which species of protozoan causes the african sleeping sickness?
A . plasmodium vivax
B . entamoeba histolytica
C . balantidium coli
D . trypanosoma brucei gambiense

Answers

Answer 1

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


Related Questions

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.

Answers

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 SuspenseCliffhangersMysteryHorror

The 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).

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What is one way the body lowers its temperature?

Answers

Answer:

Sweating

Explanation:

Sweating is your body's way of naturally reducing body temperature. By sweating, your body releases heat then the sweat on your body cools down, eventually, cooling your body down.

Answer:

if your talking about heat, then the body starts sweating to cool its self down.

Explanation:

A scientist is studying the effect on human health of bacteria that live in the human intestine. In her study, she found that the bacteria actually help the body’s immune response. To develop scientific consensus about her idea, the scientist should

Answers

Answer: Publish her results in a peer- reviewed journal

Explanation: correct on Edge.

In DNA, different alleles of a gene have a different sequence of ___________________. Alleles may have a different sequence of ___________________ in RNA that result in a different sequence of _________________ in a protein. Therefore, proteins produced from different alleles of a gene may have different structures and functions and result in different characteristics.

Answers

Answer:

blood cotton dna

Explanation:

hahahahahaahahahaha

In DNA, different alleles of a gene have a different sequence of nucleotides. Alleles may have a different sequence of nucleotides in RNA that result in a different sequence of amino acids in a protein. Therefore, proteins produced from different alleles of a gene may have different structures and functions and result in different characteristics.

What are nucleotide?

Nucleotides are the building blocks of DNA and RNA. They are composed of a sugar, a phosphate group, and a nitrogenous base. There are four types of nitrogenous bases in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, the base thymine is replaced by uracil (U). The sequence of nucleotides in DNA or RNA determines the sequence of amino acids in a protein. Proteins are made up of long chains of amino acids, and the sequence of these amino acids determines the protein's three-dimensional structure and function.

Alleles are different versions of a gene. They can result from mutations or changes in the DNA sequence. Different alleles of a gene can produce proteins with different structures and functions, which can result in different characteristics in an organism. For example, the gene that determines eye color has several different alleles, which can result in different eye colors in people.

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A tiny seeding grows into a tall tree with a mass of several tons. From where does the tree gain all that mass?

Answers

Answer:

it comes from sunlight

Explanation:

what is a definition and example of Elevation

Answers

How high somthing is
To step up, how high something is. You can use the example as stairs or a y’all building.

GORAN
NARGO MYSETS
OMSRANOG
LECL
SUSTIE
Unscramble these words plssss

Answers

Organ

Organ system

Organism...(is the one “o” supposed to be an “i”?)

Cell

Tissue

Hope this helps! (:

During photosynthesis, plants capture light energy and form carbon-containing molecules, such as glucose. Which is not a use for glucose

Answers

Answer:

During photosynthesis, plants capture light energy from the Sun to break weak bonds in reactants, such as carbon dioxide and water, and form carbon containing molecules, such as glucose. The carbon containing molecules can then be used:

✓ to assemble larger molecules, such as DNA, proteins, and fats.

Explanation:

which of the following statements best describes how the traits of an organism are determined by the DNA in their cells?

Answers

Answer:

C. DNA codes for proteins which allow an organism to grow and function

Explanation:

Deoxyribonucleic acid, commonly known as DNA is the genetic material in living organisms. The DNA stores genetic information, which encodes the formation of useful products (proteins) necessary for the growth and development of that particular organisms. The information in DNA is decoded by a process called GENE EXPRESSION, which encompasses transcription and translation.

Transcription is the process that synthesizes RNA from DNA molecule, while translation synthesizes PROTEIN from the mRNA. Hence, the order which is called CENTRAL DOGMA OF BIOLOGY is as follows: DNA → RNA → PROTEIN.

Therefore, DNA codes for proteins which allow an organism to grow and function best describes how the traits of an organism are determined by the DNA in their cells.

PLEASE HELP, WILL GIVE BRAINLEIST!!!

Answers

Answer:

A.

Explanation: The statement A is the only one that corresponds correctly with the graph.

why might the author have capitalized the word "DO" ​

Answers

Answer:

To express a feeling in a sentence. Or, if someone is saying it to bolden the meaning.

Explanation:

What should one do if the results of an experiment consistently do not support the original hypothesis?

Answers

Answer:

Change the hypothesis to match the results.

An object with a mass of 30 kg is located on a cliff 50 m above the ground. What is its gravitational potential energy

a. 1500 j
b. 14,700 j
c. 1.7 j​

Answers

b. 14,700 J

Because,

Potential energy

= m.g.h

= 30 kg × 9.8m.s^-1 × 50m

= 14700 kg.m^2.s^-2

= 14700 J

These pellets are not eliminated as _________________, but are regurgitated through the ___________________.

Answers

Answer:

These pellets are not eliminated as feces, but are regurgitated through the mouth. Pellets are not found exclusively within the owl families. There are many species of birds known to regurgitate pellets: hawks, eagles, kites, harriers, falcons, and even robins are some of the more familiar ones.

tell me if im wrong :/

a macomolecule that contains carbon, hydrogen, oygen and nitrogen which is used by the body for growth and repair

Answers

The answer is protein.

Help please I'll give brainlist
The environment limits population growth by changing birth and death rates. Briefly describe how each environmental factor listed below influences population size. Also, identify each environmental factor as a biotic or abiotic factor

Competitors
Disease
Food
Ph level
Prediction
Soil type
Temperature
Water availability

Answers

Answer:

Disease

Ph level

Water availability

Soil type

Explanation:

Which two changes would increase the density of ocean water?
A. Increasing the amount of light that enters it
B. Decreasing its salinity
C. Increasing the amount of water that evaporates from it
I D. Decreasing its temperature

Answers

Answer:

The answer is simply D.

Explanation:

One factor that  does affect density is the temperature. In general, most substances become less dense as temperature increases and more dense as temperature decreases.

The amount of water that evaporates from the ocean and the temperature are the two factors that influence its density. So options C and D are both true for this statement.

What is the effect of temperature on density?

The ocean water has more salts and minerals dissolved in it, so it is denser than normal fresh water. Some factors further decrease or increase the density of the ocean water. When the temperature drops, the water cools and ice forms. The ice is denser than the water, so it will sit below it.

As the temperature rises, the water evaporates, increasing salinity because more salts are present in the ocean water than in the water itself. The concentration of salt in the ocean determines the salinity of the ocean, and it can increase the density of ocean water when the concentration of salt is higher.

Hence, the amount of water that evaporates from the ocean and the temperature are the two factors that influence its density. So options c and d are both true for this statement.

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what is an example of drought

Answers

not a lot of rain so it’s dry

Answer:

An example of drought is August in the desert

Explanation:

Drought is defined as a long period of time when there is no rain

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

Answers

Answer: B

Explanation:

Answer:

Isotherms

Explanation:

(A P E X)

All organisms are genetically different.

All organisms have homologous structures.

All organisms share a common genetic code.

All organisms came from different ancestors.

Answers

Answer:

All organisms share a common genetic code.

Explanation:

Organisms are genetically different for the most part but this asks why it applies to all organisms.

They do not all have homologous structures

They share a common ancestor

The chemical equation of cellular respiration contains information about?

a. the relative amount of products and reactants.

b. the formation of glucose.

c. the intermediate reactions needed to break down glucose.

d. the environment in which cellular respiration occurs.

Answers

A. I believe, because a chemical reaction equation is a shorter way to represent a chemical reaction.

The chemical equation of cellular respiration comprises information regarding the relative amounts of products and reactants.  

• The process, which takes place within the mitochondria of all the organisms is termed cellular respiration. In this process, the simple sugars are dissociated into water and carbon dioxide and release energy in the form of ATP.  

• A chemical reaction is a procedure in which one or more components, that is, the reactants get transformed into one or more different components called the products.  

• The substances, which start the reaction are called reactants, while the ones that get produced in the reaction are called products.  

• The association between the reactants and products in a chemical reaction can be signified with the help of a chemical equation.  

Thus, the chemical reaction of cellular respiration comprises information regarding the relative amount of products and reactants.  

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Analyze Can relative humidity be more
than 100 percent? Explain your answer.

Answers

Answer:

Surprisingly, yes, the condition is known as supersaturation. At any given temperature and air pressure, a specific maximum amount of water vapor in the air will produce a relative humidity (RH) of 100 percent. Supersaturated air literally contains more water vapor than is needed to cause saturation.

Explanation:

PLEASE HELP HELP HELP

Answers

Answer:

1st

Explanation:

PLEASE HELP!!! Answer needed!!

Answers

Answer:

it's "spindle"

Explanation:

hope this helps ya!! :))


3)What is the epiglottis?
4)Why do the walls of the stomach secrete hydrochloric acid?
5)Which TWO parts of the alimentary canal make up the small intestine?

Answers

Answer:

3)The epiglottis is a small, movable "lid" just above the larynx that prevents food and drink from entering your windpipe. But if the epiglottis becomes swollen — either from infection or from injury — the airway narrows and may become completely blocked.

4)Your stomach lining also secretes hydrochloric acid, which creates the ideal conditions for the protein-digesting enzymes to work. The potent hydrochloric acid kills bacteria, protecting your body from harmful microbes which can enter your body in food.

5)Made up of three segments -- the duodenum, jejunum, and ileum -- the small intestine is a 22-foot long muscular tube that breaks down food using enzymes released by the pancreas and bile from the liver.

Explanation:

please mark me as brainliest thank you

People harness the sun's energy in
many
ways. Which is not a result of the sun's
energy?

Answers

Answer:

A

Explanation:

This type of energy is generated by the wind not the sun

I need help with this question plz and thank you ​

Answers

Answer:

B

Explanation:

When I read this, B just fits best with what's happening. If I'm wrong, I'm so sorry! Have a lovely day.

What terms means that molecules are evenly or equally distributed on both sides of a cell membrane?

Answers

Answer:

the cell wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Explanation:

it coversssssssssssssssssssss the cell and protects it

why is the interaction of the respiratory and circulatory systems necessary for the frog survival please refer to oxygen and carbon dioxide?​

Answers

The circulatory system circulates blood around the body. The blood passes through the lungs, where it loses carbon dioxide and gains oxygen. All cells need oxygen to function and carbon dioxide is a form of waste produced in the cells. The digestive system breaks down food and absorbs.

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.

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what effects do mutations have? Check all that apply. ​

Answers

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

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