Why are sunspots dark?
A) They are cooler than the surrounding gases.
B) They are areas of solid material on the sun.
C) They are warmer than the surrounding gases.
D) They are old spots on the sun.
Answers
Answer:
A) They are cooler than the surrounding gases.
Explanation:
Sunspots are dark, planet-sized regions that appear on the "surface" of the Sun. Sunspots are "dark" because they are cooler than their surroundings.
Sunspots are dark because they are cooler than the surrounding gases. So, the correct option is A.
What do you mean by Sunspots?Sunspots may be defined as patches that are present on the surface of the sun that are visible and dark in color with help of a telescope.
These sunspots are dark, spherical, and some planet-sized in structure. These structures appear dark because the temperature of this region is slightly lower than as compared to its surroundings.
Therefore, sunspots are dark because they are cooler than the surrounding gases. So, the correct option is A.
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Related Questions
Maltose is a carbohydrate molecule that provides energy to plants early in
their life cycle. Which elements are most common in a molecule of
maltose?
A. Carbon and hydrogen
B.copper and Nitrogen
C. iron and phosphorus
D.magnesium and sulfur
Answers
A. Carbon and hydrogen
Which statement is true about the nitrogen bases in DNA and RNAI
Answers
Answer:
Uracil (U) is found in RNA only. Thymine (T) is found in DNA only.
Explanation:
DNA has the nitrogenous bases adenine (A), thymine (T), guanine (G), and cytosine (C). On the other hand, RNA has the nitrogenous bases adenine (A), uracil (U), guanine (G), and cytosine (C).
Thus, only RNA has uracil (U) and only DNA has thymine (T).
answer please i will give brainiest
Answers
Answer:It C.Living organisms breakdown sugar from food to combine with oxygen making usable energy.
Explanation:Cellular respiration is about making food into energy. Since C is the only one with that aspect C can be the only answer.
Does anyone knows the word for complete this sentence 'Organisms need energy for chemical reactions to build larger molecules. They also need energy to move and to stay _____'
Answers
Pls help meeeee with that
Answers
Answer:
I have pictures to show of this assignment if you need help
Nitrogen fixation is the conversion of nitrogen gas into ammonia. Please select TWO answers of how this can occur:
A)air on top of the top layer of soil comes in contact with particular types of nitrogen-fixing bacteria
B)overflow of water within the soil
C)man-made fertilizers on farm fields exceed natural nitrogen levels in the soil and kill all the bacteria
D) by the intense energy of a lightening strike
Answers
How far can a flea jump to propel itself onto a new host
Answers
Answer:
13 inches
Explanation:
Fleas can jump double the amount of their own body.
Hope this helped Plz mark brainliest :))
Explanation:
While fleas don't have wings, they are able to catapult themselves 40 to 100 times their body length in distance and up to 2 feet in height. To say this is an impressive feat of athleticism would be an understatement.
List three ways you can tell a cell is cancerous when looking at it under a
microscope
Answers
Explanation:
1. Cancer cells will continue to divide and grow.
2. They will have more genetic changes compared to the other normal cells.
3. Abnormal membranes
4. Cytoskeletal proteins
5. Morphology
What does Ocean Basin mean
Answers
Answer: Ocean basin, any of several vast submarine regions that collectively cover nearly three-quarters of Earth's surface. ... A number of major features of the basins depart from this average—for example, the mountainous ocean ridges, deep-sea trenches, and jagged, linear fracture zones.
Explanation:
Answer:
ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earths surface. a number of major features of the basins depart from this average for example the mountainous ocean ridges deep sea trenches and jagged linear fracture zones
Explanation:
Does the cell theory apply to both eukaryotes and prokaryotes? Why or why not?
Answers
Answer:
Yes
Explanation:
During Translation what are linked together to form proteins?
Answers
Answer:
Explanation:
During translation, ribosomal subunits assemble together like a sandwich on the strand of mRNA, where they proceed to attract tRNA molecules tethered to amino acids (circles). A long chain of amino acids emerges as the ribosome decodes the mRNA sequence into a polypeptide, or a new protein.
The impact of radiation on plants was first recognized using:
ОА.
Rice
OB.
Wheat
O C.
Barley
OD.
Corn
Answers
Answer:
It's C. Barley
Explanation:
just took test on Edg
The diagram shows a plant cell before and after it is placed in a solution. After the cell is placed in the solution it changes shape.
Which table shows the initial concentration of solute in the cell and in the solution that would cause the cell to change shape,as shown in the diagram above?
A. Location-Solute Concentration
Inside cell-3%
Outside the cell-6%
B. Location-Solute Concentration
Inside cell-7%
Outside sidd-5%
C. Location-Solute Concentration
Inside cell-0%
Outside cell-0%
D. Location-Solute Concentration
Inside cell-12%
Outside celk-12%
Answers
Answer:
The answer is A.
Explanation:
The tonicity is hyper tonic solution. There is more water inside the cell and high solute concentration outside the cell. The water moves out of the cell and the cell shrinks. The plant will plasmolyze.
Here it is showing that the concentration inside the cell is 7% and outside is 5%. The correct option is B.
What is tonicity?Tonicity is a measure of the effective osmotic pressure gradient in chemical biology; the water potential of two solutions separated by a partially permeable cell membrane.
To describe whether a solution will cause water to move into or out of a cell, three terms are used which are hypertonic, hypotonic, and isotonic.
When a cell is immersed in a hypertonic solution, there is a net flow of water out of the cell, causing it to lose volume.
The direction and extent of osmotic flux are determined by the relative concentration of selective membrane-impermeable solutes across a cell membrane.
It is frequently used to describe the swelling-versus-shrinking response of cells immersed in a solution.
In the given image, the solvent concentration increases in the second image, which means its solute concentration was more and water concentration was less.
So, water translocated from outside the cell to inside.
Thus, the correct option is B.
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What is the part that pumps blood to the lungs called
Answers
What happens when a parent passes on a dominate gene to their
offspring? *
The phenotype is a mixture of both
The phenotype is risidom
O The recessive gene determines phenotype
The dominate gene determines phenotype
Answers
Answer:
The dominant gene determines phenotype
Explanation:
This is because some parents have dominant and recessive alleles. when they pass them on to their offspring,the more dominant genes they have,the higher the chance that trait will show in their offspring.
When a parent passes a dominant gene to their child, the dominant gene determines the phenotype.
What are dominant genes?Dominant genes are those that determine a hereditary trait even when in single dose in the genotype. That is, they determine its character even in the absence of its dominant allele.
With this information, we can conclude that when a parent passes a dominant gene to their child, the dominant gene determines the phenotype.
Learn more about dominant gene in brainly.com/question/5519888
what is not a way a tornado can form
Answers
Answer:
only cold weather
Explanation:
A couple is having a baby. They go to the doctor to find out the sex and they see
that the chart has the sex chromosomes as XX. Are they having a boy or a girl?"
Answers
answer:
a girl
explanation:
the X and Y chromosomes, also known as the sex chromosomes, determine the biological sex of an individual. females inherit an X chromosome from the father for a XX genotypemales inherit a Y chromosome from the father for a XY genotypemothers only pass on X chromosomesHow does fossil evidence support the scientific theory of evolution?
Answers
Answer: Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today
Explanation:
Good luck bro
During the process of photosynthesis, plants use energy from the sun to make food from carbon dioxide and water. What the types of energy to represent the energy transformation that takes place during photosynthesis.
Answers
Answer:
In short, photosynthesis uses energy from the sun to transform carbon dioxide from air to oxygen.
Photosynthesis uses energy from the sun to transform carbon dioxide and water to form glucose and oxygen
Here's the equation:
6CO2 + 6H20 -> C6H12O6 + 6O2
Hopes this helps!
Regarding Natural Selection, what does the term FIT mean?
Answers
Answer:
to an evolutionary biologist fitness simply means reproductive success and reflects how well an organism is adapted to its environment.We call them fit because of how successfull they reproduce not how well they do at athletic events
Explanation:
Answer:
The term "fitness" in evolutionary biology means the ability of an organism to pass on its genetic material to its offspring. Biological or "Darwinian" fitness is being able to live long enough to reproduce and keep the population or species alive.
Identify examples of adaptation in organisms
(Do not use the artic fox example)
Answers
Answer:
Frog adaptations
- thin skin which allows them to breathe through their skin
- strong hind legs and feet allow them to jump long distances
- small, thin body structure which allows them to be excellent swimmers
- bulging eyes allow them to be better hunters
Answer:
Camouflage, mimicry, and animals' body parts and coverings are physical adaptations. The way in which an animal behaves is an adaptation, too—a behavioral adaptation . Behaviors that animals are born knowing how to do are instincts . A lion preying upon a zebra and a bird building a nest are examples of instincts.
Explanation:
how is air like water in science
Answers
Plus they both help you with living.
Answer:
Water acts like air, according to Bernoulli's principle, because both are fluids. Bernoulli's principle can be applied to various types of fluid flow. Bernoulli's principle is valid for in compressible flows (e.g. most liquid flows like water) and compressible flows (e.g. gases like air) moving at low Mach numbers.
Explanation:
is a plane moving slowly on the run way potential or kinetic energy?
Answers
Answer:
I think it would be Kinetic energy
Explanation:
Offspring that are different from both parents are produced by...
(A. asexual reproduction) B. Binary fission) C. asexual reproduction) C.mitosis
Answers
Answer:
Sexual reproduction
Explanation:
There are two asexual so I'm going to assume you meant sexual because the rest of these answers create identical offspring.
Remember that sexual reproduction is how humans are made and we are very different from our parents!
PLEASE HELP THIS IS TIMED I'LL GIVE BRAINLIEST!!!!!!
The chart shows characteristics of two groups of mammals.
Mammal Characteristics
Which headings correctly complete the chart?
A. X: Marsupial
Y: Placental
B. X: Placental
Y: Marsupial
C. X: Monotreme
Y: Placental
D. X: Placental
Y: Monotreme
Answers
Answer:b
Explanation:
Answer:
X: Placental
Y: Marsupial
Explanation:
Took The TestWhich molecule would a bear store in its body as a source of calories during its winter hibernation?
O Carbohydrate
O Protein
O Lipids
O Nucleic Acid
Answers
Answer:
Lipids
Explanation:
Lipids are a source of long term energy.
How is adding the gray wolf back into the food web most likely to affect other
species in the food web?
A. The coyote population will increase.
B. The grass population will stay the same.
C. The beaver population will decrease.
D. The elk population will decrease.
Answers
Answer: D
Explanation:
Which of the following statements is correct?
Producers get energy indirectly from the sun
Animals get energy indirectly from the sun
Consumers get energy directly from the sun
The sun provides no energy
Answers
Answer:
animals get energy indirectly from the sun
Explanation:
:)
Help!!! 50 Points!!!
Answers
Answer:
Use the table to code for the seemingly mutated strand of DNA given!
For further help:
https://youtu.be/ACwegTrJh0U
Aquatic Plants
Plz helpp
Answers
5. It can stabilize sediments, generate organic material needed by small invertebrates, and add oxygen to the surrounding water.