Answer:
1.) The adaptation of the Pulmonata to terrestrial life has entailed little modification of the internal organization.
2.) The short feet of the penguins are an adaptation.
3.) Progress is the result of adaptation, rather than reconstruction.
4.) It is an adaptation of hide-the-thimble.
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PLEASE HELP MITOSIS VIDEO HANDOUT
Answer:
Produce sperm and egg cells (option d)Make identical types of cells (option b)Cancer (Option c)Interphase (option b)10% (option a)46 chromosomes (option b)Prophase (option a)Metaphase (option b)Anaphase (option c)Spindle fibers (option b)Telophase (option d)Cytokinesis (option b)Explanation:
There are two principal types of cells in the organism: Somatic diploid cells (2n) that reproduce by the process of mitosis, and germ cells that are diploid reproductive cells in charge of gamete production. Germ cells divide by mitosis and meiosis. Through the process of mitosis, they originate more sexual cells, but through the process of meiosis, they give place to haploid gametes, called sperm and egg cells, through the gametogenesis process.
Both somatic cells and germinal cells will end their cycle becoming two daughter cells with the same genetic dotation. Mitosis produces two daughter diploid cells (2n) from a diploid somatic cell (2n). During mitosis, the whole cell (23 chromosomes) first duplicates producing 46 chromosomes. Then the duplicated cell separates, producing two equal cells carrying 23 chromosomes each.
When we talk about the cell cycle, we refer to the interphase and the cell division (mitosis or meiosis).
The interphase occurs before mitosis and involves 90% of the cell cycle. The interphase is conformed of the G1, S, and G2 stages.
• During the G1 stage, it occurs a high intense biochemical activity. The cell duplicates its size, and the organelles and other molecules and cytoplasmatic structures also double. Some structures, such as microtubules and actin filaments, are synthesized from zero. The endoplasmic reticulum increases in size and produces a membrane for the Golgi complex and vacuoles, lysosomes, and vesicles. During this stage, the pair of centrioles separate, and each centriole duplicates. Mitochondria and chloroplasts also replicate.
• During the S stage, the DNI replication process occurs. This is the only stage in which the DNI molecule replicates. The synthesis of histones and other associated proteins also occurs.
• G2 stage is the interphase last step. DNI molecule begins to slowly condensate. The centrioles duplication process completes. The spindle fibers get assembled.
Once the whole interphase is completed, mitosis occurs involving 10% of the cell cycle.
During mitosis, the original cell with duplicated material suffers division, originating two exact same daughter cells. Mitosis occurs in only one phase.
In the prophase, it occurs chromosomes condensation and nuclear membrane breaks. During the metaphase, fibers of the spindle drive chromosomes and take them to the cell equatorial plane, where they line up. Each chromatid joins with a microtubule of opposites poles, but sister chromatids are still together.In the Anaphase, enzymes are activated to break the bonds and separate the chromatids, which migrate to the opposite poles, helped by the single apparatus fibers.In telophase, the duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole.Finally, occurs cytokinesis, which involves the invagination of the cell membrane and cytoplasmic division.The person who will give me answer the earliest i will mark him/her brainliest
Answer:
yeast is used in bakeries
Answer: See explanation below.
Explanation:
18. By nitrogen fixation by leguminous plants. Nitrogen content is replenished naturally in the soil due to the presence of a particular bacteria in the soil.
19. Washing will help remove bacteria from the surface of fruits and vegetables. One should not ever consume bacteria, which is why we wash our fruits and vegetables.
20. Biological control is the beneficial action of parasites, pathogens, and predators in managing pests and their damage. Biocontrol provided by these living organisms, collectively called “natural enemies,” is especially important for reducing the numbers of pest insects and mites.
21. You need to get pictures of agricultural machines (machines used for farming).
22. Microorganisms are broadly classified in four groups: Bacteria, fungi, protozoa, and algae.
23. Viruses are even smaller than bacteria, because they aren't even a full cell. They are simply genetic material.
24. The culture of bacteria called “Lactobacillus delbrueckii” produces yogurt.
25. Yeast has commonly been used for the making of bread, for example.
26. In anaerobic respiration yeast breaks down glucose, forming ethanol and carbon dioxide as its waste products. When the glucose is nearly used up, and provided that oxygen is present, yeast uses the ethanol as a respiratory substrate to produce carbon dioxide and water in aerobic respiration.
27. Typically, the term is used to describe an infectious microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. A pathogen may also be referred to as an infectious agent, or simply a germ.
28. Penicillins and Cephalosporins are two.
29. In 1796, the British doctor Edward Jenner did.
30. Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.
31. Refrigeration is the process of subjecting food or drink to cold in order to chill or preserve it.
32. A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease.
33. These diseases are considered as curse words, so they will be spelled differently: 3bola and C0VID-19
34. Aster yellows, bacterial wilt, and blight are all examples.
Describe 2 processes that are a part of the carbon cycle . Additionally why is it important to study and understand the carbon cycle
Through the cycle of photosynthesis, carbon dioxide is pulled from the air to deliver food produced using carbon for plant development. Carbon moves from plants to creatures. Through natural ways of life, the carbon that is in plants moves to the creatures that eat them. Creatures that eat different creatures get the carbon from their food as well.
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The sex of an organism is typically determined genetically, but environmental factors can also play a role. Scientists examined the roles of genes and environmental temperature in the sex determination of a lizard species. Individuals with a ZWpair of chromosomes are always female (ZWf), while individuals with a ZZ pair of chromosomes can be either male (ZZm) or female (ZZf). Scientists mated ZWf or ZZf females with ZZm males and incubated the eggs produced in 20 clutches at temperatures ranging from 23°C to 36°C. When the young hatched, the scientists determined their sexes (Table 1). Among the eggs that did not hatch, the mortality of embryonic lizards was approximately the same for both males and females.
(b) Using the template, construct an appropriately labeled graph, including error bars, to represent the data in Table 1. Based on the data, compare the ZZm×ZWf crosses and the ZZm×ZZf crosses to determine whether there is a significant difference between the two crosses in the fraction of female progeny produced at 24°C, 32°C, and 36°C.
Answer:
wait whaaa
Explanation:
Which is one of the primary goals of the Human Genome Project?
The Human Genome Project had several goals, including:
Determining the complete sequence of the human genomeIdentifying and mapping all of the genes in the human genomeDeveloping new technologies for genome mapping and sequencingProviding the data and tools necessary for researchers to study the structure, function, and evolution of the human genomeOverall, the primary goal of the Human Genome Project was to increase our understanding of the genetic basis of human health and disease, and to use this knowledge to improve human health.
HOPE IT HELPS!plate 2 there were 38 green leaved plants and 11 white leaved plants? What is the parental genotypes (given white is recessive)?
Answer:
Aa and Aa (can be any other letter, but both need to be heterozygous)
Explanation:
1 out of 4 offspring from the cross are white, so to verify that the genotypes of the parents are correct we can do 1÷4×49 (number of plants) and that equals 12.25, which is close enough to 11. So the genotypes of the parents are Aa and Aa.
What does working out have to do with the characteristics of life? 100 POINTS!!!!!!!!!
Increasing life expextancy by several years.
Hope this helps!!
Answer:
Working out regularly can improve your muscle strength and boost your endurance. Moving our body delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.
By having more energy to do daily activities your life expectancy and quality can increase significantly.
please help ,kindly , Sulfur levels become low in your growth medium . The biosynthesis of what polymer would be the most greatly impacted ( choose all that apply) a ,cysteine amino acids b,protein c,monosaccharides d,triglycerides e,RNA d,DNA
Explanation is[tex]^{}[/tex] in a file
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Which of the following is the body's first line of defense against disease?
In your own words, how does the sun's energy affect global winds?
Answer:
12345678910111213141516171819202223242526272282
If a person has one dominant and one recessive trait for a gene, the allele combination is …
Answer:
hybrid
Explanation:
HELP I AM CONF'usSED URGENT
determined by evolution, have evolved
The functions of cellular respiration is to
Answer:
Cellular respiration produces ATP (energy)
provides an opportunity to get
to know someone of the opposite sex outside your own family.
College life or getting to meet people provides an opportunity to get to know someone of the opposite sex outside your own family.
Understand differences and similarities of both genders, and learn how to get along with each other.
Establish good interpersonal relationships, enrich your social life.
Understand each otherAccept each otherLook for similaritiesLearn from each otherComplement each otherChoose friends carefullyBe sincereHow to Get to Know the Person
1 Ask open-ended questions
2 Ask them questions about the future
3 Learn about the interests
4 Be curious about the life
5 Actively listen to them
6 Open up about past.
7 Invite them to hang out with closest friends
8 Spend a typical day together
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which part of the graph represents how much energy the reactants need
gain to become products?
A.G
B. H minus F
C.F
D.H
Answer: The answer is F
Explanation: I just did it on A P E X
Answer:
C
Explanation:
Which are likely effects of an increase in the concentration of atmospheric carbon dioxide on both the global climate and carbon cycle?
Answer:
This question lacks options, however, it can be answered based on general understanding. The answer is;
It leads to an increase or rise in the global atmospheric temperature, called GLOBAL WARMING.
Explanation:
Carbon dioxide (CO2) is an atmospheric substance (gas) that has the ability to trap and emit heat. This property makes it a renowned green house gas. An increase in the amount of CO2 in the atmosphere will lead to a rise in the Earth's global temperature.
This process whereby the atmospheric temperature of the Earth increases is called GLOBAL WARMING, and it affects the climate of the world and carbon cycle of the Earth.
The sample of DNA below is being analyzed to determine if a patient has
the genetic disorder. DNA sequence:3' CAA-TCG-CGG-TCT-CTT 5'.
Determine the mRNA sequence from the patient's DNA sequence.
If the sample of DNA below is being analyzed to determine if a patient has the genetic disorder and this DNA sequence is 3' CAA TCG CGG TCT CTT 5', then the mRNA sequence from the patient's DNA sequence is GUU AGC GCC AGA GAA.
What is the cell process of genetic transcription?The cell process of genetic transcription refers to the generation of a complementary strand of RNA from a DNA template chain, which may be a fragment of a sequence and the resulting mRNA can then be used to produce a protein by another cell process called translation.
Therefore, with this data, we can see that the cell process of genetic transcription is based on the generation of a complementary RNA strand by using a DNA sequence template such as for example the coding region of a gene.
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What is the message system of the body, made up of nerve cells, that transmit electrochemical signals throughout the body?
Nervous system
Endocrine system
Lymphatic system
Immune system
What is the system that performs the collection of glands that secrete hormones into the bloodstream?
Nervous system
Endocrine system
Lymphatic system
Immune system
Where is the primary center of signal integration in humans?
The internal organs
The heart
The nerves throughout the body
The brain
What is the rapid change in a membrane's potential caused by the depolarization of a neuron?
Action power
Movement potential
Action potential
Neuron power
What type of synapse uses neurotransmitters?
Neurotransmitter synapses
Chemical synapse
Mechanical synapse
Automatic synapse
Which is not one of the three main regions of the brain?
Cerebrum
Cerebellum
Brain stem
Spinal cord
Which is not one of the four main integrated functions of the nervous system?
Receiving information
Transmitting information
Integrating information
Replying to information
What is the basic unit of the nervous system?
Neuron
Synaptic terminal
Myelin sheath
Nerve impulse
How do the sense of smell and taste interact?
They compete with the other sense
The sense of smell overrides the sense of taste
The sense of taste overrides the sense of smell
The compliment each other
What is the colored part of the eye?
Optic nerve
Cornea
Pupil
Iris
Which is not a receptor that can be found in the skin?
Thermoreceptor
Photoreceptor
Pain receptor
Mechanoreceprtor
Answer:
1. nervous system. 3.the heart. 7.
can you help with this
In the given question original DNA sequence has amino acid sequence methionine, tryptophan, asparagine, arginine, cysteine, and stop codon, so a mutation in 1 sequence: Transition, 2: Transition, and 3: Transversion.
How does a mutation in the DNA change the protein structure?In the first DNA sequence, the transition mutation changes the amino acid sequence of protein into methionine, stop, asparagine, arginine, and cysteine.
The second amino acid sequence after mutation is methionine, leucine, glutamine, proline, and leucine.
The third amino acid sequence after mutation is methionine, tryptophan, threonine, and alanine.
Therefore, a mutation in the DNA changes the amino acid sequence, which changes the structure and function of the protein.
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Which of the following can bones store for later use by the body?
blood cells
cartilage
minerals
marrow
Answer:
minerals
In addition to its mechanical functions, the bone is a reservoir for minerals (a "metabolic" function). The bone stores 99% of the body's calcium and 85% of the phosphorus. It is very important to keep the blood level of calcium within a narrow range.
DNA sequencing by the chain-termination method utilizes DNA polymerase I to make a complementary copy of the target or template DNA molecule. A reaction with a 20 bp template and dideoxyadenosine nucleotides as terminators results in the production of a 5 bp fragment. Based on this result, we can conclude that the template contains A) a cytosine at position 5. B) a thymine at position 5. C) a cytosine at position 16. D) a thymine at position 16
Answer:
D) a thymine at position 16
Explanation:
The chain termination method (Sanger sequencing), is a sequencing technique used to determine the nucleotide sequence of a specific fragment of DNA. The classical method has three steps: 1- the target DNA fragment to be sequenced is used as a template for chain-termination PCR technique where modified deoxyribonucleotides (ddNTPs) are added to the PCR reactions to be incorporated by the DNA polymerase during in vitro DNA replication, 2-the DNA fragments of different sizes are separated by electrophoresis, and 3-determination of the DNA sequence by observing the identity of the terminal ddNTP in each band of the electrophoresis gel. For example, if the bottom band in the electrophoresis gel colocalizes in the column with ddATP as terminator, then this fragment finishes with ddATP, which means that the last nucleotide from the 5' end is Adenine.
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Explain the application of biology especially the role of microbiology and biotechnology for the growing public and global health needs
A, in the development effective diagnostics ,prevention ,and treatment measures including production of novel drugs and recombinant vaccine
B,in the production of nutritionally enriched genetically modified crops and anmimals to alloviate food insecurity which is a common dilemma particularly in underdeveloped countries
The role of microbiology and biotechnology is very crucial for the growing public and global health needs because it has a great contribution to humans.
What is the application of biology to biotechnology?Biotechnology is defined as the use of biology to solve problems and make useful products with the help of microbes. The most prominent approach is genetic engineering which enables scientists to alter and modify an organism's DNA. Microbiology has proved to be one of the most significant fields in biology, making it possible to define microorganisms that cause diseases, discover treatments for different diseases, and use microbes for industrial applications, etc.
Each human body hosts about ten microorganisms for every human cell, and these microbes help in digestion, produce vitamin K, enhance the development of the immune system, and remove harmful chemicals. Microbes are essential to making many foods such as bread, cheese, wine etc.
So we can conclude that the application of biology especially the role of microbiology and biotechnology leads to the welfare of humans.
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please help answer the 3 questions
1. The flattened form of objects like leaves. inside the respiratory system, the alveoli. the gastrointestinal system's villi. 2. While turtles have specialized excretory openings, fish have gills.
What modification is necessary for a successful gas exchange, one example?Alveoli modifications:
Moisture-filled walls: Gases dissolve in the moisture, which makes it easier for them to cross the gas exchange surface. Gases can travel through permeable walls. large blood supply, ensuring that blood rich in carbon dioxide is transported to the lungs and blood rich in oxygen is removed from the lungs.
Compare the Australian Fitzroy River turtle's gas exchange system to that of fish.Gills are found in fish, while specialized excretory openings are seen in turtles. These gaseous exchange systems have a huge surface area, a plentiful blood supply, and are ventilated by water movement for a sharp gradient in concentration. The main distinction is where the gas exchange surface is located.
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Please help need this like rn please god help me
Answer:
a) Land plants and tiny water plants
b) frog, fox and heron
c) In the image
d) Water fleas an diving beetles
e) Heron and perch
f) Insects and diving beetles will overpopulate (more so insects) and some foxes and herons might die because of a decrease in food availability.
Why are humans able to live in a variety of places on Earth?
Answer:
Early humans used to move from place to place to those days. Reason are given below.
Explanation:
200,000 years ago from the present, modern humans have already started to roam around the planet. They learned everything around them. They risked their lives to become more modern. They invented weapons, tools, hunting, agriculture, communication methodologies and more in order to survive.
During the early ages, humans are the most sensitive species on the planet. They have just evolved to be a six sensed animal and have no idea about the planet. However they have learned to survive on the planet by hunting other animals and eating them. Their life cycle seemed to be stuck with some sort of danger all time. So they wanted to move from place to place in order to survive.
When they started to move across continents, geographical location and climate have influenced their behavior and life style. Humans have started to multiply within some suitable geographical locations. They started to improve their life style by adapting the location.
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5. A woman has blood Type O, her baby has blood Type A: Is it possible that a man who
has the blood Type AB could be the father? Show the Punnett Square and explain.
Answer:
Yes possible
Explanation:
Father AB mother O
Gametes A and B from father O and O from mother so by crossing son has 50% chance of A and 50% of B
Immune System disorder discussion
Answer:
Immune system disorders cause abnormally low activity or over activity of the immune system. In cases of immune system overactivity, the body attacks and damages its own tissues (autoimmune diseases). Immune deficiency diseases decrease the body's ability to fight invaders, causing vulnerability to infections.
What is a caldera?
A: an island formed by hot magma erupting under water and emerging from below the surface of the water
B: a "recycling center" of the Earth where a dense tectonic plate slides underneath a less dense plate
C: a long, thin, deep valley formed at a divergent plate boundary
D: a deep hole in the ground formed from the fall of a volcanic mountain
Next week produces a heat wave in Prince George's County. Most scientists would say:
A. Global warming is the cause
B. Human activity is the cause
C. Local temperatures over one week tell us more about weather than climate
D. Our climate is getting warmer
Answer:
A. Global warming is the cause
Explanation:
Our climate is getting warmer due to production of heat wave because the heat wave has high temperature which increases the temperature of the surrounding environment. Researchers found that as global temperatures increase, heat waves will become more frequent and the time between them will become shorter and we know that global temperature increase due to global warming so we can say that global warming is the cause of more heat wave.