HIV, the virus that causes AIDS, is transferred through body fluids. People once thought that HIV infections were untreatable. Now, many people live relatively long and healthy lives despite being infected with HIV. This is possible because science helped
Answers
Options:
A. develop new medicines.
B. treat inherited diseases.
C. change societal attitudes.
D. formulate new laws.
This is doable because new medications were created with the aid of science. Therefore, choice A is the best one.
Through sexual contact or blood contact, the human immunodeficiency virus, which causes HIV infection, can be contracted. Many people are infected by sharing needles and having unprotected sex-ual contact with HIV/AIDS sufferers.
Describe HIV?
The human immunodeficiency virus, or HIV, preys on the body's immune system. HIV can progress to AIDS if it is not treated (acquired immunodeficiency syndrome).
There is currently no effective treatment available. When someone contracts HIV, they are always contaminated. However, with the correct medical attention, HIV can be controlled. People with HIV can live long, healthy lives and maintain their relationships if they receive effective HIV treatment.
The development of new medications can aid in reducing the effects of HIV/AIDS on people. It cannot be passed to offspring because some firms are already involved and using new treatments.
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Related Questions
When animals are used to study basic biological, physiological, or behavioral processes of humans or animals, the type of research is typically known as:
Biomedical
Fundamental
Product testing
Answers
Answer:
Biomedical research.
Explanation:
Biomedical research studies biological processes to improve an understanding of human or animal health. This type of research usually involves using animals to understand and test the effects of specific drugs, treatments, and procedures on the body. The results of this research can provide insight into how drugs and other medicines work, what causes various diseases, and how best to treat them, as well as help create new treatments and therapies.
which of the following factors would make the evolution of the squirrel population into separate species less likely?
Answers
Evolution of the squirrel population into separate species will be less likely to occur if there are no mutations or random mating occurring in the species.
What is evolution?Evolution refers to the changes that occurs in a species of organisms which produces species that as more adapted to the environment and that are different from the original species of organisms.
In a species of squirrel evolution into species will occur if their is random mating or environmental changes that drive mutation and adaptation.
However, if there is no random mating or mutations occurring in the species, evolution of the squirrel population into separate species will be less likely to occur.
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Where is the inherited information that determines a cell’s function
a. lysosomes
b. mitochondria
c. cytoplasm
d. genes
Answers
The place where the inherited information that determines a cell’s function can be found is the d. genes.
What are genes?Genes are the basic units of heredity in living organisms. They are segments of DNA (deoxyribonucleic acid) that contain instructions for the development, growth, and reproduction of all living things. Genes provide the blueprint for the formation of proteins, which are essential for the proper functioning of cells and the entire organism.
Genes are located on chromosomes, which are thread-like structures found in the nucleus of a cell. Humans have 23 pairs of chromosomes, and each chromosome contains many genes. The exact number of genes in humans is still being researched, but it is estimated to be between 20,000 and 25,000.
Therefore, option D is correct.
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Scientists predict that the human population will continue to increase. Which
two events are likely to occur as a result?
A. The amount of water released into streams and rivers will
increase.
B. The amount of natural space will decrease as suburban areas
increase.
C. More people will move to the cities, increasing the amount of
natural space.
D. Air pollution will increase due to increased use of fossil fuels.
Answers
Answer:
Air pollution will increase due to increased use of fossil fuels and the amount of natural space will decrease as suburban areas increase.
Why does Darwin's Theory of Natural selection disprove Lamarck's Theory of inheritance of Acquired Characteristics? Answer in a short and clear answer
Answers
Lamarck's theory of Inheritance of Acquired Characteristics proposed that an organism experiences modification that can be transmitted to its offspring. However, Darwin's Theory of Natural selection disproved the Lamarckian theory. Many biologists have tested this theory (Lamarckian theory) and the result is, more evidence is being demonstrated that the traits and behavior of organisms were the results of natural selection; hence, these changes are mainly controlled by genes.
what elements is rarley found in organic molecules?
Answers
Answer:
Carbon element is rarely found in organic molecules..
Pretend that the stomatal density is equal across a leaf that is 20cm^2 in size. If you count 46 stomata in a fov that is 2,009,600μm^2, how many stomata would be on the entire leaf?.
Answers
The number of stomata on entire leaf is 45780 stomata
How many stomata would be on the entire leaf?Since the stomatal density is equal across a leaf that is 20cm² in size. If you count 46 stomata in a fov that is 2,009,600μm².
Since the stomatal density is equal across the leaf, we have that
number of stomata on leaf/area of leaf = number of stomata in fov/area of fov
Given that
area of leaf = 20 cm² = 20 × 10⁸ μm², number of stomata in fov = 46 and area of fov = 2,009,600μm²So, the number of stomata on the leaf is given by
number of stomata on leaf = number of stomata in fov/area of fov × area of leaf
Substituting the values of the variables inbto the equation, we have
number of stomata on leaf = number of stomata in fov/area of fov × area of leaf
number of stomata on leaf = 46/2,009,600μm² × 20 × 10⁸ μm²
= 920/2,009,600μm² × 10⁸ μm²
= 0.000457803 × 10⁸ stomata
= 45780.3 stomata
≅ 45780 stomata
So, the number of stomata on entire leaf is 45780 stomata
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the egg of a wasanabina beetle has 5 chromosomes. how many chromosomes are in a somatic cell of a wasanabina beetle?
Answers
There are 23 pairs of chromosomes in somatic cells; one member of every pair is paternal (from the daddy) and one maternal (from the mom). There are 22 matched pairs of autosomal chromosomes, plus one pair of intercourse chromosomes.
Turner syndrome (also known as monosomy X) is a condition because of monosomy. ladies with Turner syndrome typically have the best replica of the X chromosome in every cell, for a total of forty-five chromosomes per cellular. not often, some cells end up with whole extra units of chromosomes.
Definitions of the somatic chromosome. any chromosome that isn't a sex chromosome; appears in pairs in body cells however as single chromosomes in spermatozoa. synonyms: autosome. form of: chromosome. a threadlike strand of DNA within the mobile nucleus that incorporates the genes in a linear order.
Inside the human genome lie about 20,000 genes that encode proteins, the molecules that sincerely construct human cells and our bodies, plus many other DNA factors that control while, in which, and what sort of every gene is expressed (Ezkurdia et al., 2014).
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Blood is a connective tissue composed of red blood cells, white blood cells, and blood platelets. Why is it that we can see blood cells only with a microscope? Question 21 options: The cells form clumps.
The cells keep moving about.
The cells have different shapes.
The cells are very small in size.
Answers
The cells are very small in size.
That's what I would say.
In peas, the trait of plant height is determined by a dominant tall allele and a recessive dwarf allele. A true-breeding tall plant is crossed to a true-breeding dwarf plant. What do you expect to see in the offspring of this mating?
Answers
Answer:
Here is the answer...hope it helps:)
During splicing, which molecular component of the spliceosome catalyzes the excision reaction?
A. DNA
B. RNA
C. Protein
D. Lipid
E. Carbohydrate
Answers
The elimination reaction is triggered by the RNA molecule component of a spliceosome during splicing.
What is RNA and why is it important?Most biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule. It plays a major role in the production of proteins by acting as a messenger to DNA, which in turn carries the genetic instructions necessary for the growth and maintenance of life.
What is difference between RNA and DNA?The double molecule with a lengthy chain of nucleotides is called DNA. The single-stranded molecule called RNA has a shorter nucleotide chain than other molecules. DNA is self-replicating; it reproduces itself. RNA cannot duplicate itself.
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What happens if a horse gains or lose a chromosome? Explain why mutations and chromosomal changes occur. ANSWER ASAP <3
Answers
Answer: Gaining or losing a chromosome will result in major genetic changes for that horse, as either it will be missing important DNA or will have too much DNA. Either can cause mutations to occur in the animal's genome. Chromosomal changes are caused by an error during either meiotic or mitotic cell division. An error could be that a cell has too much copies of a chromosome, or not enough, which causes the mutations mentioned above. Hope this helps some, I know it's not a super meaty answer.
Explanation:
can anybody help me with this?
Answers
Answer:
presence of sugar means that the outside of the fruits is less dilute (more concentrated in sugar than water) than the inside of the fruits
in osmosis (diffusion of water molecules), water molecules have a net movement from a more dilute substance to a less dilute substance
sugar is the less dilute substance, so water is drawn out of the fruits and mixes with the sugar around them
the sugar dissolves in water, creating a sugar solution
this results in fruits with less water inside them, and surrounded by sugar solution
Hope this helps :)))
Answer:
the grass hopper lives on land the fish lives in water.
both can see
Explanation:
How can a wave that is so powerful and tall on land be
unnoticeable at sea?
Answers
because it is futher away from were you are
One strand of DNA has the following sequence in the 5' to 3' direction:
5' AGGCTAGTTACG 3'
Which of the following would be the correct sequence of the complementary strand.
Group of answer choices
5' GCATTGATCGGA 3'
5' CGTAACTAGCCT 3'
5' AGGCTAGTTACG 3'
5' TCCGATCAATGC 3'
Answers
The correct sequence of the complementary strand to the given DNA sequence is 5' CGTAACTAGCCT 3'.
To find the complementary strand, we need to pair each nucleotide with its complementary base. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Therefore, the complementary sequence for the given strand 5' AGGCTAGTTACG 3' would be 5' CGTAACTAGCCT 3'. Each base in the original strand is matched with its complementary base in the complementary strand.
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Can someone help me with number 39 this is late and i need to turn it in. If youre answer is right i will brainliest.
Answers
Answer:
I think its d I'm not sire sorry if I do t help you
The roots allow for plants to bring in carbon dioxide and release oxygen.
True
False
Answers
Answer:
true 100 percent
Explanation:
In selecting recombinant bacteria, cells are chosen that are resistant to a specific antibiotic. How are the bacteria made resistant?.
Answers
The antibiotic resistance gene is encoded on the donor insert.
Some plants that have undergone genetic modification have genes that render them resistant to specific drugs. In order to distinguish GM plants and cells from non-GM ones, scientists frequently introduce these resistance genes during genetic modification.
Once a bacteria has acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.
F In Human-Associated Commensal Escherichia coli, Plasmids Are the Main Carriers of Genes Associated with Antibiotic Resistance.
Antimicrobial resistance mechanisms can be divided into four primary groups: (1) decreasing medication uptake; (2) altering drug targets; (3) rendering drugs inactive; and (4) active drug efflux.
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why do we classify lionfish populations near the eastern united states as an invasive species? what suggests that these new populations are not an expansion of the lionfish’s natural range? view available hint(s)for part a why do we classify lionfish populations near the eastern united states as an invasive species? what suggests that these new populations are not an expansion of the lionfish’s natural range? lionfish eat only a few specific types of algae that live in isolated regions of the pacific. if lionfish spread much beyond their native pacific home, they would have nothing to eat. lionfish are not good swimmers and have no other mechanisms to spread their populations over great distances. lionfish are native to cold waters near the tip of south america. they could not survive in the warmer waters between their native areas and the colder waters of the east coast of the united states. so, it is very unlikely that these south american populations naturally spread north. lionfish are native to the tropical pacific. there are no natural water routes of warm water between the pacific and atlantic oceans. part b based upon what we are learning about the lionfish diet, what is most likely going to happen to caribbean coral reefs invaded by lionfish? view available hint(s)for part b based upon what we are learning about the lionfish diet, what is most likely going to happen to caribbean coral reefs invaded by lionfish? lionfish diets are specific to just a few species of clams. these clams may go extinct in the coral reefs where lionfish have invaded. as lionfish stir up the bottom sediments searching for food, the water will be increasingly cloudy. cloudy water will hurt the growth of algae and corals growing in the reef. the alga populations growing on and near the reef will be greatly reduced, increasing the growth of corals. there will be fewer algae eating fish. more algae will grow over and damage corals. part c what characteristics of lionfish contribute to their ability to spread and become established i
Answers
There are no natural water routes of warm water between the Pacific and Atlantic oceans is the classify lionfish populations near the eastern united states as an invasive species.
Lionfish have developed as an invasive species due to a number of traits: Due to their poisonous spines, lionfish have few native predators in their natural habitat, and the Atlantic and Caribbean are devoid of any native predators.According to experts, the Atlantic Ocean has been receiving unwanted lionfish from domestic aquariums for up to 25 years. Lionfish have extremely few predators because they are not endemic to Atlantic seas.The biggest issue with lionfish is its wide appetite, which has had a significant impact on the local environment despite the fact that they have easily adapted into Atlantic waters. Because they heavily prey on local species and compete with the native predators for food, lionfish harm the health of coral reefs.To learn more about Lionfish.
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Identify A child jumps on a trampoline. The
trampoline bounces her up. Why don't the
forces cancel each other?
Answers
Answer:
Because the fabric of the trampoline absorbs the energy and pushes back with twice the force because of its elasticity. Thus letting the child fly through the air, only to realize, she must come back down.
Explanation:
Answer:
Becuase of the elasticity of the trampoline
Explanation:
Match each description to the level of organization.
organ
cell
a group of tissues that work together to
perform a common function
the basic unit of structure and function of
living things
a group of cells that work together to
perform a common function
organism
organ system
a living thing that is made of organ systems
tissue
a group of organs that work together to
perform a common function
Answers
Cell- the basic unit of structure and function of living things
Tissue- a group of cells that work together to perform a common function
Organ system-a group of organs that work together to perform a common function
Organism- A living thing that is made of organ systems
Answer:
Look at screenshot
Explanation:
Which of these human activities is most likely to cause the excessive growth of phytoplankton
in the world's oceans?
F The use of chemical fertilizers that are carried by runoff into rivers
G The logging of old-growth forests, which results in erosion
A The spraying of chemical herbicides that reduce carbon dioxide in the air
J
The mining of fossil fuels, which requires digging underground tunnels
Answers
Answer:
F
Explanation:
Chemical fertilizers usually contain nutrients that phytoplankton require to grow
Answer:
F
Explanation:
Tttttcy
What is the explanation for multiple nuclei in skeletal fibers? a) Skeletal muscle fibers are composed of multiple skeletal muscle cells; thus each contains multiple nuclei. b) Muscle fibers form from the fusion of embryonic myoblast cells and satellite cells; thus each fiber contains multiple nuclei. c) Because muscle fibers are so long, many copies of DNA are needed to keep the cell functioning. d) Muscle fibers divide throughout life, but commonly only the nucleus divides, resulting in multinucleated cells.
Answers
Option that explains that skeletal muscle fibers have multiple nuclei be is (B) Muscle fibers form from the fusion of embryonic myoblast cells and satellite cells; thus each fiber contains multiple nuclei.
Skeletal muscle fibers are multinucleated cells, meaning they have more than one nucleus. This is due to the process of myogenesis, which involves the fusion of multiple myoblast cells to form a mature skeletal muscle fiber.
During development, myoblast cells, which are specialized muscle precursor cells, undergo proliferation and differentiation. These myoblast cells fuse together to form a single, large skeletal muscle fiber. However, instead of the nuclei of the myoblast cells merging into a single nucleus, they remain separate within the resulting muscle fiber. As a result, the mature skeletal muscle fiber ends up with multiple nuclei distributed throughout its length.
The presence of multiple nuclei in skeletal muscle fibers is advantageous for their functioning. The nuclei provide genetic material and contribute to protein synthesis, which is essential for muscle growth, repair, and adaptation to exercise.
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What are some obstacles you would face if you dug a hole through the center of the earth and then fell through the hole? Please help!!
Answers
Answer: The farther you go down the hotter it gets because earth's core is very very hot
Explanation:
Which of these are cellular activities that sustain a single-celled organism through its lifetime?
Answers
Cellular activities that sustain a single-celled organism throughout its lifetime include metabolism, cell division, and response to stimuli.
Metabolism refers to the set of biochemical reactions that convert nutrients into energy and building blocks for essential macromolecules.
These reactions are catalyzed by enzymes and are critical for maintaining homeostasis, which is the stable internal environment necessary for the organism's survival.
Cell division is essential for a single-celled organism's reproduction and growth. This process, known as binary fission, involves the replication of the organism's DNA, separation of the duplicated genetic material, and division of the cell into two identical daughter cells.
This ensures that the organism's genetic information is preserved and passed on to the next generation.
Response to stimuli allows single-celled organisms to adapt to their environment and optimize their chances of survival. Organisms can sense changes in their surroundings, such as nutrient availability, temperature, and pH, and react accordingly.
For example, they may move towards a more favorable environment through processes like chemotaxis or phototaxis.
These cellular activities work together to ensure the survival, growth, and reproduction of single-celled organisms throughout their lifetime.
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Explain how DNA fragments are separated by gel electrophoresis
Answers
Gel electrophoresis is a widely used technique in molecular biology that allows for the separation of DNA fragments based on their size and charge.
The process involves several steps:
Preparation of the gel: A gel matrix, usually made of agarose or polyacrylamide, is prepared and poured into a gel tray. Small wells are created at one end of the gel, which will hold the DNA samples.
Loading the samples: DNA samples, which have been treated with restriction enzymes to generate fragments of different sizes, are loaded into the wells of the gel.
Applying an electric field: The gel tray is immersed in a buffer solution, and an electric field is applied across the gel. One end of the gel serves as the positive electrode (anode), and the other end as the negative electrode (cathode).
Migration of DNA fragments: When the electric field is applied, negatively charged DNA fragments migrate through the gel towards the positive electrode. Smaller fragments move more quickly through the gel matrix, while larger fragments move more slowly.
Visualization of DNA bands: After the electrophoresis is complete, the DNA fragments are visualized using stains or fluorescent dyes. The bands formed on the gel represent the separated DNA fragments, with each band corresponding to a specific size.
By analyzing the position and intensity of the DNA bands, researchers can determine the size of DNA fragments and gain insights into various genetic phenomena, such as gene mapping, DNA sequencing, and genetic variation analysis.
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a prokaryote that occupies a habitat that is extremely salty is a(n)
Answers
A prokaryote that occupies a habitat that is extremely salty is a halophile.
The Greek word for "salt-loving" gave rise to the term "halophiles," which refers to extremophiles that can survive in salty environments. In this article, the term "microorganisms" is used. A Lewis acidic species that has some capacity to extract halides from other chemical species is referred to as a halophile in chemical terminology. While the majority of halophiles fall within the category Archaea, there are also several bacterial and eukaryotic species that are halophiles, like the alga Dunaliella salina and the fungus Wallemia ichthyophaga. Some well-known species, particularly bacteriorhodopsin, emit a red colour from carotenoid compounds. Halophiles can be discovered in bodies of water like the Great Salt Lake in Utah and Owens Lake in California that have salt concentrations more than five times higher than those of the ocean.
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Vocalizations enable primates to Group of answer choices communicate as humans do. name resources and monitor the social group. communicate, but only between members of the same hierarchy. solve distressing situations among primate groups.
Answers
Answer:
name resources and monitor the social group.
Explanation:
Vocalisation is use as a medium of communication in primates. It is an important feature of primates social life. It is use to facilitate social interaction among them selves and this help to establish and endorse relationship that lead to reproductive success.
Vocalisation is use to name resources and monitor the social group because it is use as medium of communication where information is ttransfer among the primates and it's can be use monitor the social group through interaction between members of the group by establishing social bonds and increasing reproductive success.
You receive a sample slide of an organism. While observing it under a microscope, you notice that the organism is single-celled and green in color. There are multiple individual organisms on the slide. Based on this initial information, you guess that it is either a bacterium or a protist. Which trait is least likely to help you identify the correct group of this organism? (1 point)
Answers
Answer:
the presence of cell structures in the cell
Explanation:
If you do not know the reasoning behind this, you may want to read the explanation assignment the teacher adds, or do more research, look at notes, or pay attention during class :)
PLEASE HELP!! I NEED THIS ANSWERED FAST PLEASE!!!
In humans, the form of cell division
in which the number of
chromosomes is halved to produce
gametes is known as -
a) mitosis
b) centrioles
c) meiosis
d) cytokines
Answers
the answer to this question is c meiosis
Answer: C. Meiosis
Explanation: "In humans, n = 23. Gametes contain half the chromosomes contained in normal diploid cells of the body, which are also known as somatic cells."