Down's syndrome occurs because of a(n)
missing sex chromosome
extra sex chromosome
additional 21st chromosome
additional 18th chromosome
Answer:
C.Additional 21st chromosome
Explanation:
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White blood cells are responsible for finding, engulfing and digesting invading bacteria in the body's fluids and tissue. What organelle would you expect to be in high abundance in a monocyte to aid in this function of digesting bacteria?
Answer:
In monocytes, which are a type of white blood cell, you would expect to find organelles called lysosomes in high abundance to aid in the function of digesting bacteria. Lysosomes are membrane-bound organelles that contain enzymes capable of breaking down various substances, including bacteria, through a process called phagocytosis.
Explanation:
We would expect Lysosomes to be in high abundance in a monocyte to aid in the function of digesting invading bacteria in body fluids and tissue.
Lysosomes are single membrane-bound organelles which are considered as the digestive bags of the cell. They contain a variety of hydrolytic enzymes such as proteases, nucleases, glycosidases, lipases, phospholipases, phosphatases, and sulfatases which digest molecules like carbohydrates, fats, proteins, nucleic acid etc
Monocytes are a variety of leukocytes which can differentiate into macrophages. These macrophages participate in the host immune response. When any foreign substance such as a microbe is encountered, the monocytes/ macrophages come into play and engulf it. Once engulfed, the digestion is carried out by the Lysosomes and thus the threat of infection is mitigated.
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Dehydration synthesis leads to WICH formation
Answer:
Polymers...........
Explanation:
What kind of solution (hypertonic, hypotonic, or isotonic) is distilled water compared to the cell cytoplasm?
Answer:
i dont remember honestly
Explanation:
characteristics of contaminated water
Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.
Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.
Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.
Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.
Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.
Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.
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Which of the following symbiotic relationships is incorrectly labelled?
A) Mutualistic: Clown fish and sea anemone
B) Commensalism: Bees and flowers
C) Parasitism: Mosquito and human
D) Parasitism: Fleas and dogs
C) Parasitism: Mosquito and human symbiotic relationships is incorrectly labelled.
Which of the following symbiotic relationships is incorrectly labelled?The relationship labeled as incorrect is B) Commensalism: Bees and flowers.The relationship between bees and flowers is actually mutualistic, as the bees pollinate the flowers, providing necessary nutrients for the flowers to grow and reproduce, while the flowers provide the bees with nectar and pollen.In contrast, commensalism is a relationship in which one organism benefits while the other is generally unaffected.For example, the relationship between fleas and dogs is commensalism because the fleas benefit by having a warm place to stay and a free meal, while the dog is generally unaffected by the presence of the fleas.Parasitism, on the other hand, is a relationship in which one organism benefits at the expense of the other.An example of this is the relationship between mosquitoes and humans, where the mosquito benefits by getting a meal of blood from the human, while the human is harmed due to the presence of the mosquito.To learn more about Parasitism refer to:
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Nasir is 12 years old. What outcome is MOST likely if his caregivers talk with him openly about sexuality?
He will soon come out as gay.
He will be less likely to contract an STI.
He will have sex by age 13.
He will marry by age 18.
He will be less likely to contract an STI.
Option B is the correct answer.
What is STI?STI stands for sexual transmitted infection. A sexually transmitted infection (sexually transmitted disease) is a serious condition that can develop after you have sex.
So if Nasir is 12 years old, and if his caregivers talk with him openly about sexuality, he will be well informed about dangers of premature sex and sexually transmitted disease.
Thus, he will be less likely to contract an STI.
The wrong choices in the given options are;
He will soon come out as gay.
He will have sex by age 13.
He will marry by age 18.
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Pituitary dwarfism results from a decreased secretion of.
, which in turn decreases the rate of cell division of
Answer:
Pituitary dwarfism results from destruction of the pituitary gland via a neoplastic, degenerative, or anomalous process. It may be associated with decreased production of other pituitary hormones, including thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), luteinizing hormone (LH), follicle-stimulating hormone (FSH), and GH.
Explanation:
Turn this DNA sequence into
amino acids.
CGA-ACC-GCG-ATT
I need help ASAP
Ways in which biology, technology, and society are connected?
Submit your age structure diagrams from the lesson; be sure you have correctly labeled each diagram.
You had to create age structure diagrams for three countries in the Population Age Structure lesson. Submit your age
structure diagrams from the lesson. Be sure you have correctly labeled each diagram and the country that it is for. Use
those diagrams to answer the questions for part 2
Part 2:
Answer the following questions about your diagrams:
1. Which country has the youngest population?
2. What percentage of Canada's 2005 population was between the ages of 30 and 44?
3. What is a cohort? Provide an example.
4. A human population is said to be "aging" If its members age 0-14 make up less than 30 percent of the population
and those age 75 and over make up more than 6 percent of the population. Do any of the countries in your lab have
an aging population? If so, which ones?
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Answer:
What is the definition of a word called?
its style
its tone
its denotation
its connotation
Explanation:
Energy from the sun arrives as electromagnetic radiation with a wide range of wavelengths and frequencies. Which form of electromagnetic radiation has more energy than visible light waves have?
A.radio wavesB.infrared wavesC.microwavesD.ultraviolet waves
Answer:
Ultraviolet waves
Explanation:
Definition activated by stalled replication or DNA damage initiates a number of DNA processes, some of which are error-free. allows DNA repair without template, with just a random incorporation of dNTPs. may cause errors but not detrimental.
Sanger method
RecA protein
Silent mutation
SOS repair system
RecA protein allows DNA repair without a template, with just random incorporation of dNTPs.
RecA protein catalyzes unidirectional branch migration, allowing for the completion of recombination and the production of an area of heteroduplex DNA with thousands of base pairs in length. RecA has an extra site for binding and hydrolyzing ATP because it is a DNA-dependent ATPase.
All bacteria that the RecA protein has been properly searched for, including Mycoplasma with its small genome, have been found to contain it. More than 60 bacterial species have had their recA genes sequenced.
RecA protein is in charge of recognizing DNA molecule homology and mediating the DNA strand exchange process that results in recombination intermediates.
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Explain briefly what is the branch of biologuy and the role
Answer:
Biology is a branch of science that deals with living organisms and their vital processes.
Explanation:
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What are superbugs?
A. Insects that have become resistant to bug sprays.
B. Insects that have been genetically enhanced with superior abilities.
C. Bacteria that have been genetically modified to perform specific chemical functions for humans.
D. Bacteria that have become resistant to antibiotics.
Answer: D
Explanation:
Superbugs are bacteria that have developed resistance to antibiotics.
MRSA (methicillin-resistant Staphylococcus aureus) is one such superbug. It has become resistant to many antibiotics, and MRSA infections can be difficult to treat.
Why is art a fun class to take.
Art class provides a creative outlet for self-expression and allows students to develop their imagination, critical thinking, and problem-solving skills in a fun and engaging way.
What is an art class?Art class provides a creative outlet for students to express themselves and unleash their imagination. It allows them to explore different mediums, techniques, and styles, and to experiment with color, form, and texture. In art class, there is no right or wrong answer, and students are free to experiment and make mistakes.
The class also encourages critical thinking, problem solving, and communication skills, as students learn to discuss and analyze works of art. Art class is a place where students can forget about their other classes and just have fun making art.
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C. Did any hominids have a larger cranial capacity than humans? If so, which species?
Answer:
Yes, heidelbergensis species had a larger cranial capacity than humans.
Explanation:
How do biologists define life, and what were the origins of life? ( Penn Foster )
Biologists define life as a characteristic of organisms that demonstrate growth, reproduction, adaptation, response to stimuli, and metabolism.
It is a complex system with a set of physical and chemical properties that distinguish living things from non-living things.Life on Earth is thought to have emerged around 4 billion years ago, through a process known as abiogenesis or biopoesis.
The origin of life has been widely debated over the years, but the leading scientific theory suggests that life emerged spontaneously from non-living matter in the form of a chemical reaction.There are two leading hypotheses about the origin of life on Earth: the "RNA World" hypothesis and the "Metabolism First" hypothesis.
Both theories rely on complex chemical processes that took place under certain environmental conditions, such as the presence of water, heat, and the presence of certain chemicals and minerals.Based on the available evidence, it seems that life emerged gradually over time through a series of chemical reactions.
These reactions led to the formation of simple organic molecules, which eventually combined to form more complex compounds such as amino acids and proteins. Eventually, these compounds came together to form the first living cells, marking the beginning of biological evolution.
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In which layer of the atmosphere did the Concorde cruise?
Answer:
The Concorde aircraft cruised at Mach 2 at about 19,000 m (62,000 ft), and the SR-71 cruised at Mach 3 at 26,000 m (85,000 ft), all within the stratosphere.
Explanation:
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TRUE/FALSE. the most prevalent alleles in a population are called wild type alleles. (click to select)2. recessive alleles usually cause an increase in functional protein expression. (click to select)3. if a person is heterozygous for a recessive disease allele, they normally possess 50% of the normal amount of protein. (click to select)4. a single copy of an allele showing complete dominance typically masks the effects of a recessive allele. (click to select)5. dominant alleles are always the result of gain of function mutations. (click to select)
It is accurate to say that wild-type alleles are the ones that are most common in a population.
What does the population's most common allele go by?The term "wild type allele" refers to the allele that most frequently encodes the phenotype in a given natural population. Genetic abbreviation for it is frequently "+".A term that refers to a gene in its unaltered (natural), unmutated form.It is accurate to say that wild-type alleles are the ones that are most common in a population. Commonly, functional protein expression is increased by recessive alleles. A individual who has 50% of the normal protein levels if they are heterozygous for a recessive illness allele.It is accurate to say that wild-type alleles are the ones that are most common in a population.To learn more about wild-type alleles refer to:
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“Fortunately, the V-2 came too late in the war to help the Germans win.” How did the United State's rocketry program, NASA, etc. benefit from this?
The way that United State's rocketry program, NASA, etc. benefit from the issue with e V-2 was that While the Space Race frequently fueled Cold War rivalry and anxiety, it also had significant positive effects on human society. Telecommunications, microtechnology, and other fields all experienced significant advancements as a result of space exploration.
What advantages does the NASA space program offer?The singular goal of NASA offers advantages both large and small. Spending in space exploration boosts the economy, creates jobs, and kickstarts businesses. Our inventions enhance day-to-day living, promote medical knowledge, aid in disaster relief efforts, and more.
Therefore, The Space Race was crucial because it revealed which nation had the best economy, science, and technology in the globe. Both the United States and the Soviet Union knew after World War II how crucial rocket research would be for the military.
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5. Describe how adaptations can help survival.
Answer:
Adaptations can help by if an animal had to leave its homes cause it was getting destroyed it would need to adapt to a new area of land so it could survive.
Explanation:
Answer: I got it right the guy on top is right
Explanation:
Which resource is a direct ecosystem service?(1 point)
Responses
land development
land development
biodiversity
biodiversity
photosynthesis
photosynthesis
fresh water
A direct ecosystem service resource is fresh water. Ecosystem services are advantages that humans derive from ecosystems.
What kind of ecosystem service is an example of?Forests and grasslands provide a range of ecosystem services. In addition to providing food, fuel, and fibre, forests preserve biodiversity and genetic resources, purify the air, filter water supplies, control flooding and erosion, and provide opportunities for recreation, education, and cultural enrichment.
Direct ecosystem: what is it?Direct ecosystem services are those offered by an ecosystem that directly benefit people. They consist of food, water, the cycling of nutrients, crop pollination, precipitation, and other material advantages.
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How does science lead to new technology and how does technology add to our scientific understanding of the natural world?
Using the speed of light, calculate for the frequency of an electromagnetic wave with a wavelength of 835 nm.
3.
Which factor has the greatest effect on a person's human development?
a. biology
b. environment
c. Both A and B
d. Neither A nor B
Answer:
b
Explanation:
environmental factors play a very important role in the development of an individual
changes in latitude then lead to adaptation by an individual.....whereas some people who don't study biology still develop.
Answer:
A) Biology
Explanation:
I think the environment will have it's greatest effect on social development
one way in which stigma is adapted for reproduction in plants
Answer:
In a flower, this landing zone and entrance is the stigma. It plays a pivotal role in reproduction. Most stigmas are adapted to trap pollen with hairs, flaps and other surfaces to increase their efficiency. Most stigmas are covered with a waxy, sticky substance.
Which of the following conditions would a physical therapist treat?
hypochondria
anxiety
infertility
Parkinson's disease
Try to search it up to make sure that its right but I think it's anxiety
what are the similarities of mitosis and miosis?
Answer:
Mitosis and meiosis are two processes by which eukaryotic cells may divide and share several similarities: They are both preceded by interphase (which includes DNA replication) They both divide according to a common pathway (prophase → metaphase → anaphase → telophase) They both split their cells via cytokinesis.
Explanation:
Answer:
Explanation:
Mitosis and meiosis are the two ways by which cells reproduce. As a result, they share several steps in their respective processes. Meiosis adds another division and a step that mixes the genetic material from the parent cells, but in both cases the cell must duplicate its DNA, pull it apart into two sets, place the sets on each end of itself, and then divide down the middle. Both mitosis and meiosis produce fresh new cells based on their parent cells' genes.
Which scientists used the word cell for the structure he observed when he examined a piece of cork under microscope
Answer:
Rober hook.
Explanation: