At each step, a dichotomous key divides proof of identity into two mutually preferential options. To use the key, the scientist begins at the top and determines which of the two options applies to their organism. The key directs them to a new question based on their response.
What is dichotomous key?This key aids in the identification of organisms by directing the attention to identify the organisms.
The steps to use a dichotomous key are:
Organize the characteristic of the organism.Divide the specimen.Draw a dichotomous key either text-based or graphical.Check out for the unknown organism.Thus, these are the steps that the bird-watcher can use for identifying the bird.
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The process by which small, measurable changes occur in a population from generation to generation is called ____________ , while changes in populations over long periods of time refer to the process of ____________ .
Answer:
microevolution,
macroevolution
Explanation:
The process by which small, measurable changes occur in a population from generation to generation is called microevolution, while changes in populations over long periods of time refer to the process of macroevolution.
hope it helps you;
The genetic material of an organism is composed of:.
The genetic material of an organism is composed of DNA And RNA.
DNA(Deoxyribo Nucleic Acid)is the hereditary materials in humans and almost in all organisms.
RNA(Ribonucleic Acid)is a linear molecule composed of four types of smaller molecules called ribonucleotide bases.
Fleas living on a dog are examples of what symbiotic relationship? .A .mutualism .B competition .C parasitism .D predator-prey
In the hierarchy of organisms, the ecosystem
level is the first that includes which of the
following?
A. biotic factors
B. abiotic factors
C. niches
Answer:
B
Explanation:
In the hierarchy of organisms, the ecosystem level is the first that includes abiotic factors. The correct option is B.
What is a hierarchy of organisms?
The systemic classification of organisms into levels, such as the Linnaean taxonomy, is referred to as biological hierarchy (a biological classification set up by Carl Linnaeus).
It arranges living things into kingdoms, phyla, classes, orders, families, genus, and species in order of decreasing complexity. The eight levels of the present taxonomic hierarchy, from lowest to highest, are as follows: species, genus, family, order, class, phylum, kingdom, and domain.
A multicellular organism's body is organized at many levels, beginning with the cell. Organs are formed from tissues, which are composed of cells. Organs are arranged into organ systems, and then an organism is formed.
Therefore, the correct option is B. abiotic factors.
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What is the role of oxygen in aerobic respiration?.
The role of oxygen in an aerobic respiration is to break down glucose
Which of the following is an example of a consumer? A. water B. Plant C. Rock D. Fish
Answer:
Fish
Explanation:
Fish eat they don't produce their own food.
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What type of plant adaptation is a thick, woody stem?
Life cycle difference
Inherited behavior
Physical characteristic
Stages of growth
that would be C phisical characteristic
Answer:
c) Physical characteristic
Explanation:
A thick and woody stem are physical characteristic of a plant adaptation. These are not due to life cycle difference and inherited behaviour. Therefore, the option (c) is the correct answer.
Suppose a mutation in a jungle plant leads to the growth of much larger leaves.
Would this be a helpful or a harmful mutation? Why?
What if anything, does the bee get from its relationship with the flower
Answer: supply of food \_(^-^)_/
Explanation:
Answer these please.
Answer:
i am not doing your work for you
Explanation:
read then work out the problem duh! only if it was one quistion i would help
Which wire, when current flows through it, would be surrounded by the strongest magnetic field?
The current flows through it, would be surrounded by the strongest magnetic field towards north.
How does the right hand rule apply?This relationship is represented by the right-hand rule: the thumb of the right hand indicates the conventional direction of electric current; and the other fingers, by wrapping the conductor through which the current passes, give the direction of the magnetic field lines
By right-hand rule, if the right-hand thumb points in the direction of a current, the magnetic field at a point will be given by the direction of curl of fingers at that point.
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Prokaryote cells have three basic parts.
True
False
Answer:
true
Explanation:
Which word has a stronger connotation than the word mad? (1 point)
O upset
O alert
Ofurious
O disappointed
Answer:
Furious,
Explanation:
it has to be furious because, if you are disappointed, alert, or upset, then you could be mad but you aren't really more than mad.
This is why I chose furious.
What are the possible allele combinations the following parent to give to their offspring?
*Note: distribute
YyRr
Answer:
bb or BB
Explanation:
it depends on what the examiner gives you
What is hypertension AND how is it prevented?
Answer:
Hypertension is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. Blood pressure is determined both by the amount of blood your heart pumps and the amount of resistance to blood flow in your arteries. The more blood your heart pumps and the narrower your arteries, the higher your blood pressure.For most adults, there's no identifiable cause of high blood pressure. This type of high blood pressure, called primary (essential) hypertension, tends to develop gradually over many years. Some people have high blood pressure caused by an underlying condition. This type of high blood pressure, called secondary hypertension, tends to appear suddenly and cause higher blood pressure than does primary hypertension. Various conditions and medications can lead to secondary hypertension, including:
Obstructive sleep apnea
Kidney disease
Adrenal gland tumors
Thyroid problems
Certain defects you're born with (congenital) in blood vessels
Certain medications, such as birth control pills, cold remedies, decongestants, over-the-counter pain relievers and some prescription drugs
Illegal drugs, such as cocaine and amphetamines
Answer:
Hypertension is when blood pressure is too high. It can be prevented by doing things such as eating healthier foods, not doing any smoking, being physically active, getting enough sleep, and maintaining a healthy weight.
Analyze the pyramid representing the energy flow through an ecosystem. Select the phrases that accurately describe the flow of energy in this ecosystem according to the image here. Select all that are correct.
A) Top carnivores obtain the maximum energy from the ecosystem.
B) Herbivores have more energy available to them than carnivores.
C) There should be fewer tertiary consumers than secondary consumers.
D) Soil organisms recycle nutrients but not energy back into the ecosystem.
E) Of the energy that is available to the producer level, only ten percent is available to the tertiary consumers.
In a typical energy pyramid, herbivores have more energy available to them than carnivores, tertiary consumers are fewer than secondary consumers, and soil organisms recycle nutrients.
Energy pyramid in the ecosystemThe producer forms the bases of the energy pyramid of any ecosystem. this is followed by the primary consumers, secondary consumers, tertiary consumers, and quaternary consumers respectively.
The population at each trophic level decreases as we move up, resulting in a form of a pyramid. Also, the amount of energy obtained at each trophic level decreases as we move upward.
Thus, one can effectively conclude that:
Herbivores have more energy available to them than carnivores.There are fewer tertiary consumers than secondary consumers.Soil organisms recycle nutrients but not energy back into the ecosystem.More on the energy pyramid can be found here: https://brainly.com/question/2515928
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3The graph below shows rate of reaction data for 2 different enzymes. One of these enzymes are
found in the stomach, the other is found in the mouth
Rate of reaction
pH
Which of these lines is more likely to indicate the enzyme found in the stomach? Explain your answer.
Why is it more difficult to treat a malignant tumor than a benign tumor?
Answer:
Explanation:
Benign tumors also usually don't need treatment. If the tumor is impacting a nearby area or causing other problems, you may need surgery to remove it. Cancerous tumors almost always require treatment with surgical removal, radiation therapy, or chemotherapy.
What is the BEST term to describe the moss's relationship with the canopy trees on which it is found?
Elimination Tool
Select one answer
A.Mutualism
B.Commensalism
С.Parasitism
D.Amensalism
E.Interspecific Competition
Why is gas exchange (think oxygen and carbon dioxide) necessary?
Answer:
Gas exchange allows the body to replenish the oxygen and eliminate the carbon dioxide.
what is the shortest wavelength?
Answer:
Violet or blue light has the shortest wavelength, making them more potent. Red or orange light have longer wavelengths, which makes them less potent.
I hope this helps :)
Explanation:
Answer:
Gamma Rays
Explanation:
Gamma rays have the shortest wavelength and the highest energy among the other waves in the electromagnetic spectrum. The wavelength of the gamma rays is less than 0.01 nanometers. Most of the gamma rays from space are blocked by the Earth's atmosphere.
question; both trypanosoma and plasmodium are different in .......
a) type of nucleus
b) ability to move
c) mode of nutrition
d) phylum they belong to
Answer:
mode of nutrition
Explanation:
hope it helps you
Select the correct answer from each drop-down menu. when a cat drops from a tree to the ground, the conversion of takes place. then cat runs up behind a mouse to obtain its food. after eating its prey, the conversion of takes place inside the cat’s body.
The correct answer from each drop-down menu is gravitational force, potential energy to kinetic energy, and then conversion of chemical energy to mechanical energy take place in this order.
What are the forms of energy conservation?During the energy transformation steps, when there is no frictional dissipation, we say that energy is conserved. That is, all potential energy is transformed into kinetic energy, and vice versa. The sum of the kinetic and potential energies of a system is called mechanics.
In this case, When a cat drops from a tree to the ground follows the gravitational force, while the conversion of up behind a mouse to obtain its food is the process of converting potential energy to kinetic energy. And at last, after eating its prey, the conversion inside the cat's body takes place the chemical energy to mechanical energy.
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What does it mean that Oxygen and Water can exist in a gas state but at vastly different temperatures?
Answer: Water molecules are strongly attracted to each other, so they remain condensed (that is, a liquid, and not a gas) at higher temperatures. Dihydrogen and dioxygen have no strong attractive forces to hold the molecules together, so they exist as gases at room temperature and pressure (that is, in our everyday lives).
Explanation:
Describe the two factors that influence the rate of weathering of rock
Answer:
rainfall and the hot temperature
Explanation:
High temperatures and a lot of rainfall increase the rate of chemical weathering.
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What condition must be met for conduction to occur
Answer:
The molecules of the substances must be touching.
Explanation:
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules
Geoffrey records the heat transfer occurring in a sample of matter as being about one half as fast as he originally predicted. He concludes that the atomic structure of this matter must be more rigid and solid, as more rigid atomic structures make the particles move less, thus decreasing the ability for it transfer heat.
Geoffrey's idea is wrong because heat transfer is fastest in solids.
What is heat transfer?Heat transfer is the process by which energy is transferred from one point to another.
During the process of heat transfer, heat energy flows from hot to colder bodies.
The three processes of heat transfer are conduction, convection, and radiation.
Heat transfer is fastest in solids and slowest in gases.
Therefore, based on the nature of heat transfer, Geoffrey's idea is wrong because heat transfer is fastest in solids.
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Identify and explain the purpose of the 4 major components in the refrigeration cycle?.
Answer:
compressor
Compression is the first step in the refrigeration cycle, and a compressor is the piece of equipment that increases the pressure of the working gas. Refrigerant enters the compressor as low-pressure, low-temperature gas, and leaves the compressor as a high-pressure, high-temperature gas.
condenser
The condenser, or condenser coil, is one of two types of heat exchangers used in a basic refrigeration loop. This component is supplied with high-temperature high-pressure, vaporized refrigerant coming off the compressor. The condenser removes heat from the hot refrigerant vapor gas vapor until it condenses into a saturated liquid state, a.k.a. condensation.
The expansion device
the job of a system’s expansion device is the same - create a drop in pressure after the refrigerant leaves the condenser. This pressure drop will cause some of that refrigerant to quickly boil, creating a two-phase mixture.
This rapid phase change is called flashing, and it helps tee up the next piece of equipment in the circuit, the evaporator, to perform its intended function.
evaporator
The evaporator is the second heat exchanger in a standard refrigeration circuit, and like the condenser, it’s named for its basic function. It serves as the “business end” of a refrigeration cycle, given that it does what we expect air conditioning to do – absorb heat.
This happens when refrigerant enters the evaporator as a low temperature liquid at low pressure, and a fan forces air across the evaporator’s fins, cooling the air by absorbing the heat from the space in question into the refrigerant.
Gerald performed an experiment to determine if photosynthesis was affected by the color of light that a plant received. The data from his experiment are shown in the table below.
Color of Light
Number of plants
Average volume of oxygen produced (mL)
green
4
0.50
orange
4
2.0
blue
4
5.0
Which format should he use to present his data?
bar graph
chart
line graph
pie graph
A spongelike, brown material is ______. It is made of partly decomposed plants.
A) biomass
B) ethanol
C) geothermal
D) geyser
E) peat
Answer:
E. Peat
Explanation:
Peat is decomposed plants that can be used for fuel.
Answer- E) peat
Hope this helps