how long does it take for a photon to travel through the convection zone
Answer:
50 million years
Explanation:
It can take a photon as long as 50 million years to travel all the way through the radiative zone. The convection zone surrounds the radiative zone. In the convection zone, hot material from near the Sun's center rises, cools at the surface, and then plunges back downward to receive more heat from the radiative zone.
If brown hair is dominant and red hair is recessive, what are the possible genotypes for Sally is she has brown hair?
Answer:
the answer is BB, Bb
Explanation:
If brown hair is dominant you need to consider the fact that it cant be bb otherwise she would have red hair because lowercase genotypes mean recessive. this eliminates the first and third answer leaving you with the second and fourth answer and we can eliminate the second answer because it says "what are the possible genotypes" meaning we need to list all the possible answers which leaves you with the fourth option.
Which of the following steps occurs in the light-dependent reactions of photosynthesis but not in the light-independent reactions?
Choose 1 answer:
(Choice A)
Chemical reactions produce glucose, ADP, and NADP^+
(Choice B)
Chlorophylls absorb light energy, which eventually breaks the bonds of water molecules.
(Choice C)
ATP and NADPH are used for carbon fixation.
Answer:
I think it is Chemical reactions produce glucose, ADP and NADPH
Explanation:
Photosynthesis is a chemical reaction that takes place to convert light energy. The photosynthetic light-dependent reaction forms glucose, ATP, and NADP⁺. Thus, option A is correct.
What is a light-dependent reaction?
A light-dependent reaction is a photosynthetic reaction that occurs in the presence of sunlight and produces chemical energy in the form of NADPH and ATP.
The products of the photosynthetic light-dependent reaction are used in light-independent reactions. In light-dependent, the photosystem gets excited and produces ATP from ETC, leading to reduction of NADP⁺ and photolysis of the water molecule.
Therefore, ADP and NADP+ are produced at the intermediary stage of the light-dependent reaction which makes them different from the light-independent reaction.
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What is the Spitzer telescope's primary function?
Answer:
The Spitzer Space Telescope, formerly known as the Space Infrared Telescope Facility, is an infrared telescope that studies the early universe, young galaxies and forming stars, and is used to detect dust disks around stars, considered an important signpost of planetary formation. Jul 30, 2008Explanation:
Hopes this helps. Mark as brainlest plz!What is the role of transport proteins in the cell membrane
Explanation:
Membrane transport proteins fulfill an essential function in every living cell by catalyzing the translocation of solutes, including ions, neurotransmitters, and numerous drugs across biological membranes
New combinations of DNA and genes can come from different sources in the genetic material that is passed from to offspring. Sources of genetic material can come from in meiosis I, errors during, in meiosis, and from environmental factors. When these new combinations are passed on to, this increases - potentially, the species. Remember, for a mutation to be passed on through sexual reproduction (meiosis), the change to the MUST be present in the.
Word Bank:
DNA DNA replication mutations offspring parents crossing-over gametes nondisjunction genetic diversity benefiting
New combinations of DNA and genes can come from different sources in the
genetic material that is passed from parents to offspring.
Sources of genetic material can come from DNA replication in meiosis I,
errors during nondisjunction, in meiosis, and from environmental factors.
When these new combinations are passed on to offspring this increases
genetic diversity potentially, the species.
Remember, for a mutation to be passed on through sexual reproduction
(meiosis), the change to the DNA must be present in the gamete
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define the following terms:dispersion and refraction
Explanation:
Dispersion of light is the splitting of white light into its constituent colors due to the refractive index of the surface and the wavelength of the light. If the light entering the prism is not of a single colour then the emergent beam also has different colours arranged in a definite order.
In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.
Investigators are studying a signaling pathway in which an RTK activates the monomeric GTPase Ras.
a. True
b. False
Observe the cell as it moves from stage to stage through cell division. What trends can you describe about the cell and its internal contents?
Answer:
The cell is going through a state of mitosis.
Explanation:
Note the spindle fibers moving apart and splitting the chromosomes.
In radish seeds, the roots grow in a downward direction, ensuring the plant is anchored in soil and has access to water and nutrients while the shoots grow in an upward direction ensuring the plant can absorb sunlight. How would the response by the roots and shoots be categorized? if someone can answer this id be happy <3
Answer:
I’m not smart for this but I could try
Explanation:
The way is that the roots absorb the water and store for the plant. This I know.
the shoots I don’t know much but I think the shoots help the roots with absorbing nutrients and stuff. I think they absorb the sunlight im sorry if this is not correct I’m not that smart..
please help this is for a presentation.. Is the spongy parenchyma cell unicellular or multicellular?
Determine the two most important skills a synthetic
biologist will need in order to make themselves a more marketable employee. In
what ways can they use these skills to improve society? Give an example of what
this could look like.
A synthetic biologist must be ingenious in creating new systems that will benefit the society.
A synthetic biologist is a scientist whose responsibility it is to create new biological systems and devices for various applications. These systems can be very useful in solving novel biological problems.
For a synthetic biologists to be more marketable as an employee, the synthetic biologist must be ingenious in creating new systems that will benefit the society. This skill is relevant, not only to land a new job but to make the society a better place.
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the type of cell division that results in four haploid cells is known as
Answer: Meiosis
Explanation:
The electron transport process makes water and ATP and is sometimes called
because it requires oxygen.
Answer:
respiratory chain... hope that's right
you get 50 points if you can answer correctly please help
Which is the best description of a scientific theory?
A. a statement about how two different variables are related
B. a collection of laws that are explained the same way
c. an explanation of many observations and tested hypotheses
d. an accepted fact that has always been observed to be true
Answer:
c.an explanation of many observations and tested hypotheses
Explanation:
Give me brainlist please
All cells come from other cells. New cells are created by a process called cell division. To start cell division, a cell grows bigger and makes copies of the parts inside it. Then, the cell and its parts separate into two new cells. Each new cell contains the same types of cell parts as the original cell. Later, each of these cells may divide again to form more cells. When a multicellular organism's cells divide, the organism can grow. Each resulting cell is part of that organism. When a unicellular organism divides, each resulting cell is a separate unicellular organism. The micrographs below show cells from two different organisms: Giardia, a unicellular protist, and banana, a multicellular plant. Giardia cells in a banana Which of the following statements are true? Select all that apply.?
a. A rose bush cell can divide to form two rose bushes
b. If the bacterium divides, it will become a multicellular organism
c. When a rose bush cell divides, it copies its parts then divides into two cells
d. The bacterium was formed when another bacterium divided
Answer:
c. When a rose bush cell divides, it copies its parts then divides into two cells and
d. The bacterium was formed when another bacterium divided
Explanation:
C is correct because the cells inside are part of a larger being (the rose bush), when they divide they are simply creating more cells (hence making the rose bush grow).
D is correct because bacterium are unicellular organisms, meaning they are themselves single cells that are organisms, unlike the rose bush consisting of many cells.
Please rate this answer choice 5 stars and leave a thanks.if the atmosphere is like a greenhouse what is the glass?
Answer:
earth's atmosphere is like the glass in a greenhouse because sunlight streams through the atmosphere and heats the Earth. As the heat radiates up from the Earth's surface, some escapes into space. The rest of the heat is absorbed by gases in the troposphere and warms the air.
Explanation:
I hopes its help :)
a population undergoing natural selection would see a faster and more dramatic change in allele frequency if the starting generation contained more of the allele being selected against.
Answer: As the change in allele frequency causes the change in genome of the living organism inside few generations.
Explanation: The effect may leave the organism with the loss of some genes, while it can effect cause the loss of some of the beneficial genes inside the genome of the organism. Along with that the process can also improve the sequence of genes which are abnormal in nature.
what is the difference in solubility of triglyceride and the products of their hydrolysis
Answer: Triacylglycerols are the major constituents of oils and fats of both plant and animal origin.
Explanation:
Hope this helps.
The products of hydrolysis of triglycerides are fatty acids and glycerol. While fatty acids, like triglycerides, are insoluble in water, glycerol is soluble in water.
Why are triglycerides insoluble?Triglycerides are esters of fatty acids and alcohol, mostly glycerol. The fatty acid chains are inked to the glycerol molecules with the help of covalent bonds.
This means that the triglyceride molecule is uncharged and will therefore remain insoluble in water but soluble in organic solvents.
Also, products of hydrolysis of triglycerides are fatter acids and glycerol. While fatty acids will remain insoluble in water, glycerol is soluble in water.
Glycerol is alcohol with 3 hydroxyl groups, this is why it is also called a polyol. They are able to hydrogen bonds with the nearby water molecules.
Therefore, triglycerides and fatty acids are insoluble and glycerol is soluble in water.
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Glycolysis requires an input of energy. What molecule provides this energy?
Answer:
Glycolysis is actually a series of ten chemical reactions that requires the input of two ATP molecules. This input is used to generate four new ATP molecules, which means that glycolysis results in a net gain of two ATPs.
Explanation:
hope it helps
Which part of a neuron is most similar to other cells in the body?
dendrite
axon
glia
body
Answer:
D. The Cell Body
Explanation:
The cell body has genetic information, keeps the neuron's structure, and gives it the energy it needs to do things. A neuron's soma, like other cell bodies, has a nucleus and other special parts.
Answer:
it is the body
Explanation:
I took it and got it right have a nice day
Which letter in Figure 1 represents meiosis? Why?
Which letter in Figure 1 represents mitosis? Why?
The letter D in Figure 1 represents meiosis, while letter A represents mitosis. Meiosis is a reductional cell division.
Mitosis is a type of cell division where a parent cell divides to produce two genetically identical daughter cells (in this case, diploid cells).
Meiosis is a reductional cell division where a parent cell divides twice to produce four daughter cells having half of the genetic material.
Meiosis occurs in germinal cells, while mitosis occurs in somatic (body) cells.
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Make in you own words
When we leave the calvin cycle we have transformed into G3P which is a sugar that contains 3 of me!
We don’t stay in this form for long though
Biology alleles question
Answer:
The answer is A. If the answer would've been B, that means the yellow allele would've been dominant over the red allele.
Red skin color: RR, Rr, or rR.
Yellow skin color: rr
Which of these changes is a possible negative consequence of farmers
allowing livestock to overgraze a pasture?
O A. Desertification
O B. Shortage of freshwater
O c. Deforestation
O D. Abundance of clean air
Given what we know, one of the possible negative consequences of farmers allowing livestock to overgraze a pasture is desertification.
What is Desertification?In simple terms, desertification is when the land becomes so dry and void of life that it can be considered a desert. This can be caused by many factors, primarily the lack of vegetation.How can overgrazing lead to Desertification?Overgrazing can lead to desertification due to the fact that the plants and vegetation are not given the opportunity to regrow.The presence of vegetation allows the soil to remain moist and fertile by moving minerals and water through it. Overgrazing causes a lack of vegetation which creates dry and infertile land, which leads to complete desertification.Therefore, we can confirm that one of the possible negative consequences of farmers allowing livestock to overgraze a pasture is desertification due to the damage caused to the soil in the absence of vegetation.
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which animal is the closest living relative to a t-rex?
which animal is the closest living relative to a t-rex?
Answer:-Chickens
Explanation:-A small mass of T-Rex DNA was discovered, which closely resembles the DNA of modern chickens, further supporting the fact that chickens evolved from dinosaurs.
According to the dichotomus key, organism four is an?
Answer:
Did you know when you add 1 to 1 it will become 3Two students were discussing an article about a possible mission to Jupiter. Several ideas
about gravity came up during their discussion and they are listed below.
1.
II.
111.
The Sun's gravity is pulling on Jupiter and keeps the planet in orbit
You would have the same weight on Jupiter as you do on Earth since
weight is a property of the object.
A rocket traveling to Jupiter would just need to travel beyond Earth's
atmosphere before the gravitational force would be zero.
The gravitational force of Jupiter keeps its moons orbiting.
IV.
Which of the statements above are true? Circle all that are correct.
Answer:
The Pull of the Planets is a 30-minute activity in which teams of children model the gravitational fields of planets on a flexible surface. Children place and move balls of different sizes and densities on a plastic sheet to develop a mental picture of how the mass of an object influences how much effect it has on the surrounding space.
This activity should be conducted after Heavyweight Champion: Jupiter!, which allows the children to discover the force of gravity in the solar system. These concepts involve more advanced science than previous activities in Jupiter's Family Secrets, and they explore more deeply the science of the Juno mission and the rich information it will return to us. Facilitators who choose to undertake this activity should have a firm grasp of the scientific basis so that misconceptions are not introduced to the children.
Explanation:
what type of light (energy) does each light start out as?
Draw a punnet square showing all the possible blood types for the offspring produced by type o mother and a type an father