Drag each tile to the correct location on the image.
Place the labels to describe the role of the lungs and blood in transporting oxygen and carbon dioxide in the body.
Blood cells transport
carbon dioxide to
the lungs.
Oxygen from the
lungs enters the
alveoli in the lungs.
Red blood cells supply
oxygen to the cells of
different organs in
the body.
Oxygen enters
the red blood cells
in the capillaries.
Red blood cells
collect the waste
carbon dioxide.
Answers
Answer:
Once the oxygen diffuses across the alveoli, it enters the bloodstream and is transported to the tissues where it is unloaded, and carbon dioxide diffuses out of the blood and into the alveoli to be expelled from the body. Although gas exchange is a continuous process, the oxygen and carbon dioxide are transported by different mechanisms.
Transport of Oxygen in the Blood
Although oxygen dissolves in blood, only a small amount of oxygen is transported this way. Only 1.5 percent of oxygen in the blood is dissolved directly into the blood itself. Most oxygen—98.5 percent—is bound to a protein called hemoglobin and carried to the tissues.
Hemoglobin
Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits (Figure 20.19). Each subunit surrounds a central heme group that contains iron and binds one oxygen molecule, allowing each hemoglobin molecule to bind four oxygen molecules. Molecules with more oxygen bound to the heme groups are brighter red. As a result, oxygenated arterial blood where the Hb is carrying four oxygen molecules is bright red, while venous blood that is deoxygenated is darker red.
Answer is below got it right 5/5 on PLATO
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A species was added into a particular ecosystem to control the population of a prey species. This method of introducing a new species is called
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what type of wave must have a medium to transfer energy
Answers
Answer:
Mechanical waves
Explanation:
Mechanical waves are waves that must have a medium to transfer energy. Without a medium, mechanical waves cannot be propagated in space.
Electromagnetic waves on the other hand do not require a material medium for their propagation. They can move energy through a vacuum. Examples of mechanical waves are sound waves, water waves, seismic waves etcExamples of electromagnetic waves are x-ray, infrared, light waves.State the Two stages of photosynthesis
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Answer:
Light and Dark Reactions
What are the differences between negative and positive feedback loops?
Answers
Answer:
Negative Feedback Loops- dampen changes
Positive Feedback Loops- enhance changes
I hope this is what you are looking for!
WILL GIVE BRAINLIEST
Match the images with the correct fossil type.
A B C D E
Column A
1.
A:
A
2.
B:
B
3.
C:
C
4.
D:
D
5.
E:
E
Column B
a.Petrified
b.Carbon Film
c.Mold
d.Cast
e.Trace
Answers
are replicated so there are
sets in the cell.
Answers
Answer:
meisosis I don't rember how to spell it lol. But I believe that it is the answer
Explanation:
which phrases describe non-foliated rocks
Answers
Answer:
Non-foliated rocks have grains that are arranged randomly, and grains that do not split into layers.
Explanation:
I'm not sure what the question was asking, but I just gave phrases that described non-foliated rocks. I hope that helps?
when salt is dissolved in water, water is the what and why
Answers
Answer:
solvent
Explanation:
The solvent is the substance that dissolves another thing, in this case the water dissolves the salt
Answer: Water is the solvent because it is dissolving the salt in it. Salt is the solute.
When the suns rays pass through our atmosphere and then heat is trapped by the atmosphere it is called?
Answers
Answer:
These gases are called greenhouse gases.
Explanation:
The glass in a greenhouse has a similar effect on the Sun's rays and so it is called the Greenhouse Effect.
what is the function of silkworm?
Answers
Answer:
The silkworm is the larva or caterpillar of a silk moth. It is an economically important insect, being a primary producer of silk. A silkworm's preferred food are white mulberry leaves, though they may eat other mulberry species and even the osage orange
What is the act of adding water to crops?
Answers
Answer:
The seed of the crop absorbs the water and with sunlight, allows the crop to grow
Explanation:
Answer:
irrigation
Explanation:
irragation ; its definition is the act of adding water to crops.
the basic life functions of an organism are carried on by
Answers
Answer:
Explanation:
reach me at 16jacktwinwritters at g mail for more clarification
What affects the function of enzymes
Answers
Answer:
I think this is right......
Explanation:
Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.
HELP QUICK PLEASE!!
QUESTION IS IN SCREENSHOT
Answers
Answer:
The answer is D
Explanation:
I asked google and it make sense
Which of these organisms have been negatively affected at the species level due to human-induced environmental changes? zebra mussels and kudzu kudzu and dodo birds zebra mussels and Caribbean monk seals Caribbean monk seals and dodo birds
Answers
Answer:
d
Explanation:
what lines up with this
Answers
Answer:
ssGg goes with constricted green
ssgg goes with constricted yellow
SsGg goes with smooth green
Ssgg goes with smooth yellow
Explanation:
What dose the arrow mean in a food chain
Answers
Answer:
What eat next or what will turn into something next
Explanation:
Answer:
Arrow are used to show relationship between the organisms, things etc.
Which of the following best describes the "social sciences"?
Sciences that focus on researchers conducting objective studies
Sciences that are able to objectively measure human behavior
Sciences that focus on human behavior and society
Sciences that objectively measure natural phenomena
Answers
Answer:
c. Sciences that focus on human behavior and society
Explanation:
most logical answer
Which organelle captures the sun's energy and makes glucose (sugar)? *
O A chloroplasts
B nucleus
O C ribosomes
O D Golgi apparatus
Answers
Answer:
It would be >>O A chloroplasts
How long can a muscle move before it uses up all
the energy stored within the muscle tissue?
a.) four to six seconds
b.) fifteen seconds
c.) thirty to sixty seconds
d.) several hours
Answers
Answer: . Four to six seconds
Explanation:
Answer: A. four to six seconds
Explanation:
Which area of biological science offers the least potential for improving human health? O A. Animal structure and function B. Marine biology C. Genelling research D. Plant structure and function
Answers
Answer:
C. Genelling research
Explanation:
Not sure if it's correct but I hope this was helpful, Have a Great Day!!
What is empirical evidence?
plz hep
Answers
Answer:
Empirical evidence is the information received by means of the senses, particularly by observation and documentation of patterns and behavior through experimentation.
Empirical evidence is information that researchers generate to help uncover answers to questions that can have significant implications for our society.
Someone please help me... I’m struggling right now and I feel like having a mental breakdown because of this. The second one is the picture for the second question. Please just do the second question and not the 3 and 4 someone pls help .
Answers
A bridge may be defined as a structure built over a river, a dry valley, low land or an estuary or any depressed part of the land to provide a link between the two opposite sides. It is essentially a communication link on a road or railway track or a highway. Bridges especially over major rivers and in hilly and mountainous areas are very important civil engineering structures. Their role in socio-economic development and defence strategies can hardly be overemphasized. This is unlike tunnels, where alignment is primarily and essentially controlled by geological considerations. But, in the case of bridges also, the design, stability and durability depend, to a great extent, on the subsurface geological conditions that must be properly investigated and cautiously interpreted.
In any major bridge construction project, the designer is keen to place the bridge abutments and piers on as sound, strong and stable rock foundation below as possible. In most cases, if there is river bed below the water is covered by varying thickness of unconsolidated natural deposits of sand, gravels and boulders. Such loose materials are not safe as foundations for bridge piers for at least two reasons:
Firstly, piers placed directly on them would be unstable;
Secondly, the cover material is liable to be removed due to scouring by river water.
As such, the pier must be placed on stable foundation, preferably of rock, under a suitable thickness of cover material so that it is safe from scour by river water.
The height of pier from under the span to the foundation level, therefore, depends on the ‘depth of the bed rock’ below the river water.
Such sound bed rocks might be available within a depth varying from 5 to 20 meters below a river bed or they might not at all be available even up to 100 meter or more.
To achieve this, drill holes are made all along the centre line of the proposed bridge, even on the right or left of it, till they reach the sound rock sequence or up to a reasonable depth. Utmost care is needed not to mistake isolated big boulders buried underneath the river bed as the bed rock. Boulders are rocks but they are not bed rocks and cannot be trusted as foundations for bridge piers.
The very first rock encountered below the bed cover material may not be suitable as a foundation.
It should be kept in mind that three types of loads are to be borne by a bridge pier foundation:
i. The compressive, vertical loads due to the weight of the bridge span and that of pier material;
ii. The horizontal loads due to the thrust of the water flowing above as transmitted directly and through the pier;
iii. The dynamic, complex load, often inclined and shearing in character, due to heavy traffic on the bridge.
Consequently, the bed rock selected as foundation for the pier must be strong enough to bear the sum total of all these loads, not temporarily, but throughout the proposed life of the bridge.
The nature of the bed rock is commonly determined through study of petrological characters and engineering properties, especially the strength values, using the core samples obtained during drilling of test bore holes. In fact complete and very useful geological profiles could be prepared all along the centre line of the proposed bridge from the study of such core logs.
Most igneous and massive type of sedimentary and metamorphic rocks is quite strong, stable and durable as foundations for bridge piers and abutments. The group of weak rocks which might behave badly in the presence of water includes such types as cavernous limestones, chalk, friable sandstones especially with clayey cements, shales, clays, slates, schists and the layers of peat and compressible organic material.
Folding and faulting might cause some uncertainty in establishing a perfect geological profile but are not otherwise negative factors. Acute fracturing and profuse jointing is, however, undesirable at the foundation levels as these might cause settlement beyond the allowable limits.
When the bridge sites are located in the zones of seismic activity, the foundations are required to be designed for additional seismic loads as specified in the codes of respective areas.
In the glaciated areas, special care must be taken to establish the existence of drowned or buried valleys that might be filled by secondary material of most heterogeneous characters. In such cases a bed rock may be encountered only at great depth and it may be desirable to reach it through piles. Therefore the low bridge is better because;
It will cost less and be more structurally sound. The only thing is you would have to make a road down both sides of the valley but that would be more structurally efficient than trying to take the whole span of the valley on one bridge. The low bridge would also be better if there is water beneath the bridge in which is not stated.
The high bridge would cost a lot more and not be as structurally sound accordingly.
If a cell was not able to produce enzymes, it could not do which of the following?
a) Raise the activation energy of vital chemical reactions, causing them to proceed too quickly
b) Lower the activation energy of vital chemical reactions, causing them to proceed too quickly
c) Raise the activation energy of vital chemical reactions, causing them to proceed too slowly
d) Lower the activation energy of vital chemical reactions, causing them to proceed too slowly
Answers
Answer:
Answer is D
Explanation:
Explanation:if your cell doesn’t produce enough enzymes it wouldn’t be available to speed up reactions throughout your body, and they would also not be available to make the many organelles made with proteins.
Answered by -"violetramirez
Helping Hand
2 answers
7 people helped "
Answer:
D
Explanation:
Lower the activation energy of vital chemical reactions, causing them to proceed too slowly
______________ is the process by which cells obtain energy from glucose.
A photosynthesis
B respiration
C cellular reproduction
D Mitosis
Answers
Answer:
C. cellular reproduction
As a soccer player dodges players of the opposite team on the field, her joints must be stabilized in many different directions. Which tissues help to stabilize joints in motion? Check all of the boxes that apply.
muscles
blood vessels
ligaments
nerves
Answers
Answer: Ligaments and muscles
Explanation:
I said what I said
Answer: muscles and ligaments
Explanation:
Which of the following is one of the ways that cellular respiration and photosynthesis are opposite processes?
A.)Photosynthesis releases energy, and cellular respiration stores energy
B.)Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
c.)Photosynthesis removes oxygen from the atmosphere, and cellular respiration puts it back,
d.) Photosynthesis consumes glucose, and cellular respiration produces glucose.
Answers
Answer:
B.)Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.
Explanation:
One of the ways in which photosynthesis differs from respiration is that photosynthesis removes carbon dioxide from the atmosphere and cellular respiration puts it back.
Photosynthesis is the process whereby green plants manufacture their food in the presence of sunlight using carbon dioxide and water. The product is usually glucose and oxygen. Respiration breaks down energy rich compounds into ATP, carbon dioxide and water.After your discussion, record your ideas below about why you think Patient 23 feels normal during week 1 but sick during week 3.
The evidence that supports my ideas is . . .
Answers
Answer:
Try time changes and start to change
Explanation:
Fermentation
external signal that controls the cell cycle
Answers
Answer:
External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells.
Explanation:
From Google
Answer:
physical and chemical signals
Explanation:
if 40 carabaos live in a 4 sq. meter area,what is their population density per sq. km.?
Answers
Explanation:
Given parameters:
Number of carabaos = 40
Area of the place = 4m²
Unknown:
Population density = ?
Solution:
The population density of the place is the number of organisms per square km.
Mathematically;
Population density = [tex]\frac{number of Carabao}{Area}[/tex]
Population density = [tex]\frac{40}{4}[/tex] = 10carabaos/m²