what characteristics below distinguishes viruses from other types of parasites?


a.they need the blood of the host to survive

b.they need to live inside of the host to survive

c.they are not considered to be alive

d.they need a host to complete feeding

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

Which of the following best describes the product of DNA transcription

Answers

I’m pretty sure it’s an RNA molecule

Its an RNA molecule I took the test in the 9th grade  

Select an ecosystem that is familiar to you and describe the biotic and abiotic factors that exist there?

Answers

Answer:

Forest Ecosystem

An ecosystem is composed of two main components: biotic and abiotic factors. Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi, and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks, and water.

Biotic Factors by Type

The most obvious features of any forest ecosystem are its trees, the dominant biotic feature. They dominate the ecosystem: both in terms of visibility and in terms of biomass. However, they are only one type of organism living in a forest. Other biotic factors include:

shrubs , flowering plants , ferns , mosses , lichens , fungi , mammals , birds , reptiles , insects , worms , microbes

Abiotic Factors by Type

The most important abiotic feature of a forest ecosystem may not be obvious, despite its ubiquity and importance: sunlight. Tangible abiotic factors include soil, minerals, rocks, and water. But abiotic factors can be intangible, such as temperature, other types of radiation, and the chemistry of soil and water.

Biotic Factors by Function

Ecologists frequently group an ecosystem's factors by what role they play in the system, rather than by what particular species they are. This is known as a functional classification.

These functions relate to the movement of energy through an ecosystem, and trees — along with other photosynthetic plants — are the chief primary producers. This means that trees convert the sun's energy into food energy, which is then used by other members of the ecosystem.

These other members of the ecosystem can also be categorized. Primary consumers are, for example, herbivores that eat the primary producers. Secondary consumers are the carnivores and omnivores that eat the primary producers. Decomposers are the scavengers, microbes, and fungi that consume the droppings and the carcasses of other organisms.

Abiotic Factors by Function

The abiotic factors of a forest fall less obviously into functional classifications, but keep in mind that the energy transferred among the various biotic categories is itself a foundational abiotic element. This energy occurs in the form of solar radiation, which includes both visible light and heat (infrared).

Primary producers (plants like trees and shrubs) convert the light into carbohydrates, a form of energy that can be consumed by other organisms. The function of other abiotic factors relies on the minerals they contain, such as the nitrogen in the soil or the hydrogen in water molecules.

An ecosystem consist of various biotic and abiotic factors which interact with each other. A grassland ecosystem is a terrestrial ecosystem which have grass as the main producers (dominant) living thing.

What is a Grassland Ecosystem?

A grassland ecosystem is a type of terrestrial ecosystem in which grasses and the herbaceous plants are the dominant species. Grass controls the grassland ecosystems as they are the main producers of the ecosystem with few or no trees where there is not favorable conditions for a forest. It is more like a dry and desert ecosystem. Therefore, it is also called as a transitional landscape.

The four important abiotic components of grassland ecosystem includes climate, parent material and soil, topography, and natural disturbances. Climate includes the rainfall pattern, temperature and wind patterns of a particular area.

Biotic Factors in the Grassland ecosystem include Plants, Insects (Invertebrates), Grazers, and Predators.

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The valence of an element is equal to the number of ____
that an atom of
that element gains, loses, or shares while forming chemical bonds.

Answers

The valence of an electron is equal to the number of its group number. If it’s in group number 3, then it has 3 valence electrons.

why is a soda exploding/fizzing a physical change?

Answers

Answer:The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.

Explanation:

During meiosis, the chromatids of homologous chromosomes have just undergone crossing over. Which of the following phases will the cell enter next?

A: Metaphase I
B: Anaphase II
C: Prophase II
D: Telophase I

Answers

As I know the process of crossing over occurs in prophase 1 so the next phase will be metaphase 1
Hope this helps!!

Answer:

Metaphase I

Explanation:

Got it right on the test nun to worry about.

What would most likely happen if the number of shrimp decreased

Answers

Answer:

The population would decrease.

Explanation:

Answer:

the second one

Explanation:

hope this helps sorry if u get it wrong

PLEASE HELP IT IS DUE TODAY!

Answers

Answer:

niceee

Explanation:

Answer:

IT'S A OR C

Explanation:

im pretty sure its c though because those are chromosomes for a human

When observing a specimen under medium power, which adjustment knob should be used to focus the image? Why?

Answers

Answer:

The coarse adjustment knob should only be used with the lowest power objective lens. Once it is in focus, you will only need to use the fine focus. Using the coarse focus with higher lenses may result in crashing the lens into the slide.

Explanation:

What are the 2 reactants of cellular respiration? Where do you get them?

Answers

Hello friend! Hopefully this helps you get an idea, or maybe even help you out!

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

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Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a. acidification of the water
b. algae growth as a result of eutrophication
c. degraded quality of water for human and livestock consumption
d. improved water habitats for human recreation

Answers

Answer:

Answer D

Explanation:

improved water habitats for human recreation

D. Hope this helps :)

What are the five categories of adaptations?

Answers

Migration, hibernation, dormancy, camouflage, estivation ( aestivation)

The five categories of adaptations are migration, hibernation, dormancy, camouflage, astivation.

What is migration?

The term migration has been defined as when the birds, animals, or human beings leaves the native place and move towards a new place due to weather or other physical condition is known as migration. Generally, when it is too much cold the birds of that particular area migrated to the place where they found suitable temperature for their survival.

The stage of dormancy is the stage when seed gets closed and not able to germinate as it closes its outer wall. The term hibernation is defined as the particular time period in which the organism hybernate himself for a period of time when the weather or the outer environment is not safe, or fit for his survival.Generally, when it is too much cold the birds of that particular area migrated to the place where they found suitable temperature for their survival.

Therefore, The five categories of adaptations are migration, hibernation, dormancy, camouflage, astivation.

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What does the process of cell respiration provide for cells?

Answers

Answer:

Cells do cellular respiration to extract energy from the bonds of glucose and other food molecules. Cells can store the extracted energy in the form of ATP.

Which of the following correctly describes how glucose becomes the product of a chemical reaction?
O Photosynthesis creates glucose using energy, a solid, and a liquid.
O Photosynthesis creates glucose using energy, a gas, and a liquid.
O Cellular respiration creates glucose using a gas and a liquid.
O Cellular respiration creates glucose using a solid, and a liquid

Answers

Answer:

[tex]\boxed {\tt B. \ Photosynthesis \ creates \ glucose \ using \ energy, \ a \ gas,and \ a \ liquid}[/tex]

Explanation:

Glucose is made in the process of photosynthesis. It is used in cellular respiration, but not made. So we can eliminate choices C and D.

Now, let's analyze the photosynthesis equation so we can pick between A and B.

6CO₂+6H₂O+light energy ⇒ C₆H₁₂O₆+6O₂

A gas (carbon dioxide), a liquid (water) and energy are used to make glucose and oxygen.

No solids are used, so we can eliminate choice A. We are left with choice B. Photosynthesis creates glucose using energy, a gas, and a liquid.

Suppose we completely stopped burning fossil fuels immediately. How many years would it take to return to atmospheric CO2 levels from the year 1800, about 600 GtC? Use the Gizmo to find the answer.

Answers

Answer:

Explanation:

It would take 50 years to return to atmospheric CO2 levels from the year 1800. I know this because I set the fossil fuel usage to 0 and proceeded to simulate 50 years and that’s when the atmospheric CO2 levels returned to 600 GtC.

As per observation It could take 50 years to go back to atmospheric CO2 degrees from the yr 1800.

Each year, there has been no extrade in the quantity of CO2 withinside the ecosystem because of soil and land plants. coal also can be the answer.

What is co2 quantity ?

Since 2000, the worldwide atmospheric carbon dioxide quantity has grown with the aid of using 43.5ppm, an growth of 12 percent. The contemporary-day document of atmospheric carbon dioxide degrees commenced with observations recorded at Mauna Loa Observatory in Hawaii.

Thus it is well explained.

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When stomata are closed during hot weather, Oxygen combines with RuBP and a wasteful process occurs, known as:

a. photo phosphorylation
b. photo transpiration
c. photochemical
d. photorespiration

Answers

Answer:

Photorespiration

Explanation:

Sex-Related inheritance: X chromosome; Non Sex-Related inheritance​

Answers

What we already know:

All species under normal circumstances will have two sex chromosomes. X and Y, Y is known to be dominant. All females will have two X chromosomes (XX, one X will always be given by the mother), whereas males will have one Y chromosome and one X chromosome (XY, one X will always be given by the mother. The father, on the other hand, could give either an X or a Y, that all depends on what sex chromosome the father's sperm donated.)

So, how many chromosomes do a typical human have? Correct, a typical human has 32 chromosomes and only 2 of them are sex chromosomes. Now we must understand that the sex chromosome carries more than just the one code for the individual sex. That means that the gene codes for more than just the sex.

Building on that knowledge:

Sex-Related Inheritance that differs from sex, is carried on one or two of an individual's sex chromosome. Whereas Non-Sex-Related Inheritance is carried on the other thirty chromosomes that the individual also carries.

Sex-Related inherited genes that are passed via the father to male offsprings, carried on the Y chromosome, are easiest to spot in a family. All males will have this trait and no females will.

Non-sex-related inheritance can be passed from male to female and from female to male, this is sometimes harder to differentiate from genes carried on the X chromosome because the mother always gives an X chromosome.

Vocabulary:

phenotype: the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

what is an acid? What is a base?

Answers

Answer:

An acid is a substance that donates hydrogen ions. Now there are more hydrogen ions than hydroxide ins in the solution. This kind of solution is acidc. A base is a substance that accepts hydrogen ions. When a base is dissolved in water, the balance between hydrogen ions and hydroxide ions moves the other way.

Explanation:

Answer:

An acid–base reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH.

Explanation:

An acid is a substance that donates protons or accepts a pair of valence electrons to form a bond.

A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.

 which statement is true about cell wall but not a cell membrane?

a. it forms the outer layer of the cell

b. it gives an animal cell shape

c. it is selectively permeable

d. it is mostly of cellulose

Answers

Option a
It forms the outer layer of the cell
Hope it helped if yes then please like it

ASAP Describe the difference between each of these terms and the structure of each kind of fat- Saturated fats, Unsaturated fats, Polyunsaturated fats

Answers

Answer:

In saturated fats, the carbon atoms are totally covered, or "saturated," with hydrogen atoms. This makes them solid at room temperature. In unsaturated fats, fewer hydrogen atoms are bound to carbon atoms. These fats are liquid at room temperature.

Write five general properties of minerals

Answers

Answer:

Color, luster, streak, hardness, and cleavage

Explanation:

How is mRNA or protein synthesis in general related to communication?

Answers

Answer:Three general classes of RNA molecules are involved in expressing the genes encoded within a cell's DNA. Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein synthesis. In eukaryotic cells, each class of RNA has its own polymerase, whereas in prokaryotic cells, a single RNA polymerase synthesizes the different class of RNA. Other types of RNA also exist but are not as well understood, although they appear to play regulatory roles in gene expression and also be involved in protection against invading viruses.

Explanation:

Cell size and shape are important factors in determining the rate of diffusion. Think about cells with specialized functions, such as epithelial cells that line the small intestine or plant root hairs. What is the function of these cells? Sketch the shape of these cells. How does the shape of these cells relate to their function?

Answers

Answer:

Epithelial cells are the protective cells. They form the outer covering of the body surface which protects the body from any external danger.Cuboidal epithelial cells, as their name suggests, are shaped like cubes. These are typically found in tissues that secrete or absorb substances, such as in the kidneys and glands. Columnar epithelial cells are long and thin, like columns. These are usually found in places that secrete mucus such as the stomach.

When the water cools and turns back into a liquid, this is known as ___________________.

Answers

Answer: melting

Explanation: When water goes from its solid form (ice) back to its liquid form, this is known as MELTING. Condensation occurs when gas changes into liquid, not when ice changes into liquid.

Which of the following living things would have the same processes at the cellular level as it would at the organismal level? An amoeba A human A flea An oak tree A mushroom​

Answers

the answer would be an amoeba

Please help. I’m kinda dumb

Answers

Answer:

why do you say that?

Explanation:

I can't see what it says even when i pull the piscture up.

Sorry :|

Have a great day/night and stay safe! :D :)

I'm not quite sure either, but from the instructions it appears that you should have some sort of "subject" and two of the subject's relatives. Then you just have to list if the subject and the two relatives show the traits. I believe that the subject is either you, since the course says "Your Genetic Traits"

I hope this helped a bit.

Why is graphing important to
scientists? (Give at least 2 reasons)

Answers

Answer:

They can help visualize the data.

You can actually see what all of the numbers in a data table mean.

Explanation:

Its hard to look at a set of data and understand what it means without organizing it in a way which is easy to understand and refer back to.

A professor researching sea stars off the coast of France has been offered a position a a Mexican university. Should the researcher assume that his pas!
experiments would produce the same results in the coastal regions of Mexico?
No because the experiments are no longer valid if they are disassembled
Yes because performing experiments under different conditions further validates the results
Yes because the same experiment should yield the same results everywhere in the world
No because the environmental conditions in Mexico will be different producing uncontrol anables

Answers

Answer:

It is the Last one

Explanation:

No because the environmental conditions in Mexico will be different producing uncontrol anables

Answer:

The Answer is D. No, because the environmental conditions in Mexico will be different, producing uncontrolled variables

Explanation:

he is traveling to another part of the earth on a different coast with different conditions. It would be much more different. Perhaps there are other species and everything. Some results could be similar but most of them wont.

Hope This Helps!

PLEASE HELP I HAVE TO FILL IN THE BLANKS!!!!!!
For every volcano, there is a ____________ in the nearby ocean, formed due to subduction.

Answers

There is a Island nearby

Somebody help me plsss

Answers

Answer:

1. give up 1

2. give up 2

3. give up 3

4. gain 3

5. gain 2

6. gain 1

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Which domain includes organisms that are called extremophiles (organisms which live in extreme environments)?

Answers

Answer: archaea

Explanation:

Most extremophiles are microorganisms (and a high proportion of these are archaea), but this group also includes eukaryotes such as protists (e.g., algae, fungi and protozoa) and multicellular organisms. Archaea is the main group to thrive in extreme environments.

Archaea domain includes organisms that are called extremophiles (organisms which live in extreme environments).

What are the characteristics of archaea?

Archaea is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria.

The common characteristics of Archaebacteria known to date are these: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat.

If there is an overgrowth of another organism called Archaea, then the symptom picture can be very different. There can still be bloating, abdominal pain and cramping, but Archaea usually cause constipation, not diarrhea.

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