Which best describes a theory? an untested claim a well-supported conclusion a proven fact an educated guess
Answer:
System of ideas used to explain something
please help Mark and Vikki live in two different areas of North America. The temperature in Mark’s town today is 30°F. The temperature in Vikki’s town is 82°F. In both towns, the relative humidity is 90%. Is the amount of water vapor in the air the same in Mark’s and Vikki’s towns? Explain your answer.
Answer:
I think that the amount of water vapor in the air will be different because in Mark's town, it is cold and water in the clouds might turn to ice and come down as snow. And in Vikki's town, it is very warm so the water vapor might come down as rain.
I hope this helped! I was in a rush but I'm positive that this is correct.
When are two populations likely to have very similar allele frequencies?
A. If the selective pressures are different
B. If there is a high mutation rate
C. If there is a large amount of genetic drift
D. If there is a large amount of gene flow
Answer:
c). If there was a large amount of genetic drift.
If the price of gene drift is excessive enough, then two populations will have equivalent allele frequencies and consequently can be taken into consideration as a single powerful population.
What causes allele frequencies to live equally?Allele frequencies continue to be constant over the years due to the following: there is no considerable price of a brand new mutation. individuals with all genotypes are similarly able to mate and pass on their genes; that is, there's no choice against any precise genotype.
What are two impacts of allele frequencies of a population?The natural choice, genetic drift, and gene go with the flow are the mechanisms that purpose modifications in allele frequencies through the years. while one or greater of those forces are appearing in a populace, the populace violates the Hardy-Weinberg assumptions, and evolution occurs.
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Food is moved along the digestive system by muscles in the :
I) oesophagus
II) stomach
III) small intestine
A : I only
B : I and II only
C : I and III only
D : All of the above
Answer:
D. All of the above
Explanation:
The digestive system as a whole is made of muscles for moving of food further. The contraction and relaxation of the muscles enable the food to pass forward.
what are 3 things that are not nucleotides in science
Answer: plants , water , and rocks
Explanation:
Match the following.
binary fission
colony
multiple fission
asexual reproduction in which a single cell divides into two
1. with no exchange of genetic material, reproduction method
of bacteria
asexual reproduction involving the growth of a new individual
from part of an older organism, uneven distribution of
2.
cytoplasm that results in one cell receiving most of the cell
contents
a group of organisms attached to one another after
3.
undergoing asexual reproduction from a common parent
the part of the cell division that causes the separation of the
4.
cytoplasm
a phenomenon in which organisms break into two or more
5.
parts and then each part grows into a new individual
the process involving the division of the nucleus of a body
6.
cell
asexual reproduction in which a single cell undergoes many
7 mitotic divisions in the nucleus and a number of daughter
cells are produced all at once
budding
cytokinesis
mitosis
fragmentation
Answer: could you kindly mark me brainlest??
binary fission asexual reproduction in which a single cell divides into two with no exchange of genetic material; reproduction method of bacteria
budding A kind of asexual reproduction involving the growth of a new individual from part of an older organism. It can also refer to uneven distribution of cells that results in one cell receiving most of cell contents. In grafting, budding involves reducing the scion to a singular bud.
central disk = The central portion of a starfish. The arms of a starfish radiate from the central disk.
colony = A group of organisms attached to one another after undergoing asexual reproduction from a common parent.
conidia = A special kind of asexual spore found in many kinds of fungi.
multiple fission = A kind of asexual reproduction in which a single cell undergoes many mitotic divisions in the nucleus and a number of daughter cells are produced all at once.
propagation = The act of propagating or establishing and growing new plants.
protist = A one- or few-celled organism with chromosomes. Many have characteristics of both animals and plants.
regeneration = A phenomenon in which organisms break into two or more parts and then each part grows into a new individual.
spore = A small, resistant cell that can grow into a new organism. They may be produced either by meiosis or mitosis.
unicellular = One-celled.
A forest fire in Florida clears thousands of acres of trees. What is the most likely consequence for the animal populations in the surrounding area?
Answer:
Explanation:
they would die or suffer
3. What can you learn about soil and air from looking at your graphs and your answers above? .
Answer:
Explanation:
Hope this helps you
Answer:
k
Explanation:
that is correct because i did that a few years ago
Why is it necessary for plants to adapt?
Answer: So they can live and grow.
Explanation: Plants have adaptations to help them survive (live and grow) in different areas. Adaptations are special features that allow a plant or animal to live in a particular place or habitat. These adaptations might make it very difficult for the plant to survive in a different place.
What is the difference between sedimentary and metamorphic rock?
what is mental disorder ?
Answer:
Depression
Explanation:
Answer:
a brain related problem
a mental problem eg
madness
What kind of molecule is formed when many disaccharide molecules are combined?
A. Protein
B. Cellulose
C. Lipid
D. Monosaccharide
Answer: B. Cellulose
A combination of many disaccharides will yield a polysaccharaide, such as starch or cellulose
Animal behavior is based on
Answer:
satisfying physiological needs
Explanation:
What are characteristics of adhesion, examples of adhesion, examples of things that are non-adhesive in science?
Answer:
adhesion is when a molecule is attracted to a surface or other things. An example is how water glides on a glass when it falls down. The water is adhesive to the glass.
Answer:
shear adhesion
Explanation:
on edu
Which of the following substances is NOT a carbohydrate?
A : starch
B : glycerol
C : glucose
D : maltose
________________________________
Hey!!
The right answer is glycerol.
Glycerol is not a carbohydrate.
Explanation:
About GlycerolGlycerol is one of the trihydric alcohols.
It is colourless viscous liquid with a sweet taste.
Uses of Glycerol:It is used as refrigerant since it produces cooling on evaporation.It is used for purifying organic compounds by extraction.Hope it helps...
Good luck on your assignment
_____________________________
Out of the following, glycerol is not a carbohydrate it is an alcohol as it has alcohol as functional group .
What are carbohydrates?
A carbohydrate is defined as a bio-molecule which consists of carbon,hydrogen and oxygen atoms which are usually in the ratio of 2:1 with the empirical formula C[tex]_n[/tex](H₂O)[tex]_n[/tex].
This term is most commonly used in biochemistry as a synonym of saccharide which is a group of sugars, starch and cellulose.
They perform various functions in living organisms. They serve as an energy source and as well as structural components . They are a key component in providing nutrition and are found in wide variety of natural as well as processed foods.
Carbohydrates occur as cellulose in the cell walls of plants and is one of the components of insoluble dietary fibers.
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Which of the following types of training would most likely be required for a forest technician?
A. genetic analysis
B.animal physiology
C.plant life cycles
D.Menghting
Answer:
C. plant life cycles
Explanation:
Answer: The correct answer is C.plant life cycles
Explanation: This answer has been confirmed correct.
A scientist studies the DNA in corresponding genes of a platypus, a
beaver, and a duck. The DNA from which two species are most likely to be most
similar? Explain your answer.
Answer:
platypus and a duck has similar DNA.
Explanation:
There are certain similarities which are present between duck and platypus such as structure of beak or mouth, webbed feet and laying eggs in order to continue its generation. These three characteristic make the platypus and duck similar to each other. There is also one major difference is present which is that the platypus is the only mammal which lay eggs and feed baby with their own milk. Its tail structure is also different from duck.
The DNA from platypus and beaver are most likely to be most similar because these species share a more recent ancestor.
Sequence homo-logy refers to the level of similarity between nucleotide (DNA) sequences due to shared ancestry in the evolutionary history of life.The species that share a more recent ancestor exhibit a higher level of sequence homo-logy than unrelated species.In this case, the linear order of nucleotides in DNA from platypus and beaver are most likely to be most similar because they are mammals, while ducks are birds.In conclusion, the DNA from platypus and beaver are most likely to be most similar because these species share a more recent ancestor.
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if a disease killed all the seagulls what effect would this have on the food web?
Answer:
if the disease kills all the seaguells then it will affect the food chain negativleyy because the population of the species that would eat them (predator) will decrease dramatically and the fish ( what the seaguells eat ) there peopulation will increase dramatically because they are not being eaten .
Explanation:
hope this helps , sorry middle school was a long time ago for me : )
Answer and explanation: it would mean that there would be an increase of fish which is what seaguls eat but a decrease of, for example, leopard seals because if there aren't enough seagulls the leopard seals would die of starvation which would then again decrease another animal species because there aren't enough leopard seals. This would then repeat itself again and again.
Indicate whether each source is reliable or unreliable.
a goverment website
a university professor’s personal blog
a commercial website
an online peer-reviewed science journal
Answer:
Reliable
Unreliable
Unreliable
Reliable
Explanation:
Government websites use the domain suffix (.gov) which demonstrates that the information being provided is from the federal government (reliable).
Blogs are not reliable, especially if they are personal (unreliable)
While some commercial websites could be right, some can skew the truth to fit their perspective or lie for financial gain (unreliable)
Peer reviewed science journals provide studies and experiments, and use real examples (reliable)
A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color change. Which
section of his lab report will include the color change in that chemical?
А. Title
B. Conclusions
C.Results
The larger pool of subjects from which a study group is chosen is called the
A representation
B. population
C. sample
D. research subjects
Please select the best answer from the choices provided
A
B
D
Answer:
B. population
Which life-forms appear to be extinct?
a. Sponges, Insects, and flowering plants.
b. Bony fishes, dinosaurs, and mammals
c. Sponges, insects, reptiles
d. trilobites, ammonoids and dinosaurs
Which life-form was most abundant 250 million years ago?
a. dinosaurs
b. reptiles
c. bony fishes
d. trilobites
Answer:
D for the first question and B for the second
Explanation:
trust
Answer:1.) D (trilobites, ammonoids and dinosaurs)
2.) B (reptiles)
Explanation:
Based on the graft
On the world map above, which hemisphere is highlighted? A. the Southern Hemisphere B. the Western Hemisphere C. the Eastern Hemisphere D. the Northern Hemisphere
Answer:
D.
Explanation:
The highlighted hemisphere is the northern hemisphere.
Answer:
D. the Western Hemisphere
Explanation:
what are things that are not cohesive
Answer:
not cohesive is called non cohesive that means soil is any free-running type of soil, such as gravel or sand, whose strength depends on friction between soil particles. however cohesive soil hardens to a nearly cement matrix when dry. It does not allow water movement.
hope this helped!
Meerkats divide up the roles in their population; some serve as lookouts for predators while others forage for food. This is an example of
Answer:
altruistic behavior
Explanation:
When a predator is spotted, they give a warning bark and other members of the gang will run and hide in one of many bolt holes that have spread across their territory.
Mountains and ice are?
Answer:
Colliding?
what are the answer choices firstly.
Explanation:
What is an igneous intrusion?
Answer:
Igneous intrusions form when magma cools and solidifies before it reaches the surface.
Explanation:
The temperature of the magma was dropped to low for it to continue moving and hardened where it was
How are plants pollinated?
Answer:
People can transfer pollen from one flower to another, but most plants are pollinated without any help from people. Usually plants rely on animals or the wind to pollinate them. When animals such as bees, butterflies, moths, flies, and hummingbirds pollinate plants, it's accidental. hope that helps love!!
Select the correct answer from the drop-down menu.
from the atmosphere to
The atmospheric temperature decreases when snow starts melting because the snow
melt
Answer:
The atmospheric temperature decreases when snow starts melting because the snow absorbs thermal energy from the atmosphere to melt.
Explanation:
The temperature of the air, the intensity of the sun, the speed of the wind, and the amount of humidity are the factors that influence the melting of the snow. The thermal energy in the atmosphere is absorbed by the snow because the temperature of snow is less than the temperature of the atmosphere. When the flow of temperature takes place, the energy also flows. The thermal energy helps the snow to melt because the snow requires warmth to melt.
Answer:
B
Explanation:
A scientist decides to study the effect of salt on a particular type of bacteria. Arrange the steps of the scientific method in the correct order to
show how the scientist would proceed with his work.
The scientist asks the question,
Does salt help the growth of
these bacteria?
>
The scientist puts the bacteria in
three different environments:
high salt, medium salt, and low salt.
A microbiologist notices that
some bacterial species thrive
in salt water environments.
The scientist forms a hypothesis
that higher concentrations of salt
may increase the growth of these
types of bacteria.
The scientist publishes his report
in a scientific journal.
Answer:
yes it does help the growth of bacteria.
The correct order of the steps of the scientific method to show how the scientist would proceed with his work are: 2 - 3 - 4 - 5 - 6 - 7
What is the scientific method?A microbiologist notices that some bacterial species thrive in salt water environments.The scientist asks the question, Does salt help the growth of these bacteria?The scientist forms a hypothesis that higher concentrations of salt may increase the growth of these types of bacteria.The scientist puts the bacteria in three different environments: high salt, medium salt, and low salt.The scientist collects and analyzes the data obtained from the experiment.The scientist draws a conclusion based on the results of the experiment.The scientist communicates the results and conclusions to the scientific community by publishing a report in a scientific journal.
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