Answer:
Australia has so many genetically distinct organisms because it has been separated from other bodies of land for a very long time. This has given species in Australia a long time to evolve independently from species in other areas of the world.
Greg has been given a small sample of metal. His teacher has assigned him to identify what type of metal he was given.
Which of the following is a physical property that will help Greg to identify the metal most accurately?
A.
ability to rust
B.
density
C.
ability to burn
D.
color
Which phrase best describes the need for ion channels?
ions must be able to interact with the charged regions of the cell membrane
o ions need to be sheltered from interacting with the charged regions of the cell membrane
Oso nutrients may enter the cell
O so nutrients may exit the cell
Ion channels are specialized proteins in the plasma membrane that provide a passageway through which charged ions can cross the plasma membrane down their electrochemical gradient. The resulting ionic current, generated by the movement of charged ions through membrane channels, can be measured by patch-clamp methods.
Ion channels must be able to interact with the charged regions of the cell membrane so nutrients can enter the cell.
What are ion channels?
Ion channels are passages in the cell membrane that allow the passage of charged molecules such as
Sodium: Na+Potassium: K+Ions pass from one side to the other of the cell according to the electrochemical gradient. In other words, they go from a place with high concentration to one of low concentration. But to do this, they need to interact with the charged regions of the membrane, which are the ion channels.
Ions channels are one of the ways that nutrients enter the cell.
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what is considered as the amount of matter in an object?
A.solid
B.liquid
C.volume
D.matter
What is considered as the amount of matter in an object?
The correct answer is Mass.
~ The right answer isn't included in the given choices. Perhaps the answer should be none of the above? Or letter D. is supposed to be Mass? Mass is known as the amount or measure of matter in an object.
Volume on the other hand is the measure of space that an object/matter occupies.
Dendrites within interneurons have multiple synapses due to ______
Answer:
Dendritic tree with many synapses. It is shown that dendrites have extensive connections with the axons in the form of axodendritic synapses, which form an important mode of communication between neurons (see Synapse below and Ch. 6, p. 110).
Explanation:
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You are a genetic counselor. Cherry is looking into her genetic history, and she is asking you to figure out who has or had color blindness by looking at her family tree. The image below shows a pedigree chart, and it represents the inheritance of color blindness through three generations.
Are females #1, #2, and males #1, #2, colorblind or not?
With the information provided it is not possible to determine if females #1, #2, and males are colorblind or not are colorblind (they can be colorblind or carriers).
What a pedigree?A pedigree is a diagram to represent the genealogical relationships within a family and the inheritance of certain traits.
In a pedigree, the presence of a complete shadow figure indicates the presence of the genetic condition.
In this case, the females #1, #2, and males #1, #2, can be either colorblind or carriers (i.e., heterozygous for the trait).
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How did richard neumann and vincenzo beltrone feel about the us government action during wartime?
Richard Neumann and Vincenzo Beltrone delay bad about the government during wartime as their freedoms weren't enjoyed.
What is freedom?It should be noted that freedom simply means the rights that are accorded to an individual
During this period, there were four essential freedoms which are:
Freedom of speech and expression.Freedom of every person to worship God his way.Freedom from want.Freedom from fear.During wartime, the fear was in the heart of millions of people. This was illustrated by both men.
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which statement is true of both plant and animal cells?
Answer:
I
Explanation:
A predator inches across the hot Texas sand toward a horned lizard. In response, the lizard first puffs itself up to scare off the predator. When that doesn't work, the lizard squirts something out of its eyes. What is it?
What does Konnikova mean by the phrase ""Caveats don’t fit in single columns""?
What is the difference between monocot and dicot cotyloden
and
What is rhe relationship between monocot seed and dicot seed
Answer: The names of these groups are derived from the number of cotyledons or seed leaves that the embryonic seedling has within its seed. A monocot, which is an abbreviation for monocotyledon, will have only one cotyledon, and a dicot, or dicotyledon, will have two cotyledons.
Explanation:
If this is Personal to god I am sorry. Anyways, since, god was a human before, Who made the People with him And, Him?
Speaking form a Christian perspective, God was never a human, he is a being. His son Jesus on the other hand is half human and half god. I personally believe that God was never made and he has always existed. It makes no sense to us humans since all we've ever known was that everything has a beginning and ending. I think there is more to our universe than we are capable of understanding.
Which RNA molecule copies the DNA sequence into a polypeptide?
Answer:
RNA polymerase is the enzyme which transcribes the DNA into mRNA
Then the tRNA starts translating the mRNA into a polypeptide made of amino acids
can the shape of globin change ?
Answer:
People with the sickle cell mutation in both copies of the HBB gene produce proteins that clump together and lead to changes in the shape and behavior of red blood cells.
According to the World Health Organization, persistent organic pollutants (POPs) are found in nearly all tested organism tissues and environmental samples. Which characteristic of POPs accounts for their presence in living tissues and in environmental samples?
Answer:
POPs are lipophilic, which means that they can be stored in fatty tissues for long periods of time.
Explanation:
Is the “extra finger” trait dominant or recessive? How do you know?
Answer:
It is recessive.
Explanation:
Having an extra finger, also known as polydactyly, is relatively rare, and people with polydactyly are unlikely to have children with the trait unless both the mother and father both have it, making it a recessive trait.
Which of the following is the most likely flow of energy in an aquatic ecosystem? a. phytoplankton → mammal → zooplankton → fish b. phytoplankton → zooplankton → fish → mammal c. zooplankton → phytoplankton → mammal → fish d. mammal → fish → zooplankton → phytoplankton
The flow of energy in an aquatic ecosystem phytoplankton → zooplankton → fish → mammal.
What does the bottom-up model?The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction.
whereas the top-down effect refers to a higher trophic level that influences the community structure of a lower trophic level through predation.
Thus, opotion "B" is correct.
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Location plays a role in wetland type, but is not the sole determining factor. please select the best answer from the choices provided t f
The statement Location plays a role in wetland type, but is not the sole determining factor is true.
What factors affect wetlands?
The most significant factor producing wetlands is flooding. The period of flooding or long soil saturation by groundwater determines whether the resulting wetland has aquatic, bog or marsh vegetation.
Other critical factors include fertility, natural nuisance, competition, herbivory, burying and salinity.
Thus, the statement is true.
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Answer:
True!
Explanation:
State one similarity and one difference between the responses of tropism and mastic movement.
Explanation:
The similarity between tropic and nastic movement is - both are the result of external stimulus and the difference between tropic and nastic movement is the direction of the response is not dependent on the direction of the stimulus in the case of nastic movement but in the case of tropic movement, the response is dependent on the moment.
How did both the redi and the pasteur experiment prove there was no such thing as spontaneous generation
Answer:
These experiments proved that there was no spontaneous generation, since the boiled broth if never reexposed to air, remained sterile.
What happens if the amount of withholding taken from your pay is greater than the amount you owe in taxes?
Answer:
When it comes to taxes, less isn't always more because If you don't withhold enough from your paycheck, you may end up surprised at how much you owe Uncle Sam at tax time. And the chances that you are under-withholding taxes are higher than you may think.
Explanation: A 2018 report by the Government Accountability Office (GAO) suggested that a fifth of taxpayers might owe taxes in 2019 due to under-withholding.1 The concern was particularly significant that year due to changes in the 2017 Tax Cuts and Jobs Act. The updated W-4 form from the Internal Revenue Service (IRS) was fully implemented by 2021, and for some, those changes came as a surprise in the form of a more expensive tax bill.
However, no matter what tax year, it's important to withhold the correct amount from your paycheck to avoid underpaying the government.
If the amount of withholding taken from one's pay is greater than the amount owed in taxes, the taxpayer will receive a refund when they file their tax return, as described in Option A.
What is a tax refund?The amount of tax withheld is based on the employee's income, marital status, and the number of allowances they claim on the form, and the employer then withholds the appropriate amount of tax from the employee's pay and sends it to the IRS on their behalf. At the end of the year, the employee must file a tax return with the IRS, which calculates the total amount of tax owed for the year. If the amount of tax withheld from the employee's pay is greater than the amount they owe in taxes, they will receive a refund for the difference.
Hence, the taxpayer will receive a refund when they file their tax return that is present in option A.
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question is incomplete, complete question is below
What happens if the amount of withholding taken from your pay is greater than the amount you owe in taxes?
A)the taxpayer will receive a refund
B)will enjoy
The minerals hematite and magnetite are sources of
a iron
b. lead.
C. Zinc
d. copper
Why are the lysosomes useful during entrapment of particles?
Answer:
Lysosomes
Explanation:
Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids. Lysosomes function as the digestive system of the cell, serving both to degrade material taken up from outside the cell and to digest obsolete components of the cell itself. In their simplest form, lysosomes are visualized as dense spherical vacuoles, but they can display considerable variation in size and shape as a result of differences in the materials that have been taken up for digestion. Lysosomes thus represent morphologically diverse organelles defined by the common function of degrading intracellular material.
With the help of an activity show that carbon dioxide is neccessary for Photosynthesis.
Explanation:
To prove the necessity of carbon dioxide in photosynthesis following steps need to do
Insert a part of the leaf of a destarched plant into a conical flask containing potassium hydroxide.
Potassium hydroxide solution absorbs the carbon dioxide gas from the air present in the glass bottle.
Leave the plant sunlight.
After few hours, perform a starch test to this and another leaf of the same plant.
Observation-
Leaf exposed to the atmosphere are bluish black.
Leaf exposed to KOH does not change to blue-black colour
Result- Starch is present in the green part of the leaf.
Conclusion- Presence of starch proves that chlorophyll is necessary for photosynthesis as it traps sunlight.
expermant laveas test strach
Answer:
Experimental Procedure:
Mix 10 drops of tincture of iodine with 30 drops of water to make an iodine solution. Put a cracker on a plate, and test it for starch using a drop of the iodine solution. Chew a second cracker for 60 seconds until it is completely mixed with saliva.
Cervical vertebrae can be uniquely identified by the presence of:.
Answer:
In humans, cervical vertebrae are the smallest of the true vertebrae and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process, through which the vertebral artery, vertebral veins, and inferior cervical ganglion pass.
Explanation:
Choose the best answer.
The ____ covers the outside of the cell and keeps the contents inside.
a. plasma membrane
b. cell wall
c. ribosome
d. cytoplasm
Answer: a. plasma membrame
Explanation:
it's not b becasue a cell wall is composed of many cells. c and d are compoments of a cell found within it. which leaves us with a. plasma membrame, the protective layer that seperated the cell with its outside environment.
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Which advantage do angiosperms and gymnosperms have over mosses?
Answer:
They are seed plants and consequently do not rely on water for fertilization as do the ferns and mosses.
Explanation:
How did the genus homo adapt to accommodate the obstetric dilemma?.
The genus homo adapted to accommodate the obstetric dilemma through the following:
Birth development where the head of the baby rotates.Assistance during labor.What is Obstetrics?This is the branch of medicine which deals with pregnancy, childbirth and the postpartum period.
The genus homo adjusted to obstetrics dilemma by ensuring assistance during labor to ensure safe delivery of the babies by the females.
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What are some specialized structures that help marine fishes live and reproduce in the ocean?
Some of the specialized structures that help marine fishes live and reproduce in the ocean are as follows:
FinsSwim bladderGillsWhat are specialized structures?Specialized structures are those structures possessed by certain organisms that enable them adapt to their environment.
Fishes are known to adapt to aquatic environments whether marine or freshwater ecosystem.
Therefore, some of the specialized structures that help marine fishes live and reproduce in the ocean are as follows:
Fins - for swimming and changing directionSwim bladder - for buoyancy in waterGills - for breathingLearn more about specialized structures at: https://brainly.com/question/25039796
Multiple meanings the word matrix can be used to describe things shaped in a pattern of lines and spaces. How does this relate to a mitochondrion?
The mitochondrial matrix is the fluid inside the mitochondria. It is required during cellular respiration.
What are mitochondria?Mitochondria are eukaryotic organelles that can be considered the energy factories of this type of cell.
Mitochondria are able to synthesize ATP (the energy coin of the cell) by a process called cellular respiration.
The mitochondrial matrix is a fluid inside the mitochondria which is required to create a proton gradient during cellular respiration.
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The term matrix in relation to a mitochondrion states that a fluid or jelly-like substance which is present inside the mitochondria and plays a vital role during cellular respiration.
What do you mean by Mitochondria?Mitochondria may be defined as a double membrane-bound cell organelle that is known as the powerhouse of the cell. This is because the energy required for various activities is released by mitochondria in the form of ATP.
The matrix of the mitochondria consists of small-sized ribosomes and DNA, which possess genetic information.
The mitochondrial matrix is the site of metabolic activities like the TCA cycle which is responsible for the conversion of pyruvate and fatty acids to acetyl-CoA.
Therefore, the term matrix in relation to a mitochondrion states that a fluid or jelly-like substance which is present inside the mitochondria and plays a vital role during cellular respiration.
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