What did Daniel Branton's freeze fracturing image reveal?A. That the small bumps in the membrane are the proteins.B. The actual color of our cell's membrane.C. That there are actually 3 layers, the middle layer was too small to see before.D. That the membrane is sensitive to the cold, and becomes bumpy when frozen.
Answers
In the picture of this experiment, we can see three different layers from top to bottom a yellow one, a white one, and a brown one. We can see also that they differ one from another, not only in their color but in their content. This is due to the yellow layer being in fact the part of the cell membrane which is closer to the extracellular media, while the brown layer is the part of the cell membrane which is closer to the cytoplasm of the cell.
The reason of this is because the majority of the cell membrane proteins are closer to the cytoplasm rather than to the extracellular media.
Having this clear, we can say that the correct answer to the question is the first one: A. Daniel Branton's freeze fracturing image revealed that the small bumps in the membrane are the proteins of the cell membrane.
Related Questions
which of the following level of genetics how the forces of nature have influenced the spread of traits?
Answers
The subsequent genetic level what role natural forces have had in the spread of qualities (A) genetics in populations
How do genes differ from DNA?
Your DNA is what builds and keeps up your human anatomy. Genes are parts of your DNA which are responsible for your unique physical characteristics. Your brain's cells are directed by a comprehensive manual that is all around you. Many of your characteristics, like your skin and hair colors, are determined by genes that are passed down to you. Perhaps Emma's mother carries both the brown and red hair genes, and she gave Emma the red hair gene.
Her red hair might be explained if her father carries two red hair genes.
To know more about genes visit:
brainly.com/question/8832859
#SPJ4
Complete question
Which of the following studies how the forces of nature have influenced the spread of traits?
A) Population genetics
B) Transmission genetics
C) Molecular genetics
Name one disadvantage of light microscopes.
Answers
Answer: Bad Resolution.
Explanation:
Name three components of the blood
Answers
Answer:
plasma, red blood cells, white blood cells, and platelets.
Explanation:
Hope this helps!
2 Itching and other skin problems are signs that a cat or dog may have fl eas. Fleas are parasites known for their biting and blood-sucking abilities. When they bite, fl ea saliva enters the pet’s circulatory system, sometimes causing an allergic response commonly seen as a “hot spot” on the pet’s neck or the base of its tail
Answers
Itching and other skin problems are signs that a cat or dog may have flea. Fleas are parasites known for their biting and blood-sucking abilities. When they bite, flea saliva enters the pet’s circulatory system, sometimes causing an allergic response commonly seen as a “hot spot” on the pet’s neck or the base of its tail.
Fleas are tiny parasitic insects that infest the fur of dogs and cats. They feed on blood and cause skin irritation that results in itching. If the problem is severe, it can lead to more significant health issues. Pet owners should watch for signs of fleas and treat their pets promptly to avoid complications. Fleas lay eggs on the skin of dogs and cats, which hatch and develop into larvae.
The larvae feed on the skin, shedding as they mature. Adult fleas emerge from the larvae, biting the host to feed on blood. The process repeats itself, with adult fleas continuing to lay eggs on the skin of the pet.The most common sign of fleas in dogs and cats is itching. Pets will often scratch themselves, bite their skin, or lick excessively to relieve the irritation.
Other signs of fleas include red or inflamed skin, hair loss, and the appearance of small, raised bumps on the skin. These bumps are often referred to as "flea dirt" and are the waste products of the fleas. In severe cases, anemia, an allergic reaction, or the transmission of other parasites or diseases can occur.
Flea infestations can be treated with a variety of products, including topical treatments, shampoos, and collars. It is essential to follow the instructions on the product label and treat the pet and the surrounding environment to eliminate the fleas. Prevention is key to avoiding flea infestations, so pet owners should maintain a regular grooming and flea prevention schedule.
Know more about parasitic insects here :
brainly.com/question/21982745
#SPJ8
1. ______ help blood clot following wounds, so that wounds stop bleeding.
2. Most of blood is made of the yellow-colored liquid _______.
3. _______ blood cells are part of the immune system and fight off infections.
4. Blood must reach every single cell in the body. In order to do this, blood flows through the _______, which are small blood vessels, often only 1 cell thick.
5. Most _______ carry oxygen-rich blood away from the heart and are coded red in anatomy diagrams.
6. Blue-colored blood vessels indicate low-oxygen blood and are called _______.
7. The _______ is the main artery out of the heart, taking freshly-oxygenated blood from the left ventricle to deliver to the rest of the body.
8. The right ventricle pumps blood to the lungs through the _______; this is typically colored blue even though it carries blood away from the heart.
9. _______ is a waste gas that is carried by blood back to the lungs.
Respond to the following based on your reading.
Write out the process of blood flowing through the heart. Begin with low-oxygen blood returning to the heart from the body. Your response should include the terms: pulmonary artery, aorta, pulmonary vein, superior vena cava, inferior vena cava, left atrium, right atrium, left ventricle, right ventricle, mitral valve, tricuspid valve.
Answers
The statements for filling the blanks are:
1. Platelets help in the clotting of the blood during a time of injury. It is present in the blood and is activated when the bleeding starts.
2. The blood is primarily composed of plasma, cellular elements, and formed elements.
3. White blood cells or leucocytes are part of the immune system, which help in eliminating foreign bodies or pathogens.
4. The blood is the circulatory fluid that transports nutrients and gases. The exchange of these substances at the cellular level is carried out by capillaries.
5. Most of the arteries in the human body carry oxygen-rich blood from the heart to different parts of the body.
6. Blue-colored vessels that carry deoxygenated blood are known as veins. These carry blood from different parts of the body to the heart.
7. Aorta is the primary artery, which carries oxygen-rich blood to different parts of the body from the left ventricle of the heart.
8. The pulmonary artery is responsible for carrying the deoxygenated blood from the heart to the lungs.
9. Carbon dioxide is the waste gas, which is delivered to the lungs from the different parts of the body.
To know more about the circulatory system, refer to the following link:
https://brainly.com/question/7184632
Answer:
Platelets
plasma
White
capillaries
arteries
veins
aorta
pulmonary artery
Carbon dioxide
The blood returns to the right atrium through the superior vena cava and inferior vena cava and is transferred to the right ventricle through the tricuspid valve. The right ventricle pumps the low-oxygen blood through the pulmonary artery to the lungs. Once the blood has been oxygenated in the lungs, it goes to the left atrium through the pulmonary vein. The left atrium sends the blood through the mitral valve to the left ventricle, which then pumps the blood out to the body through the aorta.
Explanation: PF
Vincent is considering buying a creatine supplement after he saw a variety of these ergogenic aids advertised in a fitness magazine. Which of
the following is a common deceptive marketing tactic that he should watch out for?
A. an offer for a free mail-order anabolic assessment
B. a recommendation to assess body composition through underwater weighing
C.evidence about creatine's effect on resistance exercise and sprinting
D. a warning about creatine's short-term side effects
Answers
Answer:
A
Explanation:
the answer to this question is A
For considering buying a creatine supplement after he saw a variety of these ergogenic aids advertised in a fitness magazine here the exceptional things should be left out and one should focus on his own body. The correct answer is option A.
What is anabolic reaction ?It is defined as the sum of all the reactions that are taking place inside the body that are dealing with the formation of products in itself.
The marketing tactic that is dealing with the free of cost along with that winning customers' trust and the response of the customers in order to prove trust and faith in the product thus here in this process the person should opt totally for an offer for a free mail-order anabolic assessment.
Giving any kind of scientific information about the product would lead to certain problems and the issues in claiming any kind kind of medical knowledge thus this is the helpful option for this.
Learn more about anabolism at :
https://brainly.com/question/29461502
#SPJ2
Biotic factors found in deciduous forest would include
Answers
Answer:
lichen, moss, shrubs, maple tree, frogs and there are many more biotic factors found in deciduous forest
Please answer quickly.
The trait for flower color is highly variable among certain species of rose plants, leading to the formation of flowers of different colors. How did the flower color variation in rose plants come about?
Select one:
a through mutation
b. through pollination
c. through natural selection
d. through asexual reproduction
Answers
Answer:
The answer is A hope it helps
A disruption in a _________ species has a cascading effect on the ecosystem.
Answers
Answer:
endangered?
Explanation:
I think because if a species dies, it can effect the ecosystem
I need help on a biology assignment . Question 24
Answers
Question 24.
Answer:
The sequence of amino acids in a protein determines its function. If the sequence between two organisms is similar, chances are the functions of their proteins will be similar, meaning they will have similar functions.
The unique amino acid sequence of a protein is reflected in its unique folded structure. This structure, in turn, determines the protein’s function.
Each protein is a different amino acid sequence, which is automatically folded into a 3D structure, then fixed by subsequently formed hydrogen bonds.
The type of smooth muscle cells known as ____________ , are found in piloerector muscles and in the iris of the eye.
Answers
Multi unit. The lungs' airways, major arteries, and the eye's ciliary muscles are all examples of multi-unit smooth muscle.
As opposed to single-unit smooth muscles, multi-unit smooth muscles offer far finer control since each smooth-muscle cell receives its own synaptic input. The role of smooth muscle in the regulation of organ systems is far broader than previously thought.
The respiratory, urinary, and reproductive systems all have smooth muscle in their pathways. An instance of a smooth muscle found in the eyes is the ciliary muscle, which also affects the lens's shape and the iris's ability to expand and contract. In response to chilly temperatures or fear, hair stands up straight in the skin due to smooth muscle cells like those of the arrector pili.
Learn more about smooth muscles here:
https://brainly.com/question/22044935
#SPJ4
DNA is made of a sugar, a phosphate, and a nitrogen base. Which of these
three make up the instructions to code for your traits?
Answers
Answer:
In turn, each nucleotide is itself made up of three primary components: a nitrogen-containing region known as a nitrogenous base, a carbon-based sugar molecule called deoxyribose, and a phosphorus-containing region known as a phosphate group attached to the sugar molecule
Also I got this from my friend so all credits go to her
Can someone help me with this question WILL MARK BRAINLIEST 100 POINTS!!
Answers
a.) the four potential genotypes are Ll, Ll, ll, and ll
b.) the percentage of the offspring that will have long antenna will be 50%
"choose the description of the biological rationale for each of the following allosteric phenomena:
Activation of pyruvate carboxylase by acetyl-CoA
This is a signal that pyruvate can be shunted into gluconeogenesis instead of being oxidized in the citric acid cycle. In addition, it is a signal of unbalanced fat and carbohydrate metabolism.
This is a signal that part of available pyruvate can be metabolized into oxaloacetate, when the energy charge is low and production of additional ATP through the citric acid cycle is required.
This is a signal that pyruvate can be oxidized in the citric acid cycle instead of shunted into gluconeogenesis. In addition, it is a signal of activation carbohydrate metabolism .
This is a signal that pyruvate can be oxidized in the citric acid cycle as well as can be shunted into gluconeogenesis. In addition, it is a signal of activation fat metabolism."
Answers
Activation of pyruvate carboxylase by acetyl-CoA will result in the generation of glyconeogenesis, it will appear when there is a high oxidation of fats. So the correct option is A.
What is a allosteric phenomena?Allosteric regulation is a type of regulation that occurs in enzymes where an allosteric modulator regulates it by binding to an allosteric site, this will cause it to change its conformation, modifying the affinity for the substrate it is going to catalyze.
Acetyl-coa will work as an allosteric modulator of pyruvate carboxylase, deciding whether it goes through the gluconeogenesis pathway or not.
Therefore, we can confirm that the correct option is: 'this is a signal that pyruvate can be shunted into gluconeogenesis instead of being oxidized in the citric acid cycle. In addition, it is a signal of unbalanced fat and carbohydrate metabolism'.
To learn more about allosteric visit: https://brainly.com/question/13708316
#SPJ1
Select the correct answer.
Assume that you are a member of a special interest group that wants to raise taxes on certain items. Who would you present your idea to if you
wanted it to be proposed as aa bill?
OA a Supreme Court justice
OB. the president
OC. the American people
OD. a senator
OE.
a member of the House
Answers
Answer:
the senator
Explanation:
he makes the bills
How are birds different from mammals ?
Answers
Answer:
there is a major diff between birds and mammals in the female reproductive system as birds produce large yolk-filled eggs. The precursors of the yolk r synthesized by the liver. Another diff is that there is a single ovary and oviduct in bird
Explanation:
Answer:
The difference is the female reproductive system as birds produce large yolk filled eggs
The ____ is a small thin-walled tube that leads from the floor of the urinary bladder to the outside of the body. Group of answer choices
Answers
Answer:
Urethra
Explanation:
I'm pretty sure it would be the urethra but if it's not let me know.
The urethra is a small thin-walled tube which leads from the floor of the urinary bladder to the outside of the body.
What is the excretory system?Human excretory system includes organs that facilitate the removal of nitrogenous wastes out from the body. The main excretory organs in the human body include kidney, ureter, urinary bladder and urethra. Kidneys are the organs which filter blood and urine is the filtrate obtained that is excreted out of the body.
The urethra is the small thin-walled tube that lets urine leave from bladder and the body. In the males, urethra passes through the prostate gland. In the females, the urethra is much shorter. It runs from the bladder to open in front of the vagina.
Learn more about Urethra here:
https://brainly.com/question/9403169
#SPJ2
Base your answers to questions 1 through 3 on the diagram below and on your knowledge
of Earth science. The diagram represents the expansion of a portion of the universe from its
origin until the present. The timeline represents billions of years. Letter X indicates two
celestial objects.
Timeline (billion years ago)
Present T
5-
10-
Origin of
Universe
15-
1. Two pieces of evidence that support the theory that the universe is expanding are the
A) red shift of light from distant stars and the existence of nuclear fusion
B) red shift of light from distant stars and the existence of cosmic background
radiation
C) blue shift of light from distant stars and the existence of nuclear fusion
D) blue shift of light from distant stars and the existence of cosmic background
radiation
polestial objects labeled X are
Answers
The two pieces of evidence that support the theory of the expanding universe are the red shift of light from distant stars and the existence of cosmic background radiation.
The correct answer is option B.
1. Red shift of light from distant stars: The observation of redshift in the light coming from distant galaxies provides evidence for the expansion of the universe. Redshift occurs when the light waves from an object moving away from an observer are stretched, causing a shift towards longer wavelengths. This phenomenon is consistent with the Doppler effect, where the wavelength of light appears to stretch as the source moves away. The redshift of light from distant stars indicates that galaxies are moving away from us and from each other, supporting the idea that the universe is expanding.
2. Existence of cosmic background radiation: The discovery of cosmic background radiation further supports the theory of the expanding universe. Cosmic background radiation is a faint, uniform microwave radiation that permeates the entire universe. It is believed to be residual radiation from the Big Bang, the initial event that is thought to have initiated the expansion of the universe. The presence of cosmic background radiation provides strong evidence for the hot, dense early stages of the universe and its subsequent expansion.
Based on the information provided in the diagram, it is not possible to determine the identity or nature of the celestial objects labeled X. The diagram only represents the expansion of the universe over time and does not provide specific details about individual celestial objects.
For more such information on: radiation
https://brainly.com/question/2375220
#SPJ8
Although the North Pole is tilted toward the Sun in the summer, its average temperature during that time is 0°C, that is very cold! How can you explain this?
Answers
North America is tilted toward the Sun during the summer months, this explains the reason that average summer temperatures are higher than winter temperatures in North America.
Latitude, height, distance from the sea, and ocean currents are the four unavoidable factors that affect temperature. Latitude is the most crucial aspect since the amount of solar radiation varies according to latitude.
The Earth's average yearly temperature, which displays a generally progressive temperature gradient from the equatorial to the polar regions. The most solar radiation is reflected off of the Equator.
Temperatures of the air and water are principally influenced by how much sunlight is received by the Earth's surface and how much heat is reflected back into space by greenhouse gases.
For more details regarding factors affecting temperature, visit:
brainly.com/question/29646860
#SPJ1
Skeleton features cladogram
Answers
The main skeletal features used to construct a cladogram include the presence or absence of specific bones/structures, bone shape/structure, dental characteristics, skeletal adaptations, and skull morphology.
Cladograms are phylogenetic trees that illustrate the evolutionary relationships between different organisms. When constructing a cladogram, various skeletal features can be used as characters to determine the branching patterns and common ancestry among organisms. Here are some main skeletal features used in cladistic analysis:
Presence or absence of specific bones or structures: The presence or absence of certain skeletal elements, such as wings or limbs, can provide insights into evolutionary relationships.
Bone shape and structure: Comparing the shapes, sizes, and structures of bones can help identify shared characteristics and infer common ancestry.
Dental characteristics: The structure and arrangement of teeth, including the type and number of teeth, can provide information about evolutionary relationships and dietary adaptations.
Skeletal adaptations: Features like the presence of a notochord, presence of a bony skeleton, or modifications for specialized locomotion (e.g., wings, fins, limbs) can be used to infer evolutionary relationships.
Skull morphology: Examination of the skull, including the shape of the cranium, presence and structure of specific cranial bones, and jaw structure, can help determine evolutionary relationships and functional adaptations.
By analyzing these skeletal features and comparing them across different organisms, cladistic analysis aims to identify shared derived characteristics (synapomorphies) that indicate common ancestry and to construct a branching pattern that represents the evolutionary relationships between the organisms being studied.
The question was incomplete. find the full content below:
What are the main skeletal features that can be used to construct a cladogram?
Know more about Skull morphology here:
https://brainly.com/question/1463216
#SPJ8
Which organism fix nitrogen in the soil ?
Answers
Answer:
Diazotrophs
Explanation:
The nitrogen-fixing bacteria and other micro organisms that fix nitrogen are collectively called 'Diazotrophs'. There are many strains of these bacteria in soil, which perform this function. They are important agents in the 'Nitrogen Cycle'.
There are two main groups of organisms that fix nitrogen in the soil: diazotrophs and cyanobacteria.
What are these organisms?Diazotrophics are bacteria that can convert atmospheric nitrogen into ammonia, which is a form of nitrogen that plants can use. Some examples of diazotrophs include Rhizobium, which is found in the root nodules of legumes, and Azotobacter, which is a free-living bacterium.
Cyanobacteria are photosynthetic bacteria that can also fix nitrogen. They are found in aquatic and terrestrial environments, and they can play an important role in the nitrogen cycle.
Find out more on nitrogen here: https://brainly.com/question/1380063
#SPJ6
Which of the following was proposed by Charles Darwin?
A.endosymbiosis hypothesis
B.biogenesis
C.natural selection
D.experimentation
Answers
Answer:
Charles Darwin proposed the theory of natural selection.
what is the difference between cork formation and gum formation in the plants as an immune mechanism
Answers
Answer:
Cork formation is a type of secondary growth that occurs in the stems and roots of woody plants. Gum formation, on the other hand, is a type of defense mechanism that occurs in response to injury or infection.
Explanation:
What comes from the food you eat that can be important to the proper function of
enzymes?
Answers
Answer:
What is the role of enzymes found in food?
The role of digestive enzymes is to break down food-derived fats, carbohydrates, and proteins into smaller substances that our bodies can use. Although the body produces its own enzymes, it may not be enough to completely break down cooked or processed foods.
Explanation:
Which of the following is an environmental cost of commercial agriculture? A. Overconsumption of water B. Efficient milk production C. Crop rotation D. Primary food crops
Answers
Answer: A. overconsumption of water
Explanation:
Every other answer is a a positive
For each of the following genotypes, give all possible
gametes. Explain your reasoning for each.
a) WW
b) Tt
c) ee
Answers
Answer:
c
Explanation:
ee means the genotypes for each of the gametes
ee is the genotypes, give all possible gametes.
What is genotypes?The type of variant present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it.
For illustration, BB, Bb, and bb could be used to denote a certain gene variant. The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype. In a single experiment, the genotypes at millions of sites in a genome can be determined using DNA sequencing and other techniques.
The genotype is simply the specific information encoded at a given position in the genome. Like the sentence example, there can be misspellings.
Therefore, ee is the genotypes, give all possible gametes.
To learn more about genotype, refer to the link:
https://brainly.com/question/20730322
#SPJ2
What do plants do when they grow towards sunlight?
get more light
die faster
live longer
get smaller
Help ASAP
Answers
Answer:
get more light
Explanation:
Answer:
get more light
Explanation:
plants grow towrd the light to get more light. the light the plant gather is transferred (with other ingredients) into glucose (Suger)
What new knowledge was gained from Frederick Griffiths work with pneumococci bacteria
Answers
Answer:The new knowledge gained from Frederick Griffith's work with pneumococci bacteria is that bacteria contain a physical substance that can change the structure of other bacteria. Therefore, option 3 is the correct answer.
Explanation:
Which of the following factors made it more likely that similar individuals would mate with each other?
A. Selectivity in choosing mates.
B. The availability of smaller seeds.
C. Geographic barriers separating subpopulations,
D. Long term weather patterns.
Answers
Answer:
Selectivity in choosing a mates
Geographic barriers separating subpopulations.
Explanation:
Selectivity in choosing a mates is a factor in which individuals can mate with each other. Some individuals tend to choose a sexual mates that posses some traits or characteristics that attract them to each other and because of the observable character, similar individuals attracted to each other mates.
Geographic barriers separating subpopulations is another factor that make similar organism or individuals to mates.
When there is geographic separations or demarcation between individuals in a species and they are separated from other subpopulations .. They tend to mate with each other in the same geographic location and cannot mate with other subpopulations that is outside their own geographic location. These is common in animals.
Black-footed ferrets are native to the Great Plains. They spend most of their
time underground in prairie dog burrows. Which factor would increase an
area's carrying capacity for black-footed ferrets?
A. Increased competition for space
B. Increased number of diseases
C. Increased number of predators
D. Increased availability of food
Answers
Answer:
D. Increased availability of food
Explanation:
Trust
The factor that would increase an area's carrying capacity for black-footed ferrets is the increased availability of food. The correct option is D.
What is carrying capacity?Carrying capacity is defined as the average population size of a species in a given habitat.
Environmental factors such as adequate food, shelter, water, and mates limit the species population size. If these requirements are not met, the population will decline until the resources recover.
If there is more food available in an area, more black-footed ferrets can survive and reproduce, increasing the species' carrying capacity.
Increased competition for space, more diseases, and more predators would all reduce the carrying capacity of black-footed ferrets by reducing the number of individuals that could survive and reproduce in the area.
Thus, the correct option is D.
For more details regarding carrying capacity, visit:
https://brainly.com/question/30880725
#SPJ7