Stars are powered by nuclear fusion reactions. please select the best answer from the choices provided t f

Answers

Answer 1

Answer:

That statement is true, all stars are powered by a form of fusion.


Related Questions

which part of earth belongs to the geoshpere

Answers

Answer:

In modern texts and in Earth system science, geosphere refers to the solid parts of the Earth; it is used along with atmosphere, hydrosphere, and biosphere to describe the systems of the Earth(the interaction of these systems with the magnetosphere is sometimes listed). i.e the earth's interior ok

Explanation:

what is this frog called

Answers

Answer:

Its called a Morelet's tree frog

I hope this helps! <(^,^)>

Answer: Morelet's tree frog

Explanation:


A mixture is...


A) 2 or more different elements
joined together

B) An atom

C) Made up of one type of atom

D) 2 or more different elements
not chemically bonded together Parkanones SLP Open-minded Enquiring

Answers

Answer:

the answer is B correct me if I'm wrong!

aye yo Bueno
its layhej5 were u at

Answers

No where are you at young man

When one DNA molecule is copied to make two new DNA molecules, the resulting DNA molecules contain A) none of the parent DNA. B) 50% of the parent DNA. C) 75% of the parent DNA. D) 100% of the parent DNA

Answers

Answer:

50% of the parents DNA

Explanation:

This is because the new DNA molecule contains a parent strand and a new daughter strand. The parent strand serves as a template for the synthesis of a new strand reason why DNA replication is said to be a semi-conservative process.

Because they create multiple alleles, mutations can cause

A. cell division.
B. damaged DNA to repair itself.
C. overproduction of offspring.
D. variations in traits.

Answers

Because they create multiple alleles, mutations can cause D. variations in traits.

Gene mutations and evolution

The production of mutations in DNA molecules is known as mutagenesis. Changes in DNA sequence or chromosome rearrangement are just two examples of mutations that can occur in DNA. These mutations can happen on their own, as a result of mistakes made during DNA replication or mitosis. Natural selection requires genetic variety, which is produced by spontaneous mutations.

The process by which populations of organisms change over generations is known as evolution. These modifications are caused by genetic differences. Different features in an organism can be introduced by genetic differences that modify gene activity or protein function. If a characteristic is beneficial and helps an individual survive and reproduce, it is more likely to be handed down to the following generation (a process known as natural selection).

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What is scientific learning?​

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Answer:

Scientific literacy means that a person can ask, find, or determine answers to questions derived from curiosity about everyday experiences. It means that a person has the ability to describe, explain, and predict natural phenomena.

Scientific learning is the ability to ask, find, or determine answers to questions arising from everyday experiences. It denotes the ability to describe, explain, and forecast natural phenomena.

90 POINTS! PLEASE HURRY! Analyze this graph and fill in the blanks with the correct response.

Answers

1. 200
2. 300
3.200
You’re welcome

A sod grower whose client has requested a (blank) nearly 18 months from sowing to harvest.
growth variety of grass must calculate that it will be

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A grass grower whose customer requested a lawn that is nearly 18 months old from sowing to harvesting. Grass growing variety should calculate that it will be 1 year and 6 months.

How is grass growing?

Grass boards should be lined up side by side so that they root and grow evenly.the importance of irrigation. “Right after planting, it is necessary to irrigate the area of ​​grass planted well”, in this way, the grass will settle in the soil and grow beautiful and green.

With this information, we can conclude that a grass grower whose customer requested a lawn that is nearly 18 months old from sowing to harvesting. Grass growing variety should calculate that it will be 1 year and 6 months.

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Although the females glow at night and are easily seen by predators, they have few enemies. state one characteristic that protects them from predators.

Answers

The one characteristic that protects females from their predators during the night is to hide in such a dark place where predators can not be easily identified. It helps in escaping from predators by hiding their glow.

What is Predator?

The predator may be defined as any organism that kills or hunt other organisms (prey) for the fulfillment of their need.

The above-mentioned strategy assists the female to hide their extreme glow during the night and successfully escape from predators.

Therefore, it is well described above.

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What is one reason water can remain in the liquid state on Earth?
A. Earth's atmosphere is deep enough to allow water to cycle through
its solid, gas, and liquid states.
OB. Earth's surface is continually bombarded by comets, which add
liquid water.
OC. Earth's distance from the sun keeps the temperature just right for
liquid water to exist.
OD. Earth's atmosphere is warm enough to prevent water vapor from
condensing.
SUBMIT

Answers

Answer:

c

Explanation:

water boils at 100 degrees Celcius and freezes at zero degrees Celcius. if you want to keep water in a liquid phase, the temperature has to be between 0 and 100 therefore earth is the only planet that is able to keep water in a liquid phase as it is not too hot nor too cold

Cornell University recently conducted a study that estimated that honeybees pollinate more than $14 billion worth of crops each year. The study suggested that nearly seventy-five percent of all global crops that are grown for food, fiber, beverages, condiments, spices, and medicines are pollinated. Produced with the help of pollinators, agricultural products including legumes, vegetables, fruits, berries, nuts, herbs, spices, oils, seeds, grains, clover, and cotton make a significant contribution to the economy. As the human population increases, so does the demand for pollination; sadly, the honeybee population is decreasing. Within the past thirty years, parasites, predators, and disease have weakened both wild and managed populations of honeybees. In fact, around the globe, honeybees are being decimated by an epidemic known as colony collapse disorder (CCD).

According to this article, who collected information to research the honeybees?

Answers

Answer:

Cornell University collected the information used to research the honeybees.

Cornell university obtained the information from the honey bees.

Which statement about DNA replication is true?

Answers

Explanation:

So, the correct answer is 'DNA replication begins at the promoter'.

Nearsightedness is dominant to normal vision and hazel eyes are dominant to blue eyes. A nearsighted woman with hazel eyes who is heterozygous for both traitsmarries a man with normal vision and hazel eyes. His genotype for eye color is the same as his wife's. Their three children all have blue eyes and normal vision. What is the probability that their next child will have blue eyes and be nearsighted

Answers

In this case we will deal with genetics and use the genes to know the probability of the child being born with blue eyes, in this case it will be 1/4.

What is genetic probability?

Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck. It can be defined by the following formula:

P is the probability that an event will occurA is the number of desired eventsS is the total number of possible events.

In this case,

the gemetes from the mother will be NH, Nh, nH and nhthe gametes from the father will be nH and nh

Based on the parent genotypes a child with nearsight and blue eyes will have the genotype Nnhh. This will be:

1/2 x 1/2 = 1/4

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Which female organ sheds its lining through menstruation?.

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Answer:

Menstruation is one part of a person's menstrual cycle which includes the shedding of the endometrium (lining of the uterus) that occurs throughout a person's reproductive life.

nitrogen cycle in steps

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“Nitrogen Cycle is a biogeochemical process which transforms the inert nitrogen present in the atmosphere to a more usable form for living organisms.”

Process of the Nitrogen Cycle consists of the following steps –

Nitrogen fixation, Nitrification, Assimilation, Ammonification and Denitrification.

Nitrogen Fixation Process

It is the initial step of the nitrogen cycle. Here, Atmospheric nitrogen (N2) which is primarily available in an inert form, is converted into the usable form -ammonia (NH3).

Nitrification

In this process, the ammonia is converted into nitrate by the presence of bacteria in the soil. Nitrites are formed by the oxidation of ammonia with the help of Nitrosomonas bacteria species. Later, the produced nitrites are converted into nitrates by Nitrobacter. This conversion is very important as ammonia gas is toxic for plants.

Assimilation

Primary producers – plants take in the nitrogen compounds from the soil with the help of their roots, which are available in the form of ammonia, nitrite ions, nitrate ions or ammonium ions and are used in the formation of the plant and animal proteins. This way, it enters the food web when the primary consumers eat the plants.

Ammonification

When plants or animals die, the nitrogen present in the organic matter is released back into the soil. The decomposers, namely bacteria or fungi present in the soil, convert the organic matter back into ammonium.

Denitrification

Denitrification is the process in which the nitrogen compounds make their way back into the atmosphere by converting nitrate (NO3-) into gaseous nitrogen (N). This process of the nitrogen cycle is the final stage and occurs in the absence of oxygen. Denitrification is carried out by the denitrifying bacterial species- Clostridium and Pseudomonas, which will process nitrate to gain oxygen and gives out free nitrogen gas as a byproduct.

How many hepatitis b vaccinations should you get in order to be fully immunized?.

Answers

Answer:

2 or 3

Explanation:

I believe it's 3, I could be wrong though.

Which of the following likely results from urbanization? (4 points)
Expansion of forests
Decreased farmland
Decreased transportation
Increased electricity use

Answers

The option that is likely to result from urbanization is decreased farmland. Details about urbanization can be found below.

What is urbanization?

Urbanization is the process of the formation and growth of cities and usually involves change in a country or region when its population migrates from rural to urban areas.

Urbanization usually occurs when people of a region move to another region in search of better opportunities.

However, urbanization will likely result to a decrease of farmland and agricultural practices.

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[BWS.02]An idea is considered scientific after it has been
O tested
O published
O proposed
O popularized

Answers

I would say tested anything scientific comes w a hypothesis and gets tested.

Whether the effect of a neurotransmitter is excitatory or inhibitory depends on.

Answers

Whether the effect of a neurotransmitter is excitatory or inhibitory depends on the receptor it binds to.

What is Neurotransmitter?

A neurotransmitter may be defined as the chemical substances present within the synaptic vesicles and transmitting the impulse through synapses.  

Examples of excitatory neurotransmitters are glutamate, norepinephrine, epinephrine, etc. Such neurotransmitters promote the electrical impulse and allow the passage of messages.

Examples of inhibitory neurotransmitters are serotonin, glycine, GABA, etc. Such neurotransmitters inhibit the passage of electrical impulses and block information.

Therefore, it is well described above.

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A cross was performed, and the offspring shown
to the right were produced. What is the most likely
genotype for the parents?
OBbee x bbEE
OBbEEx Bbee
OBbEex BbEe
BBEE x bbee
DONE
10 mice with
black fur, black eyes
3 mice with
white fur, black eyes
2 mice with
black fur, red eyes
1 mouse with
white fur, red eyes

Answers

The most likely genotypes for the parents are BbEe × BbEe. Thus, the correct option is C.

What is Genotype?

A genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific studies.

If a cross between BbEe × BbEe is made, the resulted offsprings are described in the Punnett square given below:

Therefore, the most likely genotypes for the parents are BbEe × BbEe. Thus, the correct option is C.

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Royale has been undeclared as a national park and has been purchased by a large resort. Describe one positive and one negative impact on the Isle Royale ecosystem

Answers

The adverse impact of this approach to the national park is that biodiversity cease to exist there. Its possible positive impact is the fact that we could have some organisms moving to new areas.

What is an ecosystem?

An ecosystem is a functional unit that is composed of living and non living parts.

The positive impact of this fact that the Royale is no longer a national park is that species can migrate to new areas while the negative impact of this action is that there may be loss of biodiversity.

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Which of the following is NOT true concerning warm-up exercises? A. They should be low-intensity. B They should get progressively more intense. C. They should last 20 to 30 minutes. D. They should increase heart rate, breathing, and temperature. Please select the best answer from the choices provided. OA OB ○C OD​

Answers

The Answer is C 90% sure

(50 points) And Brainliest! Over many years of separation, imagine how the population could have changed.
Start by defining evolution and natural selection. Then include a description of a variation, its heritability, and the reproductive advantage it may provide.
WRITE AT LEAST 5 SENTENCES.

Answers

Evolution is a change in physical or psychological characteristics of a species over several generations. This change of characteristics is often brought upon by environmental distortion through the process of natural selection. A variation could include having different colors or for a bird wider Beak. In a dark environment those with darker colors would have an easier time surviving than those with lighter colors. In a forest where there are only hard seeds, a bird with a wider beak will have an easier time breaking those seeds than those who don’t. Those more advantageous traits will help those creatures survive better in their environment and pass on their genes unlike those don’t have useful or straight up disadvantageous traits will struggle to survive or just go extinct. Over a couple of generation only the with those useful traits will be left.

Here is an example let’s say that there were large amount of bears with black fur living in a deciduous forest environment. There are also a very small number of bears with white fur also living there. The black bears would have a clear advantage over the white bear when it comes to catching prey as they can camouflage and since they are bears if winter hits they go into hibernation so having white fur wouldn’t help as the whole point is to grow fat and go to sleep. Now let’s say an ice age happens, those bears who are out of hibernation have to deal with a cold environment all year long. Now that black fur that help those black bears thrive by Camouflage are now a clear give away but white bear can blend in perfectly with their environment allowing them to hunt. Over a few generations the majority of the bear population wouldn’t be black but white.

Question 4 of 10
Which of the following is an example of imperialism?
A. A country begins trading with other countries.
B. A country conquers its neighboring countries.
C. A country adopts the cultural practices of other countries.
O
D. A country refuses to have diplomatic relations with other
countries.
SUBMITsumbit

Answers

Imperialism is basically just giving a country more power and building a stronger military.

I would connect this with B, i’m pretty sure.

what type of feedback is the previous question?

Answers

Negative feedback – corrective comments about past behaviour. Positive feedback – affirming comments about past behaviour. Negative feed-forward – corrective comments about future performance. Positive feed-forward – affirming comments about future behaviour

Communities within ecosystems are established through the process of ____.

a. commensalism

b. parasitism

c. succession

d. symbiosis

Answers

Answer:

D

Explanation:

Answer is D 100% good luck

Fill in the blanks below with the correct word to complete the sentence.

Water is warmed by the sun and
evaporated
.
It is then cooled and
.
Finally, it is brought back to Earth in the form of

Answers

Answer:

# changes into water vapour

#condenses

#rain

Explanation:

As water vapor rises higher in the atmosphere, it begins to cool back down. When it is cool enough, the water vapor condenses and returns to liquid water. These water droplets eventually gather to form clouds and precipitation.

One species of pufferfish puts on a
display for a mate and another species
doesn't like it. this is an example of
what?

Answers

The display of one species that causes the dislike for another species is an example of competition. Details about competition can be found below.

What is competition?

Competition in biology is a negative relationship between two or more organisms that leads to the death or injury of involved parties.

Living organisms compete for the following reasons:

FoodMateSpace

According to this question, one species of pufferfish puts on a display for a mate and another species doesn't like it. This indicates that the species of putterfish are involved in a competition.

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Answer:

Explanation: behavioral barrier

describe how carbohydrates are transported from the leaves to the roots?

Answers


Carbohydrates are mainly transported in the phloem in the form of sucrose. The cell membrane of the sieve cells contains pump proteins that actively convey sucrose into the vascular pathways.
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