Most throat cancers are generally related to smoking and not hereditary, unless the family members are predisposed to smoking.
Bacteria Natural Selection
Answer:
Bacterial resistance arises through the simple process of natural selection. Bacteria divide rapidly, but DNA replication is imperfect. In the presence of antibiotics, while most bacteria are killed, a small number of resistant mutants may survive and take over.
Explanation:
Plants make sugar from sunlight through ______.
A. Phloem
B. photosynthesis
C. Xylem
D. osmosis
Answer:
B. Photosynthesis
Explanation:
Photosynthesis is the process plants go through to make glucose, also known as sugar.
What is the final result of genetic drift in populations of
Answer: Genetic drift may result in the loss of some alleles (including beneficial ones) and the fixation, or rise to 100% frequency, of other alleles.Once it begins, genetic drift will continue until the involved allele is either lost by a population or is the only allele present at a particular gene locus within a population. ... Genetic drift can result in the loss of rare alleles, and can decrease the size of the gene pool.
Explanation:
Answer:
decrease the genetic diversity of a population.
Explanation:
Genetic drift describes random fluctuations in the numbers of gene variants in a population. Genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time.
Genetic drift can cause a new population to be genetically distinct from its original population, which has led to the hypothesis that genetic drift plays a role in the evolution of new species.
What is the meaning of STEM
Answer:
Science, Technology, Engineering, and Math.
Answer:
problem solving creativity critical analysis
STEM is an approach to learning and development that integrates the areas of science, technology, engineering and mathematics. Through STEM, students develop key skills including: problem solving. creativity. critical analysis.
Explanation:
This should help! Have a great day!!
An organism, like a plant, that can make its own food is called (choose all
that are correct)
A. a heterotroph.
B. an autotroph.
C. a producer
D. a decomposer.
Answer:
B
Explanation:
How does the large intestine help the body excrete wastes?
It reabsorbs water from filtrate.
It forms urine.
It removes urea from the body.
It processes undigested food into feces.
Answer:
It processes undigested food into feces.
Explanation:
Answer:
D. It processes undigested food into feces.
Explanation:
Correct on EDGE 2021!
PLEASEEEE HELPPPPPPPPPPP
Professor Marcus has identified a new species of beetle in the Amazon Rainforest. The professor then investigates the process of gene expression in the cells of the beetle. Which is an expected result of the investigation?
A The processes of transcription and translation are unique in the beetle.
B The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.
C The process of transcription in the beetle is similar to other organisms, but involves a unique set of nucleic acids in mRNA.
D The processes of transcription and translation, including the genetic code, are the same in the beetle as in nearly all other organisms.
Answer:
D The processes of transcription and translation, including the genetic code, are the same in the beetle as in nearly all other organisms.
Explanation:
Transcription is the cellular process where a specific DNA fragment called 'gene' is used as a template to create a complementary RNA molecule, usually a messenger RNA (mRNA). Subsequently, this mRNA is then used to synthesize a polypeptide chain (i.e., a protein) in the ribosomes. In eukaryotic organisms such as, in this case, beetles, both transcription and translation are essentially the same processes, and the genetic code used in the protein synthesis is also the same. The difference between beetles is the variation among DNA nucleotide sequences (genomes) which are used as templates to synthesize mRNAs, thereby their final products (proteins) are also different.
How might we determine if the trait of albinism is sex-linked?
Answer:
Throught genetics varaition. Crossing over and all
Explanation:
Becuase I said so
what are the two effects of world war one?
Answer:
1. Loss of almost an entire generation of young men by Europe.
2. Nationalism raised in the colonial empires
Explanation:
The First World War leads to destruction of empires. Numerous new nation-states were created. United States were forced to become a world power that in turn lead to the rise of Hitler and Soviet communism.
Effects of world war one are as follows:
1. Loss of almost an entire generation of young men by Europe.
2. Nationalism raised in the colonial empires
both plant and animal cells:
A) produce proteins
B) contain a large vacuole
C) photosynthesize
D) contain green pigments
Some evidence on the safety of vaccines.
Answer:
The safety and effectiveness of vaccines are under constant study. Because vaccines are designed to be given routinely during well-child care visits, they must be extraordinarily safe. Safety testing begins as soon as a new vaccine is contemplated, continues until it is licensed, and is monitored indefinitely after licensure.
Explanation:
Answer:
well
Explanation:
Before a vaccine is ever recommended for use, it’s tested in labs. This process can take several years. FDA uses the information from these tests to decide whether to test the vaccine with people.
During a clinical trial, a vaccine is tested on people who volunteer to get vaccinated. Clinical trials usually start with 20 to 100 volunteers, but eventually include thousands of volunteers. These tests can take several years and answer important questions like:
Question 5
Some human cells can perform anaerobic respiration for limited amounts of time, such as during periods of heavy exercise. Use the results of your experiment to explain how anaerobic respiration could benefit human survival.
Answer:
My experiment showed that energy production, or respiration, occurred in yeast even when little oxygen was present. During exercise, the lungs must work hard to take in oxygen, which then circulates to the body parts that need it. The ability to preform anaerobic respiration for short periods of time allows humans to sustain activity, even when oxygen is limited in the body.
Explanation: from plato, so change it a bit.
The experiment showed that energy production, or respiration, occurred in yeast even when little oxygen was present. During exercise, the lungs must work hard to take in oxygen, which then circulates to the body parts that need it. The ability to preform anaerobic respiration for short periods of time allows humans to sustain activity, even when oxygen is limited in the body.
What is anaerobic respiration ?Anaerobic respiration is respiration using electron acceptors other than molecular oxygen (O2). Although oxygen is not the final electron acceptor, the process still uses a respiratory electron transport chain.
In aerobic organisms undergoing respiration, electrons are shuttled to an electron transport chain, and the final electron acceptor is oxygen. Molecular oxygen is an excellent electron acceptor. Anaerobes instead use less-oxidizing substances such as nitrate (NO−3), fumarate (C4H 2O2−4), sulfate (SO2−4), or elemental sulfur (S). These terminal electron acceptors have smaller reduction potentials than O2. Less energy per oxidized molecule is released. Therefore, anaerobic respiration is less efficient than aerobic.
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Why do the temperatures change over the months?
O A. Because the Moon is tilted on its axis, it reflects more sunlight on Earth during different times of Earth's yearly orbit.
B. Because the Sun is tilted on its axis, parts of Earth get more sunlight during different times of Earth's yearly orbit.
O C. Because Earth is tilted on its axis, the stars reflect more light during different times of the Earth's yearly orbit.
D. Because Earth is tilted on its axis, parts of Earth get more hours of sunlight during different times of Earth's yearly orbit.
Answer:
Answer
Explanation:
B because the more the sun is titled the more heat=different season.
Because Earth is tilted on its axis, parts of Earth get more hours of sunlight during different times of Earth's yearly orbit. As Earth orbits around the Sun, its axis is tilted at an angle of about 23.5 degrees. Hence the correct option is D.
Why do the temperatures change over the months?The temperatures change over the months primarily because of Earth's axial tilt. As the Earth rotates around the sun, the angle at which sunlight hits different parts of the Earth changes.
This is because the Earth's axis is tilted about 23.5 degrees relative to its orbit around the sun. When a particular hemisphere is tilted toward the sun, it receives more direct sunlight, resulting in warmer temperatures.
Conversely, when that hemisphere is tilted away from the sun, it receives less direct sunlight, resulting in cooler temperatures. This cycle repeats itself annually, causing changes in temperatures over the months.
Hence the correct option is D.
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Question 4
Blood sugar homeostasis plays an important role in our health and well-being. If
blood sugar levels get too low or high, there are serious health complications that
can result. Which two body systems regulate blood sugar levels? Click on the correct
answers.
Select 2 correct answer(s)
A-Nervous System
B-Musculoskeletal System
C-Respiratory System
D-Digestive System
Identify the products of cellular respiration.
Answer:
Water and carbon (IV) oxide
Freckles are a dominant trait in humans. Both of the girls have the genotype FF for freckles. If either one marries a man with no freckles, what are the chances that their children will have freckles?
A. 0%
B. 50%
C. 75%
D. 100%
The answer is D. 100%
PLEASE HELP ITS DUE IN 3 HOURS!! 6. Match the correct definition to each vocabulary term:
Answer:
In order from top to bottom
C
A
E
D
B
Explanation:
1) Reflection is when a ray hits something reflective then bounces back. For example, light reflects off a mirror, which is why you can see yourself in a mirror.
2) Wavelength measures the size of a wave. It is measured from the crest or trough of one wave to the crest or trough of another.
3) Refraction occurs when waves go through different mediums at different speeds. This is why a straw looks bent when in water.
4) Frequency is a way of measuring the speed of a wave. It shows how many waves pass every unit of time.
5) Absorption means that all of the waves were absorbed into the medium and none of them passed through.
The ecosystem with the greatest sustainability will be the one that has the
Answer:
Different organisms or animals
Explanation: In a ecosystem, if you have different animals or organisms, it give them a better chance of survival, reason being that they can choose to eat whatever animal or organism they want because there is lots of animals to choose from the ecosystem. Basically the more diversity you have, the better chance you will survive, and the less diversity you have, the less chance of survival.
The theory of evolution through natural selection is considered a scientific theory because _____. See Concept 22.3 (Page 475) The theory of evolution through natural selection is considered a scientific theory because _____. See Concept 22.3 (Page 475) it is broad enough in scope to explain many observations it is supported by a massive body of evidence from many disciplines it is general enough to provide many testable hypotheses All of the above are correct. None of the above is correct.
Answer:
All of the above are correct:
it is broad enough in scope to explain many observations it is supported by a massive body of evidence from many disciplines it is general enough to provide many testable hypothesesExplanation:
The scientific theory is a conceptual framework used to explain facts or phenomena and to make predictions.
The theory is fundamental to science because it allows scientists to organize and understand observations.
The construction of a theory begins with a hypothesis. The scientist believes that a phenomenon occurs in a certain way, so he/she performs observations under the scientific method to prove that his/her hypothesis is valid or not valid. The systematization of the observations and the empirical data collected might derive from a scientific theory that explains the analyzed phenomenon.
A scientific theory is a knowledge that has been contrasted in several ways.
The theory of evolution has been tested in too many ways and by different disciplines, becoming one of the most strong theories. Research areas such as biology, genetics, paleontology, and geology, among others, have been tasting it and explaining many facts from it, which makes it broad enough to base on it any explanation of life.
A football team lost 14 yards on their first play then lost another 7 yards on the next play. what internet represents the total change in yards for the two plays?
Answer:
-21
Explanation:
Guessing autocorrect took "integer" and put in "internet"?
- 14 yards -7 yards = -21 yards
state two factors on which the gravitational force between two objects depends.
Answer:
Gravitational Force depends on two factors:
1. Product of mass of two object
2. Square of distance between their centers
Mathematically,
F = G *(m1* m2)/d²
Explnation:
Which of the following applications of genetic engineering is preventative and helps
individuals fight infection before its onset?
A)Insulin production
B)Vaccine production
C)Stem cell therapy
D)Gene therapy
how does geosphere effect the rock cycle?
Hydrosphere and Atmosphere: The erosion of rocks, a major part of the rock cycle and change in the geosphere over time, turns rock into sediment and then, sometimes, to sedimentary rock. ... Different combinations of sedimentary rocks form in environments with different climate conditions.
List and describe three methods of nonpoint pollution control.
1.
2.
3.
Answer:
1. Protect drinking water by using less pesticides and fertilizers.
2. Reduce soil erosion by using conservation practices and other applicable best management practices.
3. Use planned grazing systems on pasture and rangeland.
Scientific research shows that our global climate is changing. The global sea level is rising and ocean temperatures are...
the global sea level is rising and ocean temperatures are Increasing
Describe Why are trochophores of interest to biologists?
Answer:
Because it is also one of the larval stages in some other groups of invertebrates, and are used by biologists to deduce evolutionary relationships among different groups of invertebrates
Explanation:
hope it will help you.
1. Which structures make up the stamen and what gamete does it make?
2. Which structures make up the pistil and what gamete does it make? :
3. What is the primary function of a flower?
I
4. In which structure(s) does meiosis occur? :
5. Where does fertilization occur?:
6. In which part of the male reproductive organ are the pollen grains made?:
7. In which part of the female reproductive organ are the egg cells made?
1. The anthers and filaments make up the stamen and the stamen is responsible for making the male gamete. 2. The pistil is divided into three parts namely stigma, ovary, and style. It produces the female gamete. 3. Flower produces male and female gametes. 4. The anther and ovary. 5. Ovary. 6. Anthers. 7. Ovules.
How are the different parts of the plant reproductive system function to carry out sexual reproduction?The stamen is composed of anthers and filaments and is responsible for making the male gamete. The pistil is the female reproductive part of the flower and it is divided into three parts namely stigma, ovary, and style. It produces the female gamete. The primary function of the flower involves the production of male and female gametes and it carries out the process of sexual reproduction in plants.
The process of meiosis is used to produce the gametes. It occurs in the anther and ovary which are the reproductive parts of the plant. Fertilization takes place in the ovary in plants.
The pollens are produced in the anthers of the flower. The egg cells are produced by the ovules of the ovary.
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Division creates 2 types of B Cells: _________________ and Memory B Cells
Lymphocyte is the anwer
Answer:
Hello There!!
Explanation:
The answer is plasma cells.
hope this helps, have a great day!!
~Pinky~
Why is it important for DNA replication to be a
highly regulated process?
Answer:
Here you go
Explanation:
DNA replication is regulated to ensure all chromosomes replicate once and only once per cell cycle.Cell cycle regulation by protein phosphorylation ensures that pre-RC assembly can only occur in G1 phase, whereas helicase activation and loading can only occur in S phase.
True or False?
It takes about the one million years for
the magma to complete one circular
convection flow.
Answer:
False, since it takes more than one million years
Explanation:
Speeds can be faster for small-scale convection occurring in low-viscosity regions beneath the lithosphere, and slower in the lowermost mantle where viscosities are larger. A single shallow convection cycle takes on the order of 50 million years, though deeper convection can be closer to 200 million years.