Answer:
D) Sea otters are a keystone species as they prevent a herbivorous species from completely destroying a plant species.
Explanation:
Which factor plays a central role in determining which of the brain's synapses will be eliminated and which will be maintained?
Answer:
The answer is "frequency with which they are activated".
Explanation:
Frequency refers to the number of consecutive repetitive events per unit time. It is measured in hertz (Hz), equivalent to a single event per second. The time is the number of one cycle in a recurrent event, and so the duration is the same for the frequency, hence the frequency at which they are triggered is a key determinant of the brain's connections to be eliminated and maintained.
Which structure is directly involved in gas exchange?
ESSE
O trachea
pharynx
O alveoli
O bronchi
Answer:Alveoli
Explanation:cause I got it wrong from someone else
Plant species A has two alleles for leaf color. If plant species B has four alleles for leaf color, how will the two species differ in their appearance?
A. Species A will have more colors on each leaf than species B.
B. Species B will have fewer phenotypes for leaves than species A.
C. Species A will have fewer leaves per plant than species B.
D. Species B will have a greater variety of leaf colors than species A.
Answer: D
Explanation: It would be D because it has a larger amount and all species vary and leaves can be exactly the same they change color and evolve into different shapes
True or false? Recent genetic evidence indicates that there may be—in the roots of some plants—a response stimulated by the concentration of water in the soil.
Group of answer choices
False
True
I think it will be false only as I have readed in my sister book FALSE
Answer:
I think the answer is false.
Explanation:
I hope this helps
Limestone, which contains the mineral calcite that fizzes in weak acid, may change
due to heat and pressure into the metamorphic rock marble. What characteristics
would you expect the marble to show?
A: it would show fossils.
B: It would not fizz in acid.
C: It would have stripes.
D: It would fizz in acid.
Answer:
D: It would fizz in acid.
Explanation:
Marble is a limestone & will have an acid reaction that is similar to the limestone from which it was formed.
Answer:
yup
A: it would show fossils.
B: It would not fizz in acid.
C: It would have stripes.
D: It would fizz in acid.
Explanation:
Which statement best describes an organ?
A. This is the most complex level of organization of life.
B. Cells of one type work together to carry out a function
C. Different types of tissues work together to carry out a function
D. This is the simplest level of organization of life.
Answer:
I believe the answer is C.
it gets published
:)
Answer:
resend again that question dear
Answer:
yes ir will be published
Explanation:
I guaranteed you
Complete the sentence below by selecting the correct words from the drop-down menus. Factors that affect natural selection include , , and .
Answer:
The correct answer is -
variation, over population and adaption.
Explanation:
Natural selection is the process to which the various species and populations are able to adapt and change according the environmental changes. It is affected by three main factors that are variation, over population and adaption.
Variation: varion is one of the factor that pushes the population to change towards the beneficial variation in the population for their survivability and reproducing theirselves.
Overpopulation: over population increases the competition amon population and there fore there resources become limited so few have to change or their ways of utilizing resources.
Adaption: Adapting the change takes place due to any situation in environmental that put stress on the population allow them to adapt according the change or they will extinct.
Answer:
Variation, overpopulation, and adaption
Explanation:
I can confirm this is the right answer, because I just did the assignment.
In Osmosis, a cell becomes turgid when it:
A. expands from absorbing too much water.
B. bursts from absorbing too much water.
C. bursts from absorbing too much water.
D. contracts from absorbing too much water.
Answer:
A
Explanation:
This occurs when a plant cell is placed in a hypotonic solution.A solution were the external solution concentration is less than the internal concentration of the cell, causing water to rush into the cell.
During osmosis by absorbing too much water from outside the cell, a cell becomes turgid. The correct option is A.
What is osmosis?Osmosis is the passage of water molecules via a cell's partially permeable membrane from a solution with a large concentration of water molecules to a solution with a lower concentration of water molecules.
Osmosis occurs when the concentration gradient of water reaches zero or when the water's hydrostatic pressure equals the osmotic pressure.
Endosmosis and exosmosis are the two main types of osmosis that occur when water moves across the cell membrane. When cells are placed in a hypotonic solution, endosmosis occurs, which is the movement of water into the cell.
When cells are placed in a hypotonic solution, exosmosis occurs, which is the movement of water out of the cell.
Thus, the correct option is A.
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How are finches in the Galapagos Islands a good example of adaption?
It is the highest level in the modern taxonomic classification system
Answer:
Domain
Explanation:
The domain is highest level in modern taxonomic classification system.
Which statement about inheritance is true?
Girls get most of their traits from their moms; boys get most of their traits from their dads.
Male offspring will always have an X-linked genetic disease if the mom is a carrier.
Fathers always determine the gender of the offspring in humans.
Males never have Y chromosomes.
Answer:
The correct answer is the third statement.
Explanation:
In humans, the males possess one X and one Y chromosome, while the females possess two X chromosomes. Thus, the female always donates X chromosome to the gamete. In any case, the female always generates a similar kind of gamete. While the male either pass X or the Y chromosome to the progeny.
When the gamete with the X chromosome combines with the female gamete than the offspring would possess XX chromosomes and will be a female. On the other hand, when the gamete comprising the Y chromosome combines with the female gamete than the offspring would possess the XY chromosome and will be a male. Thus, it is the father who determines the gender of the offspring.
This is wrong. Parents gender does not affect traits passed on.
Males never have Y chromosomes.This is wrong, Males have to have a Y chromosome. (XY)
Male offspring will always have an X-linked genetic disease if the mom is a carrier.This is wrong. The male offspring have a 50/50 chance if the mother is a carrier, if she has the deseace than all the sons will have the decease.
Correct answerFathers always determine the gender of the offspring in humans.This is because the mom is XX and the dad is XY. The mom gives the X in the gene, and the dad gives the X for daughters (X,X) and gives the sons a Y (X,Y) Males are always XY.
If the mom is a carrier, h, then it will get passed down 50% of the time, and when it gets passed down to the males, they wiill have the deseace. If the mom passes the deacease down to the daughters, 50% will be a carrier too if the dad does not have the deseace. If the dad has the deacease, than 50% of the daughters will have the deacease, and the other 50% will be carrier, and still, 50% of the sons will have the deacease, while the other 50% will be completely clean. So in total 25% of the offspring will be a carrier, 50% will have the deacease, and the other 25% will not have the deacease or be a carrier.
What are the possible phenotypes of the children if the mother has Type O blood and the father has type AB blood
Answer:
Type A
Type B
Explanation:
Blood type in humans is controlled by a gene with multiple alleles. Alleles iA and iB are dominant over allele i but are codominant. This means that the following genotypes will give rise to the phenotypes as follows:
iAiA or iAi - type A
iBiB or iBi - type B
iAiB - type AB
ii - type O
According to this question, if a mother with Type O (ii) blood and a father with type AB (iAiB) blood are crossed, the following offsprings will be likely produced:
iAi, iAi, iBi, iBi
iAi - type A
iBi - type B
Hence, the possible phenotypes of the children will be type A and type B blood.
Discuss the impact of development planning for economic development for a development country like Pakistan under what circumstances a country should go for short term medium term and long term plan (it is a economics question)
Answer:
Great impact.
Explanation:
There is a great impact of development planning for economic development for a country because this development planning is important for the growth of economy of the country. Without planning, goals of better economy can not be accomplished. A country should go for short term plan in order to solve the economic problem at that time while on the other hand, medium and long term plan is used by the country in order to solve the economic problem completely.
Cigarette smoke contains carbon monoxide. Explain how this
would affect the normal functioning of red blood cells in a person who
smokes cigarettes.
Answer: Carbon Monoxide is a very harmful and toxic gas which is formed from incomplete combustion of carbon.
Explanation: red blood cells contain haemoglobin ,which are responsible for carrying oxygen into our body system. So oxygen combines with haemagoblin to form oxyhaemogoblin in the red blood cells .
so if a person starts to intake cigarettes which contain high amounts of carbon monoxide ,it reduces oxyhaemogoblin formation because it binds very tightly to the haemogoblin .then carboxyhaemogoblin is formed and its permanent so causing reduction in aerobic respiration, and reduction in oxygen transport and causing damages to heart muscles.
Hope this helps if you need any more explanation feel free to comment in the comment section below !!!
Microorganisms are classified as bacteria, fungi, protozoa and algae. Viruses are
not explicitly categorized as microorganisms. Give reason.
Answer:
Yes
Explanation:
Because they have both living and non living characteristics so it is hard to classify them as they posses living characteristics as reproduction and others when inside the host and posses non living characteristics when outside the host
In microorganisms micro means small and organism means living ones, so those living ones which are not seen without the help of a microscope, are microorganism.
What are viruses?Viruses are obligate parasites and are very small in size. Viruses cannot live outside the host cells as they require host cell gene expression machinery to divide and perform metabolic reactions. Viruses remain inactive in the environment until found the host cells.
As viruses cannot qualify the criteria of living beings because they cannot survive separately in the evnironment, that's why cannot be considered living organisms.
Mostly microorganisms are single-celled organisms like bacteria, fungi, and protozoa. Viruses are not considered microorganisms because they are nonliving outside the host body.
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(06.01 MC)
When Linnaeus began classifying organisms in the 1700s, he categorized them as plant, animal, or mineral. These kingdoms were later revised to exclude minerals and expanded to include animals, plants, fungi, protists, and bacteria. Which of the following best explains a reason for this change? (2 points)
Group of answer choices
As new organisms were discovered, new kingdoms were created to sort them based on ability to interbreed.
It was discovered that the organisms in each of the five kingdoms have a different method of obtaining nutrients and are therefore fundamentally different.
Technological advances led to the discovery of single-celled organisms and increased our understanding of relationships between organisms.
Genetic research led to the discovery that each of these five kingdoms has a unique evolutionary ancestor.
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PLEASE HELP!!! Give two forms of evidence for evolution that can be found in the fossil record (where animals have changed from simple to more complex.)
Answer:
Forms of fossil records can inlude the carcasses of animals and the structure of plants. These records can compare the advancements of creatures over a long period of time.
Explanation:
The further an animal or plant is burried underneath the soil, it is most likely that it lived much longer ago than a layer above it. The theory of evolution suggests that animals are always changing and adapting to their surroundings. For instance, millions of years ago, a dog like mamal existed but over time they grew accustomed to the water, developing fins flippers and eventually developed features similar to what we expect in whales today.
Plants, on the other hand, may have been much larger than the size they are today due to the excess of oxygen present in the atmosphere. Therefore, when they are fossilized scientists can realize that plants have come a long way in the tree of evolution.
What is not one of the 3 major areas of society affected by science
Answer:
biology
Explanation:
Answer:
D.
Explanation:
Justice
Hope it helps
During the respiration of an organism
A, 1 molecule of glucose produces 2
ATP molecules whereas in the
respiration of another organism B, 1
molecule of glucose produces 38 ATP
molecules. Which of the organisms, A
or B has anaerobic mode of
respiration? Explain with reason.
Answer:
The correct answer is - organism A is anaerobic.
Explanation:
Organism A can convert glucose into alcohol, as it undergoes anaerobic respiration, however, there is an incomplete breakdown of glucose. In this process, there are only two molecules of pyruvate formed, and the rest convert to lactic acid or ethanol.
The energy is only enough to release two ATPs. In the aerobic process, there is a complete breakdown of glucose in CO2 and H2O with 38 ATPs.
The correct answer is - organism A is anaerobic.
Why do biologists classify
Answer:
Biologists classify organisms because:
Classification allows us to understand diversity better. It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences. It enables us to understand how complex organisms develop from simpler organisms. They are grouped under different categories to understand and study the features, similarities and differences between different living organisms. It is essential to understand the inter-relationships among the different groups of organisms. Classification forms a base for the development of other biological sciences.The sacrum articulates with the The sacrum articulates with the ilium and ischium. pubis. ilium. ischium and pubis. ischium.
Answer:
The sacrum articulates with the ilium.
Explanation:
The sacrum is a bone formed by the sacral vertebrae, which have fused to give this bone. Above it articulates with the lumbar vertebra, below with the coccyx, which is the last section of the vertebrae column. Lastly, it articulates with the ilium at the sides. The ilium is one of the three bones that makes the hip bone. It is the largest one and in the upper part of the hip bone.
The ischium and pubis, which are the other two bones that form the hip bone, do not articulate with the sacrum, but they articulate with the ilium and with each other.
Water is denser than isopropanol, so the water layer will always be below the isopropanol layer if they are both in the same container. What does this tell you about the make-up of the pigments for each specimen?
Answer:
One is polar and the other is non-polar.
Explanation:
The makeup of both water and isopropanol is different from each other due to their polar nature. Water is a polar substance means that it makes poles i.e. positive or negative while on the other hand, isopropanol is non-polar substance so due to this reason water and isopropanol make different layers. If both are polar or nonpolar substances so they will able to mix with each other.
what are the harmful effects of bacteria.
Answer:
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more. If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them.
Explanation:
HOPE IT HELPS
Answer:
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more.
If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them. This reaction can lead to the symptoms of swelling and inflammation that we see, for example, in an infected wound.
Which order shows the levels of organization from smallest to largest?
cell -
organ
-
tissue
organ system
-
organism
-
cell tissue > organ – organ system organism
cell organ system organ-
tissue -> organism
O cell organ → organ system - tissue organism
Answer:
The order to show the smallest out largest is: Cell - Tissue - Organ - Organ system - Organism.
Explanation: Organelle are subcellular structures that preform functions in the cell. AND ARE NOT ORGANS.
Now you are going to use station data to write weather forecasts for several cities for today. Write your
forecasts in complete sentences. Assume you are writing for the general public Be sure to discuss
temperatures, winds, and possible precipitation
Answer:
Temperatures and direction of wind are the following.
Explanation:
Los Angeles has highest temperature i.e. 56 and lowest temperature of 47 degree Fahrenheit and wind moves towards Southwest direction.
Salt Lake city has highest temperature i.e. 42 and lowest temperature of 36 degree Fahrenheit and wind moves towards West direction.
Chicago II has highest temperature i.e. 28 and lowest temperature of 27degree Fahrenheit and wind moves towards Midwest direction.
Philadelphia has highest temperature and lowest temperature is the same i.e. 56 degree Fahrenheit and wind moves towards Northeast direction.
New Orleans has highest temperature i.e. 75 and lowest temperature of 70 degree Fahrenheit and wind moves towards South direction.
Which wound usually involves ears, fingers, and hands, and results in tearing or pulling off of a flap of skin
Answer:
Avulsion.
Explanation:
Human bite wounds are blunt wounds, sometimes with partial or total avulsion (ear, lips, nose, hands) and with intense contamination. An avulsion is a complete tear of the skin and subcutaneous tissue. It does not allow the approximation of edges. It presents moderate to abundant hemorrhage and is accompanied by the exposure of underlying tissues (bone, tendon). The tear can be complete or partial; in the latter case, a connection or bridge is preserved between the torn tissue and the rest of the body.
As the altitude increases within Earths atmosphere, what happens to air pressure?
Answer:
As the altitude increases within Earths atmosphere, the air pressure increases
At the back of the brain is the __________ which is primarily responsible for processing information about light and movement
Answer:
Cerebellum
................
the pressure of x mL of a gas was increased from 2 atm to 3 atm at constant temperature. what will be the new volume?
Answer:
Answer
0
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Answer:
P
1
V
1
T
1
=
P
2
V
2
T
2
Explanation:
P
1
V
1
T
1
=
P
2
V
2
T
2
, given a constant quantity of gas.
And thus,
P
1
×
V
1
×
T
2
V
2
×
T
1
=
P
2
, even given this format, we can see the problem is dimensionally sound. We do need to use
absolute temperature.
P
2
=
1.00
⋅
a
t
m
×
250
⋅
m
L
×
313
⋅
K
500
⋅
m
L
×
293
⋅
K
≅
1
2
⋅
a
t
m
.
Explanation:
