explain why myelinated is faster than unmyelinated

The butterfly begins its life as a larva or a caterpillar. A caterpillar molts as it grows. When it reaches its full size, it forms into pupa and undergoes metamorphosis where the butterfly begins to form. A grasshopper however, is an insect that undergoes incomplete metamorphosis where it hatches from an egg and goes through the three nymphal stages. Each of the nymphal stage shows a smaller version of the insect and becomes larger as it grows. The third stage will show the adult form of the grasshopper.

As we know the virus known as SARS-CoV 2 belongs to the family of coronavirus, this means that is a monocatenary RNA virus which confers it a high mutation rate, as was a new type of virus there was no antiviral known to be effective or vaccine which leads to catastrophic consequences, nonetheless, vaccines were developed in a quite short time, however, the virus keeps mutating and even when vaccines are effective preventing grave forms of Covid-19, the mutations have made the new virus strains more infectious that is to say they are transmitted easier in other cases also are more aggressive as was the case of delta variant, in some other, the symptoms are not grave even more the disease can go unnoticed like sile omicron or BA.2 which allows a greater rate of infection. In conclusion, the mutations have changed the time of incubation, the severity of the symptoms, vulnerable groups, and infection rate, a fact that has allowed the virus to continue active.

The environment can either be biotic or abiotic. These make up an ecosystem. The community of living organisms in an ecosystem is making an interaction with their abiotic environment as well as with the other living organisms present in the ecosystem.

Answer - False

Well, first we have to consider that when we talk about positive and negative feedback, usually we refer to homeostasis, which's a kind of balance our bodies do regarding physiological processes.

Having this in mind, we use the term negative feedback to signal the balance of nutrients (e.g. oxygen, minerals), pressure, and temperature, our blood does to achieve the normal equilibrium of this in our body.

In the same way, when we say positive feedback, we refer to those processes that our body carries out to keep or maintain the influence of a stimulus.

The movement of water in celery happens because of the capllary action in the xylem, the water moves up from the roots through the stem and into the branches and leaves. Therefore, the answer for the question is A (the water would be flowing upwards towards the leaves).

The scientific name of this species is Lycosidae.

Wolf spiders are hairy, range in size from around half an inch to two inches, and typically have different markings or strains of brown to gray hue. Mother wolf spiders carry their bulky egg sacs around with them. When the spiderlings hatch, they climb onto their mother's back and travel until they are about halfway grown.

Wolf spiders have developed the ability to survive in almost any place. While some species live in volcanic lava tubes, others are found on cold, stony mountaintops.

Ecosystems - Birds, reptiles, and rodents make up the prey of wolf spiders. Food web - Spiders are carnivorous creatures that eat a variety of creatures. They prey on specific types of top consumers. Spiders are therefore secondary buyers.

To learn more about Wolf spiders visit: https://brainly.com/question/28946826

#SPJ9

When the DNA or RNA sequences are altered, the resultant amino acid can occasionally change as a result. A completely new sequence of amino acids may be produced as a result of how the ribosome interprets the mRNA sequence.

The amino acid sequence of the protein that the gene codes for can be altered by changes to the DNA sequence of that gene, a process known as mutation. A single DNA letter can change in a point mutation. They can be divided into three categories: Missense mutations alter a protein's single amino acid. DNA sequence modifications are known as mutations. Viral infection, mutagen exposure, or errors in DNA replication during cell division can all lead to mutations.

As a result, option C, which reads: "A change in the DNA sequence affects the RNA sequence, which occasionally results in a change in the resultant amino acid," is the right statement.

LEARN MORE ABOUT MUTATION HERE:

https://brainly.com/question/17130462

#SPJ1

The types of transport can be classified into two groups: passive transport and active transport.

All the processes in the question requires energy, but the only one that does not occur in plants is the 1. Locomotion, since a plant do not move on its own.

The geologic time scale was developed after scientists observed changes in the fossils going from oldest to youngest sedimentary rocks. They used relative dating to divide Earth's past in several chunks of time when similar organisms were on Earth.

Scientists divide Earth's entire 4.6 billion years into four major time periods. The oldest — and by far the longest — is called the Precambrian. It is divided into Eons known as the Hadean (HAY-dee-un), Archean (Ar-KEY-un), and Proterozoic (Pro-tur-oh-ZOE-ik). After the Precambrian come to the Paleozoic Era and Mesozoic Era.

In interpreting rock age the use of relative dating puts the sequences of rocks layers into chronological order. Although the layers are no longer horizontal, geologists are able to determine their order.

Examples interpreted from rock strata provide a way to organize Earth's history. Analyses of rock strata and the fossil record provide only relative dates, not an absolute scale. phenomena can be observed at various scales using models to study systems that are too large or too small.

After seeing variations in the fossils as they moved from oldest to youngest sedimentary strata, geologists came up with the geologic time scale. Relative dating was used to split Earth's history into periods when comparable creatures were present.

Relative dating is used to chronologically organize the strata of rocks in order to understand rock age. Geologists can still discern the sequence of the strata, despite the fact that they are no longer horizontal.

Earth's history may be organized using examples derived from rock layers. The fossil record and the analysis of rock layers only reveal relative dates an absolute scale is not provided.

Therefore, to examine systems that are too huge or too tiny, events can be seen at multiple sizes using models.

Learn more about geologic time, here:

https://brainly.com/question/11195099

#SPJ2

In the question the options that are density-dependent factors (biotic factors) are:

- Disease;

- Predation;

- Competition for food;

- Competition for light.

All the other options are abiotic factors that can happen by events related to the geography and climate of the habitat.

Answer

Cells

Explanation

All living things, plants and animals are made up of cells.

A cell consists of three basic parts, 1. a nucleus - which is the center of the cell, and it contains chromosomes that carry genetic information. 2. a cytoplasm which is the medium for all the organelles, it consists of water and salts which makes up the solution that enclosing the cell. 3. the cell membrane, which is used by the cell to sepate the inner part of the cell from the outer part. So the cell consists of many other organelles like mitochondria.

Transitional species are the species that are considered as intermediate. They are the species in between two contrasting species.

Archaeopteryx is considered as a transitional species because their fossils are in between dinosaurs and modern birds. Tiktaalik are also considered as transitional species because they are in between fish and and early tetrapod.

Transitional species supports the theory of evolution. The fossils found are considered as evidence for evolution. Transitional fossils are debris of species that are present in between ancestral species and modern species.

Answer - Options 1, 2, 3, and 4.

The last option is not correct. Transitional species does not contradict the theory of evolution. It supports the theory of evolution. Transitional fossils are evidence for evolution. Transitional fossils are debris of species that are present in between ancestral species and modern species.

The red blood cells are made in the red bone marrow which is in the spongy bone. Therefore, the answer is C.

All living things on Earth are alike because, even though there are a lot of different adaptations which have result in different morphologies, structures and physiological mechanisms, they all contain the same five kinds of nucleotides, but the sequence of nucleotide bases that conform the genes is different.

Only photosynthetic organisms use energy from the sun to make food, and although most of the organisms are aerobic, there are also some anaerobic.

So the correct answer is option C: contain the same five kinds of nucleotides.

The pain receptors are called as noniceptors that are known to exist in muscle, joints, ad skin. A noxious stimulus is known by receptors that are located on the cell membrane of the sonsory nerve ending.

Hair cells are the sonsory receptors of both the auditory system and vestibular system in the the ears of all vertebrates and lateral line organ of fishes.

During vision, rod and cone phoroceptors respond to light intensity and color.

Answer - Option 1 - bare dendrites of sensory neurons

Answer:

Heterozygous alleles

Explanation:

The root "hetero" means "different". Any pairing of alleles that contain both a dominant allele (R) and a recessive allele (r) is considered to be heterozygous. (Rr)

Similarly, the root "homo" means "same", indicating that any pairing of alleles that contains either two dominant alleles (RR) or two recessive alleles (rr) is considered homozygous.

Hope this helps!

The notation Rr in geneticists refers to heterozygous alleles. Therefore, the correct statement is in option A.

The notation Rr indicates that an individual has two different alleles for a particular gene that is inherited from each parent. The uppercase R indicates a dominant allele, whereas lowercase r indicates a recessive allele.

The notation Rr represents the individual in a heterozygous state for that gene, where one allele is dominant and the other allele is recessive. The dominant allele (R) masks the expression of the recessive allele (r), resulting in the expression of the dominant phenotype.

Rr genotype helps in understanding the patterns of inheritance and the probability of traits appearing in offspring. In this case, the dominant allele will express the phenotype of the organism, while the recessive allele will not be expressed in the phenotype of an organism.

Therefore, the notation Rr in geneticists refers to heterozygous alleles.

Learn more about heterozygous alleles here:

https://brainly.com/question/7602134

#SPJ5

Kudzu can be considered an autotroph because kudzu vine can cover forest plants and kill them by competing with them for sunlight. This vine has a significant impact on forest ecosystems.

Kudzu spreads swiftly and out of control by runners (stems that root at the tip when in contact with moist soil), rhizomes, and vines that generate new plants by rooting at the nodes.

Kudzu grows at a rate of one foot per day after it is established, and its mature vines can reach a length of 100 feet. Fast-growing invasive plants like kudzu outcompete anything from native grasses to fully developed trees by blocking the sunlight needed for photosynthetic activity.

To learn more about Kuduz visit: https://brainly.com/question/17388120

#SPJ9

The deforestation of rainforest ecosystems for logging and farming has had a direct effect that is desertification of the areas.

The deliberate clearance of forested terrain is known as deforestation. Forests have been cleared throughout history and into the present era to make room for agriculture and animal grazing as well as to obtain wood for fuel, manufacture, and construction. Around the world, deforestation has significantly changed the terrain.

A variety of issues for Indigenous people can result from the loss of trees and other vegetation, including climate change, desertification, soil erosion, less crops, flooding, and an increase in greenhouse gases in the atmosphere.

Agriculture expansion, wood extraction (such as logging or harvesting wood for domestic fuel or charcoal), infrastructure growth such as road construction, and urbanization are the direct causes of deforestation.

to know more about deforestation visit

https://brainly.com/question/17178423

#SPJ9

Abiotic factos are non-living chemical and physical parts of the environment that can affect the ecosystems and the living organims. The depth of a body of water, climate, width of a body of water and the seasons are all abiotic factors.

Abiotic factors are components of environment that are not living. Examples are water, soil, minerals, and nutrients.

ANSWER: Rocks.

Answer: rocks is correct

Explanation: penn foster answer

Xylem is a vascular tissue that transports water and minerals. It is composed of tracheids, vessel elements, and xylem parenchyma.

Features of xylem:

• conducts water ,(4)

• tracheids & vessel elements = both are hollow and elongated cells. ,(2,7,9)

• Dead at maturity, ,(10)

• Functions in transpiration, ,(1)

• Comprises wood ,(12)

Phloem is a vascular tissue that transports organic compounds like glucose from the site of photosynthesis to other parts of the plant. It is composed of sieve cells, companion cells, phloem parenchyma, and phloem fibers.

Features of phloem:

• Conducts carbohydrates and amino acids ,(3,6)

• Sieve tube members, sieve cells, companion cells = Connected as hollow tubes ,(2,5,11,13)

• Living at maturity ,(8)

To answer this question we need to remember come concepts first, cloning implies that an identical genetic individual is created, meanwhile, selective breeding means that only the members of a population that exhibit the desired trait will be crossed, which left us hybridization, this involves a cross between species or varieties, therefore this is the correct answer (option B).

The answer is the letter B. Electrical signals.

*Our brain and body communicates with each other by sending messages in the form of electrical signals.

Digestion is the process by which the digestive system assimilates the necessary substances (energy, minerals and vitamins) from the food consumed, which then are transfered by the circulatory system to every cell of the body.

To answer this question we need to remember a bit of the earth's history. In the first stages, Precambrian, on earth, there was no oxygen, nonetheless with the rise of photosynthesis by cyanobacteria the concentration increased, nonetheless it was a gradual process, now also there was an increase in carbon dioxide levels at the end of the Mesozoic due to intense volcanic activity along with other factors. So taking this into consideration we can say that the correct answer is the third option, as a volcano is a sudden event and if large enough maybe it won't change all the atmosphere, but can generate a local change.

Answer: Myelonic

Explanation:

The three main differences between plant and animal cells are:

1. Plant cells have a cell wall, a structure that's located outside the plasma membrane to protect the cell. Animal cells will never show a cell wall.

2. Plant cells have chloroplasts, organelles needed for photosynthesis to take place. This is what makes a plant an autotroph. Animal cells will never show a chloroplast.

3. Plant cells do not have centrioles and centrosomes, but animal cells do. Also, plant cells always shows one or a few large vacuoles, while in animal cells vacuoles are small and in a large number.

Species that are extinct are species that no longer has any specimen alive anymore, which means that this living beings won't ever be present on Earth again. But it doesn't happen out of nowhere. The species goes through some of all of those definitions, as a warning that we must act to avoid extinction. As vulnerable are species that are facing a high-risk, but stil it isn't an imminent risk, so C it's not the closest. Threatened are species that are likely yo become endangered, not extinct, so D isn't the answer as well. Special concern are species that aren't even threatened or endangered yet, so E isn't the answer too. Endangered species are facing an imminent danger of becoming extinct, but still being extirpated may be even more concerning, because extirpation can be a consequence of overlooking a situation of endangered species and it is also a way in which a species can be extinct (they tend to disappear from specific areas until there are no more areas where they can be found anymore). So, the correct answer is a) Extirpated.