Why are viroids not considered to be a type of virus?

A. They use RNA as genetic material.
B. They only infect plants.
C. They do not cause disease.
D. They do not have a protein coat.

"Gamete Types. Some male and female gametes are of similar size and shape, while others are different in size and shape. In some species of algae and fungi, male and female sex cells are almost identical and both are usually motile. The union of these types of gametes is known as isogamy."

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Answer:

Bacteriophages are composed of proteins that encapsulate a DNA or RNA genome, and may have relatively simple or elaborate structures. Their genomes may encode as few as four genes and as many as hundreds of genes. Phages replicate within the bacterium following the injection of their genome into its cytoplasm.

Explanation:

A) a protein coat and a nucleic acid core

Answer:

its D

Explanation:

Answer:

Yeah its D

Explanation:

I did the assignment :)

Answer:

- To costly

-There is another plant that has the same resource to cure cancer and adapts easily to different environments so you don't have to preserve Botana curus

In order to preserve Botana curus a large quantity of money must be used to do so therefore it is not economically reasonable, also if another plant has the same thing to cure cancer use that plant instead .

Answer:

The correct answer is option C-Temporal lobe.

Explanation:

The fissures in the cerebral hemispheres of the brain divides it into lobes or areas. Each hemisphere of brain is divided into 4 lobes: frontal, parietal, temporal and occipital lobes. These lobes works in complex coordination with each other .

In the figure since the shaded portion is present below frontal lobes and parietal lobes and anterior to occipital lobes therefore it is temporal lobe which controls many functions like memory, hearing, sequencing, organization and understanding language.

Thus, option C-Temporal lobe is the correct answer.

Use natural light and grow your own vegetables

Answer: Use natural light instead of electric lights during the day.

Grow your own vegetables in a garden instead of shopping for them.

Explanation:

Green house gases are the gases which trap the heat from sunlight causing the retention of heat in the atmosphere. This causes global heat.

The use of natural light will reduce the dependency of fossil fuel for the generation of electricity. Hence, the burning of fossil fuel and generation of greenhouse gases such as carbon dioxide, carbon monoxide and others will not release.

Growing own vegetables will reduce the carbon dioxide levels in the atmosphere. Hence, will reduce the green house gas abundance in the atmosphere.

Carbon is taken from the atmosphere, as carbon dioxide, by plants through photosynthesis and incorporated into the biosphere as carbohydrates. Carbon dioxide from the atmosphere also gets dissolved in the water of the hydrosphere and utilized by photoautotrophs. This carbon held up in biosphere can be released by the atmosphere through processes such as combustion and decomposition.

Answer:

an increase in skin cancer can be traced to a decrease in atmospheric ozone.

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An increase in skin cancer can be traced to a decrease in atmospheric Ozone.

Explanation:

Exposure of the skin to ultraviolet rays is a major risk factor that triggers skin cancer and is one of the growing concerns in recent times. BCCs or basal cell carcinoma is also known as rodent ulcers and occur generally in the areas exposed in the sun which damages the local tissue in human beings. Patients with this disease are usually fair skinned and burn more than dark skinned people in sunlight.

It may also develop during childhood, when a child is exposed in the sun for long periods. One of the most serious forms of skin cancer is Malignant melanoma which happens due to exposure of the body to the harmful UV radiations which in turn happens due to the ozone layer depletion, which stops the harmful rays of the sun from coming to the earth.

Two molecules are formed each with one original side.

aka semi-conservative replication(the resulting double helix is composed of both an old strand and a new strand)

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Answer:

Two molecules are formed, each with one original side.

Answer: cytokinesis-mitosis-new nucleus formed.

In mitosis order of events are.

Prophase - Metaphase - Anaphase- Telophase.

I remembered it like this "PMAT".

HOPE THIS HELPS YOU FRND

The correct order of stages in mitosis is:

Prophase

Metaphase

Anaphase

Telophase

Cytokinesis.

Mitosis is a fundamental process in eukaryotic cell division, ensuring the accurate distribution of genetic material to daughter cells.

The sequence of stages in mitosis is intricately orchestrated, each phase serving a specific purpose in the division process.

Prophase: Chromosomes condense and become visible.

The nuclear envelope disintegrates .Mitotic spindle fibers begin to form.

Metaphase: Chromosomes align along the cell's equator, known as the metaphase plate. Spindle fibers attach to the centromeres of each chromosome.

Anaphase: Sister chromatids are pulled apart by spindle fibers toward opposite poles of the cell.

Each chromatid is now considered an independent chromosome.

Telophase:

Chromosomes reach the opposite poles and de-condense. A new nuclear envelope forms around each set of chromosomes.

Mitotic spindle fibers disassemble.

Cytokinesis:

The physical division of the cell into two daughter cells.

In animal cells, a cleavage furrow forms, pinching the cell membrane.

In plant cells, a new cell wall, known as the cell plate, develops to separate the cells.

During telophase, the formation of a new nucleus marks the final stages of mitosis.

This meticulous sequence of events ensures that each daughter cell receives an accurate and complete set of genetic material.

Mitosis is essential for growth, development, and tissue repair in multicellular organisms.

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the answer is B. Enzymes :)

Answer:

it is enzymes

Explanation: i just answered it

Answer:

Some viruses, such as Influenza virus and HIV virus, also have an envelope which covers capsid. The envelope is an outer lipid bilayer that is studded with proteins.

Answer:

influenza virus

Explanation:

I am the answer giver and this is your answer.

Answer:

Option "A" might be the correct answer

Explanation:

there are some of those viruses where it can be quite potent. Some viruses, such as the rhinoviruses, seldom cause serious illness. But others, such as parainfluenza and respiratory syncytial virus, can lead to severe lung infections in young children.

Answer:

B. Colds can be caused by hundreds of different viruses.

Explanation:

The common cold is a benign viral infection of the upper respiratory tract, which mainly affects the nose and throat. The most common symptoms are: nasal congestion, runny nose, sneezing and sore throat. This is one of the most common diseases that exist. Eventually, everyone will get a cold more than once in their life.

More than 200 viruses can cause colds, all of which are respiratory transmission, which makes contagion extremely effective. Cold viruses enter the body through the lining of the mouth, eyes or nose. The most common is to bring the contaminated hand to the face. This port carries viruses acquired by manual contact with colds or contaminated objects.

There is also the possibility that viruses reach these mucous membranes, through invisible droplets, suspended in the air, after a person with a cold sneezes, coughs or talks. It is estimated that for this form of contagion, there is a need to be less than one meter from the infected person.

The greenhouse effect describes how light from the sun is absorbed by the Earth's surface, then reradiated back into the atmosphere as infrared radiation. This radiation is trapped by greenhouse gases, warming the planet. Human activities are increasing greenhouse gas concentrations, intensifying this effect.

In the model of the greenhouse effect, light from the sun enters the Earth's atmosphere and is absorbed by the surface of the planet. This energy is then reradiated back into the atmosphere, in the form of longer-wavelength infrared radiation. Much of this infrared radiation is then trapped by greenhouse gases in the atmosphere, including water vapor, methane, and CO₂. This trapped heat energy warms the planet, a process which is similar to how a greenhouse works, hence the term 'greenhouse effect'.

An aspect important to note is that the greenhouse effect is essential for life on Earth, as without it, the planet would be too cold. However, human activities that increase the concentrations of greenhouse gases are intensifying this effect, leading to global warming and subsequent climate change consequences.

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Ca(OH)2

HOPE IT HELPS U

Answer:

Ca(OH)2

Explanation:

The illustration that is shown in the diagram is a kind of animal that is a free-living organism and is called a planarian. It is present in the first option. The planaria belong to the phylum Platyhelminthes.

The nonchordates have no notochord, and there are different phyla, such as Porifera, Coelenterata, and Platyhelminthes, etc., and different types of body organizations are found in the different phyla. The Porifera phylum includes sponges, which have a cellular level of organization; the Coelenterata phylum includes hydra and corals, etc., and tissue-level organization is seen in this phylum. The platyhelminthes phylum includes the planaria, teania, etc., and they have organs such as the excretory system, etc., and the planaria is a free-living organism.

Hence, the illustration that is shown in the diagram is a kind of animal that is a free-living organism and is called a planarian. It is present in the first option.

Learn more about the non chordates here.

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Answer:B) UCGAAU

Explanation: Molecule 1 is a DNA molecule while molecule 2 is an RNA. In DNA bases present are Cytosine, Guanine, Adenine and Thymine. During pairing, Guanine pairs with Cytosine while Adenine pairs with Thymine. Bases present in an RNA molecule are Adenine, Uracil, Guanine and Cytosine. During pairing, Adenine pairs with Uracil which Guanine pairs with Cytosine.

Answer:

the ANSWER is B. UCGAAU

Explanation:

i got the answer on the test assement

Answer: multicellular

The term "multicellular" means having many cells. A butterfly and dolphin are both classified as multicellular organisms because they consist of millions of cells.

One thing that a butterfly and a dolphin have in common is that they consist of million of cells. This means they are both classified as Multicellular which is in option D as both butterflies and dolphins are multicellular organisms.

The cells in multicellular organisms are organized into tissues, which are groups of cells that work together to perform a specific function. Different types of tissues can be found in multicellular organisms, such as muscle tissue for movement, nervous tissue for communication and coordination, epithelial tissue for lining and protecting body surfaces, and connective tissue for support and structure. Tissues can further organize into organs, which are structures composed of multiple tissues working together to carry out specific functions.

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B. It insulates the fish from the cold air above

Just like an igloo

Answer:

Option B, It insulates the fish from the cold air above

Explanation:

Water bodies in cold climatic regions have frozen ice at their top. Basically,  this ice (frozen water) entraps air pockets inside it which acts like an insulator and prevent the aquatic plants and animals from the extreme cold climate. Thus, ice on the surface of any water body protects the species beneath the ice layer from extreme cold climatic conditions. For example Michigan lakes and ponds  get freeze during cold climatic condition.

Option B is correct

Sorry, but there are no any options.

Hello. This question is incomplete. The full question is:

"Which of the following is true about the flow of energy within ecosystems? A. Energy flows from living systems into the physical environment only. B. Energy flows both ways between living systems and the physical environment. C. Energy flows from the physical environment into living systems only. D. Energy does not flow between living systems and the physical environment."

Answer:

B. Energy flows both ways between living systems and the physical environment.

Explanation:

Energy lives in a constant flow within ecosystems. This energy flows in both directions between living systems and the physical environment.

An important aspect to understand the transfer of energy within an ecosystem is the understanding of the first fundamental law of thermodynamics that says: "Energy cannot be created or destroyed, but transformed". As an illustrative example of this condition, we can mention sunlight, which as a source of energy, can be transformed into work, heat or food depending on photosynthetic activity; but in no way can it be destroyed or created.

Another important aspect is the fact that the amount of energy available decreases as it is transferred from one trophic level to another. Thus, in the examples given above of food chains, the grasshopper obtains, by eating the leaves of the tree, chemical energy; however, this energy is much less than the solar energy received by the plant. This loss in transfers occurs successively until the decomposers are reached.

Answer:

Water

Explanation: Soil contains various types of the components in it. The organic matter present in the soil provides fertility to the soil.

The minerals and various types of the salts is also present in soil that helps in the growth of the plants. The dead and decaying organic matter, fungi and decaying plants adds fertility to soil being organic material.

So, Water is not an organic matter.

Answer:

D. Water

Hope this Helps!! :))

The significant characteristic shared by both plants cells and photosynthetic bacteria is the ability to perform photosynthesis within specific structures; namely, chloroplasts in plants and thylakoids in bacteria.

The main characteristic shared by both plant cells and photosynthetic bacteria is the ability to carry out photosynthesis. Photosynthesis is a process used by these organisms to convert light energy, most commonly from the sun, into chemical energy that can be later released to fuel the organisms' activities. Plants do this within an organelle called chloroplasts, which contains chlorophyll, the pigment that captures the light energy. Similarly, photosynthetic bacteria, such as cyanobacteria, have special membrane structures known as thylakoids where photosynthesis occurs. Therefore, the possession of structures for conducting photosynthesis, i.e., chloroplasts in plant cells and thylakoids in photosynthetic bacteria, is the characteristic that is shared between plant cells and photosynthetic bacteria.

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The Both plant cells and photosynthetic bacteria share the characteristic of conducting photosynthesis to generate energy from sunlight.

Photosynthesis is a crucial process that converts light energy into chemical energy, primarily facilitated by the pigment chlorophyll.

In plant cells, chlorophyll is found within chloroplasts, specialized organelles responsible for photosynthesis.

During photosynthesis, light energy is absorbed by chlorophyll, initiating a series of chemical reactions that result in the synthesis of glucose and other organic compounds.

This process is fundamental for the production of energy-rich molecules that support the growth and development of both plants and photosynthetic bacteria.

The shared ability to carry out photosynthesis highlights a common evolutionary adaptation among these organisms, allowing them to harness solar energy for their metabolic needs.

While plant cells and photosynthetic bacteria differ in their cellular structures and evolutionary history, the convergence in utilizing photosynthesis underscores the importance of this process in sustaining life on Earth.

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Question

Which of the following characteristics is shared by both plant cells and photosynthetic bacteria?

Answer:

It is made up of living things.

It is mostly solid.

It includes liquid water.

It includes Earth's surface.

It includes Earth's interior.

It is made up of gases and airborne particles.

Explanation:

I didn’t learn this yet but I think it’s testosterone.

Semen is the right answer to your question, you’re welcome and I’m trying to get this 20 word limit over with

Answer: Female gametes (megaspores) are produced in gametophyte structures called archegonia located in ovulate cones. ... Fertilization in gymnosperms occurs when pollen grains contact the female ovule and germinate. Sperm cells make their way to the egg inside the ovule and fertilize the egg.

Explanation: lol

With increasing distance from the earthquake, the time difference between the arrival of the P waves and the arrival of the S waves increases. Put more simply, the higher the time between the S and P waves (the S-P interval), the farther the distance. Describe the process of triangulation to locate an epicenter.

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The time interval between the arrival of the P waves and the arrival of the S waves is longer the more away you are from the earthquake. Simply said, the distance increases as the S-P interval (the amount of time between the S and P waves) increases.

The epicentre is the location on Earth's surface that is immediately above the location underneath (also known as the focus) where the earthquake's fault rupture starts. The area immediately surrounding the epicentre may not experience the worst impacts of the earthquake.

By calculating arcs from three or more seismic observatories, the epicentre may be found. The arcs' radii are proportional to how long it takes seismic waves to travel from the focus to each station. The epicentre is where the arcs' junction occurs. In computer programmes, the analogous algebraic analysis is carried out.

Therefore, the time interval between the arrival of the P waves and the arrival of the S waves lengthens as the distance from the earthquake rises. Simply put, the distance increases as the duration between the S and P waves (the S-P gap) increases.

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Answer:

408 grams therefore has a volume of (408/11.35) = 35.947cc. It displaces 35.947cc of water, = 35.947 millilitres. When lead is put in water, it will displace same volume of water. Therefore, 408 g of lead will displace 36 ml of water.

The volume of 408g of lead is approximately 36 ml. This means that when this quantity of lead is dropped into water, it will displace approximately 36 ml of water.

To answer this question, we need to use the concept of density. The density of lead is approximately 11.34 grams per cubic centimeter (g/cm³). The volume of an object can be determined by its mass divided by its density. So, the volume of 408g of lead would be: 408g / 11.34 g/cm³ = 35.97 cm³.

Since 1 cubic centimeter is equivalent to 1 milliliter, you would displace approximately 36 milliliters of water (rounded to the nearest whole number) when you drop the 408g of lead into it. Keep in mind this calculation assumes that the lead is solid and has no hollow spaces within it.

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When an atom transfers/ gains a valence electron, it gains either a positive or negative charge. in the Proces, becoming an ion. because of the negative/positive charge the two ions are now attracted to each other.

Answer:

Explanation:

It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

Herbivore, they both eat animals and plants