meaning of corona in science

Answers

Answer 1

Answer:

a virus

Explanation:


Related Questions

1 point
Read the question and select the correct answer.
1
The diagram shows some cells.
cilia
LUNACO
cytoplasm
nucleus
Where are these cells found?
A alimentary canal
B blood
C bronchus
D plant roots
Ο Α
OB
Ос
OD
Moy
Page 3 of 8

Answers

Explanation:

A= alimentary canal have all of this cells

Which of the following can result in the denaturing of an enzyme? (Choose the BEST answer choice)
Change in pH only
b. Change in temperature only
Change in both pH and temperature
d. none of the above will denature an enzyme
ASAP!!!

Answers

Answer:

change in temperature

Explanation:

The anwser is change in the tempature

Does cellular respiration happen in the chloroplast?

Answers

Yes photosynthesis happens in the chloroplast. Photosynthesis occurs in the chloroplasts, whereas cellular respiration occurs in the mitochondria. Photosynthesis makes glucose and oxygen, which are then used as the starting products for cellular respiration.
Please give brainliest

Which factors affect natural selection?
inheritance, isolation, adaptation
variation, overpopulation, adaptation
isolation, overpopulation, speciation
variation, inheritance, speciation

Answers

The answer is the second choice: variation, overpopulation, adaptation

Natural selection is an evolutive force that favor beneficial alleles increasing their frequency. The correct option is C). variation, inheritance, speciation.

What is Natural Selection?

Natural selection is an evolutive force that selects beneficial alleles and increases their frequency in the population. It results from the interaction between the individuals' phenotype and the environment, which determines gene destiny in space and time.

Natural selection results in adaptation, meaning that it causes an increase in the aptitude phenotype.      

Aptitude (or fitness)  is the contribution of each genotype to the next generation. It is reflected by the phenotype that results in the survival, fertility, and capability of having a mate. It is a way of measuring the individual ability to leave fertile offspring. Aptitude must be significant to the natural selection act in its favor.

Natural selection can act favoring an allele or against it, according to how it affects the fitness of individuals.      

In many cases adaptations, resulting from natural selection can be correlated to environmental factors or selective pressures applied by other organisms or habitats.

The selective agent is the environmental trait that determines the differential survival of the phenotypic classes. The environment influences the probability that each genotype passes its gametes to the next generation.

Natural selection also acts on variation caused by mutations. Let us remember that a mutation is a change or alteration in DNI sequences that introduce new variants.

Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.

Hence, a mutation can cause variation. If this variation turns to be beneficial to the population and increases individuals' fitness, it is favored by natural selection.

New generations inherit these new variants increasing their frequency in the population.

According to the environment and the species distribution, these changes might lead to speciation.

The correct option is C) variation, inheritance, speciation

You will learn more about natural selection at

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T (tall) is dominant over t (short)
G (green) is dominant over g (yellow)

Cross a short yellow, plant with a plant that is heterozygous for both traits

Answers

Answer:

The crossing plant with short yellow should be tall green

Explanation:

short yellow = tg

tall green = TG

their kids' traits = Tt, Tg, tG, gG (all heterozygous)

Answer:

sorry its kinda messy i added a picture

PLZ HELP!!! PLEASEEEE ITS DUE

Answers

Answer: a wet climate in which temperatures alternate from above freezing to below freezing

Explanation:u need a wet climate because there needs to be available water that can wedge itself into cracks. And the climate needs to fluctuate from below freezing to above freezing so the water can continue to maneuver itself into the cracks, and then continue to freeze.

Scenario 1: A river in North Carolina has been tested and the following data is obtained:
pH = 7.1
Dissolved Oxygen = 7 mg/L
Nitrates = 8 mg/L
Phosphates = 0.03 mg/L
Biotic Index = 3.5
What is the overall quality of this river? How do you know? If the quality is low, what do you think could be happening in the environment to cause these readings?

Answers

Answer:

Good.

Explanation:

The overall quality of this river is good because all the levels is in normal range. Healthy water should have 6.5 to 8 mg/L of dissolved oxygen concentrations, normal range of phosphorus is 0.005 to 0.05 mg/L, levels of nitrate at or below 10 mg/L and the biotic index less than 3.75 is considered normal and the data shows all value of substances comes in normal range so we can say that the quality of water is good.

A part of the crust that is broken and moves

Answers

Answer:

The Earth's crust and upper part of the mantle are broken into large pieces called tectonic plates. These are constantly moving at a few centimetres each year.

Explanation:

Can someone help, u have to match defintions with pictures

Answers

Answer: The picture at row 1, column 1 goes with the definition in row 2 column 4.

The definition in row 1 column 2 goes with the picture in row 4 column 2

the definition in row 2 column 1 goes with the picture in row 2 column 2

Explanation: Thats the best I could do with the image

I hope this works for you

I'm so confused anybody can help?​

Answers

Answer:

Photosynthesis vs Cellular Respiration

Uses water <=> Gives off water

Uses carbon dioxide <=> Gives off carbon dioxide

Makes Glucose <=> Breaks down glucose

Gives off oxygen <=> Uses oxygen

Occurs only in light <=> Occurs all the time; does not need light

Takes in light energy <=> Releases light energy stored in glucose

Explanation:

Photosynthesis and Cellular Respiration are both biological processes. One is the reverse of the other.

Photosynthesis is an anabolic process while cellular respiration is a catabolic process. It implies that photosynthesis synthesis food by capturing energy while cellular respiration breaks down food and releases energy for cellular activities.

The two processes are important to keep each other going.

Plants release oxygen which is a by-product of photosynthesis, and we breathe in oxygen so that our cells can carry out cellular respiration and generate ATP.

Photosynthesis uses light energy, carbon dioxide and gives off glucose, water, and oxygen as by-product while cellular respiration uses water and glucose, and gives off carbon dioxide, water and energy as by-products.

While photosynthesis occur in green plants in the presence of light, cellular respiration occurs at all times.

Which activity is NOT part of the hydrosphere?
A. rain falling from clouds
B. fish swimming in a pond
C. waves pounding a sandy shore
D. a stream tumbling over large rocks

Answers

Explanation:

rain fallung from clouds

D because most of the hydrosphere activities in include water

20 points!!! + brainly!!! real answers only!!!

What are three ways that veterinary medicine can improve/impact human health and medicine? What is one way that veterinary medicine has impacted you/your family?

Answers

Answer:

- Compassion. Veterinarians must be compassionate when working with animals and their owners.

- Decision-making skills

- Interpersonal skills

- Management skills

- Manual dexterity

- Problem-solving skill.

Explanation:

Veterinarians treat the injuries and illnesses of pets and other animals with a variety of medical equipment, including surgical tools and x-ray and ultrasound machines. They provide treatment for animals that is similar to the services a physician provides to humans.

A virus causes the common cold.
O True
O False

Answers

Answer:

false

Explanation:

It can cause many more things and it depense on the type of virus!

The answer is false can cause many other things.

Your welcome

Mangrove swamps are coastal wetlands found only in tropical zones true or false

Answers

Answer:

According to www.epa.gov, Mangrove swamps are coastal wetlands found in tropical and subtropical regions. Therefore, I would say false bc it doesn't include subtropical

Explanation:

Purple flowers are dominant, white flowers are recessive. We are using the letter 'Na' for the flower color gene. What are all the possible allele
combinations for a purple flower?
-АА
-Аа
-аа

Answers

Answer:

.....46e72fhjw8wfjj29ajfj29zjfjqs jw9cjhq

Which of the following data could best support the claim that species B arose from a speciation event in Lake I?

Answers

Answer: B

Explanation:

DNA analysis shows fewer differences between species A and species B in Lake 1 than species B and the populations in Lake 2

Speciation is defined as the mechanism through which new species or organisms are created.

What is Speciation?

Speciation is an evolutionary mechanism in which the population of certain organisms evolves and becomes distinct species. It is the phyletic evolution within a lineage or lineage.

In the given image, the speciation of organisms A and B shows that the difference in the genetic sequence of species and Species B in Lake I were somewhat related. Species B showed many differences to the organisms of Lake II.

Thus, species A and species B in Lake I may have arisen due to speciation.

Learn more about speciation here:

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When 72.9g of magnesium is reacted with 28.0 of nitrogen gas, no magnesium or nitrogen is left over. How much magnesium nitride is produced?

Answers

100.9 g of magnesium nitride.

Humans can see colors because of these photo receptor cells in the Retina called

Answers

Answer:

It's called rods and cones

Explanation:

The cone receptor is more sensitive out of the 3 different colors (green, red or blue). Signals from the cones are sent to your brain which then it  translates these messages into the perception of color(s).

Please help it’s due soon...

Answers

Answer:

75%

Explanation:

Polydactyly is a trait found in cats and humans in which a person (or cat) has 6 digits per
hand or paw. The allele for polydactyly is rare but dominant. If a man who is heterozygous
for this trait marries a woman with 5 fingers, what are the chances that they will have a child
with polydactyly?

Answers

Answer:

1/2 or 50%

Explanation:

This question involves a single gene coding for the number of digits per paw in cats or humans. The allele for polydactyly i.e six digits (P) is dominant over the allele for normal number of digits i.e 5 (p).

According to this question, If a man who is heterozygous (Pp) for this trait marries a woman with 5 fingers (pp), the following gametes will be produced by each parent:

Pp : P and p

pp : p and p

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

Pp, Pp, pp and pp

The offsprings with genotype Pp will have polydactyl, hence, the chances that they will have a child with polydactyly is 1/2 or 50%.

Which of the following are the most common prokaryotic cell shapes? (Choose all that
apply)
bacilli
cocci
ooo
arcula
spirilla

Answers

Answer:

cocci

bacilli

spirilla

A general (non specific) way to describe something such as color, shape, and hight

Answers

Answer:

An unconformity happens when rocks do not follow normal geologic rules.

A geologic gap happens when rock is eroded before the sediment is deposited.

Explanation:

Given is a strand of DNA, fill in the corresponding RNA strand and find which amino acids that strand codes for.

Answers

Answer:

The correct answer would be -

RNA - AUG GGG CCU UAC UAA

Amino acid -methionine-glycine-proline-tyrosine -stop codon

Explanation:

In the process of protein synthesis, the first process is known as transcription which involves the transcribing the mRNA strand from the DNA strand in a complementary manner. In this manner, Adenine transcribes into uracil and cytosine transcribe into guanine similarly thymine into adenine and guanine into cytosine.

Then, DNA strand - T-A-C-C-C-C-G-G-A-A-T-G-A-T-T will change into AUG GGG CCU UAC UAA and every three codes represent a triplet codon that translates into an amino acid first code called start codon and normally code for methionine (AUG) and last code for stop and does not code any amino acid.

Then, the amino acid will be - methionine-glycine-proline-tyrosine -stop codon

What do you think would happen to the
numbers of white, gray, and black mice in generation 3?

Answers

Answer:

They camouflaged with their background. Generation 3 would have more kids, resulting in less food.

Explanation:

a genus family can be divided into____

a. families
b. orders
c. phyla
d. species

Answers

Answer: d. Species

Explanation:

Answer is D. species

The positive subatomic particle is the
O a neutron
ob electron
OC. quark
Od proton
O e positron

Answers

Answer:

the answer is proton

hope this helps:)

Proton should be correct
Credits to the person above

Please answer these questions as soon as possible.


5. What is an element?


6. What happens when neutral objects interact with charged objects?


7. Do positive and negative objects always move toward each other?


8. Will positive and negative objects repel each other?


9. Will there be an interation between the two?


10. Do light weight objects seem to be attracted to charged objects?


11. How does an objects charge affect it's interactions with neutral objects?

Answers

I know an element, an element is a part or aspect of something abstract

What tool is used in analyzing bullets?
Lighted microscope
O Comparison microscope
O Bullet microscope
O Laser microscope

Answers

Answer:

laser microscope

Explanation:

because you want to show the finger print

Answer:

Comparison microscope

Explanation:

i just took the test

the average hair skin and nails have a pH level of five generally falling between 4.5 and 6 true or false

Answers

The answer is true I’m pretty sure

Hair and nails are made up of a tough protein known as keratin.

The pH of hair and nails is slightly acidic.Hair, skin, and nails have a pH of approximately 5.5.Hair functions to keep the body warm while the nails act as protective plates for the fingertips.

Hence, it can be said that the average pH of the hair and skin lies between 4.5 and 6. Hence, the given statement is true.

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What is a potential risk of a long-term stationary front?

A. tornadoes

B. flooding

C. hurricanes

D. drought

Answers

the answer is B. flooding

Answer:

B

Explanation:

Other Questions
Use the space below to calculate the average monthly temperature in the Canadian tundra during the coldest months (October through May) and during the warmest months (June through September). Which is true if a population is in genetic equilibriuma) Evolution is occurringb) new species are evolvingc) allele frequency is changing from one generation to the nextd) allele frequency is remaining the same from one generation to the next Parasitism benefits _____One species and the other is unaffectedOne species and the other is harmedBoth species absolute and total freedom is NOT guaranteed in the constitution? true or false What is the first step?4x+y=9x+y=7 Help Me Out Please! which is the better buy 5 erasers for $3.00 or 7 erasers for $3.50 Brenda creates an animation that tells the story of a metal from when it is mined as an ore to when it is used as a shiny, protective coating on a cars iron bumper.Which two terms will Brenda most likely use in her animation, and in what order?electrometallurgy followed by electroplatingelectrometallurgy followed by anodizationanodization followed by electroplatingelectroplating followed by electrometallurgy How is conservation of mass illustrated in this simulation? Explain your answer. Read the passage.A Flag with 50 StarsThe first American flag to have red and white stripes and white stars on a blue field was flown in 1776, shortly after the United States declared its independence from Great Britain. Legend has it that a Philadelphia seamstress named Betsy Ross was hired by George Washington himself to create this flag. There is no evidence that this legend is true, and no one knows for certain who made the first flag, which had 13 stars and 13 stripes. However, we know for a fact that the first flag to have 50 starsthe one we have todaywas designed by a high school student.In 1958, Bob Heft was a 17-year-old student at Lancaster High School in Ohio. At that time, the United States had only 48 states but was on the verge of accepting two more: Alaska and Hawaii. The U.S. flag at the time had six neat rows of eight stars each. What would be the best way to add two more stars while keeping the arrangement neat and orderly? This was the question that Bobs history teacher posed to the class. The teacher gave the students an assignment: design a flag with 50 stars. Bob spent hours in the attic of his house, cutting up a 48-star flag and rearranging the stars until they fit just right. He was pleased with his solution to the problem, but his teacher found it less than perfect and gave him a B minus. Outraged, Bob told his teacher that he was going to send his design to his member of Congress, Walter Moeller. His teacher replied that if Bobs design was accepted as the new flag, he would be more than happy to change his grade to an A.A year later, Bob had graduated and was working as a draftsman when he received a call at work. He never would have imagined a call from President Eisenhowerbut that's who it was! Now that Alaska and Hawaii had been admitted as states, Congressman Moeller had succeeded in having Bob's design chosen as the new U.S. flag. Bob Heft was invited to Washington, D.C., for a ceremony during which his design was officially adopted as the new flag of the United States.Question 1Part AWhat inference can be made about Bob Heft in A Flag with 50 Stars?He is accustomed to success and does not take criticism well.He is more knowledgeable about American history than most students.He has important connections to government officials. He works hard and does not give up easily.Question 2Part BWhich evidence from the text best supports the answer in Part A?He was pleased with his solution to the problem, but his teacher found it less than perfect and gave him a B minus.Bob spent hours in the attic of his house, cutting up a 48-star flag and rearranging the stars until they fit just right.His teacher replied that if his design was accepted as the new flag, he would be more than happy to change the grade to an A.Now that Alaska and Hawaii had been admitted as states, Congressman Moeller had succeeded in having Bob's design chosen as the new U.S. flag. What is the role of internal auditors the length of a rectangular room is 4 yards and the width is 6 yards of carpet cost $18 per yard how much will the carpet cost for the room lin run 5 laps around a track in 10 minutes. How many minutes per lap is that What is the correct name for a 9-sided polygon?decagonoctagonnonagonninagon Help please help help 2. Write the coefficient of 'a' in each of the following termi) '5ax' (ii) '-4ab' (iii) '38abc' iv) '-24 ab^(2)c' Richard's doctor says that he has become obese. What health risks is Richard now facing? Early signs of cardiovascular disease and sleep apnea Unease getting around and breathing difficulties Insulin resistance and low blood pressure Bone thickening and respiratory problemsQuestion 4(Multiple Choice Worth 3 points) Briooooo wat is dis answer I need HELP One of the required steps for amending the constitution is (a) the House of Representatives and the Senate must pass the proposed amendment by a simple majority vote (b) all of the states must ratify the proposed amendment by a simple majority vote (c) the Supreme Court must rule the proposed amendment to be constitutional (d) none of the above. I have a math problem can uou solve it? Which expression is equivalent toXy2/9