Answer:
0.5m/s
The velocity is equal to the distance over time, so we divide 5 by 10
Trucks, houses and swimming pools are measured using:
meters
centimeters
millimeters
quadrameters
Trucks, houses and swimming pools are measured using: millimetres. Thus, option "C" is correct.
How, explain your answer?If it is four millimetres wide on the drawing, then you can divide 16 by 4 to find that every four meters in real life are equivalent to one millimetre in the drawing.
Thus, option "C" is correct.
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Needed asp now now now help ! be correct as well!!
a scientist separates a population of lizards into two groups. what would most likely increase the rate of speciation in this population? a. have one group breed twice as often as the other. b. have one group live with a much stronger predator. keep the two groups apart, but in identical ecosystems. d. force the two groups to breed with each other.
Speciation occurs when there is genetic divergence between two separated groups that used to belong to the same population. Option B) one group live with a stronger predator.
What is speciation?When the original species is divided and placed in different environments, where they can reproduce for many generations, many changes or mutations will occur in each group.
These changes will depend on each group's environment and its ecological pressures.
Pressures act on individuals and make them adapt to the new environmental conditions.
Generation after generation, the genotype of individuals will increase the fitness to survive and reproduce. The fixation of mutations will increase the difference among both groups, up to the diverging point into two new species.
What factors lead to speciation?
One of the main factors that lead to speciation is separating an original population into two or more different groups divided by natural or atificial barriers that can not be crossed. This is the case of allopatric speciation.
After the emergence of the barrier, there is an interruption in the genetic interchange between these groups. New mutations might occur in each group due to environmental differences, leading to genetic divergence over time.
Options
a. have one group breed twice as often as the other.
Assuming identical environmental conditions for both groups, if the genetic charge does not change, there should not be speciation even if one of the populations gets to reproduce more frequently than the other.
b. have one group live with a much stronger predator.
The fact that one of the groups is exposed to a stronger predator and the other group is not, changes the environmental conditions for one of them. The group exposed to the stronger predator will suffer mutations that lead it to adapt to the presence of this new predator. In this case, there will be a genetic divergence between the two groups and hence, speciation.
c. keep the two groups apart, but in identical ecosystems.
Under identical environmental conditions, there is no speciation.
d. force the two groups to breed with each other.
There is genetic flow and the same genetic charge, so there is no speciation.
The correct option is B) have one group live with a much stronger predator.
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The structurelabeled two represents in molecule of ?
Answer:
tRNA
Explanation:
the transfer RNA is an RNA molecule that serves as a link between the mRNA and the growing amino acid chain that forms a protein.
Meaning of biodiversity
Answer:
The variety of life in the world or in a particular habitat or ecosystem
The opossum which is native to north america and the kangaroo
Answer:
The opossum, which is native to North America, and the kangaroo, which is native to Australia, are both marsupials.
What are the structures in the nucleus that contain dna?.
"Chromosomes" are the structures in the nucleus that contains the DNA
_____________________and ______________________are primary lymphoid organs while the _____________________and _______________________are secondary lymphoid organs.
Answer:
Primary lymphoid organs: the bone marrow and the thymus
secondary lymphoid organs: adenoids tonsils spleen
Life used to be organized into two group, plants and animals. What are the 5 kingdoms of life recognized today?*
a. Animal, Fungi, Archaea, Bacteria, Vertebrate b. Protist, Animal, Bacteria, Eukaryote, Archaea c. Plant, Animal, Fungi, Protist, Bacteria
d. Fungi,Vertebrate, Plant, Animal, Bacteria
Answer:
C. Plant, Animal, Fungi, Protist, Bacteria
Explanation:
Another word for bacteria would be monera. The more technically correct version of the answer would be animal, plant, fungi, protist, and monera. However, monera is basically bacteria. So C is your best answer.
Answer:
c
Explanation:
Life used to be organized into 2 groups : plants and animals by Swedish botanist Carl Linneaus. Then it was again classified by American ecologist R. H. Whittaker into 5 kingdoms :
MoneraProtistaFungiPlantaeAnimaliaThe option which lists these options is c (kindly note that bacteria are classified under Kingdom Monera)
List and describe the five kingdoms of life. Who developed this system? What is the basis for the divisions? Why is it important to the study of biology?
Answer:
Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.
Which is a function of the central nervous system? Ingenuity
Answer:
It controls all voluntary movement, such as speech and walking, and involuntary movements, such as blinking and breathing. It is also the core of our thoughts, perceptions, and emotions.
Explanation:
None.
fossilized carbon found in ancient plant and animal remains is said to be
The fossilized carbon found in the remains of ancient plants and animals is said to be carbon 14, used for dating fossilized living things.
What is carbon 14 from carbon 12?Carbon 14 is a natural radioactive isotope of the element carbon, receiving this number because it has an atomic mass of 14. This isotope has two more neutrons in its nucleus than the stable isotope carbon 12. C14 is formed continuously in the atmosphere and is the result of the process of cosmic ray bombardment.
With this information, we can conclude that the fossilized carbon found in the remains of ancient plants and animals is said to be carbon 14, used for dating fossilized living things.
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According to the diagram, what sources contribute to the phosphorus found in soil? According to the diagram, phosphorus found in soil contributes phosphorus to what other sources?
The nutrient cycle is defined as the transportation of nutrients from different components of the environment. A living state refers to the amount of minerals present in an ecosystem.
The nutrition cycle is divided into two categories. The following are some of them:-
Gaseous cycleSedimentation cyclePhosphorus is a nutrient cycle that occurs as a result of sedimentation. The following are the phosphorous' sources, as stated in the question:
MountainsSoilsLeachingplants absorptionLeaching is the process of a nutrient dissolving when raining and enhancing the nutritious quantity of the soil.
Mineralization and immobilization reactions mediated by the microbial biomass pool, as well as the solubilization of inorganic phosphorus-containing minerals by organic acids, inorganic acids, and chelating agents produced by soil organisms, are all part of the phosphorus cycle.
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Which is a type of star system? dim stars solar system planets wobbling stars globular clusters
Globular clusters is a type of star system where the stars are tightly bounded by gravity.
What is a star system?A star system can be defined as small number of stars that orbit around each other and are bound by gravitational force of attraction.
It is also called a stellar system.
Globular clusters is a type of star system with the following features;
It is composed of hundreds or thousands of low-metal old stars. Stars are similar to those in the spiral galaxyStars are tightly bound by gravity.Hence, globular clusters is a type of star system.
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Answer:
D) Globular clusters
Explanation:
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Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. a pansy that is homozygous for purple flowers (pp) is crossed with a pansy that is homozygous for pink flowers (pp). a pansy with purple flowers. a pansy with pink flowers. which genotypes will be included for the offspring in the punnett square for this cross? pp, pp, and pp pp and pp pp and pp pp only
"Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. " The genotype for the offsprings is Pp only. Option C. This is further explained below.
What is a genotype?Generally, the genotype is simply defined as a person's unique set of genes.
In conclusion, Flowers with a purple hue are more likely to bloom than those with pink hues since purple is a dominating feature.
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a group of primitive cells that have the same number of mitosis all daughter cells that result from mitosis meiosis gametogenesis number of chromosomes the intra cellular environment that provides for both mitosis and meiosis The above meiosis is 1920 single chromosomes knowing that the number of single chromosomes in a gamete is equal to the number of primary cells and one-fourth (1/4) of the total number of cells involved in final mitosis.
Answer:
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
Explanation:
What is an advantage of using a smaller contour interval
The answer is
The advantage of using smaller contour interval is that you can see the detail of mountain.
A smaller contour interval is used for showing small details .A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map
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Are there any circumstances in which the daughter cells produced should not be genetically identical?
Are the daughter cells produced by mitosis genetically unique substantive, cannot divide again substantive, have half the DNA of the parent cell substantive, and are genetically identical to each other?
Answer:
At the end of meiosis and cytokinesis, four haploid cells are produced from a single diploid cell. These haploid daughter cells have half the number of chromosomes as the parent cell and are not genetically identical to the parent cell.
Why is mitochondria considered as strange organelle
Identify the types of point mutations depicted. leucine (c t a) is transformed to valine (g t a). leucine valine missense mutation nonsense mutation silent mutation
The type of point mutation that is depicted here is missense mutation.
What is missense mutation?Missense mutation is defined as the type of point mutation where by a mistake occurs in the coding of DNA leading to the change of the DNA base pair.
From the example given, leucine (c t a) is transformed to valine (g t a) which is a different base pair.
Therefore, the type of point mutation that is depicted here is missense mutation.
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Answer:
missense mutation. aka the first answer
Explanation:
When two different forms of a virus infect the same cell, the host cell may manufacture viral particles from both viruses to assemble them into a new form of virus. This process is called _____.
When two different forms of a virus infect the same cell, the host cell may manufacture viral particles by a process called antigenic shift.
What is an antigen?An antigen is any molecule or molecular structure that may trigger a suitable immune response in the host.
An antigen can be the target for antibody binding during classical adaptive immune responses.
In conclusion, when two different forms of a virus infect the same cell, the host cell may manufacture viral particles by a process called antigenic shift.
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DNA looks like:
A ball and chain
A chain
A twisted ladder
A ladder
Answer:
DNA looks like a twisted ladder!
Explanation:
It's made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape. Each strand has a backbone made of alternating sugar.
Answer:
DNA looks like a twisted ladder!
Explanation:
It's made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape. Each strand has a backbone made of alternating sugar.
Why would a civilization choose to live near a river that regularly floods?
o a. the flooding provides extra water for drinking.
o b. flooded rivers have more fish than other rivers.
o c. rivers carve out extra land along the banks after floods.
d. rivers leave fertile soil along their banks after floods.
Rivers with regularly floods leaves fertile soil along their banks which is why a civilization will choose to live near there.
What is Fertile?
This is defined as the ability of land to produce crops and vegetation in abundant quantities.
Flooding washes minerals and humus to the bank of rivers which favors growth of plants which is why option D was chosen.
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PLS HELP ME I NEED THIS IN 1 MINUTE I AM BEING TIMED AND I'M SO CONFUISED PLEASE!!!
When does a solar eclipse occur?
when the moon's umbra covers the sun
when the earth's umbra covers the sun
when the moon's umbra falls on the earth
when the earth passes between the moon and the sun
Answer:
Explanation:
Please refer to the passage to
help you answer the problem.
What is the charge of the
electrical impulses sent from
stimuli?
A. Extremely positive
B. Exactly neutral
C. Negative
D. It depends on the location.
The charge of the electrical impulses sent from stimuli is extremely positive. Thus, the correct option is A. The net charge of such electrical impulses is positive because of the positively charged ions of the Na+.
What is an electrical impulse?An electrical impulse may be defined as a nerve impulse that contains an electrical signal which travels throughout the body by the axon terminal.
In the resting potential state, the potential difference is -80mV, while after reaching the electrical impulse it changes to +40mV. This happens due to an electrical imbalance between sodium and potassium influx and efflux.
Therefore, the correct option is A.
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Consider the two rectangles shown.
2 rectangles have identical side lengths and angle measures. The second rectangle is a reflection of the first.
What transformation maps rectangle QRST to rectangle Q’R’S’T’?
reflection
rotation
stretch
translation
The transformation maps rectangle QRST to rectangle Q’R’S’T’ is reflection.
What is reflection?Reflection of light is an optical phenomenon in which a visible electromagnetic wave strikes a given medium, returning to the original medium in which it propagated.
In this case, reflection of an object occurs in such a way that it is equally reflected where the same points are in the same places.
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What type of organisms do marine scientists believe may provide clues to marine viruses?
a/algae
b/bacteria
c/microbes
The type of organisms that marine scientists believe may provide clues to marine viruses are microbes.
What are marine viruses?Marine viruses are specific types of viruses found in marine environment or habitat.
Marine viruses like other viruses need to infect a living host to survive and replicate themselves. Marine viruses infect almost every living organism in the marine habitat.
Marine viruses are generally known to be microbe killers. Marine viruses infect their host cell by inserting their genetic material and hijacks the machinery inside the cell in order to replicate.
Therefore, the type of organisms that marine scientists believe may provide clues to marine viruses are microbes.
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Cyanobacteria have been engineered to produce isobutanol directly. what advantage does this have over other alternative biofuels? a. it is an inherently renewable fuel source. b. multiple processing steps can be avoided. c. they produce chemical energy through photosynthesis. d. they make a biofuel alternative to gasoline. please select the best answer from the choices provided a b c d
Answer:
B
Explanation:
The advantage of cyanobacteria over alternate biofuels is that multiple processing steps can be avoided.
Cyanodiesel, a byproduct of cyanobacteria, has unlimited growth potential and are used in various fields of biotechnology.
Benefits of Cyanobacteria-derived fuels ?⇒ Transform solar energy into chemical energy by the process of photosynthesis
⇒ Fixing of atmospheric nitrogen, helping in the increase of soil fertility
⇒ Widespread applications in pharmaceuticals and agriculture
The advantage of cyanobacteria to produce isobutanol over alternate biofuels is that multiple processing steps required in biofuel production from other sources can be avoided. So option B is correct.
How are cyanobacteria useful in producing isobutanol?Cyanobacteria are recently been engineered to produce a variety of chemicals, such as ethanol, Isobutanol, and Isoprene, directly from solar energy, carbon dioxide, and water. This makes cyanobacterium a potential new cell factory for the production of energy and chemicals to meet global energy and climate change challenges.
Synthetic cyanobacteria are engineered through heterologous biosynthesis to create value-added chemicals through photosynthesis. Several chemicals have been successfully generated in synthetic cyanobacteria.
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LITERALLY WILL GIVE ANY AMOUNT OF POINTS HELP Complete the total time column for the table below to assist with answering the
reflection questions. The first one has been completed for you.
.
bya-billion years ago
.
mya-million years ago
1cm=10 million years ago
Time Span
Scale
Total Time
4.6 bya-3.8 bya
460 cm -380 cm
.8 billion years
3.8 bya-2.5 bya
380 cm-250 cm
2500 mya-543
250 cm - 54.3 cm
mya
543 mya-490 mya 54.0 cm-44.0 cm
490 mya-443 mya
49.0 cm-44.3 cm
443 mya-417 mya
44.3 cm-41.7 cm
417 mya-354 mya
41.7 cm-35.4 cm
354 mya-290 mya
35.4 cm - 29.0 cm
290 mya-245 mya 29.0 cm-24.5 cm
245 mya-206 mya
24.5 cm-20.6 cm
206 mya-144 mya
20.6 cm-14.4 cm
144 mya-65 mya
14.4 cm-6.5 cm
.
Hadean Eon
(Precambrian Time)
Archaean Eon
(Precambrian Time)
Proterozoic Eon
(Precambrian Time)
Cambrian Period
Ordovician Period
Silurian Period
Devonian Period
Carboniferous
Period
Permian Period
Triassic Period
Jurassic Period
Cretaceous Period
Hadean Eon (Precambrian Time):
4.6 bya-3.8 bya460 cm -380 cm0.8 billion yearsArchaean Eon (Precambrian Time):
3.8 bya-2.5 bya380 cm-250 cm1.3 billion yearsProterozoic Eon (Precambrian Time):
2500 mya-543 mya250 cm - 54.3 cm1957 million yearsCambrian Period:
543 mya-490 mya54.0 cm-49.0 cm53 million yearsOrdovician Period:
490 mya-443 mya49.0 cm-44.3 cm47 million yearsSilurian Period:
443 mya-417 mya44.3 cm-41.7 cm26 million yearsDevonian Period:
417 mya-354 mya41.7 cm-35.4 cm63 million yearsCarboniferous Period:
354 mya-290 mya35.4 cm - 29.0 cm64 million yearsPermian Period:
290 mya-245 mya29.0 cm-24.5 cm45 million yearsTriassic Period:
245 mya-206 mya24.5 cm-20.6 cm39 million yearsJurassic Period:
206 mya-144 mya20.6 cm-14.4 cm62 million yearsCretaceous Period:
144 mya-65 mya14.4 cm-6.5 cm79 million yearsLearn more about the geological time scale here:
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What kind of organism is an autotroph
Answer:
an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
Like a Plant
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