Answer:
over hundreds of years
Explanation:
this is because a shorter time frame can allow a short environmental change to take place. This is as a result of the understanding that hundreds of years is a shorter time frame in which short term environmental changes can take place compared to thousands of years
The organelle involved in breaking down other organelles that have outlived their usefulness is the.
The digestive system of the cell, or lysosomes, is responsible for breaking down material taken up from the outside as well as old cell parts.
The lysosome is an organelle that houses digestive enzymes and serves as an animal cell's organelle recycling facility. In order for their molecules to be reused, it disassembles outdated and pointless structures.
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ESPS are caued by the movement of what ion?
a. Na out of the cell
b. Na into the cell
c. K into the cell
d. Na , K into the cell
When sodium channels open in response to a stimulus, an excitatory postsynaptic potential (EPSP) takes place. As a result of the electrochemical gradient, sodium floods the cell.
Which ions result in an EPSP?Excitatory postsynaptic potentials (EPSPs) are connected to transmitter-induced increases in the synaptic membrane's Na+ and K+ conductance, which cause the membrane to depolarize and allow for the net entry of positive charge carried by Na+.
How do EPSP and IPSP ions work?EPSP: The passage of glutamate or aspartate ions causes EPSP to be produced. IPSP: Glycine or GABA flow causes IPSP to occur.
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you can just put the answer thank you
1.
amount of carbon dioxide being used
amount of glucose being produced
2
amount of ATP used
amount of glucose used
What is photosynthesis?Photosynthesis is defined as a process in which solar energy is captured and organic molecules are produced. This process is fundamental for the survival of life on the planet and is the main way in which energy enters the biosphere.
Where does photosynthesis take place?Photosynthesis takes place in chloroplasts. Chlorophyll and carotenoids are arranged in the thylakoids of chloroplasts in units called photosystems. Two steps can be observed in photosynthesis: light reactions and carbon fixation reactions. At the end of photosynthesis, carbohydrates are produced.
How is ATP produced in the cell?The breakdown of glucose occurs to generate ATP. In organisms without mitochondria, such as bacteria, respiration takes place in a structure called a mesosome. This process uses glucose and oxygen and produces ATP, carbon dioxide and water.
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In pea plants, round seeds (R) are dominant to wrinkled seeds (r). A genetic cross of two plants, one homozygous dominant, one homozygous recessive for the seed shape trait occurs.
what percentage of offspring would have round seeds?
100% of the off spring of dominant homozygous and recessive homozygous parent for the particular trait will be round shaped.
What are homozygous and heterozygous alleles?Differ in the number of genes. These control our physical characteristics and health. Each variation is called an allele. Her two alleles of each gene are inherited from both parents.
Homozygosity is a term in the field of genetics that describes two identical copies of alleles within a DNA gene sequence that encodes a particular trait. We inherit genetic material from our father and mother, so not all double strands of DNA are exactly the same. Homozygosity can occur throughout her DNA in an organism replicating through two parental cells. We all have two alleles/versions, of each gene. Being homozygous for a particular gene means that we inherit two identical versions. , is the opposite of the heterozygous genotype with different alleles.
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What is the object in the middle with a coil of wire wrapped around a metal shaft?
A magnet in which the magnetic field is produced by an electric current is known as an electromagnet. Usually wound into a coil, the wire used to create an electromagnet.
What sort of magnet is an electromagnet?Devices with electric motors like electric fans and doorbells are examples of electromagnetic . The clapper is drawn to the electromagnet of a doorbell, which strikes the bell and causes it to ring. An electric motor converts electrical energy into kinetic energy by means of an electromagnet.
what are electromagnets?One definition of an electromagnet is a magnet that runs on electricity. An electromagnet's strength, unlike that of a permanent magnet, may be altered by varying the amount of current passing through it.
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Of the following chromosomal abnormalities, which type is most likely to be viable in humans?
A. Trisomy
B. Haploidy
C. Monosomy
D. Triploidy
Answer: It is A
Explanation: I have my ways ;>
Suppose human activities that influence the carbon cycle came to a complete stop. Use the information provided in the figure to predict the net effect on global carbon cycling.
a) Carbon cycling would be brought into balance so that it moves at equal rates through all compartments.
b) Carbon cycling would be shifted toward an increase in deposition in sediments and fossil fuels and a decrease in inorganic carbon dioxide levels.
c) Carbon cycling would be shifted toward an increase in outgassing of carbon dioxide from ocean waters and a decrease in carbon levels in living plant biomass.
d) Carbon cycling would be shifted toward an increase in dissolution of carbon dioxide into ocean waters and a decrease in carbon levels in living plant biomass.
In order for carbon cycling to occur evenly through all compartments, it must be balanced.
What does the word "human" mean?Due to the Middle French humain, which means "of or pertaining to man," the word "human" first appears in writing in the middle of the 13th century. In turn, that term is derived from the Latin humanus, which is regarded to be a hybrid relative of homo.
Just why did God create people?For the aim of sharing love, he made people. Love for God and neighbor is a natural human instinct. In addition, when God created humans, he gave them useful labor to perform so that they can experience God's kindness and reflect his likeness in the way they treat one another and the environment.
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In which organ does a fertilized egg change from an embryo to a fetus? A. Fallopian tubes B. Uterus C. Urethra D. Vagina
Answer:
B. uterus
Explanation:
Fertilization of an egg by sperm normally occurs in the fallopian tubes. The fertilized egg then moves to the uterus, where it implants into your uterine lining.
Answer:
B. uterusInside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.Organisms need energy for chemical reactions to build larger molecules. They also need energy to move and to stay __________.
All living things require energy to survive. In order to build complex carbohydrates, proteins, and lipids from the byproducts of photosynthesis in plants and digestion in animals, energy is needed.
In addition to using the energy in food to fuel life processes, organisms construct larger organic molecules, such as proteins, DNA, and fats (lipids), using the atoms found in food molecules. Cells release energy to create new compounds by dissolving the bonds in food molecules.
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A new organism, Organism E, has been discovered. How could scientists use its DNA to compare and classify this new organism?
Scientists can use DNA sequences to help determine if they have discovered a new species. They can also compare DNA sequences from different organisms and measure the number of changes (mutations) between them to infer if species are closely or distantly related.
What is Species?Species may be defined as the collection of organisms that can significantly reproduce with one another in nature in order to produce fertile offspring.
Scientists can also sequence huge chunks of genetic information among different organisms and then compare them to one another. When they do this, they look for strands of DNA -- or RNA or proteins -- that exhibit homologous sequences, or sequences with similar genes on them.
Therefore, scientists use the mechanism of DNA sequencing in order to compare and classify this new organism E.
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Which of the following is the BEST explanation of the role of DNA and RNA in making proteins?
A. DNA unwinds into two separate strands, and a complementary copy of each is produced during replication. During transcription, a DNA strand is used to produce a complementary strand of mRNA, with uracil taking the place of thymine. During translation, each set of three bases in the mRNA results in an amino acid being added to a chain, and a protein is formed.
B. DNA unwinds into two separate strands, and an exact copy of each is produced during replication. During transcription, a DNA strand is copied to produce mRNA, which is an exact copy of the DNA strand except that uracil takes the place of thymine. During translation, each set of three bases in the mRNA results in a protein with a specialized function being formed.
C. DNA unwinds into two separate strands, and a complementary copy of each is produced during replication. During transcription, a DNA strand is used to produce a complementary strand of mRNA, with uracil taking the place of adenine. During translation, each base in the mRNA results in an amino acid being added to a chain, and a protein is formed.
D. DNA unwinds into two separate strands, and an exact copy of each is produced during replication. During translation, a DNA strand is used to produce a complementary strand of mRNA, with uracil taking the place of thymine. During transcription, each set of three codons in the mRNA results in an amino acid being added to a chain, and a protein is formed.
the answer is A
Explanation:
is the only one that make sense
which stage of cellular respiration takes place in the cytosol? answer electron transport chain atp synthase glycolysis citric acid cycle
In contrast to the Krebs cycle and electron transport, which take place in the mitochondria and call for oxygen, glycolysis occurs in the cell’s cytosol and is oxygen-free.
Embden, Meyerhof, and Parnas provided the glycolysis diagram. Thus, it is often referred to as the EMP pathway. The cell's cytoplasm is where it takes place. The primary goal of glycolysis is to create the countless ATP molecules required for different types of cellular metabolism.
All cells' cytosols undergo glycolysis, which is the main pathway for the metabolism of glucose. Depending on whether oxygen is present, it can happen either aerobically or anaerobically. Due to the fact that aerobic glucose oxidation generates 32 mol of ATP for every mol of glucose, this has therapeutic significance.
While the Krebs cycle and electron transport take place in the mitochondria and require oxygen, glycolysis happens in the cell's cytoplasm without the need for it.
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Select all that would be prokaryotes
(there are multiple/more then just one)
please help :)
Animal
bacteria
plant
fungus
protists
when an hfr e. coli cell engages in conjugation with an f- cell, what will be transferred to the recipient cell if the conjugation bridge is broken after 20 minutes?
When an Hfr E. coli cell engages in conjugation with f- cell, then part of the F plasmid and portion of the bacterial chromosome is transferred to the recipient cell if the conjugation bridge is broken after 20 minutes.
What do you know about Hfr E.coli?High-frequency recombination(Hfr) cell is a bacterium with a conjugative plasmid integrated into its chromosomal DNA and the integration of plasmid in the cell's chromosome is through homologous recombination.
After the cross between Hfr cell and F- cell, recipient cell remains recipient and in this conjugation, chromosomal DNA is transferred from donor to recipient cell with the portion of F- factor. Therefore, the frequency of recombination is high.
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How many of the following can be used to distinguish a nematode worm from an annelid worm?1. type of body cavity2. number of muscle layers in the body wall3. presence of segmentation4. number of embryonic tissue layers5. shape of worm in cross-sectional view a) one of theseb) two of thesec) three of thesed) five of these
Sort of body hollow space three of these is the subsequent can be used to distinguish a nematode bug from an annelid worm.
Further to a greater specialized complete digestive machine, annelid worms have also developed frame capabilities now not found in flatworms or nematodes. those functions seem in some shape in all larger, greater complex animals a coelom, a frame hollow space among the digestive tube and the outside body wall this is lined with tissue.
crucial morphological identification characters in nematodes consist of the shape of the head, the number of annuals, frame length, length of the stylet, the shape of stylet knob, the structure of lateral fields, presence/absence, and form of the spermatheca, the form of woman tail terminus, form, and duration of spicule and gubernaculum.
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in eukaryotic cells, the processes of protein synthesis occur in different cellular locations.
The method by which proteins are created is known as protein synthesis. DNA to RNA transcription takes place in the nucleus of eukaryotic cells.
In eukaryotic cells, what is protein synthesis?The method by which proteins are created is known as protein synthesis. DNA to RNA transcription takes place in the nucleus of eukaryotic cells. Following this, the mRNA strand leaves the nucleus and moves into the cytoplasm, where it is translated (from RNA to protein).
What is the method by which eukaryotes synthesize proteins?Protein synthesis takes place in all cells, including eukaryotes and prokaryotes. Transcription (turning DNA into RNA) and translation are the two steps involved in the generation of proteins (RNA to protein). Between prokaryotes and eukaryotes, there are differences in the place and method of protein synthesis.
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what is the thin membrane that sticks to both shells and forms siphons that are used for drawing in and expelling water.membrane of bivalaves '
The mantle is the thin membrane that sticks to both shells and forms siphons that are used for drawing in and expelling water membrane of bivalaves
What is Mantle ?Numerous species have modified their muscular mantles to allow them to syphon water for propulsion and feeding. The mantle of mollusks with shells, like clams, mussels, and snails, secretes calcium carbonate and a matrix to create the mollusk's shell.
Between the shell and the body is a layer of tissue known as the mantle. To create the shell, it secretes calcium carbonate. It creates a space between the mantle and the body known as the mantle cavity. For filter feeding, the mantle cavity pumps water.
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both photosynthesis and cellular respiration are cellular processes that involve glucose. how do these two processes differently affect the metabolism of glucose?
Glucose is produced during photosynthesis to hold the energy that are gathered from light whereas during cellular respiration, glucose is broken down to release stored cellular energy.
How does both the two processes affect the metabolism of glucose?Photosynthesis makes the glucose that is used in cellular respiration to produce ATP and then glucose is turned into carbon dioxide, which is used in photosynthesis. Water is broken down to form oxygen during photosynthesis and oxygen is combined with hydrogen to form water in cellular respiration.
Photosynthesis converts carbon dioxide and water into oxygen whereas cellular respiration converts oxygen and glucose into water and carbon dioxide.
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Both smooth muscles and skeletal muscles are involuntary muscles.
a. true
b. false
Both smooth muscles and skeletal muscles are involuntary muscles is False.
Skeletal muscle fibers are cylindrical multinucleated striated and under voluntary control. Smooth muscle cells are spindle-shaped with a single central nucleus and no muscles. They are called involuntary muscles. Both cardiac and skeletal muscles are striated but smooth muscle is not.
Smooth muscle fibers are found in the walls of hollow internal organs except in the heart which appears spindle-shaped and is under involuntary control. Skeletal muscles are voluntary muscles. This means you can control when and how it moves and functions. Skeletal muscle consists of voluntary muscles that are normally attached to the skeleton. Skeletal muscles move the body.
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Answer: false
Explanation: got it right on edge
What are the bubbles that are being produced in this test tube, and what is the name of the process producing them?
Answer:
its due to the formation of carbon dioxide during respiration.
Bubbles from a liquid formed when air enters inside the liquid and as a result bubble is formed. The process is called effervescence
basically, effervescence is nothing but the escape of gas from an aqueous solution and the foaming or fizzing that results from that release
Explanation:
Living organisms require energy for biological processes. Chemical energy in a plant cell is.
For biological functions, ATP is a crucial source of energy. ATP serves as an intermediary energy source, receiving energy from molecules like glucose. plays the role of a typical intermediate in metabolism
What are the three forms of metabolism?Ectomorph, mesomorph, the endomorph are the three basic metabolic types; these are words you generally won't hear in your typical, everyday talks. Long-term, nevertheless, your workout strategy will benefit from understanding the types of bodies you were born with.
Is a high metabolism beneficial?People with high metabolisms typically burn calories more quickly than those with low metabolisms, which is advantageous. But at the other hand, if your metabolism is quick, it could be hard to acquire weight or keep up a good diet.
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if the gametes of a flamingo contains 15 chromosomes how many chromosomes would normally be present in the bone cells of a flamingo
Answer:30
Explanation:gamete have half the normal amount of chromosomes.
which factor(s) are hypothesized as the causes of the triassic-jurassic mass extinction? check all that apply.
Researchers debate theories about the Triassic-Jurassic extinction event's origins, which include climate change, asteroid impacts, and volcanic eruptions.
The Triassic and Jurassic mass extinctions: what happened?The end-Triassic extinction was brought about by massive and extensive volcanic eruptions. Around 200 million years ago, an increase in atmospheric CO2 led to the oceans becoming more acidic and the Earth being warmer, which contributed to the extinction of 76% of marine and terrestrial species.
Which are the top 4 reasons for mass extinctions?Extreme temperature variations, fluctuating sea levels, and catastrophic, one-time occurrences like a supervolcano erupting or an asteroid impacting Earth have all been responsible for previous mass extinctions. We are aware of them because the fossil record demonstrates how life has altered over time.
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which scenario will most likely result in a change to the nitrogen cycle that negatively affects plant growth?
Increased soil acidity may result in decreased crop and forest growth as well as the leaching of substances that harm water quality in nitrogen cycle such as heavy metals.
What could have a detrimental impact on the nitrogen cycle?By changing the quantity of nitrogen stored in the biosphere, researchers have found that people are interfering with the nitrogen cycle. Fossil fuel burning is the main offender because it produces nitric oxides into the atmosphere, which react with other substances to create smog and acid rain.
What are the two things that disturb the nitrogen cycle?The use of artificial nitrogen fertilizers, the burning of fossil fuels, and the discharge of nitrogen into wastewater are only a few human actions that have significantly changed the global nitrogen cycle. The natural environment system can suffer if the global nitrogen cycle is altered by humans.
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Why are skeletal muscles striated?
Question options:
A) T-tubules cause the striations
B) Sarcoplasmic Reticulum causes the striations
C) The components of a sarcomere together cause the striations
D) Mitochondria cause the striations
The striations in skeletal muscles are caused by the components of a sarcomere working together.
What is skeletal muscle?Skeletal muscle is one of three major muscle tissues in the human body. Each skeletal muscle is composed of thousands of muscle fibers that are linked by connective tissue sheaths. Individual bundles of muscle fibers in skeletal muscle are known as fasciculi.Sarcomeres are the basic contractile units of muscle fibers made up of actin and myosin filaments. These filaments interact and slide past one another during muscle contraction and relaxation.Skeletal muscles can be found near some of your body's openings as well as between your bones. The muscle attaches to one end of the bone, then stretches across a joint and attaches to another. Tendons (fibrous connective tissues) help.To learn more about skeletal muscle refer to :
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In what fundamental way does the structure of a sponge differ from that of all other animals?.
Answer:
Unlike other animals, they lack true tissues and organs. Some of them are radially symmetrical, but most are asymmetrical. The shapes of their bodies are adapted for maximal efficiency of water flow through the central cavity, where the water deposits nutrients and then leaves through a hole called the osculum.
Explanation:
A(n)
is a relationship in which the veterinarian takes responsibility for the patient and the client agrees to follow the veterinarian’s recommendations
Establishing a veterinarian-client-patient relationship.
What ethics apply to veterinary medicine?These ideas A veterinarian must avoid conflicts of interest or the perception of such conflicts and base all decisions only on the welfare of the patient, the client's needs, the safety of the public, and the need to protect the public's trust in the veterinary profession.
In veterinary medicine, why is ethics important?Though it is a relatively new area of educational focus, veterinary ethics is considered to be of utmost significance in aiding veterinarians in developing their approach to clinical case management and in establishing the general acceptability of actions towards animals.
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Describe how an action potential arriving at a presynaptic membrane of a neurone can result
In the depolarisation of the membrane of a post-synaptic neurone.
which of the following statements about salmonellosis is false? group of answer choices it is a bacterial infection. a healthy carrier state exists. it is a self-limiting infection. the mortality rate is high. it is often associated with poultry products.
salmonellosis is a disease caused by salmonellosis bacteria and the mortality rate is high. it is often associated with poultry products.
What are antibiotics?
Antibiotics are medicine drugs specifically designed to treat bacterial infections that may cause harm to human health.
Moreover, septic shock is a phenomenon that occurs when blood pressure decreases to excessive values in the course of an disease/infection.
Bacteria can be classified into Gram-negative and Gram-positive, and Gram-negative bacteria may be negatively associated with septic shock because this type of treatment (antibiotics) can eventually trigger an increase in the amount of secreted endotoxins.
These toxins produced by Gram-negative bacteria (endotoxins) may produce serious harm to the health of the individual and thus antibiotics treatment may be deleterious.
In conclusion, antibiotics can lead to septic shock if used to treat gram-negative bacterial infections.
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What is Important about the soil pH?
Answer:
Soil pH affects the amount of nutrients and chemicals that are soluble in soil water, and therefore the amount of nutrients available to plants. Some nutrients are more available under acid conditions while others are more available under alkaline conditions.