what is Classification?
Take 50 points
Answer:Classification, in biology, the establishment of a system of categories on the basis of presumed relationships among organisms. The science of biological classification is commonly called taxonomy.
Answer:
Thanks
Explanation:
Thanks
Where would you expect to find humans with the darkest skin color in the Northern Hemisphere (from 10°N to 60°N)?
Answer: Australia
Explanation:
in a microscope never use the _____with ________when you are done
Answer:
In a microscope never use the __scope___with ___high power_____when you are done
Explanation:
Is there a human carrying capacity on Earth? Explain why or why not.
Answer: Every species has a carrying capacity, even humans. However, it is very difficult for ecologists to calculate human carrying capacity. Humans are a complex species. We do not reproduce, consume resources, and interact with our living environment uniformly.
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Creating a checklist of activities is not a helpful strategy for determining what to study for an upcoming test. Please select the best answer from the choices provided T F
Answer:
ture
Explanation:
Answer:
true
Explanation:
edge 2021
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Water can be formed from the synthesis reaction of hydrogen with oxygen:
2 H2 (g) + O2 (g) → 2 H2O (g)
The complete reaction of 5.12 Liters of O2 with excess hydrogen produces how many moles of H2O?
A) 10.24 moles H2O
B) 114.7 moles H2O
C) 0.457 moles H2O
D) 5.12 moles H2O
Answer:
Explanation:
[2ΔSf(H2O (g))] - [2ΔSf(H2 (g)) + 1ΔSf(O2 (g))]
[2(188.72)] - [2(130.59) + 1(205.03)] = -88.77 J/
2. Which is a function of the cardiovascular system? *
convert oxygen and glucose into ATP (energy)
O convert oxygen into glucose
O carry oxygen and glucose to body cells
O store oxygen and glucose in the blood
What is the name of the atmosphere we live in, which is about 5-9 miles thick,
depending on where you are on Earth.
A.) The Stratosphere
B.) The Exosphere
C.) The Mesosphere
D.) The troposphere
Answer: d
Explanation: The atmosphere has 4 layers: the troposphere that we live in near the surface of the earth; the stratosphere that houses the ozone layer; the mesosphere, a colder and lower density layer with about 0.1% of the atmosphere; and the thermosphere, the top layer, where the air is hot but very thin.
Match the following terms to their definitions. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Words can be used more than once. ResetHelp Diverging circuit Converging circuit Reverberating circuit Parallel after-discharge circuit 1. : One incoming axon triggers responses in ever-increasing numbers farther and farther along the circuit. 2. : May be involved in complex, exacting types of mental processing. 3. : Involved in control of rhythmic activities such as breathing. 4. : Involved in activating fibers of a skeletal muscle such as the biceps muscle. 5. : Different types of sensory input can have the same ultimate effect.
Answer:
1. Diverging circuit.
2. Parallel after-discharge circuit.
3. Reverberating circuit.
4. Diverging circuit.
5. Converging circuit.
Explanation:
A sensory system can be defined as components of the central nervous system (CNS) which comprises of the brain, neural tissues or pathways and sensory neurons responsible for sensory functions, perception and processing sensory informations such as sound, light, heat, etc.
Basically, the central nervous system (CNS) interprete the neural signals that are generated from stimuli that are detected by the sensory system. The five (5) main sense organs in the sensory system are: skin, tongue, ears, nose and the eyes.
Generally, the nervous system found in living organisms such as humans, comprises of two (2) major components or systems; a central nervous system (CNS) and a peripheral nervous system (PNS).
A neural circuit can be defined as a group of neurons in the body of a living organism which are interconnected by synapses to perform specific functions when they're activated.
There are four (4) main types of neural circuits used for performing specific neural functions in the body of a living organism, these includes;
1. Diverging circuit: one incoming axon triggers responses in ever-increasing numbers farther and farther along the circuit. For example, a neuron that stimulates thousands of cells such as sensory pathway to the central nervous system (CNS).
2. Parallel after-discharge circuit: may be involved in complex, exacting types of mental processing. For example, it used in reflex arcs, mathematics and logic.
3. Reverberating circuit: involved in control of rhythmic activities such as breathing and as such it's repetitive in nature. For example, short-term memory, sleep cycle, etc.
4. Diverging circuit: involved in activating fibers of a skeletal muscle such as the biceps muscle.
5. Converging circuit: different types of sensory input can have the same ultimate effect. For example, the regulation of the somatic motor neuron.
What produces gene flow?
ws
O mating between populations
O mutation
O geographical isolation
O speciation
Answer:
O mutation
Explanation:
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Which of the following solutions would best address the issues of greatest concern in the community?
Construction of a seawall
Answer:
Construction of an offshore breakwater
Explanation:
A beach community was recently negatively affected by a hurricane. Community leaders are looking for a potential solution to prevent damage from future hurricanes. Below is a list of their concerns as well as how important each issue is to the community.
Community Concerns Concern Level
Wave action Low
Beachfront development Low
Nearshore aquaculture Low
Health of nearby coral reef Moderate
Roosting bird species High
Storm surge threat High
Construction of an offshore breakwater
8. In a population of beetles, there is a gene for color with two codominant alleles. The allele R leads to red beetles and the allele B leads to blue beetles. Heterozygous beetles are red and blue spotted. A heterozygous beetle mates with a red beetle. What is are the genotypic and phenotypic frequencies of their offspring? Please show all of your work. (2)
Answer:
The genotypic frequency = 1:1
The phenotypic frequency = 1:1
Explanation:
Given that:
The allele → R = Red beetles
The allele → B = Blue beetles
Since the gene color shows a codominant allele
The Red Beetle = RR
The blue beetles will be = BB
The heterozygous beetle will be = RB
∴
The punnet square showing the crossing of RB × RR is:
R B
R RR RB
R RR RB
The result shows that we have two red beetles and two heterozygous beetles.
Hence;
The genotypic frequency = 1:1
The phenotypic frequency = 1:1
What process takes place in meiosis but not mitosis?
A.
sister chromatids separating
B.
crossing over
C.
DNA replication
D.
DNA condensing into chromosomes
Answer:
A. sister chromatids separating
Answer:
will go for b. crossing over
Explanation:
"The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads."
Crossing over plays a critical role in increasing the genetic variation among offspring of sexual reproduction.
a. True
b. False
Answer:
T
Explanation:
I Got It Right.
2. How much is the average temperature at depth of 10 km of earth surface?
A) 200 °C
C) 650°C
B) 900°C
D) 20°C
The average temperature at depth of 10 km of the earth's surface is 200°C. Thus, the correct option is A.
What is the average temperature?An average temperature may be defined as the annual mean temperature of any geographical location which is estimated approximately by the average temperature of the maxima and minima for the warmest and coldest months of the year.
It is the principle that the increase in the depth below the surface of the earth ultimately leads to the rising of average temperature. This is due to the process of apparent heat.
It may be possible that higher or lower temperatures also occur. but the average temperature at depth of 10 km of earth surface should approximately remain 200°C. It is a factual type of question.
Therefore, the average temperature at depth of 10 km of the earth's surface is 200°C. Thus, the correct option is A.
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what is lenticles?
Take 50 points
Answer:
A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of dicotyledonous flowering plants.
Explanation:
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The diagram below shows a food web.
How would the removal of the rabbit population affect the other populations in the ecosystem?
A. The field mouse population will decrease.
B. The snake population will increase
C. The lizard population will increase.
D. The tree population will decrease
Answer:
C. because the grasshopper will have less competition to eat Grass letting them reproduce more, since the grasshopper's population increases there will be more food for the lizards helping them reproduce more.
A species of moth lived in a forest with a mixture of dark- and light-colored trees. The coloring of these moths is inherited. The dark moths were hidden from predators on the dark trees, and the light moths were hidden on the light trees.
When the light-colored trees were killed by a disease, the forest was suddenly made up almost entirely of dark trees. Generations later, almost all the moths had the dark coloring. Which of the following gives a correct explanation?
Answer: The light moths that survived did not mate and have offspring because they thought that their offspring would easily be seen and eaten by predators.
The light moths that survived had dark offspring because the change in the environment caused the parents to decide to have offspring that would do better in the changed environment.
The light moths saw that the dark moths were less likely to be eaten by predators, so they made themselves dark as well.
The dark moths were better hidden from predators, so more of them survived. Because dark parents outnumbered light parents, there were many more dark offspring than light offspring in the next generation.
Explanation:
The fossil record indicates that in some cases reasonably well-defined species appear suddenly and remain unchanged for a long time before they become extinct. This phenomenon is referred to as
Answer:
The correct answer is - punctuated equilibrium.
Explanation:
The phenomena represent punctuated equilibrium, according to which the new well-defined species appear suddenly and quickly. These species remain unchanged for a long time as they occur because of mutations in genes.
This phenomenon suggests that once it made in the fossil record the population becomes stable for a long time until they become extinct and have to adapt to the changes take place to survive.
For each of the following
statements, say whether it is true for mitosis only, meiosis only,
both, or neither
(a) The DNA is replicated before cell division starts.
(b) The homologous chromosomes pair up during division.
(c) The cell divides only once during the process.
Answer:
A-Both
B-Unknown but you said it was fine
C- mitosis
Explanation:
Mitosis and meiosis both have interphase, in which dna is replicated (synthesis). B I don’t know, hopefully you can get that one figured out—sorry :(. Meiosis occurs twice, which is why it results in 4 cells (gametes). Hope this helps a little :)
The antibiotic rifampicin blocks transcription in many bacteria. In the presence of the antibiotic, adding sigma factor has no stimulating effect on RNA synthesis. A footprinting experiment on a rifamycin treated sample shows that the polymerase remains located at the promoter site in the presence of eNTPs and Mg2 ion. What step of transcription is rifamycin likely to block
Answer:
transcription initiation
Explanation:
Transcription is a process by which genetic information from DNA is used to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently utilized to synthesize a protein by a process called translation. Transcription in prokaryotes has three steps:
1-Initiation: the RNA polymerase is a multisubunit enzyme (holoenzyme) composed of two α, one β, one β’ and one ω and σ subunits (α2ββ’ωσ). This holoenzyme binds to the promoter region of the template DNA strand.
2-Elongation. The sigma σ factor of the holoenzyme is released and the complex and the core enzyme (α2 ββω) moves along the template strand, thereby producing an mRNA sequence
3-Termination. This step can be Rho-dependent, where a protein named "Rho" recognizes the termination site and stop transcription, and Rho-independent (transcription continues until the termination sequence is reached).
In consequence, Rifamycin is likely to block the initiation of transcription because the core RNA enzyme needs to bind the sigma factor (σ) for initiation of transcription in bacteria.
Wind on Earth happens due to the:
A. Constant movement of the air through the convection cycle.
B. Temperature differences between the poles and the equator.
C. The Sun heating different parts of the Earth unevenly.
D. All of the above
Choose one correct answer.''
Answer: Hewo, there! your answer is Below
D. All of the above
Explanation:
Wind is the movement of air caused by the uneven heating of the Earth by the sun. ... Warm equatorial air rises higher into the atmosphere and migrates toward the poles. This is a low-pressure system. At the same time, cooler, denser air moves over Earth's surface toward the Equator to replace the heated air.
Hope this helps you
Have a great day!!
Answer:
Hello! Your answer would be, D) All of the above.
Explanation:
The energy that drives wind originates with the sun, which heats the Earth unevenly, creating warm spots and cool spots. Two simple examples of this are sea breezes and land breezes. Sea breezes occur when inland areas heat up on sunny afternoons. That warms the air, causing it to rise.
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Please help I’ll mark you as brainliest if correct! #10
Answer:
H dominant
Explanation:
If a trait has two possible outcomes and one is expressed over the other, it means one is dominant and the other is recessive. Dominant traits are expressed when there is at least one dominant allele (can be Aa or AA). Recessive traits are expressed only if both the alleles are recessive (has to be aa). If the trait is being expressed over the other one it is a dominant trait.
Visit the link below and use the information to answer the following question.
Ecological Succession: Transformation of Communities over Time
Why does secondary succession occur faster than primary succession?
Answer:
Because there is already presence of soil and nutrients in secondary succession
Explanation:
Ecological succession, which is the series of gradual change that occurs in a community over time, can be of two forms namely: primary succession and secondary succession.
- Primary succession is a kind of succession that occurs in a barren land where no form of life has existed before while secondary succession occurs on a land that has been previously colonized by certain organisms called PIONEER SPECIES, and hence, a substrate containing nutrients called SOIL for growth is available during secondary succession.
This accounts for the reason the secondary succession is faster than the primary succession because there is already presence of soil and nutrients in secondary succession.
Answer:
Soil with nutrients is already present. Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.
Explanation:
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following the laws of Convervation of matter, 10 grams of iron combined with 5 grams of sulfur will yield _____ grams of iron sulfide
Answer:
15
Explanation:
Since the law of conservation of mass applies to all the chemical reactions this will also end in 10+5 equalling 15 grams
What is the speed of a runner who travels 20m in 10s?
Answer:
2m/s
Explanation:
speed =distance ÷time
What is the answer to that question
Answer:
D. Steps to use for doing the Heimlich maneuver
Explanation:
That's what the section is talking about.
what are the functions of bioreactor?
Answer:
The pricipal function of a accuretely designed bioreactor is to give a controlled environment to achieve optimal growth and/or product formation in the particular cell system employed.
Taking two aspects of their relationship, explain how the marriage of the Prophet and Khadija set a good example for Muslim marriages today?
Answer:
Due to their behaviour towards each other.
Explanation:
The marriage of the Prophet and Khadija set a good example for Muslim marriages today because their strong relationship and respect towards each other is the key to their beautiful marriage life. In marriage life, both husband and wife has great contribution to their relationship. If both husband and wife respect each other and support in every situation of life so their relationship will be strong and they live a beautiful marriage life so we can say that the marriage life of Prophet (S.A.W) and Khadija is a good example for all Muslims.
What is the correct equation for the breakdown of ozone? please answer quick
Answer: This electricity converts the oxygen molecule to ozone. Our equation is as follows: 3O2 + energy = 2O3.
The correct equation for the breakdown of ozone can typically occur in a series of two steps known as the destruction of ozone. It is illustrated thus;
Cl + O3 ⇒ ClO + O2ClO + O ⇒ Cl + O2The net reaction of the above process is the reaction of an oxygen atom with an ozone particle to form two molecules of oxygen.
The catalyst in this reaction is chlorine because it undergoes changes as the process continues while ozone is removed in the process. In the presence of sunlight, atomic oxygen is formed.
This entire process is referred to as the destruction of ozone.
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