Respiratory organs have large surface areas. how is this an advantage to an animal?
Cold sores are caused by the herpes simplex virus type 1. a company that wants to develop antiviral drugs would ask a research immunologist to study —
Answer:
the answer is A
Explanation:
How do mirnas function in controlling gene expression? view available hint(s) how do mirnas function in controlling gene expression? by binding to dna and preventing transcription of certain genes?
miRNAs are key components in gene regulation, working not by binding to DNA but by binding to mRNAs post-transcription. Their interaction with mRNAs results in mRNA degradation or inhibition of translation, suppressing specific gene expression.
Explanation:MicroRNAs, commonly referred to as miRNAs, play a crucial role in the regulation of gene expression. Unlike the student's proposition, miRNAs do not generally bind to DNA. Instead, they function by binding to messenger RNAs (mRNAs) after transcription has occurred. The interaction between the miRNA and the mRNA typically results in the mRNA's degradation or the inhibition of its translation into a protein, thus preventing the expression of the corresponding gene.
These small non-coding RNA molecules are key components in the post-transcriptional regulation of gene expression, and can suppress the expression of specific genes through a process known as RNA interference. The ability of miRNAs to control gene expression makes them important regulators of various biological processes, including cell growth, differentiation, and apoptosis.
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Large blood vessels that carry blood away from the heart to body tissues are called
The fluid in glomerular capsule is similar to plasma except that it does not contain a significant amount of ________.the glomerulus differs from other capillaries in the body in that it ________. the glomerulus differs from other capillaries in the body in that it ________. is drained by an efferent arteriole is impermeable to most substances has a basement membrane has a blood pressure much lower than other organ systems
The fluid in the glomerular capsule is like plasma but lacks significant protein. The glomerulus distinguishes itself from other body capillaries in that an efferent arteriole drains it and maintains a higher blood pressure, facilitating efficient blood filtration.
Explanation:The fluid in the glomerular capsule (also known as Bowman's capsule) is similar to plasma except that it does not contain a significant amount of proteins. This is because the filtration membrane separates the blood in the glomerular capillaries, and the capsular space allows small substances such as water, ions, and glucose to pass through but blocks larger ones like proteins and blood cells.
The glomerulus differs from other capillaries in the body in two main respects. Firstly, it is drained by an efferent arteriole, which is unique because, in general, capillaries merge into venules, not arterioles. Secondly, the glomerulus has a significantly higher blood pressure than other capillaries due to its position between two arterioles (afferent and efferent arterioles). This high pressure allows for the rapid and efficient filtration of blood.
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Which of the following personal health practices should a person follow to prevent obesity? A) Limit spending time outdoors in summers. B) Have a balanced diet and exercise regularly. C) Wash hands frequently to maintain proper hygiene. D) Get the DNA modified to replace the faulty gene.
Answer:
def B
Explanation:
The personal health practices that should a person follow to prevent obesity are having a balanced diet and exercising regularly. The correct option is B.
What is obesity?Obesity is a body condition in which the body becomes overweight because you eat more than your body's requirements. It is harmful to the health of the person because it generates many diseases.
Personal health practices are the practices that a person does for their good health of them. These practices include eating nutritious food and exercise which keep the body fit.
Eating a balanced diet means including all nutrients in it and doing regular exercise to maintain health and keep the body out of obesity.
Thus, the option is B. Have a balanced diet and exercise regularly.
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A particular cell has half as much dna as some of the other cells in a mitotically active tissue. the cell in question is most likely in?
Plant hormones can have different effects at different concentrations. this explains how ________.
Concentration produce different effects on plant hormones which explains why auxin at low concentration induce growth in apical meristems but at higher concentrations inhibit growth of axillary buds.
What are plant hormones?Plant hormones are chemical substances produced by plants which modify and regulate the growth and development of plants.
Plants hormones include the following:
auxin abscissic acid ethylenePlant hormones can have different effects at different concentrations. At higher concentrations they may have inhibitory effects while at low concentrations, they may have stimulatory effects.
For example auxin at low concentration induce growth in apical meristems while at higher concentrations, they inhibit growth of axillary buds.
Therefore, concentration produce different effects on plant hormones.
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__________are inpatient treatment facilities that focus on the "resocialization" of the individual and use the program's entire community as important treatment components. question 13 options:
a.therapeutic communities
b.medical detoxification clinics
c.matrix communities
d.all of these are correct.
Answer is a. therapeutic communities.
Therapeutic communities are a common form of long-term residential treatment for substance use disorders. These communities provide drug-free environments in which people with addictive problems live together in an organized and structured manner to promote change toward recovery and re-socialization. Some such groups evolved into self-supporting and democratically run residences to support abstinence and recovery from drug use.
Any chemical, physical, or biological changes in the environment that harms living organisms is called
When compared to the leg muscles of an olympic sprinter, the muscles of an olympic marathoner would likely show a greater proportion of oxidative slow-twitch fibers?
What evidence would you need to show that genetic diversity is the result of reproductive character displacement?
Which of the following is defined as the age structure, sex ratio, and reproductive capacity of a population? Composition Distribution Dynamics Migration
Answer:
The correct answer is option A, Composition
Explanation:
The population composition is the representation of population distribution based on the factors such as age, sex, culture, ethnic values etc. It is very essential component of population studies. There can be following types of population composition -
a) Based on age
b) Based on sex
c) Based on ethnic values
d) Based on religion
e) Based on caste
f) Based on language
g) Based on occupation
when grass is cut with a lawn mower, it gives off a distinct aroma. why does newly-mowed grass smell a little bit sweet?
Answer:
When the grass leaves are cut, a small amount of sugar is produced at the site of injury to plug the phloem.
Explanation:
I took the test and it's the correct answer hope it helps!
The ________ is not adequate for searching through large arrays
algorithm
hope this helps (and that it is right)
Which disease is characterized by porous bones? osteomalacia rickets osteosarcoma osteoporosis?
In theory, a population grows most quickly at ____ % of the environment's carrying capacity
A herpetologist wants to estimate how many snakes are in a forest. She counts 12 snakes in a 100,000 square foot area. Estimate how many snakes are in the entire forest of 7,000 acres.
(1 acre = 43,560 square feet)
Please help me solve thus
Answer:
Approximately 36 522
Explanation:
First convert 100 000 square ft to acres = 2.3
Using ratio method:
[tex]x = \frac{12 x 7000}{2.3} \\ = 36 521.7[/tex]
What is an allele? a dna sequence different versions of a gene a hairstyle a physical trait?
The sequencing of mitochondrial dna to trace changes in human ancestors over time involves which specialization of anthropology?
Treatment aims to _____ a disease or reduce the severity of its signs and symptoms.
Answer:
The correct answer is - cure.
Explanation:
Treatment is medical care or practice to provide relief to the person that is ill or sick. It includes the administration of medicinal doses.
The aim of medical or clinical treatment is to cure the disease, illness or injury of the patient by medicine or medical care. Treatment for a concerned illness is to reduce the severity of it's a sign and symptoms.
Thus, the correct answer is - cure.
A scientist finds the bones of a dinosaur. what could help the scientist determine the approximate age of the dinosaur bones
Answer:
Explanation:
the kinds of trees living in the area of the bones
A pregnant woman who is a vegan needs to take ______ nutrient supplements.
What common bone structure is shared in the forelimbs of the lobe fin fish and amphibians?
Water-soluble nutrients absorbed into the blood are routed directly from the small intestine through the portal vein to the __________ before any other organ.:
Final answer:
Water-soluble nutrients absorbed from the small intestine are sent directly to the liver via the portal vein for processing before reaching other parts of the body.
Explanation:
Water-soluble nutrients that are absorbed into the blood are sent directly from the small intestine through the portal vein to the liver before any other organ. The hepatic portal system is a critical component in the body's nutrient distribution system, where the liver acts as a processing plant. Nutrient-rich blood from the small intestine, where most absorption occurs, reaches the liver for detoxification, storage, or metabolic processing before being circulated to the heart and throughout the body.
What happens if the human egg is not fertilized? see section 42.2 (page 797) . view available hint(s) what happens if the human egg is not fertilized? see section 42.2 (page 797) . the egg is retained within the ovary. the corpus luteum degenerates. another egg will be ovulated immediately. chorionic gonadotropin levels increase?
Your roommate is 5' 1" and weighs 100 lbs what bmi category would she be in
Heterozygous alleles are found on ________ chromosomes
Answer is Homologous.
A diploid individual having two different alleles for a specific trait is called heterozygous. An allele is the alternative form of the same gene. The cells in diploid organisms contain sets of homologous chromosomes, which are paired chromosomes. Each chromosome of a homologous pair has the same genes on the same positions. Although homologous chromosomes have the same genes, they may have different alleles for those genes.
Example: The gene for seed color trait in a pea plant exists in pair. One gene or allele for yellow seed (R) and the other for green seed color (r). A heterozygous plant would contain alleles for seed color (Rr). Gene R is present one chromosome and its allele (r) is present on the other chromosome of the homologous pair.
Where are new skin cells produce to replace old cells that have been shed?
The production of the new skin cells occurs at the basal layer of the epidermis.
The skin is composed of three layers:
1. The epidermis- The outermost layer of the skin. Waterproof with the protective role and which serves as a barrier to infection. It also has its own layers (from the top): stratum corneum, stratum lucidum (only on hands and bottoms of feet), stratum granulosum, stratum spinosum, stratum basale.
The cells of stratum basale are constantly going through mitosis to produce new cells (keratinocytes) and as new cells are formed, the existing cells are pushed superficially away from the stratum basale.
2. The dermis,
3. The hypodermis.
i can confirm this is the answer.
The production of the new skin cells occurs at the basal layer of the epidermis.The skin is composed of three layers:1. The epidermis- The outermost layer of the skin. Waterproof with the protective role and which serves as a barrier to infection. It also has its own layers (from the top): stratum corneum, stratum lucidum (only on hands and bottoms of feet), stratum granulosum, stratum spinosum, stratum basale.The cells of stratum basale are constantly going through mitosis to produce new cells (keratinocytes) and as new cells are formed, the existing cells are pushed superficially away from the stratum basale.2. The dermis,3. The hypodermis.
when did the human population begin to grow at a faster rate than at any other time in history
During the industrial revolution, the population of the Western world started to increase quickly. Since the 1950s, the population of the world has increased significantly.
Which period saw the fastest growth in the human population?The world population doubled at the quickest rate between 1950 and 1987, growing from 2.5 to 5 billion people in just 37 years. This represents a population increase of around one generation. During this time, population growth peaked in 1962 at 2.1%.
When did the exponential growth of the human population begin?The population doubled in the 19th century, tripled in the 20th century, and reached 6 billion in the year 2000. This exponential increase was caused by breakthroughs in medicine, science, and the economy.
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Final answer:
The human population began growing at an unprecedented rate during the Industrial Revolution in the late 18th century, accelerating during the 20th century, primarily due to technological, agricultural, and medical advancements that improved living conditions and life expectancy.
Explanation:
The human population began to grow at a faster rate than at any other time in history around the start of the Industrial Revolution in the late 18th century. This marked the beginning of what is often called the population explosion. Advancements in technology, agriculture, and medicine have all contributed to exponential growth. The global population growth rate accelerated further during the 20th century and continues to grow in the 21st century. The shift from very slow growth to rapid increase can be visualized by the shape of a J-curve in population graphs.
For example, it took millennia for the human population to reach 1 billion around 1800 CE, and only a little over a century later, the population reached 2 billion. Within less than another century, an additional 5 billion were added, showcasing the exponential nature of recent population growth. Scientific advancements and industrialization played significant roles in creating conditions for the population to grow at previously unseen rates, which includes improved health care, increased food production, and better sanitation.