Answer:
cause lungs have air in them
Explanation:
the other organs have an entire mass, but lungs have air in them, so then float
The real length of one villus is 0.8 mm
Calculate the image length if the villus is viewed at a magnification of x20
magnification = size of image / size of real object
Answer:
Explanation:
Re arrange formula=Size of image=Magnification*size of real image
0.8mm*20=16mm
The image length will be "16 mm". A further explanation is below.
Given:
Magnification,
20Size of real image,
0.8 mmAs we know the formula,
→ [tex]Magnification = \frac{Size \ of \ image}{Size \ of \ real \ image}[/tex]
or,
→ [tex]Size \ of \ image=Magnification\times Size \ of \ real\ image[/tex]
By substituting the values, we get
→ [tex]=20\times 0.88[/tex]
→ [tex]= 16 \ mm[/tex]
Thus the response above is correct.
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1. Explain why the greenhouse effect is necessary but how an enhanced greenhouse effect can harm the planet.
2. Define global warming and explain what has caused the recent trend of warming that the earth is experiencing.
3. Explain why Earth's temperature is directly affected by the amount of greenhouse gases in the atmosphere.
4. Define carbon sequestration and explain how deep geologic burial of carbon works.
5 Describe the connection between fossil fuel burning, the melting of polar ice, and the rising of global sea levels.
Answer:
1. The enhanced greenhouse effect disrupts the Earth's climate equilibrium and has led to an increase in the global average surface temperatures.
2. Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the "greenhouse effect" 1 — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping.
3. Greenhouse gases absorb some of the energy and trap it in the lower atmosphere. Less heat radiates into space, and Earth is warmer. ... Carbon dioxide, methane, water vapor, and nitrous oxide are naturally present in Earth's atmosphere.
4. Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one method of reducing the amount of carbon dioxide in the atmosphere with the goal of reducing global climate change.
5. As climate change caused by burning fossil fuels drives temperatures higher, the ocean warms, causing it to expand. ... Scientists have found that water draining from melting glaciers and ice sheets in polar and mountain regions is now also contributing to this rise in sea levels.
Answer: 1. Necessary because it keeps heat in and keeps the planet at the right temperature for life.
It can harm the planet if more pollution occurs and the greenhouse gas effect traps too much heat and causes global warming. 2. Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the "greenhouse effect"1 — warming that results Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. The greenhouse effect keeps Earth's climate comfortable when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. 3. Human activities contribute to global warming by increasing the greenhouse effect. ... Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. 4. Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one method of reducing the amount of carbon dioxide in the atmosphere with the goal of reducing global climate change. Geologic carbon sequestration is the process of storing carbon dioxide (CO2) in underground geologic formations. The CO2 is usually pressurized until it becomes a liquid, and then it is injected into porous rock formations in geologic basins. 5. As climate change caused by burning fossil fuels drives temperatures higher, the ocean warms, causing it to expand. This expansion in turn causes sea levels to rise. ... There is now so much warming baked in to the global climate system that sea levels will continue to rise for centuries.
Explanation:
Which statement best describes the function of the nervous system in the body?
O to protect other organs and tissues
O send messages to body parts using only chemicals
O to gather information through the senses (stimuli) and also control all other body systems
O to transport oxygen and carbon dioxide
Answer:
i think that the answer might be B
Which is true for urochordates? *
where is wind energy taken from
Answer:
The sun's uneven heating of the atmosphere, changes in the earth's temperature, and the earth's rotation all contribute to wind. Wind flow patterns are influenced by mountains, bodies of water, and plants. Wind turbines work by spinning propeller-like blades around a rotor to turn wind energy into electricity.
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Which kingdom includes multicellular, heterotrophic organisms that absorb nutrients from other dead organisms?
Protista
Animalia
Plantae
Fungi
Answer: Fungi
Explanation:
WILL GIVE BRAINLIST!!!! What effects do weathering, erosion, and deposition have on agriculture in Texas?
Answer:
cause the soil to become less fertile therefore causing the loss of nutrients and farmers can no longer plant crops causing profits to drop.
Explanation:
___________________1. When acted upon by an unbalanced force, an object at rest will do what? ___________________ 2. What equation allows you to calculate Newton’s Second Law of Motion? 3. Newton’s Second Law of Motion shows a relationship between _________________, _______________________ and ________________________. 4. Force is measured in a unit called _____________________. FILL IN THE BLANKS PLEASE!!!
Answer:
1. stay at rest
2. F = ma, or force is equal to mass times acceleration.
3.?
4.Kilogram-force: kgf
Explanation:
your welcome
Identify the bonds formed between RNA nucleotides by RNA polymerase.
A. Ester
B. Glycosidic
C. Peptide
D. Phosphodiester
Answer:
D. Phosphodiester
Explanation:
Just as the DNA polymerase serves as a catalyst in the replication of the DNA, so does the RNA polymerase speed up the formation of the RNA. RNA polymerase performs its function of linking nucleotides when the phosphodiester bonds are formed in the 5' to 3' sequence. Nucleoside triphosphate precursors such as the Adenosine triphosphate, Cytosine triphosphate, and Guanosine triphosphate serve as the substrates that allow the formation of the RNA molecule.
When the RNA polymerase unwinds the double helix structure of the DNA found before the active site where the polymerization will occur, substrates can then pair themselves in a complementary form.
. What does Carbon Dioxide do to the Earth's temperature?
Carbon dioxide is a greenhouse gas that absorbs and radiates heat, so it traps additional heat and raises Earth's temperature
William built a machine that recycles metal. When
William places metal on the machine's conveyor
belt, the belt begins to move, pulling the metal
toward the rest of the machine. The machine uses
energy to break down the metal so it can be reused.
What characteristics does William's machine share
with living things?
O A. The machine responds to its environment
and reproduces new machines of its own
kind.
O B. The machine responds to its environment
and uses energy.
O C. The machine reproduces new machines of
its own kind and uses energy.
O D. The machine reproduces new machines of
its own kind and is made of cells.
Answer:
O B. The machine responds to its environment
and uses energy.
Explanation:
also THE MAN BEHIND THE SLAUGHTER im soo sorry i had to (≧w≦)
Compare and contrast suspension feeding and deposit feeding-
Answer:
Suspension feeding involves collecting food particles like small organisms, organic matter, detritus which are suspended in water, often using some form of filtration.
Suspension feeders catch food or organic material from the water using tentacles or spiny arms
where as
Deposit feeding involves feasting on detritus and organic matter that have settled on the ocean floor.
Deposit feeders pass sand, mud, water or sediment into their mouths using mucous-covered tentacles or arms etc.
Explanation:
Suspension feeding ingests the food particles which are suspended in water, while deposit feeding ingests sediments and aquire foods.
What do you mean by Deposit feeders?Deposit feeders may be defined as those aquatic organisms that forage on organic matter that settled down on the bottom.
Suspension feeding maintains the water quality in the aquatic environment, while deposit feeding enhances oxygen level and nutrient cycling.
Suspension feeding occurs similarly to filter-feeding that only ingests suspended particles. While deposit-feeding ingests the deposited particles like detritus, organic matter, etc.
Therefore, it is well described above.
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What are all the systems that work with the nervous system
Answer:
There are many hidden interactions going on within your body. Your endocrine system works closely with your brain and central nervous system to control the creation of specific hormones and enzymes. Your digestive and excretory systems work with the nervous system in both conscious and unconscious ways.
Explanation:
Hope it helps! Correct me if I am wrong :>
Im sure about my answer!
If you dont mind can you please mark me as brainlest?
Which of the following is NOT one of the Nervous System Functions?. Single choice.
(1 Point)
1.To detect changes and feel sensations
2. To initiate appropriate responses to changes
3. To organize information for immediate use and store it for future use
4. Absorb extra fluid between the cells
Answer:
4. Absorb extra fluid between the cells
Explanation:
The nervous system (SN) is a complex system that acts to receive sensory information through nerves, transmit this information via the spinal cord and finally process it in the brain. The SN has three main roles: sensory input, processing and motor output. The SN can be divided into the central nervous system (composed of the brain and spinal cord), and the peripheral nervous system (composed of those nerves located outside the brain and spinal cord). Moreover, the extracellular fluid between the cells comprises four types of fluids: 1-intravascular fluid (blood), 2-interstitial fluid, 3--transcellular fluid and 4-cerebrospinal fluid. The excess of these fluids is absorbed by the capillaries of the lymphatic system.
Please help and thank you whoever you are
Answer: Should be 3
How is liver malfunction likely to affect digestion?
O A. It will affect the digestion of high-protein foods.
O B. It will affect the digestion of high-fiber foods
O C. It will affect the digestion of fatty foods.
O D.
It will affect the digestion of fruits.
Answer:
C
Explanation:
It will affect the liver because the liver helps to store fatty foods
Pls help meeee I’m stuck and thank you so much
Answer:
The answers is b
Into what kingdom would each of the following be classified: Unicellular prokaryotes that live in dust. ______________________ Unicellular eukaryotes that line in pond water. _____________________ Multicellular eukaryotes that live all over the planet and consume food. ______________________ Unicellular prokaryotes that live in volcanic ash. _________________________ Multicellular eukaryotes that have cell walls and are heterotrophic. _______________________ Multicellular eukaryotes that have cell walls and are autotrophic. ________________________
Answer:
Unicellular prokaryotes that live in dust: Eubacteria
Unicellular eukaryotes that line in pond water: Protista
Multicellular eukaryotes that live all over the planet and consume food: Anamalia
Unicellular prokaryotes that live in volcanic ash: Archaebacteria
Multicellular eukaryotes that have cell walls and are heterotrophic: Fungi
Multicellular eukaryotes that have cell walls and are autotrophic: Plantae
Explanation:
Prokaryotic organisms can be classified into two groups: Eubacteria and Archaebacteria. Eubacteria (i.e.,“true” bacteria) are unicellular prokaryotic microorganisms that live in normal environmental conditions. On the other hand, Archaea (Archaebacteria) are prokaryotic older organisms that thrive in extreme conditions (in this case, volcanic ash). Moreover, eukaryotic organisms can be classified into four kingdoms: Protista, Plantae, Fungi and Animalia. Protista are unicellular eukaryotes that live in different aquatic environments (i.e., oceans, ponds, streams, etc). Animals are multicellular, mobile, heterotrophic (i.e., organisms that cannot produce its own food) organisms whose cells lack walls. Fungi are heterotrophic organisms that acquire their food by absorbing dissolved organic compounds, whose cells have cell walls (but they lack chloroplasts). Finally, plants are multicellular autotrophic (i.e., organisms that produce their own food) organisms whose cells contain walls and chloroplasts (to produce food by photosynthesis).
how does the antigen-antibody complex protect the body
Answer:
Explanation:
the antibodies destroy the antigen (pathogen) which is then engulfed and digested by macrophages. White blood cells can also produce chemicals called antitoxins which destroy the toxins (poisons) some bacteria produce when they have invaded the body.
PS: PLEASE DO NOT PUT A LINK I AM NOT GOING TO OPEN THE LINK IN THE ANSWER SECTION!!
what are the improvements in human society that have allowed the human population to increase in size exponentially? (choose all that apply)
a. agriculture
b. cleanliness
c. industry
d. medicine
Answer:
medicine................
Answer:
a. agriculture
b.cleanliness
d. medicine
Explanation:
took the test! :)
What do the arrows represent?
the magnetic field
thermal energy
light energy
the electric field
Answer:
the answer is A
Explanation:
Answer:
A. the magnetic field
Explanation:
Have a nice day/night :D
explain how inbreeding dogs for good or perfect trait also produces bad or disease traits as well
Answer:
Inbreeding can cause a weaker dog from inbreeding it will not be as immune to stuff that non inbreed dogs would be if that makes since.
Explanation:
I know this cuz my gramps shows and breeds dogs and i breed goats. If you don't get it tell me in the comments.
Inbreeding depression can produces bad or disease traits as well.
Inbreeding between two closely related species can result in the expression of lethal recessive allele which are otherwise masked by dominant allele.These recessive gene allele can code for certain diseases which are otherwise eliminated by outbreeding.What is inbreeding depression?It is the reduced survival and fertility of offspring of related individual.It is often the result of population bottleneck.To know more about inbreeding depression here
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explain why most enzymes perform poorly at low temperatures
Answer:
Due to Kinetic energy
Explanation:
At low temperatures enzymes are simply inactive. As temperature is increased the enzymes and substrate gain kinetic energy
Which example best describes life in the Paleozoic Era?
O A. marine organisms are dominant; small organisms begin to move onto land
OB. first flowering plants appear on land; dinosaurs roam the Earth
OC flowering plants are the dominant plant life; humans convert open spaces to farm land
OD. only bacteria and algae are alive; Earth's atmosphere had very little oxygen
Answer:
your answer is A .. well I'm pretty sure it is..
9)
What is non-point source pollution of an aquatic ecosystem?
A)
pollution of freshwater sources
B)
pollution from industrial plant discharge
o
pollution that occurs over a wide area, water that runs off from fields,
parking lots, and other land surfaces
D)
pollution that can easily be identified with a single discharge source, such
as an open pipe which drains into a body of water
Which statement would be most appropriate when thanking the Band Parents Group for a large college scholarship?
A. You guys are awesome!
B. I am totally psyched about this scholarship.
C. Your generosity shall not be unacknowledged.
D. Thank you very much for this honor,
Answer: Thank you very much for this honor,
Explanation: You should act formally when talking to people who are respected. This is the most obvious choice hence the situation.
which gas is produced during phamentation
Answer:
carbon dioxide gas
Explanation:
After doing research on plants and fertilizers, a 5th grade science class states the hypothesis for their experiment; "If a plant receives fertilizer, then it will grow to be bigger than a plant that does not receive fertilizer." To test this hypothesis the students must ______________. A) make observations B) collect and record data C) determine and follow a procedure D) make observations, collect and record data, and determine and follow a procedure
Answer:
D
Explanation:
D is a combination of all three options above, and ALL those steps need to be done, so it is D.
If you are ever stuck on a problem and cannot receive help, usually the answer that is "all above" right, but not always.
2. Prokaryotes differ from eukaryotes by all of the
following characteristics EXCEPT:
A. kinds of nucleotides in their DNA
B. structure of their flagella
C. structure of their plasma membranes
D. structure of their chromosomes
E. methods of cell division
Answer:
C. structure of their plasma membranes
Explanation:
hope it helps
In horses, the allele for long legs (L) is dominant over the allele for short legs (1). What is the
probability of short legs in the offspring of parents that are both heterozygous for the trait?
Answer:
[tex]\frac{1}{4}[/tex] or 25%
Explanation:
Heterozygous means that the organism has different alleles (L1)
Draw a punnet square:
L 1
L LL L1
1 L1 11
11 is the allele for short legs so 1 in 4 of the outcomes will lead to an offspring with short legs