Answer:
Anticodons are found in tRANA
Codons are found in RNA
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Which of the following are not examples of renewable resources?
What does the term "feedback inhibition” describe?
Answer:
Feedback inhibition, in enzymology, suppression of the activity of an enzyme, participating in a sequence of reactions by which a substance is synthesized, by a product of that sequence.
Clara, while vacationing in Italy, decided to go swimming. When she asked at what temperature the pool was kept, she was told that it had a constant temperature of 35.8°C. What temperature is the pool in °F, to the nearest tenth?
a.
53.6°F
b.
96.4°F
c.
122.0°F
d.
129.1°F
Answer:
96.4
Explanation:
The answer is at the top
When she asked at what temperature the pool was kept, she was told that it had a constant temperature of 35.8°C. The temperature is the pool in °F, to the nearest tenth is 96.4°F. Therefore, option (B) is correct.
The average kinetic energy of all of a substance's particles is used to measure temperature. The average kinetic energy of a substance rises with the speed at which its particles move, increasing its temperature and making it feel warmer.
One of the seven SI base units is the kelvin, which is the thermodynamic temperature unit. Curiously in the SI, we additionally characterize one more unit of constant temperature, called the degree Celsius (°C).
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List the 6 levels of organization and define each
Polydactyly is expressed when an individual has extra fingers and/or toes. Assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits. Having extra digits is caused by a dominant allele. The couple has a son with normal hands and feet, but the couple's second child has extra digits. What is the probability that their next child will have polydactyly
Answer:
The probability of the couple´s next child having polydactyly is 1/2 = 50%
Explanation:
Available data:
Due to technical problems, you will find the complete answer and explanation in the attached files
Carbon dioxide in the atmosphere flows into and out of living things.
Which type of living things take carbon dioxide out of the atmosphere?
Select one:
A. all answer choices.
B. Plants
C. Animals
D. Fungi
The part of the plant that takes in carbon dioxide from the air for photosynthesis stomata.
21. A soft sedimentary rock, like limestone, can change over time into a hard metamorphic rock
like marble. What processes must have acted on the limestone over the years to change this
sedimentary material into hard metamorphic material?
Answer:
The heat generated by the magma chamber has changed these sedimentary rocks into the metamorphic rocks marble, quartzite, an hornfels. Regional Metamorphism occurs over a much larger area. This metamorphism produces rocks such as gneiss and schist. ... They are generally as hard and sometimes harder than igneous rocks.
If sedimentary rock, pressed inside the crust and treated with a high pressure and temperature, then it can change over time into a hard metamorphic rock.
What is a sedimentary rock?A sedimentary rock is mad up by the decomposition of minerals and other organic matter near the water surface.
These rocks are soft, such as limestone.
These rocks can turn into hard metamorphic rocks if they came in contact with high pressure and temperature.
Thus, by high pressure and temperature, the sedimentary rock change into hard metamorphic rock.
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A piece of alien DNA cannot multiply itself in the progeny cells of the organism because:
a. It has no the sequence called Origin of replication (ori) needed for starting replication.
b. A piece of DNA will be denatured and damaged soon as it has no stability.
c. A piece of DNA is easily unwound and the H bonds between nitrogen bases are broken.
d. Both A & B.
occurs when the population is well below the carrying capacity.
A. Exponential growth
B. Logistic growth
O C. Population crisis
O D. Population crash
SUBMIT
Answer:
A
Explanation:
When the population is well below the carrying capacity, it results into Logistic Growth.
What is Logistic Growth?As competition increases and resources become increasingly scarce, populations reach their carrying capacity causing growth rate to slow nearly to zero.
This produces an S-shaped curve of population growth known as the Logistic Curve.
What are the factors determining Carrying Capacity?Resources important for the survival of the species can act as a factor for Carrying Capacity .Example- For plants , it is water, sunlight, nutrients and space and for Animals- Food, Water, Shelter and Nesting Space.
Limited quantities of these resources results in competition between members of the same population or Intraspecific competition.
Examples of Logistic Growth are:
Yeast - A microscopic fungus can produce S shaped curve when grown in test tube.
Logistic Growth takes place when population's per capita growth rate decreases as population size approaches a maximum imposed by limited resources i.e. the carrying capacity.
Ecologists uses different methodologies for modelling Population Dynamics, amongst which major ones are Exponential Growth and Logistic Growth.
When the per capita rate of increase takes the same positive value regardless of the population size, it results into Exponential Growth whereas the per capita rate of increase decreases as the population increases towards a maximum limit, then we get Logistic Growth.
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Can anyone help me with my homework
Answer:
Explanation: 1. Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.
2. Organic, Clastic and Chemical Sedimentary Rocks.
3. The formation of coal takes millions of years, which is why it is an exhaustible and non-renewable natural resource.
It was formed around 300 million years ago when the earth was covered with swampy forests.
When plants in these forests- mainly trees, mosses, ferns, and reeds died, they fell into the swamps.
Thus there was a thick layer of dead vegetation in the swamp formed.
4. Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus, chunks and smaller grains of rock broken off other rocks by physical weathering.
6.Squeezed and compressed over time, the sediments become 'consolidated' (made solid) into layers of rock. Stratigraphy is the study of those layers Cementation occurs when dissolved mineral components deposit in the interstices of sediments. It is the sticking together of sediment that forms a rock.
7. It is used by marine biota to form a shell frame. Shells of marine animals are rich in carbonate minerals. When the marine animals die, the shells will accumulate and settle in a place so that rocks are formed.
8. This may be due to the overburden load, which is essentially the weight of all the material above the layer of minerals in question squashing them flat. Or it may be due to deformation caused by the movements of tectonic plates which often causes a form of deformation known as shearing where two things slide past each other. When this occurs in ductile rock masses, it acts to flatten and rotate mineral grains so that their long axis is parallel to the shear plane.
Wrong answers only! What is the purpose of sampling water at the water treatment plant. PS IT HAS TO BE ABOUT THE TOPIC
3. This is the menstrual phase wherein pregnancy is poss
a) follicular phase
c) menstrual phase
b) luteal phase
d) ovulation phase
woman for pregnancy.
Answer:
Insiso "d"... The ovary phase depends on the days after emnarazo.
Answer:
D ovulation phase.
Explanation:
Which of the following is carried out by vesicles?
O Synthesizing proteins
O Facilitated diffusion
Breaking down substances within the cell
Organizing organelles prior to division
Answer:
breaking down substances within the cell
Explanation:
there are many different types of vesicles, Peroxisomes and lysosomes are both types that break down substances in the cell
The correct statement about vesicles is "Breaking down substances within the cell"
Vesicles are an organelle isolated from the cytoplasm by a membrane-like lipid layer.
Its function is to store, move and process products and cellular waste.Endocytosis and exocytosis transports are characterized by the fact that the substances move through vesicles.The vesicles incorporate substances (endocytosis) and through degradation, they expel large particles that cannot cross the plasma membrane, this mechanism is exocytosis.Therefore, we can conclude that the cell incorporates, inside the vesicle, particles from the extracellular environment and also through the vesicles it releases degradation products to the extracellular environment.
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what are the the four main categories of organic macromolecules ?
Answer:
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions.
Four main categories of organic macromolecules are as follow:
carbohydratelipidsproteinsnucleic acidWhat are macromolecules?Macromolecules are polymers containing long chains of molecular sub-units known as monomers. These play an important role in biophysical processes and composed of thousands of atoms that are covalently bonded.
Carbohydrate is a biomolecule having carbon, hydrogen and oxygen atom.It is the main source of energy of the body.
Lipids are macromolecules that are insoluble in water and the main function is to serve as structural component of cell membrane.
Proteins are macromolecules that are extremely complex in structure and made up of amino acid residues joined by peptide bonds.
Nucleic acids are biopolymer macromolecules and composed of nucleotide. The function is to carry genetic information which helps to make RNA.
Therefore,Four main categories of organic macromolecules are as follow:
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Genetic information is stored in which cellular structure?
A. Cytoplasm
B. Chromosome
C. Mitochondrion
D. Golgi body
Really need help on this
why is the structure of dna important to its function
Answer:
The function of DNA is tied to its structure. ... The sugars and phosphates link the nucleotides together to form each strand of DNA. When two strands of DNA come together, base pairs form between the nucleotides of each strand. Nitrogenous bases pair together in the following way: A-T and C-G.
What is the amino acid sequence that results from the original DNA sequence?
Explanation:
D
Use the chart. The first amino acid is AUG
AUG is found in the row A, column U, and AUG is the 4th letter in the box, the sequence for it is met.
Looking at the next 3, UGG
The code for that is trap sk it has to be d.
The original source of the matter in food
Answer:
I think your asking what is the original source of the matter in food
Explanation:
if so The Sun is the major source of energy for organisms and the ecosystems of which they are a part.
what is the activities of life that occur the cellular level
Answer:
all the digestive activities of life (respiration , digestion, excretion, etc) occur at the cellular level.
Explanation:
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What is the phenotype of the sons in generation III? How do you know? .
PLEASSEEE help me ASAP
Answer:
Our of the cell
Explanation:
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Explain how an abiotic factor (stronger storms, warmer oceans, or lower ocean pH) can affect populations in a coral reef ecosystem
Answer:
Climate change leads to: A warming ocean: causes thermal stress that contributes to coral bleaching and infectious disease.
Explanation:
Sea level rise: may lead to increases in sedimentation for reefs located near land-based sources of sediment. Sedimentation runoff can lead to the smothering of coral.
Meiosis is part of the cell cycle.
Answer:False
Explanation:Mitosis
Demonstrate how 200 different cells came from a single fertilized ovum ?
Answer:
Humans are not that different from other animals, but vary in the finer detail.
Indeed most amniotes (terrestrial organisms with fetuses surrounded by membrane) work pretty well along the same principles, and there’s also much in common as far back as you want to go, really, on land or in water.
And my next semi-random thought is to say that cellular differentiation, like real estate (apparently), is all about location, location, location. Where the cells are, or where they came from, seems to matter a lot.
Actually, it’s more about layers. Like an onion. Or a cake. (I can’t believe I’m writing this, and apologies to any Shrek fans out there.)
What I mean to say is that some understanding of developmental embryology will help here. To simplify things enormously, our adult cell types ultimately arise from embryonic stem cells. These stem cells are multi-purpose and programmable, or pluripotent in a sense, and capable of making whatever type or form of cell is requested. They just need to be “told” what to do. And just tiny bits of code do exactly that, flipping switches on or off as required, based on cues like orientation, chemical gradients, and proximity.
Now a quick read of the links above will explain it all, but I’ll press on anyway. Out of that initial programming arises our ‘germ layers’, the mesoderm, the ectoderm and the endoderm. We are, after all, triploblastic. 3 layers, get it?
But you knew that.
In case you didn’t, these layers in effect give you a scaffold or more accurately perhaps a tube comprising an inside, outside, and a middle. Where your cells are hanging out in that tube matters, in that they pick up on their location and auto-magically become functionally relevant to that space. In a sense, I mean. Refer back to location, location, location.
Just knowing that pattern of proximity, gradients, and orientation more than simply sets the scene. Whether you work forwards or backwards from there, you will hopefully see that these “germ layers” derive quite simply from a much earlier differentiation, and then complexify. In that sense you have your answer - a complex set of diverse cell types arises by differentiation from an earlier, simpler differentiation. Which sounds a bit clunky when I write it out, but it gives a general idea.
So how does this complicated process happen?
Well, as I mentioned chemical gradients are probably to blame here. And it actually starts before fertilisation, in that the egg itself is already semi-structured and bathed in chemicals with a high-low gradient of some sort. In that sense it’s giving cellular differentiation a head start (there’s a pun there), by setting up some sort of polarity from the beginning. At the very least we get some ends happening, or a top and a bottom if you like.
Now, again simplifying things enormously, your average fertilised egg, or zygote, has by definition a complete set of your DNA ready and waiting, which contains the code for every protein-making gene, plus transcription factors, plus whatever else gets copied for various reasons, including those we haven’t teased out as yet.
Note that those transcription factors really matter. We may have around 20,000 protein-expressing genes, but we also have some 1,500 transcription factors that seem to switch the genes on, off, or arguably and effectively somewhere in between. Well, they work in combination and by that we get a huge amount of variation in expression, and thus our cellular diversity as well.
And all of that DNA goodness is sitting in that zygote, bathed in chemicals that may vary very slightly from top to bottom and side to side as it were, by concentration and by other traits, like temperature. Several such things interact, including orientation and proximity to neighbours, but let’s assert (based on experiments) that the gradient is important, and that it continues to guide the “differentiation” process as new cells are born.
Which is to say that by this process of reading the DNA and expressing only the genes that are switched on by the helpful and gradient-sensitive (say) transcription factors, we get set up to form those 3-D axes and the scaffolding that will guide our cellular replication strategy. Which then produces a result that with each round of replication becomes subtly different and more diverse. Over time the subtlety gives way to more recognisable layers and specialisation in function.
Perhaps not the neatest, clearest explanation but the quickest and least baffling one I can come up with right now. As always, read the links to get a better grasp.
Answer:
During the development of an organism, cells differentiate into many distinct cell types. How does a single fertilized egg cell develop into so many different types of specialized cells? ... They both cannot produce all cells. Multipotent- limited to replacing cells in the tissue where they are found.
A) How do scientists use molecular clocks to study evolution?
B) Explain some assumptions and limitations of the molecular clock concept.
Answer:
A) A molecular clock is a measure of evolutionary time based on the theory that specific DNA sequences mutate at constant rates. To use a molecular clock, scientists first select two different species and compare their DNA sequences. They can compare the DNA sequences directly, or by looking at the RNA and protein molecules created from the DNA. Molecular clocks help to measure the number of changes and mutations which accumulate in the gene sequence of different species over a period of time.
B) Molecular clocks assume the neutrality of gene mutation. They are based on the fact that genetic mutations although random, occur at a relatively constant rate. Evolutionary biologists use this information to deduce how species evolve and determine when two species diverged on the evolutionary time line. It is useful in the study of variations in selective forces, and also facilitates establishing the dates of phylogenetic events including those not documented by fossils. Molecular clocks do have some limitations. Rates of change may not be constant, may not be the same in all organisms, and may be different for different genes.
I used the answer above and added some stuff here and there, so credit to them. I'm not sure if what I wrote makes much sense, but hopefully it can be somewhat helpful. :)
The process of meiosis is essential in the sexual reproduction and life cycle of many organisms. The outcome of meiosis is haploid gametes. Which statements correctly describe the importance of meiosis to the life cycle or these organisms?
A) Increasing genetic diversity ensures that no two haploid gametes are exactly the same.
B) Taking a diploid cell to its haploid state occurs during the first cell division of meiosis.
C) Checkpoints during meiosis ensures that chromosome separation occurs accurately, avoiding non-disjunction.
D) DNA synthesis occurs before each cell division in meiosis ensures that the integrity of the chromosomes is maintained.
E) Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization.
Answer:
E) Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization.
A) Increasing genetic diversity ensures that no two haploid gametes are exactly the same.
Explanation:
Meiosis is a kind of cell division that strictly occurs in sexually-reproducing organisms. It is the process whereby four daughter cells that are genetically different from their parents are produced. In meiosis, the chromosome number of each daughter cell (gamete) is reduced by half. As highlighted in this question, the meiotic process is essential in the sexual reproduction and life cycle of many organisms.
This importance is attributed to the fact that:
- Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization. That is, a diploid organism (2n) produces a haploid gamete (n), which becomes diploid again when fertilized by another gamete.
- Increasing genetic diversity ensures that no two haploid gametes are exactly the same. This occurs because of a process called CROSSING OVER, which enables that the alleles of each gamete is recombined to be different from one another in order to promote genetic diversity.
Answer:
A, B, C, E
Explanation:
i just did it
pulled upwards in the trunk of a tall tree Ichestue
S. Give three reasons to explain why transpiration occurs mainly through leaves
6. Explain how sunken stomata lower the rate of transpiration
11
with
ftri
Answer:
Due to stomata.
Explanation:
Transpiration occurs mainly through leaves because of the presence of stomata n the lower side of the leaves. Transpiration refers to the loss of water from the body of plants so leaves has small pores which is used by the plant to regulate internal temperature. Sunken stomata lower the rate of transpiration because it is not directly exposed to the surface which protects the escaping water vapor due to air.
Detection of a light is
coming from a car is
and interpreting the light as
Select one:
a. Sensation perception
b. Consciousness: unconsciousness
e Bods: cons
O d. Energy: gestalt
Answer: d
Explanation:
You discovered symptoms start to appear on your cattle and its spreading, the symptoms are swollen, fever then death.
Suppose you are a veterinary Doctor, what will you do, what procedures you will apply to examine this disease.?
Answer:
f
Explanation:
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
Relative Dating of rock layer