the protons and neutrons, neutrons are bigger than the electrons, Atoms are made up of electrons, protons, and neutrons, Molecules are made up of atoms, and cells are made up of molecules

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The following is arranged in the correct order by size, from smallest to largest electron, Neutron, Atom, Molecule, and Cell. The correct option is C.

The substances that form matter and living things are atoms and cells, respectively. These are the basic and smallest particles to create matter.

Protons and neutrons are larger than electrons, but electrons are smaller than neutrons. Protons, neutrons, and electrons make up an atom. Atoms make up molecules, and molecules make up cells.

The smallest of all are the subatomic particles which are electrons, protons, and neutrons. They constitute atoms. That's why they are called subatomic particles.

Thus, the correct option is C.  Electron, Neutron, Atom, Molecule, Cell.

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All offspring will have red eyes because red is dominant and white eye color is a recessive trait.

In genetics, when one allele is overriding the effect of another allele of the same gene, then it is called a dominant allele. While recessive alleles are those alleles that can not express themselves in the presence of a dominant allele.

Recessive traits can be expressed only when both alleles are recessive and homozygous, while dominant alleles can express themselves in both homozygous and heterozygous conditions.

In Drosophila melanogaster commonly known as the fruit fly, red eye color is dominant, and white eye color is recessive. So, Whenever a gene contains one red allele and one white allele, then red color dominates white eye color. Hence, all offspring will have red eyes.

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