Answers
Answer:
01. the continued existence of organisms that are best adapted to their environment, with the extinction of others, as a concept in the Darwinian theory of evolution.
02. It shrinks as species begin fighting for resources.
03. The animal will experience a lack of growth.
04. Level 1: Plants and algae make their own food and are called producers. Level 2: Herbivores eat plants and are called primary consumers. Level 3: Carnivores that eat herbivores are called secondary consumers. Level 4: Carnivores that eat other carnivores are called tertiary consumers.
Explanation:
Related Questions
Carbon compounds move from plants to animals via the process of _____.
Answers
Answer:
photosynthesis
Explanation:
Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
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Answer:
ingestion (eating)
Explain the advantages to a plant of having its cell membranes surrounded by cell walls
Answers
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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Enhancerless GFP reporter constructs used in research conducted in mice contain a generic mouse gene promoter (TATA box) followed by a transcription start site and then a GFP gene cDNA. When such enhancerless reporter gene constructs are integrated into random locations in the mouse genome, about 10% of the time, high levels of tissue-specific GFP expression are detected, even though the reporter gene construct itself has no enhancer. How is this possible
Answers
Answer:
the reporter gene can randomly insert near to an enhancer sequence which can induce its expression
Explanation
Enhancers are genetic sequences capable of activating gene expression by binding to specific proteins (e.g., transcription factors). Enhancers can regulate the expression of nearby genes located thousands of nucleotides away, i.e., over several kilobases away. In the human genome, it is well known that enhancers are scattered across the 98% of the genome. In this case, it is expected that the reporter GFP gene construct is randomly inserted near an enhancer sequence (a 10% chance of insertion), thereby being regulated by that enhancer.
The process of making the RNA from the DNA with the help of the transcriptase enzyme. This process is called transcription.
These things are followed required for transcription:-
DNARNA polymeraseSigma factorRho factorThe reporter gene can randomly insert near to an enhancer sequence which can induce its expression.
Enhancers are genetic sequences capable of activating gene expression by binding to specific proteins (e.g., transcription factors). Enhancers can regulate the expression of nearby genes located thousands of nucleotides away, i.e., over several kilobases away. In the human genome, it is well known that enhancers are scattered across 98% of the genome.
In this case, it is expected that the reporter GFP gene construct is randomly inserted near an enhancer sequence (a 10% chance of insertion), thereby being regulated by that enhancer.
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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
Answers
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.
Over time, how will the distribution of matter in a galaxy cluster change?
Answers
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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PLS SOMEONE DRAW ME Punnett square FOR THIS ASAP,
If two of the above offspring are mated, show the results of this cross in the Punnett square, and state the possible genotypes and phenotypes.
Answers
Answer:
please send the above offspring so I can help
Which agent is most likely the cause of chemical weathering to the tombstones in the cemetery? a)acid precipitation b)oxidation c)gravity
Answers
In a swimming pool or lake, the water is a
liquid until the water temperature gets
down to 0 C or 32. F. Water in pools
stays liquid during Las Vegas winters,
with just a bit of ice forming if it gets really cold overnight. Even when it is
chilly in January and February (usually 15° C or 60° F), water stays liquid.
Then, when our area's temperature gets really hot in the summer (usually
about 40° C or 100. F), the water in the pool is still a liquid. It would have
to be 100. C or 212. F for the water in the pool to boil! Those
temperatures have never happened on Earth.
Remember, though, that water does not have to boil to turn to a gas.
Some of the water evaporates at all temperatures. Water temperature is a
measure of the average kinetic energy of its molecules. Some molecules
have more kinetic energy than others. The molecules that have enough
kinetic energy to break the bonds with other molecules can leave the
liquid and move off into the air. That is why you have to keep filling up the
swimming pool, even though it is not boiling.
Why does water stay liquid over a large range of temperatures? Hint:
Think about molecular structure.
Answers
Define lytic and lysogenic infections
Answers
Answer:
lytic involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. lysogenic involves the incorporation of the viral genome into the host cell genome, infecting it from within.
Explanation:
Answer:
lysogenic infections are when the DNA is only replicated and lytic infections are when the DNA is multiplied and proteins are able to form
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
Answers
Explanation:
DECOMPOSERS break down dead organic matter.
PRIMARY PRODUCERS produce their own food. For example, plants make their own food from the sun during photosynthesis
PRIMARY CONSUMERS are those who eat other living things like PLANTS. Primary consumers are herbivores.
THE ANSWER IS:
Tertiary Consumers
Top predators that are carnivores and are large animals. Also called as A p e x Predators.
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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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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)
Answers
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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If a nucleotide is removed from a gene, the order of nucleotides will shift, resulting in new 1. _______ being coded for. These will combine to form a different 2._______ than what the 3._______ originally coded for.
Answers
Answer:
Amino acid; protein; gene.
Explanation:
Genomics refers to the scientific study of genes (DNA) found in living organisms such as humans and animals.
A gene can be defined as a complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Simply stated, a sequence of biomolecules which are responsible for coded genetic instructions in all living organisms is known as nucleotides.
Basically, nucleotide comprises of the following parts;
1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.
2. A phosphate group.
3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.
Furthermore, the two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;
I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.
II. Phosphate: this is the structural backbone that provides support to DNA.
Additionally, the proteins which are mainly synthesized based on the genetic instruction codes in deoxyribonucleic acid (DNA) determines the trait of living organisms.
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Hence, when you remove a nucleotide from a gene, the order of nucleotides shifts and as such resulting in new amino acid being coded for. These new amino acid will combine to form a different protein than what the gene was originally coded for.
Define the five systems. Be sure to include enough information to distinguish each system from the others.
Answers
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."
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Answers
Answer:
a,f,d,i,c
Explanation:
Cuáles son las bases nitrogenadas que componen el ARN
Answers
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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5. An insect population grows exponentially until an early winter freeze kills almost all the insects the next spring population
grows exponentially again this type of population growth is known as
A. rolling curve.
B. boom and bust.
O C. population boom.
D. exploding population.
Answers
Answer:
The answer to this question is B
similarity and one difference between water and wind dispersed seeds.
Answers
Answer:
lights it can be dispersed by winds s compared by heavy seeds which can be dispersed buy water.
Explanation:
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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.
Answers
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:
The breeding of organisms over many generations in order to achieve a desirable phenotype?
Answers
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:
If a drug was administered that would impede the binding of NAD+ to electrons what steps of cellular respiration would this substance affect
Answers
Answer:
The correct answer is - not getting all NAD+ so burning more ATP to make up for the energy loss.
Explanation:
If the drug was administered and it would cause impedetion of the binding of NAD+ to electrons which causes decrease availability of the NAD+ that leads to less energy formation due to the use up more ATPs in the process of cellular respiration.
If NADH couldn't be formed as NAD+ will not binding, the cells will lose out on ATP produced. It will lead to weight loss due to burning out more ATP to make up for the energy loss.
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
Answers
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.
What are humans doing to the environment and resources that impact tigers and decreases their ability to survive and reproduce?
Answers
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
Answers
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.
The three main constituent minerals of granite stones are feldspar, mica, and quartz. The textures of different types of
granite stones are shown in the picture.
Based on the textures, it can be said that
A)
the proportion of mica in all the forms of granite is fixed.
B)
the proportion of quartz in all the forms of granite is fixed.
the three minerals vary in proportion in each form of granite.
D)
the three minerals are in the same proportion in each form of granite.
Answers
Answer:
Option C
Explanation:
Granite is composed of coarse-grained quartz and feldspars in varying proportions and due to the varying proportions of these two constituent materials, the texture of granite varies as shown in the image.
Thus, option C is correct
Options A and B and D are incorrect because the constituent material of granite is not fixed. It varies from from place to the other.
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.
Answers
Answer:
OPTION-A IS CORRECT
IT INCREASES WITH HEIGHT
Explanation:
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which vitamin helps in DNA Synthesis?
Answers
Answer:
Vitamin B12
Explanation:
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A mutation occurs during protein synthesis. How will the protein produced be affected?
A) since the mutation causes a new code for a better amino acid, the protein will still function normally.
B) since the mutation causes a new code for the same amino acid, the protein will function normally.
C) since the mutation caused a new code for a better amino acid, the protein will be more powerful when performing its function.
D) since the mutation causes a new code for the same amino acid, the protein will be more powerful while performing its function.
Answers
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
Answers
Answer:
species are the least closely related?
Number of Amino Acid Differences between Species
Species 1 Species 2 Species 3 Species 4
74
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.
Answers
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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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
Answers
Answer:
Body
— Right atrium Right ventricle - Lungs – Left atrium Left ventricle -
Explanation: