Answer:
logical operator is a symbol or word used to connect two or more expressions such that the value of the compound expression produced depends only on that of the original expressions and on the meaning of the operator.
Answer:
A logical operator is a symbol or word used to connect two or more expressions such that the value of the compound expression produced depends only on that of the original expressions and on the meaning of the operator. Common logical operators include AND, OR, and NOT.
Explanation:
what is the theory of plate tectonics?
Answer: The theory states that the earth's crust is divided into massive slabs known as tectonic plates.
Explanation:
These plates move on the mantle which is a layer made of magma, which consists of semisolid rocks.The heat from earth's core causes convection currents much like in a beaker full of water.But, here the force developed by the magma is so great that it slowly moves the plates like boats on sea over millions of years.
Which best describes the first step in genetic engineering? A. Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host. B. All the DNA from a desired organism is isolated to form recombinant DNA for use in a host. C. Different sections of DNA from a desired organism are inserted into a host so that beneficial traits will be expressed. D. One strand of DNA is isolated and inserted into a host so recombinant DNA can be formed.
Answer:
A. Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host.
Explanation:
Genetic engineering, also known as genetic modification, is a technique that involves the manipulation of an organism's genome using biotechnology procedures. The purpose of genetic engineering is to create an organism with desirable traits.
Genetic engineering involves series of steps, however, the very first step is that of DNA EXTRACTION. The fragments of DNA that have desired genes are isolated from the involved organism. The extracted DNA called the recombinant DNA, which is inserted into the host genome.
Answer:
A Fragments of DNA that have desired genes are isolated to form ......
Explanation:
I just took the test
Which of the following are examples of how an animal can help a plant reproduce
Answer:
I don't see any answers to choose from, but when an animal eats a plant, travels, and then *poops* it out, the seeds are usually in the scat, thus spreading the plant and allowing it to reproduce.
Explanation:
True or false - DNA and RNA store heredity to make proteins?
in my own opinion I think it's false ..,
When pressure is applied to a fluid in a closed container,
What do you know about bacteria?
(Multiple choice question)
They are microscopic cells
They are like viruses
They are infectious particles
Answer:
They are microscopic cells
Explanation:
Answer: B
Explanation: they are like viruses . Because virus has bacteria
Fertilization is when a sperm and egg fuse together to make a zygote. Once formed, the zygote will undergo which type of cell division to eventually grow into a fetus?
mitosis
meiosis II
both meiosis I and II
meiosis I
Answer:
both meiosis I and II if i'm wrong remove my answer
Explanation:
What is the geosphere?
Answer:
the geosphere is the earth itself the rocks the minerals and landforms of the surface and interior.
Answer:
The geosphere is all Earth’s solid like soil . Geo a Greek word which means earth.
Explanation:
What two variables must you know in order to
calculate the average speed of a moving object?
А
direction and time traveled
B
total time and total distance
C
slowest speed and fastest speed
D
fastest speed and total distance
B. total time and total distance
A solution outside of a cell that contains an equal water concentration with the cytoplasm of a cell is called:
Answer:
isotonicity
Explanation:
If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
A mother is heterozygous for Type B blood and a father has type O blood, what is the probability of being a carrier of Type O blood?
A. 50%
B. 100%
C. 0%
D. 25%
E. 75%
Answer: 50%
Explanation:
(I Tried Putting My Explanation Its Not Working Bc Its Inappropriate)
But If The Mothers Blood Type Is 0 and the fathers blood type is A then it would be 50% Genotype for the child
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PLEASE PLEASE HELP ASAP!!!!! Plants, animals, yeast, and bacteria all share very similar cell-signaling processes. Which of the following does this suggest about the evolution of cell communication in organisms?
Answer:
mm A
Explanation:
Answer:
The answer is A
Explanation:
Which describes laptops, cell phones, and video game systems that people use every day? obsolete technologies current technologies emerging technologies coexisting technologies
Many shark species have experienced a great deal of decline in population sizes due to a variety of factors. In the Bahamas, sharks are plentiful, but still experience a decline as populations reach their carrying capacity. Which of the following factors does not affect the carrying capacity of all shark species?
Answer:
You didnt list the factors? comment the factors and ill come back to answer
A species of plant produces purple or white flowers. The results of crossing a purple and a white flower and two white flowers are shown in the diagram. Which of the following terms best describes the purple flowers?
A. recessive
B. Dominant
C. hybrid
D. codominant
Answer:
Recessive
Explanation:
what are two changes that make our daily lives to have a positive impact on the environment?
How does the idea of atoms
explain the principle of conservation of
matter?
Answer:
Both the initial and final substances are composed of atoms because all matter is composed of atoms.
Which of these does organic farming use?
A.
effective pesticides
B.
genetically modified seeds
C.
hormones
D.
fertilizers
E.
green manure
Cytosine makes up 24% of the nucleotides in a sample of DNA from an organism.
What percent of the nucleotides in this sample will be thymine
A) 48%
B) 26%
C) 24%
D) 13%
Answer:
26%
Explanation:
if cytosine makes up 24%, then guanine also makes up 24%.
add these to get 48%.
subtract that from 100% to get a remaining 52%
then split the 52% between adenine and thymine to tell you that 26% is thymine
The percent of the nucleotides in this sample will be thymine should be considered is the 26%.
Calculation of the percentage:Since
Cytosine makes up 24% of the nucleotides
So here the guanine should be 24%
Now if we add together should be
= 24% + 24%
= 48%
Now the remaining should be
= 100 - 48%
= 52%
Now here we half the 52% so it comes 26%
Therefore, the option b is correct.
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Should I pull a power move?
Answer:b
Explanation: dont know why
Answer:
like the move/stunt? if it is ill tell you anyways :))
Explanation:
I mean yeah you could try but dont get hurt go for it!!! :)))
A dominant allele is often covered up or masked by the recessive allele. True or false?
Answer:
Explanation:In a heterozygote, the allele which masks the other is referred to as dominant, while the allele that is masked is referred to as recessive.
Answer:
If the alleles are different, the dominant allele will be expressed, while the effect of the other allele, called recessive, is masked. In the case of a recessive genetic disorder, an individual must inherit two copies of the mutated allele in order for the disease to be present
what happens when light hits a mirror
Answer:
pretty sure it reflects the light back
Explanation:
Which of the following is not true of gravitational force? ( pls help me)
A noncontact
B depend on mass
C depend on speed
D depend on distance
Answer:
C) Depend on speed.
Explanation:
What kind of adaptations could have given homosapiens an evolutionary advantage over neanderthals and other species of humans?
Answer:
humans had more developed 'social' brains than Neanderthals, which enabled us to colonize new habitats and adapt to climate fluctuations
Explanation:
A more developed brain is considered to be an adaptive advantage that enabled early humans to leave Africa and colonize new habitats. Modern humans are able to adjust to new environments, situations, and socialize with other humans because the brain is a social organ. Although Neanderthals were able to occupy an important area of Europe, H. sapiens could colonize faraway lands, migrating into tropical forests, deserts, and glacial lands (colder areas than those colonized by Neanderthals). These early humans formed social groups which enabled them to find food more easily, thus greatly increasing their chances for survival.
Which of the following is produced during photosynthesis
Explain why the world population is growing, even as the growth rate is decreasing.
First of all, you must understand that the average life span of a person is from 70 yrs. throughout the world. See (Picture 1). Life expectancy is measured by the average of each individual who have lived inside a nation or area. It then takes into account how long they live. Was there a ongoing war affecting that area? Was there pestilence, famine, or any natural disasters? These are some examples that would affect the population of a certain demographic, and can lead to people living longer or shorter, which in turn can fluctuate the total amount in the world population. In the case of a longevity of the race of humanity, there are many things to look at.
Firstly, the ever expanding usage of the ground to furbish the energy needed for the sustainability of life. One of the many necessities that a person must meet is having access to a stable source of food, as well as water. The first part comes in the form of gathering, or finding edible food while staying away from those that are harmful. This typically came in a trial-and-error format, and gave those who survived a broader knowledge of what can be eaten, and what cannot be. The second part is the advancement of tools such as spears using flint rock, or forging of sharp wooden staves that can be used to hunt game or fish. Furbishing of meat into the diet led to people generally having more muscle strength, as well as as well as retaining muscle mass, building stronger bones and absorbing iron much more better, which is essential in blood production. Whenever there is a large and stable source of food, as well as later having a globalization trading effort, the world population would grow. Stability almost always lead to higher population growth.
Secondly, the practition of medicine and advancement in the medical field. Medicine plays an important role in not only stabilizing the homeostasis of the body, but also to prescribe a positive role in preparing the human body to develop anti-bodies to counter any new diseases (to the individual) by giving doses of weakened traits. The usage of medicine and other ways in keeping a person healthy (such as sewage systems to drain away wastes full of germs), and the advancement of medicine to negate new diseases have allowed people to survive any incidents and live longer.
Thirdly, the stability of the world (as in wars). Having smaller wars, or little to no war can affect the stability of an economic, political, and social climate of a country. The more balanced and secure it is, the more a group is willing to have children in most cases. However, that is not too say that this means that the growth rate is increasing. Stability also brings, as studies would typically show, a typical mindset for people to make more money in their early adulthood in which case to save for the future. This means putting aside finding a family, or even having kids. Marrying later typically means that the usual ages of childbearing and rearing are on it's waning stages or have already passed, in which it means that the growth is slacking. However, remember the point that I brought up that people are living longer now. This means that the world population is expanding, but not because of new population, but because of the longevity of the old. (See Graph 2).
Finally, you must understand that growth rate as a whole is not as low as expected. The growth rate can be different from country to country. Countries that typically lean towards 2nd or 3rd world countries typically still have a larger growth rate. These generally account for the large amount of world population, even though as a general rule the growth rate is decreasing in most developed countries. Take a look at the graphs shown below (picture 3 & 4). The 3rd one shows the GDP as comparable to each individual countries, which in turn typically means if the country falls under which world category.
In the end, the World Population is made up of many different individual countries, in which each experience it's own growths or set backs in population sizes. One must also take into account the movement of people through countries (typically from developing to developed) in sustaining of other places. Also, one must take into account that not only stability, but also necessity would influence a persons decision to have children, which in turn would affect the growth rate. Advancement in providing the basic necessities and health services to a person would raise the longevity, which means that while not only the population is increasing, but that the population is leaning more towards the older side then younger. Finally, the world population has a peak in limit, and that once the limit is hit, the growth rate and roof would cave the population and lower it down, typically through diseases, famine, or other natural disasters.
How fast can you answer correct..? How fast can i give you brainliest. Explain Your answer:D/ HELP
The Himalayan rabbit's habitat has cold, snowy winters and mild summers. The body is
typically covered in white fur except for the nose, feet, tail, and ears, which are covered in
black fur
Himalayan Rabbit
A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice
pack over the shaved area. The shaved area grew black fur.
Which of these best explains why the hair that grew back where the ice pack was placed was
black and not white?
F The genes for black hair were activated by specific temperatures.
G The white hair mutated to black hair as the rabbit's body temperature decreased.
H The coat color changed from white to black with the age of the rabbit.
3 White hair only grows during certain times of the year.
Answer:
F. The genes for black hair were activated by specific temperatures
Explanation:
The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that its cold.
Rabbits regulate their body temperature by using their ears. A fever or a dip in body temperature could be indicated by extremely chilly or hot ears. Thus, option F is correct.
What are the adaptation rabbits have in Himalayan?In general, rabbits thrive in cooler climates. In the fall, rabbits stop shedding their fur and develop a thick coat of fur that keeps them warm in the winter. Low temperatures of 32 degrees don't really bother them.
Strong back legs offer rabbits the speed they need to run away from predators. Their feet have fur on the bottoms for warmth and strong claws for traction.
The white hair only grows in cold temperatures. Just because they put an ice pack on the rabbit does not mean that it's cold.
Therefore, The genes for black hair were activated by specific temperatures
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Engineers are designing a bridge that will better withstand earthquake forces. What is the process called when engineers use a computer to see what happens to their design during an earthquake?
earthquakes from occurring but we can significantly mitigate their effects by identifying hazards, building safer structures, and providing education on earthquake safety. By preparing for natural earthquakes we can also reduce the risk from human induced earthquakes
From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant develops. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop
Answer:
Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells
Explanation:
Each cell type contains only the active parts of the DNA needed for that cell type Each cell type has only one chromosome containing the DNA needed for that cell type. Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells Each cell has multiple copies of DNA that are affected in different ways by the environment to change the function of the cell at regular intervals.The correct answer would be that each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells .
Cell differentiation occurs when a specific segment of the DNA of a cell is expressed during gene regulation and control. The segment of DNA expressed would be dependent on the function the cell is meant to perform. Thus, if cell A is meant to perform an excretory role and cell B is meant to perform a digestive role, even though cells A and B contain the same DNA, different segments of their DNAs would be expressed so that each cell becomes adapted to its role.