Answer:
In passive transport, substances move from an area of higher concentration to an area of lower concentration. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm).
Explanation:
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In economics, a trade off is best decribed as
A.the study of people producing and exchanging ideas
B.exchanging goods for services
C.giving up some of one thing to have more of some other thing
Answer:
oi
Explanation:
ok
Answer:
C
Explanation:
.
Trisomy 21 is a genetic disorder in which an individual has an extra copy of chromosome 21?
HELP PLEASEEEEE PLEASEEEEEE
Question 15
What determines the type of soil that is created when it is formed?
A. the types of organisms living in the soil
B. the amount of time it takes to create the soil
C.the type of rock and minerals in the parent material
D.the altitude of the location of soil formation
C is the answer..........
15. Describe how the structure of the bird respiratory system provides the energy the
bird needs for flight.
Answer:
The bird's respiratory system consists of paired lungs, which contain static structures with surfaces for gas exchange, and connected air sacs, which expand and contract causing air to move through the static lungs.
Birds do not have a diaphragm; instead, air is moved in and out of the respiratory system through pressure changes in the air sacs. ... Bird lungs do not expand or contract like the lungs of mammals. In mammalian lungs, the exchange of oxygen and carbon dioxide occurs in microscopic sacs in the lungs, called 'alveoli.'
Air sacs are found as tiny sacs off the larger breathing tubes (tracheae) of insects, as extensions of the lungs in birds, and as end organs in the lungs of certain other vertebrates. They serve to increase respiratory efficiency by providing a large surface area for gas exchange.
How do birds respire?
Some birds can sing while they fly! ... When the bird takes a second breath, the air in the lungs is sucked into the cranial air sacs -caudal thoracic, cervical, and clavicular. The cranial air sacs act as a holding chamber which provides a small back flow of air into the lungs during expirations.
Explanation:
explain why biodiversity in an ecosystem is important?
Answer:
It is important because we need many different types of animals. Food chains are made up of many different links, and if there are fewer links, this will lead to animals not being able to feed. Biodiversity boosts the ecosystem and leads to an ecosystem that is self sustaining and able to produce things for people.
Explanation:
Select the correct answer.
Which unit is used for measuring atomic mass?
O A. atomic mole
OB. grams/mole
O c. grams
D. atomic mass unit
O E. atomic mass weight
Answer:
Option A
Explanation:
mole is taken under consideration for measuring atomic mass
(b) Describe the characteristics of the interior of the aquaporin channel protein that allow water to flow through AND exclude glucose.
If isolated keratinocytes are placed in a hypotonic solution for 24 hours, explain the net direction of water movement AND why the
rate of water movement slows down over time.
Answer:
Aquaporin protein is a type of protein composed of a bundle of six transmembrane α-helices.
Explanation:
Aquaporin protein is a type of protein composed of a bundle of six transmembrane α-helices. These aquaporin protein have different size of water channels that allow water through to pass through it but it does not allow glucose to move through it due to its large size. The direction of water movement is toward the cell because there is low water inside the cell as compared to outside environment so the water moves inside the cell and rate of water movement slows down over time due to filling of empty spaces with water.
Suppose you were standing on a beach in Sarasota, Florida. It is afternoon on a hot, sunny day. You feel a breeze blowing from the Gulf of Mexico (from west to east.) What type of wind are you feeling?
A.
trade winds
B.
sea breeze
C.
land breeze
D.
prevailing wind
Answer:
sea breeze
Explanation:
during the day land is hotter than water. when hot air rises via convection. cool air rushes in to replace it. the cool breeze you feel is that rush of cold air replacing the rising warm air.
Please help if this is correct and If you know more information I can add.
Answer:
Yes that is correct i think
Explanation:
The difference between biotic and abiotic factors are (1 point)
O abiotic is non-living and biotic is living.
O abiotic provide minerals and biotic does not.
Obiotic provide minerals and abiotic does not.
O biotic is non-living and abiotic is living.
Imagine that you are a scientist who has discovered a new object. You want to find out if the object is biotic or abiotic. You observe several characteristics about the new object. Which of these characteristics would tell you that the object is abiotic, or not alive?
(answer) The object cannot create energy.
The initial rise in the line of the graph is an example of population growth in a species as a result of
(answer)an increase in food supply.
China instituted a “one child per couple” rule to help address which of the following?
(answer) overpopulation
Which of the following describes the difference between biotic and abiotic factors?
(answer) abiotic is non-living and biotic is living
Which is a list of factors that will limit the carrying capacity of a species?
(answer) food supply and habitat space
Explanation:
i just did the quick check UwU
The difference between biotic and abiotic factors is that abiotic means non-living and biotic means living, that is the first statement, as biotic factors refer to living organisms in an ecosystem like plants and abiotic factors include soil.
What is the difference between biotic and abiotic factors?Biotic factors refer to the living organisms in an ecosystem, such as plants, animals, fungi, and microorganisms, and these organisms interact with each other in various ways, including through predation, competition, and mutualism, while abiotic factors refer to the non-living components of the environment, such as air, water, soil, sunlight, and temperature, which can have a significant impact on the distribution and behavior of biotic organisms within an ecosystem.
Hence, the difference between biotic and abiotic factors is that abiotic means non-living and biotic means living, which is the first statement.
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If a star is 17 light-years away, how long does the light from the star take to reach Earth?
A
17,000 years
B
1,700 years
C
170 years
D
17 years
Answer:
17 years
Explanation:
If a star is 17 light-years away, the light from the star will take 17 years to reach the Earth.
Answer:
17
Explanation:
Because I'm right
Which evolved first,the kangaroo or the hawk?Explain
Answer:
The hawk has less evolutionary steps so it evolved first
so its the hawk
Uneven land surfaces created by limestone mining can cause transportation problems in the location. Which of these is the best plan to solve this problem? water the mining area regularly O reduce the use of heavy machinery in the mining area O choose other uninhabited locations for limestone mining O make reclamation mandatory after limestone has been removed
The best way to solve the problem would be to make land reclamation mandatory after limestone has been removed. The 4th option is the correct one.
What is land reclamation?It refers to the process of returning lands on which mining has been done to a beneficial status.
In order words, it refers to minimizing the impact of mining on land surfaces such that they remain useful even after mining has been carried out on them.
By doing so, transportation on such lands will not be problematic after a period of limestone mining.
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100 POINTS PLEASE ANSWER- the answer is not c or d CONFIRMED
The diagram illustrates the process of developing genetically modified corn.
What occurs at step 3 in the diagram?
The restriction enzymes cut the isolated DNA into fragments.
The gene of interest is inserted into an expression cassette.
The recombinant DNA is inserted into the host cell nucleus via a vector.
The expression cassette is inserted into a plasmid for cloning.
Answer:
B The gene of interest is inserted into an expression cassette.
Explanation: I hope this helps you.
(i believe this is the diagram that goes to the question)
The gene of interest is inserted into an expression cassette that occurs at step 3 in the diagram. Therefore, option B is correct.
How is genetically modified corn produced?The GMO corn Bacillus thuringiensis (Bt) produces proteins that are poisonous to some insect pests but not to humans, pets, or cattle.
The most popular bacteria for GM plants is known as Agrobacterium tumefaciens. The desired gene is introduced into the bacterium, and the bacterial cells then introduce the new DNA into the plant cells' genome. The successfully incorporated plant cells are then cultivated to produce a new plant. This is how genetically modified corn is produced.
Thus, step 3 in the process of developing genetically modified corn is the gene of interest inserted into an expression cassette. Therefore, option B is correct.
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Your question is incomplete, most probably the full question is this:
The diagram illustrates the process of developing genetically modified corn.
The diagram illustrates the process of developing genetically modified corn. What occurs at step 3 in the diagram?
The restriction enzymes cut the isolated DNA into fragments.The gene of interest is inserted into an expression cassette.The recombinant DNA is inserted into the host cell nucleus via a vector.The expression cassette is inserted into a plasmid for cloning.The image is attached below:
What is the correct amino acid sequence for the
mRNA code AUGCCAGUAUGA
Answer:
UAC GGU CAU ACU
The correct amino acid sequence is Methionine-Proline-Valine-Stop codon.
What is the genetic code?The genetic code is a code that specifies the amino acids that will be added to a protein from a given nucleic acid chain.
Each triplet of nucleotides or codon in mRNA indicates a specific amino acid.For example, the codon AUG specifies the addition of the amino acid Methionine.In conclusion, the correct amino acid sequence is Methionine-Proline-Valine-Stop codon.
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Which statement applies to transverse waves?
The waves have a trough.
Particles move great distances.
The waves have alternating compressions and expansions.
The energy is transferred parallel to the direction of the wave motion.
Answer:
A) The waves have trough
Explanation:
100% sure
The statement 'the waves have a trough' applies to transverse waves.
What are transverse waves?Transverse waves are a type of wave in which their fluctuations need to be perpendicular to the wave.
Conversely, longitudinal waves are waves in which their oscillations have the same direction of the wave.A wave can be defined as any type of disturbance capable of carrying energy but that does not involve motion.In conclusion, the statement 'the waves have a trough' applies to transverse waves.
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When observing the Earth's biosphere organization, which is the smallest ecological level?
A population
A community
An organism
An ecosystem
Answer:
it is an orgismi
Explanation:
that is my answer
Answer:
organism
Explanation:
An organism makes up an animal, and when there are many of the same animal, it makes up a population. Many populations of different kinds of animals make up a community. Many communities make up an ecosystem.
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Geoengineering includes a variety of large-scale efforts to reverse global climate change.
One geoengineering concept involves releasing large amounts of iron-containing
fertilizers into oceans. The increased concentration of iron in ocean water would
theoretically increase the rate of photosynthesis carried out by phytoplankton. Why are
such ideas controversial?
A. Photosynthetic algae would increase, not decrease, atmospheric carbon
dioxide.
C. Scientists cannot agree whether carbon dioxide in the atmosphere relates to
global climate change.
D. Scientists cannot predict what other unintended effects large concentrations
of iron may have.
Answer: D, Scientists cannot predict what other unintended effects large concentrations
of iron may have.
Explanation: just took quiz ap3x
Answer:
D
Explanation:
Just took the quiz
2 ways that the Excretory system regulates balance in the body are:
pls help me with this
Answer:
Excretory systems regulate the chemical composition of body fluids by removing metabolic wastes and retaining the proper amounts of water, salts, and nutrients. Explanation:
Which plant belongs to the cabbage family?
Answer:
Broccoli, cauliflower, Brussels sprouts, kohlrabi, collards and kale. These cool-weather cole crops are members of the cabbage family
Explanation:
Plants like kale, cauliflower, broccoli and collards belongs to the cabbage family.
What is a family?The family is ranked above the genus and below the order in taxonomy. More closely connected to one another than they are to other members of the same order are members of the same taxonomic family.
For instance, the Order Carnivora includes foxes, coyotes, lions, cats, otters, and weasels.
Today's taxonomy system divides families into orders. A taxonomic rank employed in the classification of organisms and acknowledged by the nomenclature codes is the order in biological classification.
The medium-sized and commercially significant family of flowering plants known as the mustards, crucifers, or cabbage family is known scientifically as the Brassicaceae or Cruciferae.
The cabbage family includes plants like kale, cauliflower, broccoli, and collards.
Thus, these are some plants of cabbage family.
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I need help on number 10 and 11
A sperm cell fertilizes an egg cell, as shown below.
This process plays a vital role in
A.
reproduction.
B.
growth.
C.
budding.
D.
binary fission.
Answer:
A) Reproduction
Note:
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the hormone by anterior pitutary
Answer:
The anterior pituitary gland produces six major hormones: (1) prolactin (PRL), (2) growth hormone (GH), (3) adrenocorticotropic hormone , (4) luteinizing hormone , follicle-stimulating hormone , and thyroid-stimulating hormone
use the table to answer the question below ^
A mutation causes the following change in DNA.
original DNA sequence
TACGCATGGAAT
DNA sequence after mutation
TACGTATGGAAT
Explain how layers that form in ice are similar to tree rings
first answer gets brainliest
Explanation:
Layers of ice and tree rings are similar in that they can both record or store data from past environmental conditions. ... Just like the tree rings specific sections represent a specific period of time. Air bubbles trapped in ice provides information on past climates.
The layers that form in ice are similar to tree rings in the following ways such as record of time, environmental information, dating method, and preservation of records.
How are the layers in ice similar to tree rings?Record of time: Both ice layers and tree rings serve as a record of time, with each layer or ring representing a specific period. In the case of ice, layers are formed annually due to seasonal changes in snowfall and temperature, while tree rings are formed yearly as a result of new growth during the growing season.
Environmental information: Both ice layers and tree rings provide valuable information about past environmental conditions. Ice layers can reveal information about temperature, precipitation, and atmospheric composition, while tree rings can indicate temperature, precipitation, and even ecological events such as forest fires or pest outbreaks.
Dating method: Both ice layers and tree rings can be used as dating methods in scientific research. By counting the number of layers or rings, scientists can determine the age of the ice or tree, and by extension, the age of the surrounding environment or historical events.
Preservation of records: Both ice layers and tree rings are preserved over time, allowing scientists to study past climates and environments. In ice, the layers can be preserved in glaciers or ice sheets, while tree rings are preserved in the wood of the tree.
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For the strand of DNA listed below. write out the matching RNA strand.
GTAGCGTACAGCIGACGA ACGTGCATTGC GAC G
10. Wei saw a special type of plastic that would melt and become a liquid when it was placed in the sun, but it would not melt when placed under a desk lamp. Why does light from the sun melt the plastic when light from the desk lamp does not? Because the plastic can take in energy from the light from the sun but not from the light from the lamp. b Because light from the sun carries heat molecules, and light from the desk lamp does not. Because light from the sun pulls energy out of the plastic, and light from the desk lamp does not. Because the sun gives off a type of light that carries erlergy, and light from the desk lamp does not.
How do an mri and spinal tap help confirm the diagnosis of ms
An MRI can scan and detect scars used by MS that shows up as white patches, usually called lesions. A spinal tap You can remove and test the fluid in the spine through spinal taps to test for MS.
Are viruses abiotic?
Answer:
no because they dont need to consume energy to survive and they cant replicate without a host cell
it does not follow all of the seven life processes (Movement, Respiration, Sensitivity, Nutrition, Excretion, Reproduction and Growth.) therefore it is non-living
Explanation:
The bacteria Lactobacillus acidophilus are frequently used in the production of yogurt. These bacteria use lactic acid fermentation when oxygen is not available. What would happen to the bacteria under anaerobic conditions if the lactic acid fermentation pathway were blocked?
A.
The bacteria could no longer regenerate the NAD+ needed for glycolysis, so it would stop producing ATP.
B.
The bacteria could switch to using the Kreb's cycle, so it would continue producing ATP.
C.
The bacteria could no longer make the NADH needed for chemiosmosis, so it would stop producing ATP.
D.
The bacteria could switch to using alcohol fermentation, so it would continue producing ATP.
Answer:
A. The bacteria could no longer regenerate the NAD+ needed for glycolysis, so it would stop producing ATP.
Explanation:
According to the given information in this question, Lactobacillus acidophilus is a bacterium species that uses the lactic acid fermentation when there is no oxygen in its cell i.e. under anaerobic conditions. This means that it converts glucose to lactic acid during this anaerobic respiration process.
However, if the lactic acid fermentation pathway were blocked under an anaerobic condition, this means that it will be no longer be able to perform respiration and hence stop production of ATP. This is because the bacteria will no longer regenerate the NAD+ (electron acceptor) needed for glycolysis, so it would stop producing ATP. Note that, all living organisms, whether aerobic or anaerobic, undergo GLYCOLYSIS, which is the first stage of cellular respiration.
Answer:
EDMENTUM
Explanation:
