Answer:
Selective breeding involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics. Humans have selectively bred plants and animals for thousands of years including: crop plants with better yields.
Explanation:
Hope that helps
Answer:ya
Explanation:
What are humans doing to the environment and resources that impact tigers and decreases their ability to survive and reproduce?
Answer:
fsfsdfsdfsdf
Explanation:
43. A client says they have a headache, what should the trainer do? A. Recommend they drink water, then stop the training session B. Give them Advil, then stop the training session C. Give them a prescription medication, then continue training session D. Give them Advil, then continue training session
Answer:
A .recommended they drink water then stop training session
Explanation:
Because the trainer can't just give out prescription medication. They don't know if the person has allergies and it can make the clients headache worse.
A. Recommend they drink water, then stop the training session
First thing first, drug abuse is not an option. Drug abuse includes self medication or taking drugs not prescribed by a medical practitioner. As a fitness trainer, ones job is not to prescribe drugs.
According to this question, if a client is experiencing headaches during a training session, the best alternative for the trainer is to recommend taking water to calm the client down, then put an hold to the training. The trainer is not qualified to prescribe any drug whatsoever.
Therefore, the trainer should recommend that a client with headache drink water, then stop the training session.
Polycomb group (PCG) gene mutants cause ectopic expression of Antennapedia (Antp) and other homeotic genes. The PCG protein encoded by the PgG gene has a domain that binds to methylated histone H3. This finding supports which of the following hypotheses?
a) that PCG mutants lack Antp mRNA compared to the wildtype
b) that PCG repress transcription by interacting with chromatin
c) that PCG binds to Antp genes and serves as a transcription activator
d) that PCG activates Antp genes in tissues
e) that PCG is allosteric activator of RNA polymerase II
Answer:
b) that PCG repress transcription by interacting with chromatin
Explanation:
The Polycomb-group (PcG) proteins are evolutionarily conserved proteins in all higher eukaryotes which are involved in establishing epigenetic silencing of developmental genes. In animals, the PcG proteins are well known to form complexes capable of silencing target developmental genes by modulating chromatin structure during embryo development. In Drosophila melanogaster, the Polycomb repressive complex 2 (PRC2) is known to catalyze the trimethylation of lysine 27 on histone H3 (i.e., H3K27me3), thereby silencing homeotic (Hox) developmental genes. The core of the Drosophila PRC2 complex is composed of Enhancer of zeste [E(z)], Suppressor of zeste 12 [Su(z)12], and Extra sex combs (Esc) proteins. The E(z) protein is a well-known histone methyltransferase that maintains the methylation status of Hox genes, thereby silencing their expression during embryo development.
Looking at the tabe below which two species are the least closely related?
Number of Amino Acid Differences between Species
Species 1 Species 2 Species 3 Species 4
74
7
Species 10
65
0
Species 274
29
13
29
0
81
Species 37
13
81
0
Species 4 65
Species 1 & 2
Species 1 & 3
Species 2&3
Species 3 & 4
Answer:
species are the least closely related?
Number of Amino Acid Differences between Species
Species 1 Species 2 Species 3 Species 4
74
This is a gastropod fossil from Triassic period. This type of fossil can be on the east boundary of the state of Missouri. It looks a lot like ______ we find on Earth today.
A) ferns
B) fish
C) snails
D) starfish
Answer:
C . snails
Explanation:
This shell looks like a snail shell
1. the north polar constellation can be seen in the southern hemisphere.
true or false
2. the south polar constellation can be seen in the northern hemisphere.
true or false
I believe they are both false><
1. the north polar constellation can be seen in the southern hemisphere.
"As viewed from the North Pole, all fully visible constellations north of the celestial equator are circumpolar, and likewise for constellations south of the celestial equator as viewed from the South Pole."
2. the south polar constellation can be seen in the northern hemisphere.
"The southern constellations Carina, Centaurus, and Crux are found circling the south celestial pole and can be seen from southern latitudes at any time of year while remaining invisible for observers in most northern locations."
Hope it helps
2. How does temperature change in the troposphere?
A. It increases with height.
B. It decreases with height.
C. It increases and then decreases with height.
Answer:
OPTION-A IS CORRECT
IT INCREASES WITH HEIGHT
Explanation:
PLEASE MARK ME BRAINLIEST
Cuáles son las bases nitrogenadas que componen el ARN
Answer:
aquí Tres de las cuatro bases nitrogenadas que componen el ARN - adenina (A), citosina (C) y guanina (G) - también se encuentran en el ADN. En el ARN, sin embargo, una base llamada uracilo (U) reemplaza a la timina (T) como nucleótido complementario de la adenina (Figura 3).
Explanation:
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which vitamin helps in DNA Synthesis?
Answer:
Vitamin B12
Explanation:
Big cats like tigers and other carnivores are often the top predators in an ecosystem. To which trophic level do they most likely belong?
primary producers
decomposers
tertiary consumers
primary consumers
Big cats like tigers and other carnivores are often the to predators in an ecosystem. The trophic level do they most likely belong to is tertiary consumers. Thus, the correct option will be C.
What are Tertiary consumers?Tertiary consumers can be referred to as the carnivore at the topmost level in a food chain which feeds on other carnivores in nature, which is an animal that feeds only on secondary consumers.
Tertiary consumers are those organisms that eats the secondary consumers (large predators) in nature. For example, owl species that eat snakes.
Big cats like tigers and other carnivores are often the to predators in an ecosystem. The trophic level do they most likely belong to is tertiary consumers.
Therefore, the correct option will be C.
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According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the engulfed cell alive, rather than digesting it as food select all that apply
Answer:
It provides ATP.
Explanation:
It is adaptive for the larger host cell to keep the engulfed cell alive, instead of digesting it as food because the engulfed cell provides energy in the form of adenosine triphosphate (ATP) to the host cell. The larger host cell is able to survive in anaerobic conditions with the help of engulfed cell alive so that's why we can conclude that the larger host cell keep the engulfed cell alive instead of killing it and used as a food source.
HELP ASAP
Which of the following is an example of homeostasis?
Q. During a time of high stress, Justin's heart races, his muscles tense, and he feels
sweat dripping down his forehead.
R. Sick with the flu, Alison's body temperature rises to fever levels.
S. Boris doesn't drink very much water one day. To compensate his kidneys remove less
fluid from his blood, and produce less urine than normal.
T. As Grace races up the ten flights of stairs to her apartment, the muscle cells in her
legs produce excess lactic acid, causing a burning sensation in her legs.
Answer:
The correct answer is Boris doesn't drink very much water one day. To compensate, his kidneys remove less fluid from his blood and produce less urine than normal
Hope this helps :)
Explanation:
5 importance of animal protein in ration
Answer:
Proteins are important building blocks of animal tissues. The majority of animal tissues and organs need proteins and other elements as their building blocks. Therefore, proteins in animal nutrition are needed for the growth and regeneration of tissues.
Explanation:
What is the pressure of a gas if the volume is 96.2 L, the temperature is 25⁰C and there are 1.24 moles?
Define the five systems. Be sure to include enough information to distinguish each system from the others.
The lithosphere is largely made up of soil, minerals, and rocks—essentially the earth’s crust. A sister to the lithosphere, the hydrosphere contains the liquid parts of the earth. The cryosphere consists of all frozen water on the earth. Frozen water makes up about 75 percent of the earth’s fresh water. For the atmosphere, the system changes from water to air. The atmosphere is the thin layer of gasses surrounding the planet. The biosphere includes all living organisms, from the bottoms of the oceans to the upper reaches of the atmosphere.
Answer:
what they said ^
Explanation:
"The lithosphere is largely made up of soil, minerals, and rocks—essentially the earth’s crust. A sister to the lithosphere, the hydrosphere contains the liquid parts of the earth. The cryosphere consists of all frozen water on the earth. Frozen water makes up about 75 percent of the earth’s fresh water. For the atmosphere, the system changes from water to air. The atmosphere is the thin layer of gasses surrounding the planet. The biosphere includes all living organisms, from the bottoms of the oceans to the upper reaches of the atmosphere."
what is the function of myonemes in the euglena
Myoneme FUNCTION in Eugene viridis as the contractile vacuole in the organism. In order words, it helps in the excretion of substance out of the body of the organism
MyonemeA myoneme is a contractile structure found in some eukaryotic organisms like euglena too.
The myoneme consists of a series of protein filaments that shorten rapidly upon exposure to calcium.
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25 points please help !!!!!
que es la fricción help me
Answer:
La fricción, fuerza de roce o fuerza de rozamiento es una fuerza existente entre dos superficies que se encuentren en contacto, y que se opone al movimiento, o sea, tiene dirección contraria al movimiento.
If you do not know the answer than do not answer. You don’t have to answer all of the questions just answer the ones you know. Will give brainliest if you help.
Answer:
a,f,d,i,c
Explanation:
The arrows in the image define the equation as( )
A+B <----> C+D
synthesis
reversible
decomposition
exchange
Explain the advantages to a plant of having its cell membranes surrounded by cell walls
Answer:
Advantage of cell walls
It protect and support the cell .
To give difinite shape for the cell.
Having cell walls surrounding cell membranes provides several advantages to plants, including structural support, protection against pathogens, regulation of water balance, and prevention of cell rupture.
The cell wall is a rigid structure located outside the cell membrane in plant cells. It is composed primarily of cellulose, a complex carbohydrate. Here are the advantages of having cell walls:
Structural Support: Cell walls provide mechanical support to plant cells and help maintain the overall shape and structure of the plant. They allow plants to stand upright and withstand environmental forces such as wind or gravity. The cell walls of adjacent plant cells are interconnected, forming a strong network that provides stability to the plant as a whole.
Pathogen Protection: The cell wall acts as a physical barrier against pathogens such as bacteria and fungi. It prevents the entry of pathogens into the plant cells, reducing the risk of infection. Additionally, the cell wall can contain antimicrobial compounds and other defense molecules that provide further protection against pathogens.
Water Regulation: The cell wall plays a crucial role in regulating water balance within plant cells. It helps maintain turgor pressure, which is essential for cell expansion and overall plant growth. The cell wall allows water to enter and exit the cell in a controlled manner, preventing excessive water uptake or loss.
Cell Rupture Prevention: The rigid cell wall helps prevent cell rupture or bursting when the internal pressure within the cell increases. It provides strength and stability to the cell, allowing it to withstand internal pressure changes without bursting.
Overall, the presence of cell walls in plant cells offers significant advantages in terms of structural support, protection against pathogens, regulation of water balance, and prevention of cell rupture. These advantages contribute to the overall health, growth, and survival of plants in diverse environmental conditions.
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Over time, how will the distribution of matter in a galaxy cluster change?
Answer:
Galaxies are in clusters and over time those clusters will join and make more, and soon they will part into their own and probably join a different one. That may sound a little confusing to some but it's quite simple. My mom explained it to me like friends, you meet some people and become friends and then sometimes you will drift away and make new friends.
Galaxies are in clusters and over time those clusters will join and make more, and soon they will part into their own and probably join a different one. That may sound a little confusing to some but it's quite simple.
What is solar system?The solar system is defined as a system which is gravitationaly bound of the sun and orbit is occupied by object. The formation of solar system takes place 4.6 billion years ago and this happens due to gravitational collapse of a giant molecular cloud.
The most and wast majority of the systems mass in the sun and other part of mass contained by the planet jupiter. The solar system contain total 8 planet in which 146 moon, asteroid and space rocks, a number of dwarf planet such as pluto and Italian astronomer Galileo Galilei discovers solar system.
Therefore, Galaxies are in clusters and over time those clusters will join and make more, and soon they will part into their own and probably join a different one. That may sound a little confusing to some but it's quite simple.
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Explain how privatizing endangered species (private ownership) will save them from extinction. Give an example. (approximately 5 sentences) Also, explain why prohibiting trade of endangered species will accelerate their rate of extinction. Be sure to discuss the tragedy of the commons, and the prisoner's dilemma in your answer. (About 8sentences)
Answer: The privatization of endangered species will reduce their chances of extinction.
Explanation:
The endangered species are those species which are low in numbers, their population will reduce or extinct in the near future. The privatization of these animals will protect them from dangers of trafficking, predation, habitat loss, and death due to natural disaster. Animals like elephant, monkey, tiger, lion are privatized to protect their extinction.
The trade of hides, teeth, ivory, flesh, horn, and other parts of the endangered animals will accelerate the rate of extinction. Prohibition of trade will allow the agents of trafficking to get chances of killing and stealing animal parts to a large number.
The tragedy of commons suggests that people neglect the well being of the society for personal gain. Those people who exploit the resources from endangered species causing harm to the nature as they are responsible for reducing biodiversity.
Extinction is defined as the elimination of species due to natural or human-made factors. The species are necessary to preserve the ecosystem and biodiversity.
The private ownership of endangered species (species on the verge of extinction)can save the species from extinction. Private ownership will reduce their chances of being hunted, exported, traded, predation, loss of habitat, and death due to natural calamities.
The animals like elephants, monkeys, crocodiles, snakes, and lions are categorized in private ownership to prevent their extinction.
The ban on the trading of endangered species can or might save the species from extinction, but it can also backfire leading to market booms. The prohibition will allow the traders to follow animal trafficking and stealing, which can result in an increased rate of extinction.
The killing of animals for ivory, fur, skin, teeth, and flesh and selling them in the black market will lead to an increase in their rate of extinction.
The tragedy of commons refers to the negligence of the social surrounding for personal gains. The people who exploit resources and cause harm to endangered species are indirectly harming nature, and therefore responsible for the reduction in biodiversity.
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Hard corals have a symbiotic relationship with species of microalgae that give the corals their color and provide up to 95% of the corals' energy needs by photosynthesis. Corals get the rest of their food by consuming plankton. The microalgae are damaged by changes in water temperature 2-3C lasting five weeks or more, causing a phenomenon called coral bleaching. What will most likely be the result of increased global temperature on the diversity of hard coral species?
Question 1 options:
The hard corals will make all of their own food.
The rate of photosynthesis in hard corals will increase.
The number of different hard coral species will decrease.
The hard corals will migrate to warmer waters.
Answer:
The hard corals will make all of their own food
Explanation:
your welcome...
The most likely result with increased global temperature would be ; ( A )
The hard corals will make their own food
Given that the relationship between the corals and the microalgae is symbiotic and not parasitic therefore when the microalgae are damaged the hard corals will most likely look for an alternative food source in order to continue surviving since they do not rely 100% on the plankton for their food. which is The hard corals will be able to make their own food by capturing preys like critters.
Hence we can conclude that the most likely result with increased global temperature would be The hard corals will make their own food
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Consider this microscopic image of bacteria.
Rod-shaped bacteria is shown.
Based on its shape, what is most likely the form of this bacteria?
coccus
staphus
bacillus
spirill
Answer:
c
Explanation:
edg
Allele frequencies for a particular trait are shown over five generations for a population of sexually reproducing organisms.
According to the frequency changes over the generations, which hypotheses can be supported? Select ALL that apply.
Answer:
The answer is A,B and C
Explanation:
The correct options are A, B and D. The frequency of an allele in a population is referred to as its allele frequency.
What is allele frequency?It is calculated by dividing the number of gene copies by the number of times the allele occurs in the population.
Additionally, it is feasible to determine genotype frequencies (the percentage of people who share a particular genotype) and phenotype frequencies (the percentage of people who share a particular phenotype).
Different from genotype or phenotypic frequency is allele frequency. Calculating genotype and phenotypic frequencies is also useful for studying how populations change, although they are not the same as allele frequency.
Therefore, The correct options are A, B and D. The frequency of an allele in a population is referred to as its allele frequency.
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If one parent has Type A blood and the other has type B, but all four types are represented among the offspring, what are the genotypes of the parents?
If both parents are blood type A but ¾ of their children are type A and ¼ of the children are type O, what are the parent's genotypes?
What genotypes must the parents be if one has type AB blood and the other has type B, but their children are ¼ A, ¼ AB and ½ type B?
Answer:
heterozygous A father and heterozygous B mother
Explanation:
Why do males express certain sex-linked traits that females don't?
Answer: A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.
Explanation:
Please transcribe the following strand of DNA: TACATTCGAGGCATT*
Answer:
Explanation:
DNA strand:
ATGTAAGCTCCGTAA
I hope this makes sense on how to transcribe a DNA strand. At first, it may seem hard on how to do this but if you practice transcribing a strand you will fully understand it. To remember what goes with what it is that adenine is pair with thymine while guanine is pair with cytosine. I hope this makes sense and I wish you the best in your science class.
Which is the correct path of blood flow?
O Body
— Right atrium Right ventricle - Lungs – Left atrium Left ventricle - Body
O Body – Left atrium - Left ventricle Lungs - Right atrium -Right ventricle - Body
O Body – Right ventricle – Right atrium Lungs - Left ventricle Left atrium - Body
O Body - Left ventricle - Lett atrium — Lungs – Right ventricle Right atrium — Body
Answer:
Body
— Right atrium Right ventricle - Lungs – Left atrium Left ventricle -
Explanation: