Answer:
Hemoglobin is a protein found in red blood cells that is comprised of two alpha and two beta subunits that surround an iron-containing heme group. Oxygen readily binds this heme group. The ability of oxygen to bind increases as more oxygen molecules are bound to heme.
What kind of adaptations did plants have to make to live on land?
Answer:
a water-repellent cuticle, sto.mata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, se..xual organs and many more
Explanation:
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Smoking is one of the major reason of Lung cancer. But one may have cancer even if the individual is not a smoker due to radiation, secondary air pollutants.
What is cancer?Cancer is described as the uncontrolled and abnormal growth of cells in one’s body which are arrested in the growth phase of the cell cycle and multiply rapidly and does not mature like normal cells, cancer is more aggressive form of a tumour.
The following describe the relation of smoking with lung cancer
Cancer is caused by oncogenes activating substances [OAS] some of them causes mutation in the bodyThese oncogenic substances in the smoke produced while smoking contains nicotine, hydrocarbons, cyclohydrocarbons and various other factors which converts normal cells into cancerous cells Hence, smoking causes oral and lung cancer
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(04.04 MC)
Which of the following substances is needed during light-independent reactions to create glucose during photosynthesis?
Oxygen
Solar energy
Carbon dioxide
Water
Answer:
c) Carbon dioxide
Explanation:
Carbon dioxide is needed during light - independent reactions to create glucose during photosynthesis. Hence, option (c) is the correct answer.
The cells control center
Answer:
The BRAIN!
Explanation:
Our brain, the control center of the nervous system and the rest of the body, normally allows us to retain and recall information.
How does energy from the sun impact ocean water?
Answer:
the molecules of liquid water change into water vapor and move into the air.
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What is an example of a voltaic cell and an electrolytic cell used in everyday life?
Electrolytic cells are less common in everyday life, although they are important in many industrial operations, as in the electroplating of metals.
What is an example of a voltaic cell?Daniell cell is a galvanic cell. One example of a galvanic cell is the common household battery. The electrons flow from one chemical reaction to another occurs through an external circuit that results in the current.
Thus,Electrolytic cells are less common in everyday life, although they are important in many industrial operations.
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What happens to a neutron atom if it gains or loses electrons?
Answer:
Gaining or losing electrons has no impact on the number of protons and neutrons an atom has, which is another way of saying that the mass number is not affected by changes in the net charge.
Explanation:
Which of the following determines the order the amino acids are moved into the ribosome by the transfer RNA?
Answer:
This order is determined by the attraction between a codon, a sequence of three nucleotides on the mRNA, and a complementary nucleotide triplet on the tRNA called an anticodon.
Explanation:
Hope this helps!! Didn't see what the choices were so I couldn't tell you that part. Just hope what I gave you will do you well!
what is altitude
in triangle
Answer:
The altitude of a triangle is the perpendicular line segment drawn from the vertex to the opposite side of the triangle. It may lie inside or outside the triangle, based on the types of triangles
Explanation:
for example look at the given picture
Which statement correctly compares the speed of light?
The speed of light through space is much greater than 3 x 108 m/s.
The speed of light in glass is much greater than 3 x 108 m/s.
The speed of light in glass is faster than the speed of light through space.
The speed of light in glass is slower than the speed of light through space.
Answer:
The speed of light in glass is slower than the speed of light through space.
Explanation:
Glass is more dense than space therefore speed of light slows down.
Answer:
D
Explanation:
The picture below is a model of the process of translation from the Gizmo Simulation. Label the key parts of this process by matching the number with the correct term.
The number 1 represents the promoter region that initiates the process of translation. The number 2 represents the mRNA strand that synthesizes codons that codes for specific amino acids.
What do you mean by Translation?Translation may be defined as a biological process through which a cell makes proteins with the help of genetic information carried by mRNA.
The number 3 represents the region of tRNA, which is an adaptor molecule between mRNA and ribosomes. The number 4 represents the process of ribosome assembly which is the foundation of protein synthesis. The number 5 represents the initiation of protein synthesis.
Therefore, it is well described above.
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what is the importance of the updrafts and downdrafts in a storm system?
Answer:
Updrafts characterize a storm's early development, during which warm air rises to the level where condensation begins and precipitation starts to develop. In a mature storm, updrafts are present alongside downdrafts caused by cooling and by falling precipitation.
Explanation:
Students were given various animal pictures. They were told to work in pairs, observe the animal pictures, and list some characteristics they could use to classify the animals into groups such as vertebrates and invertebrates. What characteristic do all animals have in common?
Which of the following is a data piece a demographer would NOT be interested in when studying demography
A. Fertility
B. Mortality
C. Jobs
D.Migration
Answer:
C. Jobs
Explanation:
Demography is usually defined as the science of vital and social statistics, as of births, deaths, diseases, marriages etc. of populations.
This means that a demographer study both birth and death rates as they focus on human characteristics.
In demography, fertility is the birthrate of a population. Or in other words, the ability to produce offspring in a population. Mortality is the opposite of fertility; the death rate of a population. Both of these things are something that a demographer would study as they relate to the continuation of human society. Migration though, is a demographic process in which people migrate between different locations or places, resulting in a contribution to a population. So to explain the demographic terms, international migration takes an impact on a population with its age and size structure resulting in an indirect influence on the rate of future births in a population. This means that a overall, fertility, mortality, and migration all are therefore things that a demographer would study. After using process of elimination between the options, there is one left over, which is:
Option C - Jobs
Blood is made of cells and plasma. Each has a different function. Which part of blood will form nets and scabs to stop the flow of
blood when the skin is broken?
platelets
red blood cell
plasma
white blood cell
I need help!!
Answer:
platelets are used to form scabs as it prevent bacteria from going in and loss of blood
8.
How do muscles work in antagonistic pairs?
Both muscles always contract at the same time.
When one muscle pulls, the other muscle relaxes.
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Suppose a hare spotted a coyote and tried to run away. Coyotes can run at a speed of 70 km/h. Hare's can run at a speed of 65 km/h. How far could the hare run before the coyote catches up? assume the hare is 25 m from the coyote
Answer: 0.35 km or 350 m
Explanation:
The coyote runs 70 km/h
The hare runs 65 km/h
The coyote is 5 km/h faster than the hare
The hare is 25 m away, 0.025 km
I will graph this. x is the time passed, y is the distance. The point of intersection is when the coyote catches up.
(0.005, 0.35)
-> The hare can run 0.35 km before the coyote catches up.
4. The video mentions that many toxins, such as many pesticides, do not necessarily stay isolated to the area where they are intended to be placed. Explain.
Toxins, such as many pesticides, do not necessarily stay isolated to the area where they are intended to be placed because they can be washed by underground water.
What are pesticides?Pesticides are chemical substances used to eliminate insects and other pests from the Earth's surface.
Pesticides can have a systemic effect, which also means that they do not stay in a specific location.
In conclusion, toxins, such as many pesticides, do not necessarily stay isolated to the area where they are intended to be placed because they can be washed by underground water.
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The adoptation of peast uprising
Answer:Also known as "Peasant wars"; peasant uprisings in broad usage, were a number of rural-based rebellions from the seventeenth to the twentieth centuries, a typical form of protest in Russia against socioeconomic, religious, and cultural oppression and, occasionally, against political power holders. Peasant uprisings …
Explanation:
What makes using alternative energy sources difficult?
Answer:
There's a lot of things that can make any alternate energy source difficult. Some of the main ones would probably be political pressure, corporate influence, cost, government policies, and more.
Explanation:
I’ll give brainlist to right answers only! There are three questions.
Please do not assume that the grey on them is the answer. My mouse was hover over them
The variation is only the criteria that apply before selecting a beak in natural selection.
What do you mean by Natural selection?Natural selection may be defined as the favorable variations that assist any organism to survive and reproduce in a particular habitat.
The Earth had formed about 4.6 billion years ago. About 3.5 billion years ago, the first prokaryotic cell was formed. While about 1.5 billion years ago, the first eukaryotic cell was formed.
Vestigial structures are those structures that most likely had a function at one time, but no longer serve as a known function.
Therefore, each of the questions are described above.
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Abiotic factors that characterize a forest ecosystem include.
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soillighttemperaturemineralsrockswaterA fossil of which organism would be found in the lowest layer of rock?
- fish
- amphibians
- reptile
- mammal
Answer:
Reptiles
Explanation:
I asked and it had a similar questionnaire and the only answer that it has in common was reptiles so that's what I would go for.
Answer: The answer is c. Reptile
A species of frog has inhabited the tropical rain forests of south america for the
past one million years. which two factors would tend to disrupt the gene pool
stability of this frog population?
a. low mutation rate and random mating
b. hugh mutation rate and numerous migrations
c. low mutation rate and no migrations
d. large population random mating
Answer:
Option B. makes the most sense.
In what way can the human circulatory system be described as double circulation?.
Answer:
Explanation:
The human circulatory system has three key components: blood vessels, blood, and the heart. It is called a double circulatory system because blood passes through the heart twice per circuit.
The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns to the heart.
The left pump sends the newly oxygenated blood around the body. When this blood returns to the heart, it has returned to a deoxygenated state.
Blood Passes Through The Heart Twice Per Circuit
Blood enters the heart:
Deoxygenated blood from the body enters the right atrium of the heart.
Blood pumped to lungs:
The right ventricle pumps this deoxygenated blood out of the heart and towards the lungs.
Lungs oxygenate the blood:
In the lungs, the deoxygenated blood exchanges carbon dioxide for oxygen. This is how it becomes oxygenated (contains oxygen).
Blood returns to the heart:
Oxygenated blood returns to the left atrium of the heart.
Blood pumped into the body:
This oxygenated blood is pumped out of the heart and to the body by the left ventricle.
Blood returns to the heart:
The oxygenated blood gives its oxygen to body cells in exchange for carbon dioxide. The blood becomes deoxygenated and returns to the heart.
Which system is responsible for “fight or flight” response? sympathetic nervous system parasympathetic nervous system somatic nervous system central nervous system
Answer:
central nervous system. specifically the amigdala
Answer:
Its A-(Sympathetic nervous system)
Explanation:
edge 2022
Explain how engineering advances have led to scientific discoveries about the moon.
Answer:
advances in optics leading to the develupment of the hubble telloscope
Explanation:
Also advances in lunar drone for more discoveries and creation of space crafts and rockets
Which transgenic organism has been used to clean up oil spills?.
Answer: The correct answer is bacteria
Explanation: Confirmed correct
Bacteria have been genetically modified to clean up oil spills.
Bacteria have been genetically engineered to clean up oil spills due to their natural ability to break down hydrocarbon compounds found in oil. These bacteria are often referred to as "oil-eating" bacteria or hydrocarbon-degrading bacteria. Genetic modification enhances their capabilities to efficiently degrade and metabolize the oil components, making them more effective in cleaning up oil-contaminated environments.
These genetically modified bacteria are designed to produce specific enzymes that can break down complex hydrocarbon molecules found in crude oil and petroleum products. The enzymes secreted by these bacteria help to speed up the degradation process, converting the oil into less harmful substances that can be naturally assimilated into the environment.
When these genetically modified bacteria are introduced into oil-contaminated areas, they can proliferate and colonize the contaminated sites. As they metabolize the hydrocarbons, they effectively reduce the concentration of oil pollutants, aiding in the remediation of the affected environment. The use of genetically modified bacteria for oil spill cleanup offers several advantages, including targeted and efficient degradation of oil, reduced environmental impact, and potentially faster recovery of affected ecosystems.
It's worth noting that while the use of genetically modified organisms (GMOs) for environmental cleanup has shown promise, it also raises considerations about potential unintended consequences, such as the introduction of new genetic material into ecosystems and the impact on non-target organisms. Therefore, careful evaluation and risk assessment are essential before deploying genetically modified organisms for environmental remediation projects.
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Alfred adler proposed that older siblings, who start out as the focus of their parents’ attention but must share that attention once a new child joins the family, compensate by becoming_____.
Answer:
overachievers
Explanation:
The youngest children, according to Adler, may be spoiled, leaving the middle child with the opportunity to minimize the negative dynamics of the youngest and oldest children. Despite popular attention, research has not conclusively confirmed Adler’s hypotheses about birth order. (Spielman et al. 2020).
According to Alfred Adler, older siblings, who start out as the focus of their parent’s attention but must share that attention once a new child joins the family, compensate by becoming overachievers.
Adler believed that older siblings often feel displaced and insecure when a new baby arrives. They may feel like they are no longer special or important, and they may worry that their parents will love the new baby more than they do.
To cope with these feelings, older siblings may become overachievers. They may strive to excel in school, sports, or other activities in order to prove their worth to their parents. They may also become very responsible and independent, in an effort to take on more of the parental role.
Of course, not all older siblings become overachievers. Some may become withdrawn or rebellious, while others may simply adapt to the new situation and continue to develop in a healthy way.
However, Adler's theory suggests that overachievement is a common coping mechanism for older siblings who feel displaced by a new baby.
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AlaskaFishing
10 minutes ago
Biology
High School
A man who is heterozygous for type A blood has children with a woman who has type O blood. What is the probability they will have a child with type O blood?
100%
75%
25%
50%
0%
Answer:
75%
Explanation:
3/4 of the phenotype will have O blood group, and 1/4 will have A blood group.
