Answer:
Scientific theories can never be proven true beyond all doubt; they can only be supported by a wide body of evidence. Only one of the statements that follow uses the term theory in its correct, scientific sense.
Explanation:
Scientific hypotheses can never be confirmed beyond a reasonable doubt; they must be backed up by a substantial amount of evidence. Only one of the following assertions utilizes the word "theory" in the scientific sense.
The most common human health response to air pollution is:.
Answer:
coughing
Explanation:
your lungs don't like the air pollution
A client has recently received a pneumococcal vaccine and the client's B cells are consequently producing antibodies. Which cells may enhance this production of antibodies
Lymphocytes are the cells that enhance production of antibodies.
Which cells may enhance production of antibodies?Lymphocytes are the cells responsible for immunity. Lymphocytes are divided mainly into B and T cells. B lymphocytes produce antibodies that recognize antigen and attach themselves to them.
So we can conclude that Lymphocytes are the cells that enhance production of antibodies.
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Describe two effects that ingesting microbeads has on aquatic organisms.
Answer:
micro-beads can cause blockages in the digestive tracts of aquatic organisms.
This can prevent digestion of food hence the organism will eventually die of starvation.micro-beads can increase organic matter in a pond hence killing the aquatic organisms present.
This increases the number of decomposers which grow rapidly and use a great deal of oxygen during their growth and lead to depletion of oxygen as the decomposition process occurs. A lack of oxygen can kill aquatic organisms.Explanation:
someone please help with this question!! giving brainliest.
Place the phases of the Moon in the correct order, starting with the new Moon.
pls help ill give brainliest and 5 staarts
Peat is a mixture of partially decomposed plant and animal material found in waterlogged, acidic, anaerobic environments. people debate whether peat is a fossil
fuel. to be considered a fossil fuel, a material must be of biologic origin, be used as a source of energy, and replenish on a time scale greater than human
lifetimes. peat reserves have declined over time. however, peat harvesters claim that a restoration process
can make peat a renewable resource and allow it to
be classified as a biofuel. the restoration process is outlined in the table.
stages of peatland restoration
stage description
time
rewetting makes surface wet again 3-5 years
renaturation replaces vegetation several decades
regeneration accumulates new peat 100 years or more
which conclusion can be drawn based on the information in the table?
оа.
ов.
peat is a fossil fuel because rewetting it takes only 3-5 years.
peat is a fossil fuel because the total time for restoration is lengthy.
peat is not a fossil fuel because it has blologic origins, making it a biofuel.
peat is not a fossil fuel because humans can promote the replenishment of peat.
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Based on the data from the restoration process of peat, it can be concluded that peat is a fossil fuel because the total restoration time is lengthy.
What are fossil fuels?Fossil fuels are fuels produced from the remains of dead plants and animals which decomposed under intense heat and pressure over a long period of time.
Fossil fuels are non-renewable energy sources because their time of replenishment is longer than a human lifetime.
Examples of fossil fuels include:
petroleum cokepeat.In the restoration process of peat, the restoration time takes a long time of over 100 years.
Therefore, it can be concluded that peat is a fossil fuel because the total time for restoration is lengthy.
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You sample 1,000 individuals from a large population for the mn blood group, which can easily be measured since co-dominance is involved (i.e., you can detect the heterozygotes). they are typed accordingly:
Co-dominance in the mn blood group means that both allele characteristics are expressed in the organism.
What is co-dominance?Co-dominance is a form of inheritance whereby two or more alleles for a given trait are both dominant such that when they both appear in an organism, the phenotype of that organism reflects the characteristic of both traits.
Co-dominance is usually seen in blood group typing.
In blood group typing, there are two alleles that A and B which are both dominant. When both alleles are present, the blood group is AB and the phenotype of the organism is a result of the properties of both alleles, thus allele A and B are said to be co-dominant.
Therefore, co-dominance in the mn blood group means that both allele characteristic are expressed in the organism.
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HELLLLPPPPP
1. Find the graph paper in your kit and graph your results by putting the generation number along the x-axis and the number of bears along the y-axis. When drawing the lines, use a different color to represent each type of bear. (Make sure to indicate which color goes with which type of bear.)
2. Summarize the trends you see in each population from each generation.
a. Dark bears-
b. Light bears-
3. Explain how this experiment demonstrated natural selection.
Based on the nature of their environment, natural selection will favor the bear type that is better suited to its environment.
What is natural selection?Natural selection is a process of evolution in which organisms which are better suited to their environment are selected for survival.
In the bear population, natural selection will favor each bear type that is better suited to its environment.
In cold and icy environments, the light bears are better suited to their environment and are naturally selected for survival.
In temperate and warm climates, dark bears are better suited to their environment and are naturally selected for survival.
Therefore, natural selection will favor the bear type that is better suited to its environment.
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Answer:
THIS PROBABLY ISNT 100% ACCURATE, AND BE SURE TO CHANGE UP SOME OF THE ANSWERS
1. Find the graph paper in your kit and graph your results by putting the generation number along the x-axis and the number of bears along the y-axis. When drawing the lines, use a different color to represent each type of bear. (Make sure to indicate which
color goes with which type of bear.)
Okay, this is REALLY simple. Just make a graph with the info given to you.
2. Summarize the trends you see in each population from each generation.
a. Dark bears— Dark Bears with their arms up always had double to amount of the Dark bears with their arms down, and past Generation 3 the Dark Bears had more numbers than the Light Bears
b. Light bears— Light Bears start off with only arms down, and when arms up bears are introduced, they are more common/prevalent for the majority of the generations, having usually twice as much as the bears with the arms down.
3. Explain how this experiment demonstrated natural selection.
This experiment shows natural selection by hosting events in which certain bears are put more at a risk than other bears, such as environment changes favoring dark bears, or bears with their arms up.
4. If the environmental situation changes, is it possible for a population to be restored?
Via adaptations, it is completely possible for a bears population to thrive again, but perhaps not with the same characteristics.
5. How can natural selection help explain how a population becomes extinct?
As the environment changes, it may favor a species less and less, which leads to their decline, if they are unable to change with the times and adapt, the species will go extinct as it is no longer fit in its environment.
6. Which generations saw a population altering incident? Use your imagination to invent a possible environmental incident that could have caused this shift in populations.
The Light Bears faced a decline, and most bears with their Arms Down faced a decline too. Light bears could be explained via environmental factors, such as their original habitat being snowy, and without the snow they're more visible given their lighter colors. Arms down could simply be a dominants v recessive trait
7. How can environment impact a particular population of a species?
If a certain species is not fit for the changes made in an environment, it could result in either their extinction, or a mutations/adaptations so that the species can continue to thrive.
8. What are some natural reasons that animals in a population might die?
Competition, not enough resources, environmental changes.
9. What are some man-made reasons that animals in a population might die?
Things such as deforestation, overhunting, and introducing invasive nonnative species.
10. What are some ways that man has helped animals maintain their populations?
Protecting endangered species, rehabilitating injured animals, making animal reservations, etc.
Explanation:
Which of the following is not needed by living organisms?
A.alcohol
B.air
C.energy
D.water
Answer:
alcohol
Explanation:
it is very bad for our health so we dont need it in our life
PLEASE HELP!!
How does Pavan believe we should think about the value of a mangrove tree?
Answer:
who is pavan. value???
Explanation:
8. What is one way to cut your risk of developing cardiovascular disease?
Answer:
there are quite a few ways to limit your chances of developing cardiovascular disease, which i will list below
Explanation:
the chances of getting cardiovascular disease, also known as heart disease, can be limited by controlling your blood pressure, keeping your cholesterol levels under control, getting exercise, staying at a healthy weight and maintaining a healthy diet
hope this helps
An individual suffers a blood clot in an artery that delivers blood to his leg. The leg begins to take on a blue hue, becomes colder than the rest of his body and he experiences numbness in the leg. He is most likely experiencing.
Phase of the moon where only a very small part of the lit surface is seen from Earth.
O Gibbous
O Quarter
O Crescent
O Full
Answer:
quarter, if i am correct. i am pretty sure that the crescent is just a little bigger.
The phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.
What is the phase of the moon ?Lunar phase is the phase of moon which is viewed from the earth, the lunar phase is also known as moon phase is a shape of moon's directly sunlit portion and it can be expressed quantitatively.The current moon phase for today is the new moon phase.
The moon is known as earth's only natural satellite and combinedly with earth it forms the earth-moon satellite system.
The size of moon is one quarter of earth in diameter. It is fifth largest satellite in the solar system.
The distance of moon from earth is 384,400 km. The radius of moon is 1,737,4 km. The gravity of moon is 1.62 m/sec^2.
The total surface area of moon is 3.793×10^7 km square and it's surface pressure is 10^-7 Pascal.There are total 8 phase of moon and these are new moon, first quarter, waxing gibbous, third quarter and waning crescent.
Therefore the phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.
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Choose the best answer.
The ____ covers the outside of the cell and keeps the contents inside.
a. plasma membrane
b. cell wall
c. ribosome
d. cytoplasm
Answer: a. plasma membrame
Explanation:
it's not b becasue a cell wall is composed of many cells. c and d are compoments of a cell found within it. which leaves us with a. plasma membrame, the protective layer that seperated the cell with its outside environment.
hope this helped! ♡
The physical appearance of an organism is known as its
A. genotype
B. phenotype
C. allele
D. testcross
Answer:
B.Phenotype
Explanation:
The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
there are three categories of chemical reactions based on changes in chemical structure. The first category is
Which country would most likely be affected by a typhoon?.
Answer:
The Philippines.
Explanation:
The Philippines receive the brunt of the landfalls, with China and Japan being less often impacted.
label the parts of cells using words from the word bank?
1. organelles
2. membrane
3. cytoplasm
4. nucleus
biologydictionarynet
I need help this is for 20 points.
Answer:
Below
Explanation:
Square One:
Top Left: TT
Top Right: Tt
Bottom Left: TT
Bottom Right: Tt
Two:
TL: Tt
TR: Tt
BL: tt
BR: tt
Three:
TL: BB
TR: Rr
BL: Rr
BR: rr
Four:
TL:RR
TR: RR
BL: Rr
BR: Rr
2. First square: top is T then t, the side is t then T
Second: top is T then t, side is T then t
Third: top is R then r, side is r then r
Fourth: All R
How does the destruction of forests contribute to levels of atmospheric carbon?.
Answer:
This happens when the trees are cut down and burned, as the stored carbon was released into the air it converted into Carbon Dioxide.
Hope this helps you.
Which of the following is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce? a. Cargo ship hulls b. Recreational boats c. Escape from aquariums d. Migration Please select the best answer from the choices provided A B C D.
The nonnative organisms are introduced to new aquatic ecosystems in option "D" which is migration.
What is an aquatic ecosystem?An aquatic ecosystem is an ecosystem in and encircling a body of water, indifferent to land-based terrestrial ecosystems.
Aquatic ecosystems have communities of organisms that are dependent on each other and on their environment.
Thus, migration is not a way that nonnative organisms are presented to new aquatic ecosystems related to trade.
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Question 8 of 10
A forest fire burns down all of the trees in a large forest. The animals that
lived in the trees are forced to move to other areas. What kind of disturbance
is this?
A. Seasonal
B. Catastrophic
C. Cyclical
O D. Small-scale
What do you notice about each beaker?
Answer:
The less sugar added into mixture, the less volume of mixture and less inflated the balloon becomes
Explanation:
In certain flowers, blue and yellow flowers are incompletely dominant to each
other. Show the cross between a pure blue flower and a pure yellow flower
The cross between a pure blue flower and a pure yellow flower is attached as an image. The genotypes of the parents are as follows:
Pure blue flower = BBPure yellow flower = YYWhat is incomplete dominance?Incomplete dominance is a type of non-mendelian inheritance in which the alleles of a gene are neither dominant nor recessive over one another, hence, an intermediate phenotype is produced.
According to this question, blue and yellow flowers are incompletely dominant to each other in certain flowers.
The genotype of pure blue flower = BBThe genotype of pure yellow flower = YYA cross between BB × YY will produce an intermediate phenotype different from both parents.
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Which element provides strength to the exoskeletons of clams and oysters?
sulfur
oxygen
hydrogen
phosphorus
Answer:
phosphorus
Explanation:
Since Phosphorus is an essential component of phospholipids, nucleic acids, phosphoproteins (casein), high energy phosphate esters (ATP), hexose phosphates, creatine phosphate, it also provides strength to the exoskeletons of clams and oysters.
Answer:phosphorus
Explanation:
how are volcanoes like windows to the inside of Earth
Answer:
They emit steam and volcanic gases, such as sulfur dioxide and carbon dioxide. Fumaroles create pathways for rising heat, volcanic gas, and magma. Openings stemming down into the pool of magma. Cracks and fumaroles act like a window so scientists can get a glimpse of the gases inside volcanoes.
Explanation:
Called the "Fourth Force" What is the most dominant influence in the field of psychology, including
psychotherapy
Answer:
Transpersonal psychology, as the fourth force in psychology, has emerged from humanistic psychology (the third force) in much the same way that humanistic approaches emerged from their behavioral and analytic foundations
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The instructions in ______ encode the information that a cell needs to produce proteins, which are vital to living things. Multiple choice question.
Answer:
DNA
Explanation:
The instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.
The instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.
What is DNA?DNA, also called deoxyribonucleic acid, is the part of a living being that carries genetic information.
The DNA encodes the information needed to synthesize proteins in living organisms.
Therefore, it can be said that instructions in DNA encode the information that a cell needs to produce proteins, which are vital to living things.
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Q7 What can we hear but cannot touch?
Answer:
sound: because sound we can hear it, when someone says something to you, you can hear it but you cannot you cannot touch it