Answer:
Explanation:
Melanin is transferred from melanocytes to keratinocytes. Describe the effect of exposure to UV rays on the skin.
Answer: study
Explanation: You need to study and don’t cheat
Which is(are) a key role (or roles) of most family therapists?
How does exercise build muscles?
Answer:
Exercise builds and strengthens muscles, which can protect the bones from injury, and support and protect joints affected by arthritis. Strong muscles also give stability and improve balance and coordination. Exercise also improves blood supply to the muscles and increases their capacity to use oxygen
Hope this helped!
Would the movement of oxygen through the cells?
If a double-stranded segment of DNA has been found to have 23 purines and 15 thymines, how many guanines are there?
Answer: 4 Guanines
Explanation: Following Chargaff's ratio that describes the ration of purines to pyrimidines as 1:1, if there are 23 purines, it follows that there should be 23 pyrimidines; 15 Thymines should therefore be hydrogen bonded to 15 Adenines by complementary base pairing.
We are then left with 8 nucleotides composed of guanines and cytosines in complementary base pairs. This means that half that number (4) should be guanines and the rest cytosines.
The DNA is a double-stranded molecule, which is made up of purine, pyrimidine, a pentose sugar, and phosphate backbone. Chargaff's rule states that any species will have a stoichiometric ratio of 1:1.
The number of guanines in the double-stranded DNA is 4.
In the DNA, the base pairing occurs as:
The guanines bind with cytosine through hydrogen bonding. The adenine binds with thymine with two hydrogen bonds.In the given nucleotide, there are 23 purines (guanine and adenine). There are 15 thymines in the DNA molecule. Based on the Chargaff rule, the 15 thymines will bind to adenine, leaving only 4 guanines and 4 cytosines. Thus, there will be 4 cytosines left to bond with the guanines to achieve Chargaff's ratio of 1:1.
Therefore, the guanine in the nucleotides will be 4.
To know more about Chargaff's rule, refer to the following link:
https://brainly.com/question/19156457
Which factor has the least impact on the potential energy or kinetic energy of an object?
A) Mass
B) Speed
C) Time
D) Height from the ground
how are logistic and exponential growth similar?
Answer:
because both are same words
Explanation:
Answer:
Both growth models begin with a population that is growing at a constant rate.
Logistic growth follows a period of exponential growth, as population growth slows or stops.
Exponential growth is only possible when resources are unlimited.
Logistic growth shows what happens when resources become scarce and population growth slows.
Explanation:
What is a coral reef made of?
A. Grass
B. Dead animals
C. Volcanic rocks
D. Sand
Answer: B. Dead animals
Explanation:
Coral reefs are made with calcium. How do they get this calcium? From the skeletons of various organisms in the ocean.
How old do paleontologist believe the earth is?
Answer:
Scientists now know the Earth is actually 4.54 billion years old, an age built on many lines of evidence from the geologic record.
Explanation:
what product is left over after photosynthesis
Answer:
glucose/sugar
Explanation:
Hope this helps!
Answer:
Im pretty sure the oxygen is released from leaves while the energy contained within glucose molecules
Explanation:
Please help me ?!!!!
Answer:
the last one I am guessing
Explanation:
If right can you give me brainiest
Hope you have a wonderful day:)
When bonds are broken between atoms in molecules, energy is
a. stored as ADP
b. released
c. created
d. conserved
ANSWER: b. released
Explanation:
What TWO things cause denaturation of enzymes:
A _____ is the structure that contains the DNA of the cell.
A. Vacuole
B. Chromosome
C. Centromere
D. Centrosome
E. Centriole
The answer is chromosome
The chromosome is densly packed DNA.
Cellular respiration is the chemical basis of how cells release energy from foods. When you eat an apple, your cells extract energy. The text below explains how cells use cellular respiration to extract energy from an apple. Choose the parts of the sentence that are incorrect.
The apple first enters the digestive tract through the mouth, where digestion begins with chewing. Enzymes begin to break down the apple in the mouth. From the digestive tract, the glucose from the digested apple is absorbed into the bloodstream, where it is brought to cells throughout the body. In the chloroplast, the glucose begins cellular respiration. The molecules react with carbon dioxide to release energy. Oxygen is produced as waste
Answer:
chloroplast is def wrong
Explanation:
it is mitochondria
Having an accurate model of an atom is important except..
A. It can help give information on how atoms work.
B. We use the model to learn how to create new things.
C. Learning about atoms will help create better organisms.
D. It can help support the explanation of the origin of the universe.
How they worded this question does not make sense to me.
Answer:
I think the answer is D. but I'm not 100% sure.
Answer:
The answer to your question is going to be A.
Explanation:
It teaches us how atoms work. and it also gives us more information about how and what they are!!
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the overall chemical equation that describes photosynthesis is below. By analyzing this equation, which property of photosynthesis can be identified
what are the choices
Explanation:
photosynthesis is a way that plants make their own food.
5. The cells of multicellular organisms are"
What structure provide shape and support for the cell?
A.Chloroplast
B.Mitochondria
C. cell Wall
D.Golgi bodies
The cell wall provides shape and support for the cell. Therefore, option (C) is correct.
What is cell wall?In the cells of plants, fungi, and some bacteria, the cell wall is a strong structure that encloses the cell membrane. It has a solid and strong structure because it is formed of chitin, which is found in fungi and cellulose in plants. The cell wall supports it mechanically, shields it from harm, and aids in keeping its shape. Moreover, it stops the cell from bursting or collapsing under pressure, which is crucial for plant cells because they must maintain turgor pressure in order to function properly.
Animal cells, on the other hand, lack a cell wall and instead contain a cytoskeleton formed of protein fibers that gives them stability and shape. Organelles that perform photosynthesis include chloroplasts, mitochondria, and golgi bodies, which also produce energy and process and transport proteins inside of cells.
Learn more about cell wall, here:
https://brainly.com/question/965751
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bruising of brain tissue
Answer:
Cerebral contusion
Explanation:
a form of traumatic brain injury, is a bruise of the brain tissue. Like bruises in other tissues, cerebral contusion can be associated with multiple microhemorrhages, small blood vessel leaks into brain tissue. Contusion occurs in 20–30% of severe head injuries.
1. The parts of the flower involved in reproduction are ________ and __________
2. The anthers bear the ___________the microspore mother cells give rise to _______or pollen grains after meiotic cell division.
Answer:
1. Stamen and pistil
2. Pollen, microspore
Explanation:
The flower is the reproductive part of certain plants called ANGIOSPERMS. They make use of their flower for sexual reproduction. The different parts of the flower work together to achieve a common goal, which is to reproduce, however, they do it in various ways. For example, accessory parts like petals attract pollinators. The major parts of the flower that are directly involved in the reproductive act are STAMEN (male) and PISTIL (female).
The stamen which constitutes a structure called ANTHER bears the pollen grains or microspore, which is made when the microspore mother cells undergo meiotic division. Hence, the pollens are released from the anther of a male flower (stamen), into the stigma of the female flower (pistil).
plz help me I will give brainlyest to first right answer
Answer:
Explanation:
1. Decomposition
2. Fungi
3. Evaporation
4. Precipitation
5. Condensation
6. Rhibizium
Answer:
1. decomposition
2. rhizoblum
3. evaporation
4. precipitation
5. condensation
6. fungi
A pathogen that feeds off and causes harm to other organisms is called what?
Briefly explain how genes affecting a polygenic characteristic are located with the use of QTL mapping.
Answer:
QTLs can be identified by using molecular markers associated with the variation of the trait
Explanation:
A Qualitative Trait Locus (QTL) is a chromosomal region correlated with the variation of a quantitative trait, i.e., a phenotypic trait controlled by many genes. QTL mapping refers to the identification of QTLs associated with a particular trait. In QTL mapping, molecular markers (i.e., small and identifiable DNA fragments) are used to develop genetic linkage maps which are further used to discover QTLs. This technique (QTL mapping) consists of evaluating the phenotypic segregation of the trait in the progeny by statistically correlating phenotypes with patterns of genetic segregation (segregation of the molecular markers).
(FW.02]The diagram below shows a portion of the water cyle.
Y
Spring
Aquifer
What does Y most likely represent?
O precipitation
Orecharge
Oatmosphere
Ogroundwater
Answer:
I would have to say recharge of the aquifer by using ground water after some precipitation.
Explanation:
Melting snow or rain increases ground water that percolates down to replenish the aquifer.
Elevation changes causes the aquifer to flow up in low spots/springs on the surface. And the cycle repeats through evaporation and plant respiration.
Which wavelength of light are more stretched—red light or blue light?
Answer:
Red
Explanation:
Blue light has a shorter wavelength than red.
Use the above facts and rules to answer the following questions. Also provide the Prolog query that would resolve the answer. What swims? Do lizards have scales? What eats fish? What do things with scales eat? Add the following rules to the program: Reptiles are things with scales that slither or crawl. Fish are things with scales that swim and eat fish. Insects fly and are eaten by reptiles and bugs.
Answer:
Fish can swim.
Explanation:
Fish are cold blooded organisms that has the ability to live and swims in the water or aquatic ecosystem. Yes, lizards have scales on their bodies because lizards belongs to the reptile family. Organism such as octopuses, squid, sharks, grizzly bears, snakes, turtles, and sea gulls feed on fish. Reptiles are the organisms whose body covers with scales.
Drag each tile to the correct box.
Sort the types of energy according to the order in which they move through this system:
Water stored in dams falls freely with the force to make a turbine move. The turbine moves and produces electricity. This electric energy is
supplied to homes. At home, we use electricity for heating, cooling, and lighting.
Put these in order:
Electrical energy
Light energy
Potential energy
Kinetic energy
Answer:
Electrical energy > kinetic energy > light energy > potential energy
Explanation:
if some can help me with my biology final the whole 25
Answer:
add the answers if you dont know
Explanation:
Answer:
KC is looking at cells in biology class, but he doesn't know where they came from. He sees that the cells under his microscope have cell walls and chloroplasts. Therefore, KC is likely observing cell from:
A leaf that got blown onto the floor.
Plant cells are the only cells w/ chloroplast!
Explanation:
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AUG is generally a start codon. what is the amino acid that AUG codes for ?
WILL MARK BRAINLIEST! :)
Diversity occurs in many places in meiosis. In what process is the first place where the pieces of DNA switch positions with the homologous sister chromatids?
A. Interphase
B.Independent Assortment
C. Crossing Over
D.Anaphase
E. Randomness of egg and sperm meeting
Answer:
crossing over
Explanation:
I had it on a bio exam. i got it right