The gills and lungs of vertebrates are designed to have as much surface area as possible for gas exchange. A dense network of blood arteries is present on the alveoli's partitions.
What is a gas exchange?As a result, lungs maximize the area for the gaseous transition by having a wide range of alveoli that are well supplied with blood.
A portion of the lungs in humans are constructed of bronchioles, alveoli, which resemble balloons, and a network of blood capillaries that serve as the groundwork for gas exchange.
Therefore, this takes place in the lungs between the alveoli and a group of microscopic blood arteries called capillaries that are positioned inside the alveoli's borders.
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help.........................................
Answer:
the third option
Explanation:
In a multicellular organism, specialized cells have individual functions. What is the function of a nerve cell?
Answer:
Function are presented below:
Explanation:
for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
What would you need to do to your model to make it look like a true DNA molecule?
Hello may u pls help me with this I'm hella counfused
Explanation:
(1) Is referring to Newton's first law, an external force (gravitational force) is applied to frogs motion, thus causing it to deviate from a straight line
(2) is referring to Newton's third law of motion, the action force is done by the ball hitting the ground and the direction is downwards, the reaction force is done by the ground transferring that same force to the ball, acting upwards
(3) I think it's also the first law, the person on a train is showing, the force to keep it at rest, the sudden halt of the train causes a reaction force to act on the person, does making the person move
(4) I think it's both Newton's second law and third law motion.
I hope these helps
Answer:
(1) Is referring to Newton's first law -it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
(2) is referring to Newton's third- law for every action (force) in nature there is an equal and opposite reaction
(3) I think it's also the first law -it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
(4) Newton's second law and third law motion-for every action (force) in nature there is an equal and opposite reaction the acceleration of an object is directly related to the net force and inversely related to its mass
Explanation:
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I’ve asked 3 times :( any1?? HELP ASAP!!!!! I’m bein timed :(
Acid deposition kills things ___.
A. very slowly
B. within minutes
C. within hours
D. at an average rate
Answer:
I'd say D
Ig it just depends on what area the acid rain is
DNA is always tuned on all the time in all of your cells true or false
Answer:
true
Explanation:
i just did this last period
What structures does water escape through during transpiration?
What kind of conditions pushed c4 plants to adapt in order to allow them to undergo photosynthesis
answer:
C4 plant has adapted to photorespiration by modifing the calvin-benson cycle.
2. Just as in humans, systems interact in plants to maintain homeostasis and accomplish the functions of transport, reproduction, and response. What are some examples of plant processes that involve an interaction between stems, roots, and leaves?
Answer:
osmosis
Explanation:
plants use osmosis whic is moving water though a semipermial membrane to draw up water. It moves from places of high conetartions of water (dirt) has to is less water (roots). When it does this the plant mains homeostasis by getting water up useing their xylem (tubes in stems) to the leaves.
Plants use osmosis which is moving water though a semipermial membrane to draw up water.
What do you mean by osmosis?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential to a region of low water potential.
Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.
The rate of osmosis always depends on the concentration of solute. The process is illustrated by comparing an environmental or external solution to the internal concentration found in the body.
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In which Kingdom do all of the organisms in the chart above belong?
A. Archaebacteria
B. Chordata
C. Animalia
D. Eukarya
Answer:
kingdom Monera
Explanation:
Archaebacteria are known to be the oldest living organisms on earth. They belong to the kingdom Monera and are classified as bacteria because they resemble bacteria when observed under a microscope. Apart from this, they are completely distinct from prokaryotes.
Which organism would require cell differentiation?
O amoeba
O bacteria
cactus
O euglena
Answer:
bacteria
Explanation:
for such unicellular organisms like bacteria, various life functions occur witha single life
A change in a person’s environment that is received by their nervous system
In the nervous system, a neural message is known as an ___________________.
Answer:
sorry I need points heheyehueueurhebebrbrrh
What is removing materials from a cell in vesicles called? *
A. osmosis
B. diffusion
C. endocytosis
D. exocytosis
Answer:
A
Explanation:
Removing materials from a cell in vesicles is called. osmosis.
Answer:
Exocytosis!!
Explanation:
Which of the following best describes the division of cytoplasm and the cell membrane?
a:Cytokinesis
b:Sister chromatid
c:Spindle fiber
d:Centromere
Answer:
A: Cytokinesis
Explanation:
the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
Which best explains why the rate of a reaction decreases at significantly higher temperatures?
A. The activation energy increases.
B. The shape of the enzyme changes.
C. The enzyme-substrate complex forms.
D. The bonds between substrates are broken.
Answer:
B
Explanation:
At significantly higher temperatures, the rate of an enzyme-catalyzed reaction decreases because the shape of the enzyme changes at high temperatures. Enzymes are proteinous in nature, and as such, are generally sensitive to high temperatures.
They simply become denatured by high temperatures. In other words, they lose their original shape and their catalyzing abilities as the temperature gets progressively high during the course of reactions, thus, decreasing the rate of a reaction.
The correct option is, therefore, B.
Which is the most specific group? *
A. Genus
B. Family
C. Order
D. Phylum
Answer: genus
Explanation:
What are FOUR specific things you would consider if you were
scientifically choosing a house to buy (instead of emotionally)?
Which of the following countries has a transform plate boundary?
a Canada
b Argentina
C Australia
d Now Zealand
Answer:
D. New Zealand
Explanation:
The most famous example of this is the San Andreas Fault Zone of western North America. The San Andreas connects a divergent boundary in the Gulf of California with the Cascadia subduction zone. Another example of a transform boundary on land is the Alpine Fault of New Zealand.
Answer:
New Zealand
Explanation:
The Alpin fault runs through the entire length of New Zealand's south island .
Why do geologists think Earth's core contains mostly iron?
A. The crust contains a mixture of iron and silicon.
B. The crust contains no nickel.
C. Other orbiting bodies contain more iron than Earth's crust does.
O D. The moon's crust contains far less iron than Earth's crust.
Answer:
It should be D
Explanation:
I hope this helps! Let me know if I am wrong.
The geologists think Earth's core contains mostly iron is to be considered as the option c. Other orbiting bodies.
Reason for thinking of geologists:Here the thinking should be earth core that comprises iron since the earth should contain the powerful magnetic field that is due to the molten iron in the core.
Also, there should be constant movement leads to the electrical current.
hence, the option c is correct.
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Which practice supports a circular economy?
A. Buying canned or frozen foods
B. Shopping at discount stores
C. Using disposable cutlery
D. Wearing hand-me-down clothing
HELP PLEASE
Answer:
The believe the best answer would be D: wearing hand-me-down clothing
Explanation:
Circular Economy is an economic system aimed at eliminating waste
Answer:
D. Wearing hand-me-down clothing
Explanation:
Juss took the test
How does blood help maintain the homeostasis in the body?
Answer:
Blood absorbs and distributes heat throughout the body. It helps to maintain homeostasis through the release or conservation of warmth. Blood vessels expand and contract when they react to outside organisms, such as bacteria, and to internal hormone and chemical changes.
Answer:
Blood absorbs and distributes heat throughout the body. It helps to maintain homeostasis through the release or conservation of warmth. Blood vessels expand and contract when they react to outside organisms, such as bacteria, and to internal hormone and chemical changes.
Explanation:
If someone crosses the black cat (BB or Bb) with white cat (bb) and 50 percent of the offspring are black, what is genotype of the black cat ?
Answer:
this cat is Bb
Explanation:
Which of the following is true of binary fission?
It produces two identical daughter cells.
It requires two gametes to fuse.
It only occurs in animal cells.
It is the result of sexual reproduction
Answer:
I THINK THIS IS NUMBER FOURRRRRRRR
Explanation:
can you answer all these pls
Answer:
lol
Explanation:
xd
An additional layer of defense and maintains shape
Answer:
Prokaryotes have a cytoplasm, plasma membrane, DNA, and ribosomes, but no nucleus. They have a cell wall that offers an additional layer of protection, prevents dehydration and maintains the shape of the cell. The cell wall is made of peptidoglycan.
Explanation:
Sweating process is important . Why?
I am only able to give a short answer but;
It cools the body down.
Your right to safety means consumers have the right to a variety of competitive products in the marketplace.
Answer:
Yes i believe this is true
Explanation:
Lucas is carrying his rock collection into class. He carries 30 pounds of rare rocks 15 feet into Classroom 6. It takes him 3 minutes to get them into the classroom. What is Lucas's speed and how much work is done? Be sure to show your work with equations as part of your answer.
Answer:
450
Explanation:
You would multiply 30 by 15 then you will get your answer hope this helps
Answer:
work= 30 x 15
work= 450
foot pound
speed= distance/ time
speed= 15/3
speed= 5 ft per minute
How many chromosomes foes the nucleus of egg-making cell contain?
Answer:
23
Explanation:
Healthy humans have 46 chromosomes, 23 from the sperm and 23 from the egg. An embryo with the wrong number of chromosomes is usually miscarried, or develops disorders such as Down's syndrome, which is caused by an extra copy of chromosome 21
Please help me!!!!
Describe how migration is considered to be a way that evolution in a population occurs. Use "allele frequency" in your answer.
Answer:
PLZ READ THIS FOR YOUR SAFTEY
Explanation:
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