Answer:
Flatworms are beings that do not have a heart, veins, arteries, capillaries, hemolymph, or some type of circulatory fluid. Their circulation occurs between cells or intercellularly and they are responsible for transporting substances by diffusion from cell to cell.
Explanation:
Flatworms are considered multicellular eukaryotic organisms. This implies that in their cells they have a cellular nucleus, in which the DNA is contained, structuring the chromosomes. Likewise, they are made up of several types of cells, each one specialized in a specific function. They lack a structured circulatory system as such. Because of this they do not have specialized structures such as a heart or blood vessels, however, the circulation of certain substances is established between their cells. This is done thanks to the diffusion process. Substances pass from one cell to another through this process.This does not apply to all flatworms, since in some species of bog and digenae there is a certain organization and some very small conducting vessels known as the endolymphatic system, the which forms a kind of plexus in the parenchyma.It should also be noted that some species do not even have a digestive system, being the digestive tract the one in charge of digestive functions and the distribution of the nutrients they receive.
How does the presence of suspense in a story affect readers?
It helps them predict the story’s outcome.
It gives them hints about the characters’ thoughts.
It makes them skip the boring parts.
It keeps them engaged in the story.
Answer:
Suspense ensures the reader will have enough interest to continue reading throughout the piece. If the author has done his job, suspense will continue to increase up until the climax, or the final confrontation and turning point.
Explanation:
Hope this works out my friend
It keeps them engaged in the story. So, the correct option is (D).
What is Suspense?Suspense is defined as a state of mental uncertainty, worry, being undecided, or being doubtful. It is the anticipation of the outcome of a plot or the resolution of an uncertainty, riddle, or mystery, especially as it affects a character for whom there is sympathy.
Following are the types of suspense :
Narrative SuspenseShort-term SuspenseRomantic/Comedic SuspenseCliffhangersMysteryHorrorThe smart use of suspense in a story that helps build suspense and keep the plot engaging as the reader progresses, and sets the stage for genuine surprise and shock when a major plot point or twist is revealed from an unexpected angle.
Thus, it keeps them engaged in the story. So, the correct option is (D).
Learn more about Suspense, here:
https://brainly.com/question/2517457
#SPJ2
Regarding the General Adaptation Syndrome, a short term response to stress in which glycogen is broken down to glucose is characteristic of the
The complete question is as follows:
Regarding the General Adaptation Syndrome, a short term response to stress in which glycogen is broken down to glucose is characteristic of the stage. 1) Alarm reaction 2) Stage of resistance 3) Stage of exhaustion
Answer:
The General Adaptation Syndrome or GAS explains the pattern of responses that body experinces in response to prompted by a stressor. There are three phases of this syndrome:-
1. Alarm reaction:
Sympathetic system and Hypothalamopituitary axis activated by the stress result in reaction by body.
2. Stage of resistance:
The hormone that is releases continusoly in this stage by the zona fasciculata layer of adrenal cortex is cortisol to maintain arousal.
3. Stage of exhaustion:
In abscence of enough blood sugar or glucose in the body, the body initiates breakdown of the glycogen (stored sugar in muscles mosty) with the help of hormone known as glucagon to covert it to glucose so that it can be used by the cellular respiration.
If an object with 80 j of gravitational potential energy is raised twice as high, what would be its new gravitational potential energy?
a. 100 j
b. 160 j
c. Can't be calculated without
knowing its weight.
The gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy. And like this.
So, the answer is b. 160J
what effects do mutations have? Check all that apply.
Answer:
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition
Answer:
answer a,c,e,f
Explanation:
it can change protein shape
might be neutral
might be harmful
might be beneficial
Which is a cofactor? (1 point)
O CO2
O ATP
O H20
O NAD
Answer:
O H20
Explanation:
because I get a 100 on the text
fill in the blanks human beings continue to grow Till the age of dash
Answer:
Human beings continue to grow till the age of 20.
Answer:
most people don't reach full maturity until the age of 25
what statement about thylocoids is not true
Answer:
Explanation:
I really wouldn’t know
which species of protozoan causes the african sleeping sickness?
A . plasmodium vivax
B . entamoeba histolytica
C . balantidium coli
D . trypanosoma brucei gambiense
The correct answer is D.
this is a protozoan that uses the tse-tse fly as a vector and causes african sleeping sickness. This parasite is usually found in csf
Photosynthesis and respiration depend on each other for the exchange of:
Fill in the blanks.
1. Human beings continue to grow till the age of.
Answer:
The fastest rate of growth is usually 1 to 2 years after puberty has started. Developing physically into an adult takes 2 to 5 years. Most boys will stop growing taller by age 16 and will usually have developed fully by 18.
Which domain is considered to be the oldest?
Answer:10 Oldest Domains on the Internet
sri.com. ...
xerox.com. ...
northrop.com. Date of Domain Registration: November 7, 1985. ...
mcc.com. Date of Domain Registration: July 11, 1985. ...
think.com. Date of Domain Registration: May 24, 1985. ...
bbn.com. Date of Domain Registration: April 24, 1985. ...
Symbolics.com. Date of Domain Registration: March 15, 1985. ...
Darpa (. net, .
Explanation:
why might the author have capitalized the word "DO"
Answer:
To express a feeling in a sentence. Or, if someone is saying it to bolden the meaning.
Explanation:
Which of the following is NOT an advantage of living on a floodplain?
A) rich soil
B) good farming
C) convenient river access
D) flash floods
Answer:
D.) flash floods
Explanation:
why is the interaction of the respiratory and circulatory systems necessary for the frog survival please refer to oxygen and carbon dioxide?
In the circulatory system there is the distribution of oxygen to the body and in the respiratory system the gas exchange.
How is the respiratory and circulatory system of amphibians?Amphibians have three structures for breathing:
The lungsThe mucous membranes of the pharynx and mouthand The skin.The lungs are made up of two bags with no internal division. When still in the larval stage, they breathe through gills.
How does the circulatory system of amphibians work?Amphibians have a dual circulation, meaning the blood passes through the heart twice to complete the cycle. The blood reaches the heart, travels towards the lungs, returns to the heart and only then is carried to the body.
Whit this information, we can conclude that In the circulatory system there is the distribution of oxygen to the body and in the respiratory system the gas exchange.
Learn more about Amphibians in brainly.com/question/13744586
Which identifies the realationships between photosynthesis and cellar respiration
Answer:
Both processes release energy for cell use. The products of one process are used as reactants by the other process. The reactants of one process are also the reactants of the other process.
Explanation:
Question 4
Homeostasis refers to an organism's ability to
A
maintain stable internal conditions
B
dissolve chemicals
с
obtain energy
D
gather nutrient
Cellular respiration involves a reaction between glucose and oxygen to form_____
1: carbon dioxide
2: water
3: all of these
4: energy
Answer:
3. All of these
Explanation:
When the reaction of cellular respiration occurs, carbon dioxide and water is created while energy gets released.
Answer:
3: all of these
Explanation:
They actually form ATP, which is essentially energy. Byproducts are water and carbon dioxide. I would say all of these answers are true! Remember though, ATP (energy) is the main product while water and carbon dioxide are byproducts.
You are called to investigate a lake in your home town, where the residents fear that a broken pipe from the local sewage treatment plant has turned the formerly pristine lake eutrophic. You test the water and find very low levels of oxygen. What stage of euthrophication is this lake in?
Answer:
The correct answer is - The decomposers decompose dead algae and plants which take up most of the oxygen.
Explanation:
Eutrophication is taken place when there is a high amount of nutrients, minerals are present in a waterbody which allow algae to grow rapidly and cause depletion of oxygen due to the decomposition of dead organisms. There are the following stages in the eutrophication process:
- rapid growth of Algae and other plants
- due to algal bloom, the sunlight is blocked, and plants and organism start dying.
- The decomposers take up most of the oxygen by decomposition
- The animals start dying without oxygen
Which organism is a carnivore in this food web?
A. Fox
B. Grass
C.Rabbit D. Mice
Answer:
fox most likely
Explanation:
Answer:
It is definitely a fox, A
Explanation:
everything else here eats vegetables and other things besides meat
What drives plate movement?
A. Convection currents in the mantle.
B. Convection currents in the inner core.
C. Convection currents in the crust.
D. Oceanic currents
Answer: The answer is A, convection currents in the mantle.
Explanation: Plate tectonics move because they are carried along by convection currents in the upper mantle of the planet (the mantle is a slowly flowing layer of rock just below Earth's crust). Hot rock just below the surface rises and when it cools and gets heavy, it sinks again.
If one species of an organism in an ecosystem suddenly disappeared, which would be the most likely result?
A
The ecosystem would be destroyed immediately.
B
The ecosystem would not be changed at all.
с
Only one part of the ecosystem would be affected.
D
Many parts of the ecosystem would be affected.
Answer:
D Many parts of the ecosystem would be affected.
Explanation:
brainest plz
Answer:
D
Explanation:
One animal has many different parts in an ecosystem and if it were to be removed it would affect many parts of the ecosystem
In DNA and RNA, what “codes for amino acids”?
combinations of nucleotides
combinations of sugars
combinations of proteins
combinations of strands
Answer:
The correct answer is - combinations of nucleotides
Explanation:
The codes for amino acids are encoded in the DNA and RNA in the form of the trinucleotide codons that contain three base sequences which copied in the complementary bases sequence mRNA and then decoded by the ribosome with help of tRNA to produce the original sequence in amino acid sequence or peptide chain.
This nucleotide is also code in the set of 3 base sequences similarly one amino acid is made up of the triplet code.
Which microscope could be used to study the movement of protists in water?
Answer:
A simple light microscope
Explanation:
How are molecules moved across the membrane during active transport? A. They slide through the small spaces in the membrane. B. They are moved using transport proteins and pumps. C. They attach themselves to the membrane and are pulled through
ASAP
B. They are moved using transport proteins and pumps.
Answer:
B. they are moved using transport protiens and pumps
Explanation:
just took a test on this
If ____ are spaced closely together on a map, there is a drastic temperature
change over a distance.
A. Warm fronts
B. Isotherms
C. Isobars
D. Occluded fronts
Answer: B
Explanation:
Answer:
Isotherms
Explanation:
(A P E X)
What does the slope of the curve on a distance vs time graph represent?
Answer:
What does the slope represent on a velocity graph? The slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.
Explanation:
Brainliest please?
Why do plants need glucose?
Pls answer correctly I will give a brainless also
Two parents decide to have a child. The parents plan to have their genes tested before they have their child to see if there is a possibility of their child having sickle cell, a recessive blood disorder. The parents find out they are both heterozygous. What percentage does their child have to get sickle cell?
Answer:
1/4 chance.
Explanation:
I used a punnet square to calculate the possibility and it seems to be a one in four chance.
Answer:
The answer to that question is 25%
Explanation:
Reason is because 1/4 = 25%
During metamorphosis, what structures do tadpoles lose?
a.
eyes
b.
arms
c.
gills
d.
legs
Answer:
C. They lose their gills
Explanation:
They lose their gills but grow lungs
Do turkeys get sleepy from that thing in turkey that makes you sleepy?
Answer:
Turkey allegedly causes drowsiness because it is packed with a nutrient called tryptophan. Tryptophan is one of 20 naturally occurring amino acids—the building blocks of proteins. Because the body is unable to manufacture tryptophan on its own, it must be obtained from food protein.