Compare and contrast a pine cone and a flower in terms of structure and function.
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The original cell theory has been expanded upon since it was first developed to include further additions due to advances in research on the cell. Which statements were not in the original cell theory, but are further explained by the modern cell theory? Check all that apply.
All cells are similar in structure and function.
Cell contains hereditary information that is passed from cell to cell during cell division.
Living cells can be created from dead cells.
All cells perform similar metabolic activities.
Answers
Answer:
The Correct answer is
B. Cell contains hereditary information that is passed from cell to cell during cell division.
D. All cells perform similar metabolic activities.
Explanation:
Hope this helps!!!!!
The statements 'the cell contains hereditary information that is passed during cell division' and 'all cells perform similar metabolic activities' were NOT in the original cell theory.
The cell theory is a universally accepted biological theory initially developed by Matthias Schleiden and Theodor Schwann (1839).The original statements of the cell theory include:
The cell is the basic structural and functional unit of all organisms.All life forms are composed of cells.All cells derive from preexisting cells, which means that the origin of all organisms can be traced to a primitive ancestral cell.In conclusion, the statements 'the cell contains hereditary information that is passed during cell division' and 'all cells perform similar metabolic activities' were NOT in the original cell theory.
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can subjects shift their attention to areas of the visual field peripheral to the fixation point without moving their eyes?
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Yes, subjects can shift their attention to areas of the visual field peripheral to the fixation point without moving their eyes.
This is known as covert attention and involves directing attention without the need for eye movements. The ability to direct attention without moving the eyes is essential for efficient visual processing, especially in situations where moving the eyes would be inefficient or impractical. Covert attention is thought to be guided by top-down cognitive factors such as task demands and goals as well as bottom-up sensory factors such as salient stimuli or sudden changes in the environment. The neural basis of covert attention involves a network of brain regions including the frontal cortex, parietal cortex, and superior colliculus.Subjects can shift their attention to areas of the visual field peripheral to the fixation point without moving their eyes. Covert attention has been studied extensively using behavioral paradigms such as the Posner cueing task and neuroimaging techniques such as fMRI and EEG. Overall, the ability to shift attention without moving the eyes is an important aspect of visual processing and is essential for efficient visual perception and cognition.
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To make a guess based on what you know or think
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Explanation:
An inference is an educated guess. We learn about some things by experiencing them first-hand, but we gain other knowledge by inference — the process of inferring things based on what is already known.
Which statement describes the relationship between the attractive forces among particles and the boiling point of a substance? ((SOMEONE HELP!!!))
A.) There is neither a correlation nor a causal relationship.
B.) There is a causal relationship, but not a correlation.
C.) There is both a correlation and a causal relationship.
D.) There is a correlation, but not a causal relationship
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Answer:
There is both a correlation and a causal relationship.
Explanation:
What is the answer? Please help.
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Answer: A is the answer. Note that there are different polypeptide structures.
Make a claim about two ways that fisheries are important and support your claims with specific evidence.
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Answer:
Seafood plays an essential role in feeding the world's growing population. Healthy fish populations lead to healthy oceans and it's our responsibility to be a part of the solution. The resilience of our marine ecosystems and coastal communities depend on sustainable fisheries.
Answer:
fishiries are importnant as they are food for us we have many uses of that for eg: capturing rare species and then sell them, make them your pet etc.
Explanation:
a muscle end attached to a less movable or relatively fixed part is called the
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A muscle end attached to a less movable or relatively fixed part is called the origin.
Yes, that is correct. In anatomy, the term "origin" refers to the attachment of a muscle to the bone that remains relatively fixed or stationary during movement. The origin is typically located proximally (closer to the center of the body) compared to the muscle's insertion, which is the attachment point that moves during muscle contraction. The origin serves as a point of stability for the muscle to exert force and produce movement at the insertion.
Anatomy is the branch of biology that deals with the structure of living organisms, including humans. It involves the study of the physical structure and organization of living things, ranging from the smallest components of cells to the largest organs and systems in the body.
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What effect does excessive silt or sand have on an aquatic ecosystem?
a. improved levels of dissolved oxygen
b. murky water blocks sunlight and affects plant growth.
c. none
d. increased plant growth
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Excessive silt or sand can have a negative effect on an aquatic ecosystem. One of the main effects is that it can cause the water to become murky, which can block sunlight and affect plant growth. Sunlight is a key factor in the growth of aquatic plants, as it is necessary for photosynthesis. If the water becomes too murky, it can reduce the amount of sunlight that reaches the plants, which can inhibit their growth.
Silt and sand can also disrupt the balance of an aquatic ecosystem by altering the habitat for plants and animals. For example, if there is too much silt or sand in the water, it can make it more difficult for plants to take root and grow. This can have a ripple effect on the entire ecosystem, as plants are a key component of the food chain.
In addition, silt and sand can reduce the levels of dissolved oxygen in the water. Dissolved oxygen is necessary for the survival of many aquatic organisms, and if the levels become too low, it can lead to a decline in the population of these organisms.
Overall, excessive silt or sand can have a negative effect on an aquatic ecosystem by blocking sunlight, disrupting the habitat for plants and animals, and reducing the levels of dissolved oxygen in the water. Therefore, the correct answer is b. "murky water blocks sunlight and affects plant growth."
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A firm has $820 in inventory, $3,200 in fixed assets, $1,210 in accounts receivable, $890 in accounts payable, and $360 in cash. What is the amount of the net working capital?
a. $4,700
b. $5,590
c. $3,600
d. $2,390
e. $1,500
Answers
The net working capital for the firm is $1,500, calculated by subtracting current liabilities from current assets, the correct option is (e).
To calculate the net working capital, you need to subtract the current liabilities from the current assets.
In a company's financial statements, the formula for calculating current assets can be expressed as the sum of inventory, accounts receivable, and cash.
Current Assets = Inventory + Accounts Receivable + Cash
Current Liabilities = Accounts Payable
Using the given values:
Current Assets = $820 (Inventory) + $1,210 (Accounts Receivable) + $360 (Cash)
= $2,390
Current Liabilities = $890 (Accounts Payable)
The formula to calculate Net Working Capital is derived by subtracting Current Liabilities from Current Assets.
Net Working Capital = Current Assets - Current Liabilities
Net Working Capital = $2,390 - $890
= $1,500
Therefore, the amount of net working capital is $1,500.
Hence, the correct option is (e).
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of
5. Which cannot fix atmospheric nitrogen in the soil?
b) Clostridium c) Azotobacter
a) Rhizobium
d) Penicillin
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Answer:
The atmospheric nitrogen cannot be taken directly by plants and animals. Certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert into compounds of nitrogen.
hope it helped
m ) M How many milliliters of 0.750 M H2PO4 are required to react with 250. mL of 0.150 M Ba(OH)2 if the products are barium phosphate and water?
Answers
The volume of phosphoric acid is mathematically given as
X= 75 mL of H3PO4
What is the volume of H2PO4 required?Question Parameters:
Milliliters of 0.750 M H2PO4 are required to react with 250. mL of 0.150 M Ba(OH)2
Generally, the equation for the banlanced Chemical Reaction is mathematically given as
2 H3PO4 + 3 Ba(OH)2 ------> Ba3(PO4)2 + 6H2O
Therefore
The volume of phosphoric acid=\(\frac{3*2*250*150*3*1}{1*2*750}\)
The volume of phosphoric acid=0.075 L of H3PO4
In conclusion, the volume of H2PO4 in mL is
The volume of phosphoric acid=75 mL of H3PO4
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Using the diagram above, answer the following questions: 6. True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false. 7. True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false. 8. Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected? 9. Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected. 10. Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.
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in bases you find hydroxyl ions, which have ______________ electrons.
Answers
Answer:
hydroxyl ions have 7 electrons :D
Explanation:
because they are around the electronegative oxygen atom
Epistasis is where one gene hides the effects of another gene. In labrador dogs, the dominant allele (E) determines whether the skin will have pigment. The dominant allele (B) determines how dark it is (color). Match the color dog with the correct genotype. Black lab Chocolate (brown) lab Yellow lab
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Complete question:
I failed in finding the complete question. However, in the answer and explanation boxes, I will determine the genotypes of labrador for each color.
Answer:
For black-haired dogs: BBEE, BBEe, BbEE, BbEeFor brown (chocolate) color: bbEE, bbEeFor Yellow color: BBee, Bbee, bbee.Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
UUU-CAG-GUA-UAC
15. What is the sequence of amino acids that will be translated from the mRNA above?
O phenylalanine-histidine-valine-tyrosine
Ophenylalanine-stop
Ophenylalanine-histidine-stop
O phenylalanine-glutamine-valine-tyrosine
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What is the correct measurement?
A.36.5
B.33.3
C.32
D.37
Answers
Answer:
the answer is A
Explanation:
Answer:
A 36.5
Explanation:
The little marks go up by one and it only went up one tick past the thirty five and did not past the second tick
Please help!! if you don't know the answer then don't answer!! will report your answer if it is childish! dead serious...
some scientists claim that humans are responsible for the increase of co2 in the atmosphere. evaluate which system the increased co2 levels are likely to affect, and predict the effects of increasing atmospheric co2 on natural and agricultural ecosystems.
grading:
* the student explains the result of elevated co2 levels on the process it would affect most, either cellular respiration or photosynthesis. (2 points)
* the student explains the possible effect of increasing atmospheric carbon dioxide on ecosystems. (2 points)
Answers
The increase of CO2 in the atmosphere is likely to affect the process of photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria use energy from sunlight to convert CO2 and water into glucose and oxygen.
Elevated levels of Carbon diaoxide can increase the rate of photosynthesis, leading to faster growth and increased biomass in plants. However, the long-term effects of increasing atmospheric CO2 on natural and agricultural ecosystems are complex and can have both positive and negative consequences. Positive effects include: Increased growth and productivity of crops and other plants, leading to higher yields and Increased water use efficiency in plants, which could lead to better crop growth in dry regions Negative effects include: Changes in the distribution and abundance of plant and animal species, Increased competition for resources among plants and animals changes in the timing of life cycle events (such as flowering and migration)Overall, the impacts of increasing atmospheric CO2 on natural and agricultural ecosystems are complex and multifaceted, and more research is needed to fully understand the potential consequences.
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A phylogenetic tree can be constructed for (1 point)
animals
plants.
animals and plants.
animals, plants, and bacteria.
Answers
Answer: Animals, plants, and bacteria.
Explanation: The phylogenetic tree is used to show similarities of organisms based on the genetics and possible shown features. Bacteria over time can evolve jus trike plants and animals, thus concluding that bacteria, plants, and animals can all be constructed on a phylogenetic tree.
Most molecular phylogenetic trees were initially used to estimate the relationships among the species represented by those sequences, hence option D is correct.
What is a phylogenetic tree?Today their uses have been expanded to include understanding the relationships among the sequences independently of their host species, allowing us to infer the functions of phylogenetic trees and define relationships between bacterial strains.
This can detect strains that are extremely closely linked to one another and show which bacterial strains have been transferred to whom during an outbreak.
Scientists can explain the similarities and differences between species and learn more about how species have developed by looking at phylogenetic trees.
Therefore, a phylogenetic tree can be constructed for animals, plants, and bacteria.
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18. Which two muscles run along the fibula?
Answers
Answer:
Extensor digitorum longus and Extensor hallucis longus
Explanation:
Jake made a pedigree to trace the traits of straight and curly hair in his family. A shaded circle or square in Jake's pedigree represents a person with straight hair. Is straight hair controlled by a dominant allele or a recessive allele? What led to you conclusion? How do you know that straight hair is not sex-linked?
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Straight hair is controlled by a recessive allele because the offspring of a parent with straight hair and a parent with curly hair will most likely have curly hair. The trait cannot be sex linked because both males and females express the straight hair phenotype in equal proportions.
If the offspring of a parent with straight hair and a parent with curly hair mostly have curly hair, it suggests that curly hair is the dominant trait, and straight hair is the recessive trait. This means that an individual with straight hair must inherit two copies of the recessive allele to express the trait.
Since both males and females express the straight hair phenotype in equal proportions, it suggests that the gene for straight hair is located on an autosome (a non-sex chromosome) rather than on a sex chromosome. If the trait was located on the X or Y chromosome, it would be sex-linked and expressed differently in males and females. Therefore, straight hair is most likely controlled by a recessive allele located on an autosome.
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--The complete question is, Jake made the following pedigree chart to trace the traits of strait and curly hair in his family. A shaded circle or square in Jake's pedigree represents a person with straight hair. Is straight hair controlled by a dominant allele or a recessive allele?
What led to your conclusion?
How do you know that straight hair is not sex-linked?--
why is energy needed for microtubules and actin filaments but not for intermediate filaments?
Answers
Hollow microtubules are present. Longer intermediate filaments are present. There are several different kinds of protein subunits that make up microtubules.
What use do microtubules serve?The parts of the cell skeleton that determine the form of a cell are microtubules, intermediate filaments, and microfilaments. Microtubules play a variety of roles in cell division and axon expansion in neurons as well as the formation of the mitotic spindle in dividing cells.
How do microtubules function in the cell wall?By controlling how cellulosic and non-cellulosic substances are arranged on the cell surface, plant cortical microfilaments, which form a highly organized array beneath the cell membrane, play crucial roles in defining cell shape and function.
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Which of the following are included as tools of biotechnology when using living cells and their components in different ways?
A.
working with cells, working with climate, working with molecules
B.
working with genes, working with breeders, working with proteins
C.
working with climate, working with breeders, working with molecules
D.
working with cells, working with proteins, and working with genes
PLEASE HELP! MARKING BRAINLIEST
Answers
Answer:
D. working with cells, working with proteins, and working with genes
Explanation:
Biotechnology is referred to as the application of genetic principles on living organisms in order to make useful products. Biotechnologist aims at studying the genetic composition of certain cells and manipulating it to make useful products.
According to this question, working with cells, working with proteins, and working with genes are included as tools of biotechnology when using living cells and their components in different ways.
For the following discussed RNA types, complete the missing information in the boxes below.
Some boxes have been filled in for you.
Amoeba sisters
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Answer: did u get the anwser cuz I need help on this too
Explanation:
Different RNA have different functions such as the mRNA is the linear form that codes for the polypeptide chain, rRNA is the ribosomal RNA and tRNA is the transfer RNA that carries the amino acid.
What are the functions of the different types of RNA?The RNAs, such as mRNA, tRNA, and rRNA, are synthesized in the nucleus and later come into the cytoplasm in the case of the eukaryotic cell, while the prokaryotes perform all the functions in the cytoplasm. The mRNA is formed by the process of transcription from the gene that carries the genetic information for the polypeptide chain synthesis. The tRNA transports the amino acids and reads the mRNA codons, which have a cloverleaf structure. The ribosomal RNA is made up of rRNA and proteins and takes part in translation.
Hence, mRNA is the linear form that codes for the polypeptide chain, rRNA is the ribosomal RNA, and tRNA is the transfer RNA that transports amino acids.
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In a topoisomerase reaction, the _____ is used as the first nucleophile and the _____ is used as the second nucleophile.
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Answer:
a. hydroxyle in tyrosine
b. 3' OH
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Some plants reproduce asexually through a process called vegetative propagation. If the climate in a tropical area suddenly becomes arid, what would happen to the plants that reproduced asexually?
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If the climate in a tropical area suddenly becomes arid, the plants that reproduce ase-xually would be at risk of drying out and dying.
This is because asexual reduplication doesn't involve the exchange of inheritable material, and so the shops aren't suitable to acclimate to the new environment and come more tolerant of the thirsty climate. Without the exchange of inheritable material, the shops can not evolve to come more resistant to extreme conditions.
As a result, the shops may struggle to survive in the new environment, and may ultimately die due to lack of water and nutrients.
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direct interaction between the c-terminus of the myosin light chain phosphatase targeting subunit and myosin phosphatase-rho interacting protein
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There is a direct interaction between the C-terminus of the myosin light chain phosphatase targeting subunit (MYPT1) and myosin phosphatase-Rho interacting protein (MPRIP).
MYPT1 is a regulatory subunit of myosin light chain phosphatase, an enzyme involved in the regulation of smooth muscle contraction.
MPRIP is a protein that interacts with MYPT1 and plays a role in the localization and activation of myosin phosphatase.
The direct interaction between the C-terminus of MYPT1 and MPRIP facilitates the recruitment and binding of myosin phosphatase to actin-myosin filaments, allowing for the dephosphorylation of myosin light chains and relaxation of smooth muscle.
This interaction is crucial for the proper functioning of myosin phosphatase and the regulation of smooth muscle contraction.
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summarize the defining features of prophase through telophase, pointing out those which you used in the microscope slide to determine the stage.
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To determine the stage of mitosis using a microscope slide, observe the organization of chromosomes, the state of the nuclear envelope, and the presence or absence of the nucleolus.
The stages of mitosis are Prophase where the chromatin condenses to chromosomes, and the nucleolus disappears. Then in metaphase the chromosomes align in straight line. In Anaphase the sister chromatids are pulled apart and the cell elongates. In telophase, the chromosomes reach the opposite poles.
The defining features of the stages of mitosis from prophase through telophase are as follows:
1. Prophase: Chromatin condenses into chromosomes, each consisting of two sister chromatids. The nucleolus disappears, and the nuclear envelope starts to break down. The mitotic spindle, consisting of microtubules, begins to form. Under a microscope, you can identify prophase by the visible condensed chromosomes and the disappearance of the nucleolus.
2. Metaphase: Chromosomes align at the metaphase plate (the equator of the cell) and spindle fibers attach to the centromeres of each chromosome. In a microscope slide, the key feature to identify metaphase is the straight line of chromosomes in the center of the cell.
3. Anaphase: Sister chromatids are pulled apart by the spindle fibers towards opposite poles of the cell. The cell begins to elongate. Anaphase can be identified under a microscope by observing the separated chromatids moving towards the poles and the elongation of the cell.
4. Telophase: The chromosomes reach the opposite poles of the cell, and the nuclear envelope starts to reform around them. The chromosomes uncoil and become less condensed, returning to chromatin. The nucleolus reappears, and the mitotic spindle disassembles. Telophase can be identified under a microscope by the presence of two distinct nuclei within a single cell and the reformation of the nuclear envelope.
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Which of the following is not caused by Mad Cow disease?
spongiform encephalopathy
eventual death
trembling, shaking, and staggering movements
solidified brains
Answers
Answer:
None
Explanation:
They are all symptoms or effects of the disease.
Why do
you think that organizing the Earth into levels is important?
Ready?
Answers
Knowledge about the different levels of biological organization will help you understand their relationship. The hierarchy is an important means for the understanding of biological laws. Through it, we can make informed decisions regarding how to manage our resources.
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Which of the following would change the allele frequencies of a population?
A)Lack of mutation in the DNA
B)Mating is random with no selection occurring
C)A population on an island remains isolated and no one leaves or moves on the island
D) All of the answer choices would change allele frequencies of a population.
Answers
Answer: option B.
B)Mating is random with no selection occurring
Explanation:
This will cause change in allele frequency because it's a genetic drift which is the change in the frequency gene variant that is common in a population due to random sampling or random mating. When this occur it lead to a change in percentage or incidence of gene variant in a population since there is random sampling without any selection.
Mating is random with no selection occurring, which would change the allele frequencies of a population.
What would increase the allele frequency in a population?Natural selection can drive microevolution, or a difference in allele frequencies over time, with fitness-increasing alleles becoming more common in the population over generations.
Thus, option"B" mating is random with no selection occurring.
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