Option A is correct because water movement in and out is balanced. Because osmosis occurs in both directions equally, the cell size will be the same.
What is osmosis?Osmosis is the naturally occurring transfer of solvent molecules from a lower concentration solution to a higher concentration solution over a semi-permeable membrane. Examples of osmosis in everyday life include: becoming thirsty after eating salty food. Kidney dialysis in the excretory system. Resins and other seeds swell when they are submerged in water.
The following is the definition of osmosis that you will find in most textbooks: Osmosis is the movement of water molecules through a cell's partially permeable membrane from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules.
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If 30% of the nucleotides in a single-stranded RNA molecule are adenine, then what percent are expected to be
thymine?
(A) 0%
(B) 20%
(C) 30%
(D) 70%
If 30% of the nucleotides in a single-stranded RNA molecule are adenine, then what percent are expected to be thymine (C) 30%
Why is adenine present in RNA?Adenine is a basic nucleotide that combines with uracil in RNA and thymine in DNA to produce nucleotides. Adenine; Adenine has a number of roles in biochemistry, including supporting cellular respiration through the production of ATP, NAD, and FAD. Additionally, DNA and RNA's chemical components are used in the creation of proteins.
One of the two purine nucleobases—the other being guanine—used to create the nucleotides of the nucleic acids is adenine. Adenine and thymine form two hydrogen bonds in DNA to help stabilise the nucleic acid structures. Adenine interacts to uracil in the RNA that is needed to create proteins.
Carbon, hydrogen, and nitrogen are the elements that make up the nitrogenous base adenine.
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How did the building of the Dismal Swamp Canal impact North Carolina?
Responses
It allowed people to avoid muddy roads on the way to Fayetteville.
It sped up the travel of goods from Eastern North Carolina to Virginia.
It made Wilmington an important port and center of trade.
It led to business growth in the Piedmont.
The building of the Dismal Swamp Canal impacted North Carolina because it speed up the travel of goods from Eastern North Carolina to Virginia.
What was the significance of the Dismal Swamp Canal?The Dismal Swamp Canal was dug by hired enslaved labor that is opened for navigation in 1805 after completing the work under unfavorable conditions. The Dismal Swamp Canal length is 22 miles which provide trade between Virginia and North Carolina. In 1929, the Government of the United States of America bought the Dismal Swamp Canal and started to improve its structure and capacity. This canal is also called the oldest operating waterway in the country. It is also part of the Atlantic Intracoastal Waterway. So we can say that this Dismal Swamp Canal increases the speed of trade activities between the two regions.
So we can conclude that option B is the right answer.
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why can’t a single cell constitute a system?
Answer:
Solution
Type of organisms based on cell number:
Based on cell numbers, organisms are grouped under two categories:
Unicellular organisms - organisms having a single cell.
Multicellular organisms - organisms having more than one cell or group of cells.
Unicellular organisms:
In several organisms, a single cell is capable of performing all the cell functions that are vital for its survival.
In such organisms, no division of labour is present.
There is no tissue or organ formation.
Examples - Amoeba, yeast, Chlamydomonas, etc.
Why were the oldest cultivated seeds ever found so well preserved?
The oldest cultivated seeds ever found were so well preserved so as to ensure that they are viable even after a long period of time.
What is Viability?This is referred to as the measure of the ability of the seed to remain alive and being able to reproduce in other to form a new offspring through various processes.
Seeds are grown or present under various conditions which could be harsh such as during a period of extreme hot or cold climatic conditions and there is the importance of it having to remain well preserved.
This is because it ensures that the seed is still viable and able to grown into a new plant. This is done through structures which prevents it from drying out or being influenced by other factors thereby making it the correct choice.
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Which of the following is a tendon and not a ligament
Muscles and bones are connected by fibrous connective tissue called tendons. Bones are joined together by fibrous connective tissue called ligaments.
Tendon And LigamentA tendon helps a bone or other structure move. A ligament is a fibrous connective tissue that connects bones and often acts to stabilize and hold tissues together. While a tendon ties a muscle to a bone, acting as an anchor for the muscle, a ligament joins two bones. A ligament keeps the shin and foot bones (tibia and fibula with the talus) together at the ankle joint, while the Achilles tendon, for instance, connects the calf muscles to the calcaneus (heel bone). Due to the fact that tendons receive more blood than ligaments, injuries to them typically heal more quickly. Both ligament tears and tendon rips are significant disorders that, if untreated, can result in excruciating pain and permanent damage.To learn more about Tendon And Ligament refer :
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When choosing between methods of classical conditioning, why is systematic desensitization typically preferred over flooding?
Question 2 options:
Flooding gradually exposes a person to a feared object.
Systematic desensitization is a more intense experience.
Flooding is less intense than systematic desensitization.
Systematic desensitization gradually exposes a person to a feared object.
Which of the following refers to a classical conditioning method that exposes an individual to a harmless stimulus until fear responses to that stimulus are extinguished? A. Flooding B. Systematic desensitization C. Counterconditioning D. Spontaneous recovery
Flooding refers to a classical conditioning method that exposes an individual to a harmless stimulus until fear responses to that stimulus are extinguished.
Answer:
Systematic desensitization gradually exposes a person to a feared object.
Explanation:
Which statement us true about a line and a point?
Answer:
A point has no dimension and a line has one dimension.
Explanation:
Which color of eyes is dominant? How do you know this?What does this mean in terms of inheritance?
The exercise tells us that 20 babies have been born in a maternity ward, and 10 of them have brown eyes, while the other 10, have blue eyes. The questions below are related to the dominant eye color, how we know it, and what it means in terms of inheritance. To this, we can answer that the dominant eye color is the brown one and that we know this due to the dominant alleles are represented with a capital letter, in this case, B, being b (for blue color) the recessive allele. In terms of inheritance, this means that if a parent with brown eyes (being BB, or Bb their genotype, but if we have that they have babies being they blue-eyed, then the genotype would be Bb), has babies with a parent that have blue eyes (being bb their genotype), the babies would have both phenotypes, as we can see in the following Punnet Square.
{Easy} What role do water masses play in the distribution of global heat? [Penn Foster]
A. They create cyclones as part of the Coriolis effect to spread out water temperatures.
B. They cause different ocean depths, with deeper ocean pockets staying warmer than shallower ocean pockets.
C. They're involved in thermohaline circulation.
D. They make the Atlantic Ocean less salty than the Pacific Ocean.
Answer:
A they create cyclones as a part of the Coriolis effect
Describe at least two positive and two negative relationships humans have with microbes. What are some advantages/disadvantages of each relationship?
The two positive relationships humans have with microbes are;
they provide us with medicinesthey help in the fermentation of foodThe two negative relationships humans have with microbes are;
they make humans sickthey cause spoilage of foodSome advantages of the positive relationships humans have with microbes are;
the medicines obtained from microbes are used in the treatment of diseasesfermentation of food increases the availability and enhances the taste of foodsSome advantages of the negative relationships humans have with microbes are;
they cause deaths and wastage of human resourcesthe spoilage of food reduces the availability of food.What are microbes?Microbes are small living organisms found in our environment that cannot be seen with the unaided eye except with the aid of microscopes.
Some examples of microbes in our environment are:
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It is known that the bioavailability of the drug acetylcholine esterase inhibitor she has been prescribed with is 36%. She takes a tablet that contains 1.5 mg of the active ingredient twice a day. Determine the daily amount (mg) of active ingredient that reaches her systemic circulation. (Show your calculations.)
The daily amount (mg) of active ingredient that reaches her systemic circulation is prescribed with is 36%.
What is circulatory system?A circulatory system has been defined as the system in the body that has been consists of the heart, blood vessels, arteries, veins and blood that all the combined together to the supply blood to all parts of body and takes up waste material from it.
Circulatory system have four major components and these are the heart, veins, arteries, and blood. These are the four components that combined and form cardiovascular system.
Therefore, The daily amount (mg) of active ingredient that reaches her systemic circulation is prescribed with is 36%.
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In rats, coat color exhibits incomplete dominance. Yellow (Y) and white (W) rats are homozygous,while cream (YW) colored rats are heterozygous. If two cream-colored rats mate, what percentageof their offspring will be cream-colored?
The answer would be 50%.
If these two genotypes mate YW x YW the result would be
YY, YW, YW, WW. The percentage of the offspring would be:
YY- yellow 25%
YW- cream 50%
WW- white 25%
what organ systems must be understood in detail by the medical doctors and bioengineers who devopl amputation techniques in preparation fro prothesis? explain why fro each system.
The skeletal system, the circulatory system, the neurological system, the muscular system, and the epithelial system are the ones that are affected by this problem.
What is amputation?Amputation is a surgical process in which a living person's limb is amputated. Additionally, prosthetics have been created throughout history to replace these components. To improve the quality of life for those who have had amputations, medical and bioengineering studies have dug into various elements of the body.
Circulatory system: Veins oxygenate all tissues and organs. To prevent a painful death after an amputation, the veins must be clipped and changed. To avoid dying portions, blood must flow properly.
Bones: without them, the body would be shapeless. Amputations require cutting and adapting bones to support a prosthesis.
Nervous system: All human nerves have stimuli receptors. After an amputation, nerves must be adjusted to prevent pain and discomfort from prostheses.
Muscular system: Muscles and bones allow movement. After an amputation, muscles must be changed to maximize movement and morphology for prosthetics.
Epithelial system: Skin covers the body. Therefore, after an amputation, the patient's skin must be operated on to sculpt a stump to avoid lumps, pain, and other skin issues.
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The axial skeleton includes : I’m correcting my work, please correct me if I’m wrong
The correct option is D. Skull, vertebrae and ribcage. The axial skeleton comprises the central axis of the skeleton, thus the limbs are not inlcuded in it, they belong to the appendicualr skeleton.
What did the patterns Linneaus identified in the “Great Chain of Being” come to be called?
Answer:
Lovejoy (1936) identified three basic intellectual components of the Great Chain of Being, which he called the principles of Plenitude, Continuity, and Gradation.
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Suppose you wanted to discribe an object to some one but you could not name which properties could you include in your description if you could not only share information that you can determine with your senses
In order to describe the object based on physical properties that one can determine with the senses, I will describe the weight, taste, mass, and color of the object.
What are physical properties of a substance?The physical properties of a substance are those properties that can be observed without changing the chemical nature or properties of the substance.
Physical properties can easily be observed with the senses such as taste, sight, sound, texture, or feel.
Some physical properties of a substance include:
massdensityvolumetastecolorodorTherefore, physical properties are determined by the senses.
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Which is NOT abenefit ofbiodiversity? A. climate changeC. clean air and waterB. control of pestsD. control of soil erosion
The correct answer is A. climate change. Climate change is a direct consequence of greenhouse gas release by human activities.
47. A main component of bone is substituted with hydroxyapatite Ca10(PO4)6(OH)2. Choose one of the alternatives that substitutes the hydroxyl ion? (Lec 13)
a. F−
b. CO32−
c. Cl−
d. Mg
The ion that is able to serve as an alternative for the hydroxyl ion is the carbonate ion. Option B
What is the bone?The bone is a structure that could be found in some animals. The main function of the bone is that the bone does provide support for the organism. There are about two hundred and six bones in the human body and most of them does provide support and rigidity to the human body.
The compound hydroxyapatite is found in the bone and it contains the hydroxyl ions, phosphate ions and the calcium ions which is the main ion that have been associated with the rigidity of the bone.
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Which of the following theories can explain why people tend to made adjustments in their beliefs and attitudes to maintain consistency with their experiences and actions?
Question 9 options:
Cognitive expression
Cognitive dissonance
Cognitive adjustment
Cognitive association
The theory that explains why people tend to made adjustments in their beliefs and attitudes to maintain consistency with their experiences and actions is Cognitive dissonance.
What is Cognitive dissonance?Cognitive dissonance theory postulates that an underlying psychological tension is created when an individual's behavior is inconsistent with his or her thoughts and beliefs. The underlying tension then motivates an individual to make an attitude change that would produce consistency between thoughts and behaviors.
Cognitive dissonance theory is very important and needful for understanding the impact of role-playing on attitude change.
What is the theory of cognitive dissonance based on?
Image result for which theory can explain why people tend to make adjustments in their beliefs and attitudes to maintain consistency with their experiences and actions
The theory of Cognitive dissonance was proposed by Leon Festinger and was centered on how people try to reach internal consistency
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Which of the following is a genre?
2
A Mary Shelley
B Science fiction
C Frankenstein
D
Fear of technology
Answer:
Science fiction is a genre
Answer: B. Science Fiction is a genre.
What’s the correct answer answer asap for brainlist
Answer:
Option B) Lowering
Explanation:
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Continental drift. Much more modern day evidence has come to light to support this theory. Early on, Alfred Wegner cited the geological set of continental coast lines; it was noted that the coast lines of south America and west Africa seem to match up, today we have more evidence. Using the graphic in the statements below, elaborate on how the fossils remains of mesosaurus, A freshwater crocodile like reptile that lived between 286 in 258 million years ago, provide support for the theory of continental drift. Which statement does not apply.
I NEED THIS FAST!!! CORRECT AND FIRST ANSWER GETS BRAINLIEST ANSWER!!!!!!
Answer: The correct answer (the statement that does NOT apply) is A. Mesosarurus swam from one continent to the other in breeding pairs.
Explanation:
The remains of Mesosaurus (a freshwater crocodile-like reptile living between 286 and 258 million years ago) have been found in Southern Africa and Eastern South America. Scientists have proven that Mesosaurus was not capable of swimming between the continents, so the presence of their fossils on two continents has proven the theory of continental drift. There is additional evidence that supports continental drift, where the two continents were connected.
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When researching a question using the scientific method, what is the next step after testing your hypothesis?
Question 2 options:
Draw conclusions.
Analyze the results.
Propose ways to duplicate your research.
Pose a question.
Answer:
propose way ...
Explanation:
Where does diffusion in the kidney diffuse from and where does it diffues to?
Answer:
Being Passive in the Kidney. Firstly, small soluable molecules can passively diffuse into the liquid in Bowman's Capsule from the Glomerulus. These molecules are usually molecules of glucose, urea, salts and water and diffuse from the capillaries into the solution of plasma without the use of energy.
Explanation:
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Why are some microbes, including Streptococcus spp., unable to perform aerobic respiration, even in the presence of oxygen? (at least two reasons)
Because due to their evolution in settings with low oxygen levels, some species cannot conduct aerobic respiration in the oxygen-rich environment.
Species- A species is a group of organisms made up of similar individuals that are capable of crossbreeding or gene exchange. The most fundamental unit of classification in biology is the species, which also serves as a taxonomic rank. A genus is the following taxonomic rank in the biological categorization hierarchy.
Aerobic Respiration- All cellular activities are powered by energy produced by aerobic respiration. The processes result in the production of ATP, which is subsequently utilized to power additional life-sustaining processes like growth, repair, & maintenance.
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HELPPPP PLEASE
Place these steps in order to
describe the changes that
occur in the organization of the
chromosome as the cell progresses
into mitosis.
a. The chromosome coils more
and more tightly, forming
supercoiled DNA.
b. Condensed, replicated
chromosomes attach at a
pinched region called the
centromere.
c. DNA is wrapped around histones
at regular intervals, forming
chromatin.
d. Interactions between parts of
histones compact the DNA.
The processes of the alterations in chromosomal organisation that take place as a cell enters mitosis.
The correct order is:
1. Chromatin is created by the regular wrapping of DNA around histones.
2. The DNA is compacted by interactions between histone component components.
3. The DNA becomes supercoiled as the chromosome coils ever-tighter.
4. Chromosomes that have been duplicated and compressed attach at a point known as the centromere.
What transpires to DNA throughout mitosis?
Therefore, during mitosis, cells don't simply randomly split their DNA into two heaps for the two daughter cells. Instead, they divided up their duplicate chromosomes in a methodical order. Prophase, Metaphase, Anaphase, and Telophase are the four basic phases of mitosis.
In what way do chromosomes separate during mitosis?
A mitotic spindle, a specialised structure made of microtubules, is responsible for separating the chromosomes. The cell's cytoplasm divides during this phase. It starts as soon as mitosis is complete.
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8. How many valence electrons do the following
elements have?
a. magnesium
b. antimony (51)
c. chlorine
The valency of an element is the characteristic that governs how many other atoms can combine with its atoms.
a. Magnesium - 2
b. Antimony - 5
c. Chlorine - 1
What is meant by valency?An element's valency is its capacity for combination. The valency of elements in the same group of the periodic table is the same. The valency of an element is related to how many electrons are in the outer shell.
If the number of electrons in the outer shell is four or less, the valency of the atom is equal to that number.
If not, the valency is equal to eight minus the number of outer shell electrons. Calculating the valency is simple once you know how many valence electrons there are.
The valency of an element exists the characteristic that governs how many other atoms can combine with its atoms.
a. Magnesium - 2
b. Antimony - 5
c. Chlorine - 1
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Question 6. A papa bear (Ffbb) with black fur (F) and blue eyes (b) mates with a
female bear (ffBb) that has white fur (f) and brown eyes (B). (show all your work!) (2
pts)
(a) What is the probability that they will have a cub (baby bear) with black fur and brown
eyes?
(b) What is the probability they will have a cub with while fur and blue eyes?
(c) Calculate the phenotypic ratio:
(d) Calculate the genotypic ratio:
(a) The probability that they will have a cub with black fur and brown eyes is 25%
(b) The probability they will have a cub with while fur and blue eyes is 25%
(c) The phenotypic ratio is = 1:1:1:1
(d) The genotypic ratio is= 1:1:1:1
male : Ffbb (black fur, blue eyes)
female : ffBb ( white fur brown eyes)
male gametes : Fb and fb
female gametes : fB and fb
male/
female Fb fb
fB FfBb ffBb
fb Ffbb ffbb
FfBb black fur brown eyes
ffBb white fur brown eyes
Ffbb black fur blue eyes
ffbb white fur blue eyes
What is phenotype?Phenotype is defined as observable characteristics or characteristics of an organism that are the result of the interaction of genes and environmental factors. These characteristics include physical appearance and other characteristics that we perceive.
The phenotype of an organism includes its physiological, biochemical and behavioural characteristics. Unlike genotype, which is inherited from parents, phenotype is influenced by lifestyle and environmental factors. Environmental factors include temperature, nutrition, humidity and the mental health of the body.
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sex determination explain x chromosome and y chromosome
Okay bro, i can explain you :)
Sex determination.
Separate sex determining i.e. male and female.
In sex determination, male and female differs only through sex chromosomes i.e. x and y chromosome. x chromosome for male and y chromosome for female. Autosomes(non - reproductive cells) does not involve in sex determination. Only the sex chromosomes involve in sex determination. Overall, only this chromosomes ( x and y) decides whether the resultant baby is male or female. If it is x chromosome, then it is a female and if y chromosome, then it is a male.
The nerve cells in the human nervous system seldom undergo mitosis. Based on this information,explain why complete recovery from injuries to the nervous system may not occur.
Nerve cells are referred to as amitotic because they lack centriole, which prevents them from undergoing mitosis and dividing to create new cells. Due to the incapacity of nerve cells to repair or regenerate, injuries to the nervous system can permanently harm or cripple a person.
What is a Nervous system?The brain, spinal cord, and a sophisticated nerve network are all parts of the nervous system. The brain and the body are communicated with via this system. All bodily functions are managed by the brain. From the brain, the spinal cord descends via the back.
The nervous system performs the following four primary tasks:
controlling the body's environment internally to maintain "homeostasis" The control of body temperature is one example of this.
reflexes in the spinal cord are programmed. The stretch reflex is one illustration of this.
learning and memory.
movement control that is voluntary.
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