Sickle cell anemia is persistent in the tropics because those with sickle cell anemia cant contract the malaria virus because of the shape of their blood cells, and this is advantageous in the tropics where there are more malaria cases. So those with sickle cell anemia live to pass on their genes.
Which tissue type can make up organs
that have voluntary and involuntary
functions?
Answer:
Key Takeaways
Muscle tissue can be divided functionally, is it under voluntary or involuntary control; and morphologically, striated or non-striated.
By applying these classifications three muscle types can be described; skeletal, cardiac and smooth.
explain why antibiotics are not consistently effective against infection of bacteria
Explanation:
Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. That means the germs are not killed and continue to grow. Infections caused by antibiotic-resistant germs are difficult, and sometimes impossible, to treat.
hope this helps you.
the movement of food through the gastrointestinal tract by the contraction of muscles is called:
A. peristalsis
B. absorption
C. churning
D. digestion
Answer:
The movement of food through the gastrointestinal tract by the contraction of muscles is called Peristalsis.
why is a recycling transporter important in the function of a neuron
Answer:
This provides a temporary increase in the amount of neurotransmitter present in the synapse, which can provide short-term relief of symptoms associated with neurotransmitter imbalance, including depression, anxiety, focus, concentration and memory.
Explanation:
How are the seeds shown in the pictures spread?
Answer:
Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. ... There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.
Explanation:
because it is
5. Which of the following do NOT affect the destructiveness of an earthquake?
A. depth
B. magnitude
C. location
D. human activity
The answer is human activity
Say that you look at the nuclei of 100 skin cells taken from the same person. About how many of these skin cells would you expect to be in interphase
Answer:
45 cells would be in the interphase
In the nuclei of 100 skin cells. The number of skin cells would be in interphase is 45.
What are cells?Cells are the key unit of living organisms. The cell divides into many cells through the process of cell division.
Prokaryotic cells are the primitive type of cells that are present only in unicellular organisms, and they do not undergo cell division. These cells do not have true cell organelles and a nucleus, in that DNA is present in coil form in the cytoplasm. They contain ribosomes the organisms are bacteria that contain prokaryotic cells.
Eukaryotic cells are higher cells that contain cell organelles they have to perform various complex functions of large organisms. They have a nucleus which contains DNA or genetic material, it does not have flagella.
Therefore, the number of skin cells in the interphase is 45 cells.
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Of the sheep discussed in the presentation, which of the following has the heaviest and largest horns?
O Desert Bighorns
O Aoudad
O Rocky Mountain Bighorn
O Pronghorn
The Desert Bighorn has the heaviest and largest horns out of the options.
I hope this helps!
Which of the following best explains the strength of collagen fibers?
I'm really sorry but you didn't provide any options...
Collagen fiber is the fiber in the extracellular matrix of connective tissues characterized by being elongated and made up of collagen glycoproteins. It is typically arranged in branching bundles of indefinite length. It is a strong insoluble fiber. It occurs in the skin, tendon, ligaments, bone, and cartilage.
What kinda of polymer is in the image below?
Answer:
polypeptide
Explanation:
Its the answer.
In two to four sentences, describe how money is channeled from savers to borrowers and then to investors.
Answer:
Money is channeled through financial institutions such as banks.
Explanation:
The borrower may chose to use the funds to invest in a business venture and thus be becomes an investor. Money is channeled through financial institutions such as banks. A saver saving with a bank account seeks to keep the money in the bank as it earns him interest.
What is the most likely explanation for
the DNA found in mitochondria?
Answer:
Origin. Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from the circular genomes of bacteria engulfed by the early ancestors of today's eukaryotic cells.
Explanation:
Tornado Effects on the Land
Answer:
They have a small effect
Explanation:
Because when you consider the size of the earth, tornadoes have a small effect on earth, that's your answer?
Answer:
Tornado Effects on the Land-well tornadoes strike are greatly impacted. Trees and plants can be uprooted, and diseases in the soil are spread.
Explanation:
DEADLY!!
1) The stomach is an organ of the digestive system. It is made up of several types of tissue that work together. What kinds of tissue make up the stomach? Choose ALL that apply.
A) nervous
B) smooth muscle
C) dense connective
D) simple columnar epithelial
E) stratified squamous epithelial
Answer:
c)dense connective
Explanation:
Answer:
c) dense connective
Explanation:
60 POINTS! Describe the structure of atoms, including the electrical charges, the location (in or out of nucleus) and atomic mass (1 amu or less than 1 amu) of the following particles:1 pt for each blank Electron Charge____ Location __________ Mass ________ Neutron Charge ____ Location __________ Mass ________ Proton Charge ____ Location __________ Mass _________ Use the periodic table tile to answer questions #2 & 3 regarding Helium. 2. What is the atomic mass of Helium? Using that, determine the number of neutrons in a Helium atom. 3.What is the atomic number of Helium? What subatomic particle does it refer to? 4. Use the atomic model below to answer the following questions: 1 pt for each blank A picture containing chartDescription automatically generated a. How many protons? b. How many neutrons? c. What is the name of this atom? 5. Explain what a valence electron is. Using the atomic structure above (#4) give the number of valence electrons. 6. Describe the physical properties of Copper (Cu) based on what you know about metals, nonmetals, and metalloids. 7. What specific information about the atomic structure do the periods and groups give you? 8. 5 ZnSO4 a. Count the number of Sulfur atom = b. How many total atoms are given in the compound = 9. Li2SO4 a. Count the number of Sulfur atom = b. How many total atoms are given in the compound = 10. Al2(SO3)3 a. Count the number of Sulfur atom = b. How many total atoms are given in the compound = 11. A student conducts an experiment to separate water into hydrogen and oxygen as shown below. DiagramDescription automatically generated As a result the student collects 28.0 g of hydrogen and 224.0 g of oxygen. How many grams water did the student originally have involved in the experiment? 12. A nugget of gold has a mass of 965 g and a volume of 50 cm3. What is the density?
Answer: electron negative outside less than one amu
nuetron none inside one amu
protons positive inside one amu
2. nuetrons 2.0026
Explanation:
ssrrryyy i did all the things i could
Fill in the following blank answers :
Pigments
Pigments are molecules that can absorb certain _______________ of ___________
The primary pigment of photosynthesis is chlorophyll
Chlorophyll is green in colour because it _____________ green light while it ______________ red and blue colours
Additional pigments called __________________ pigments absorb most colours of the visible spectrum to some extent
Most leaves appear green because chlorophyll is much more ________________ than the accessory pigments
Answer:
wavelengths of light
reflects green light and absorb red and blue light
accessory pigments absorb...etc.
... (don't know the ast one) ...
what is the complementary DNA strands and plz write it the same way as the image.
Answer:
AAT-TTG-CTC-GAC-GAT
Explanation:
The complimentary strand contains the bases that the parent original strand binds to.
muscle strains are most often located:
on the surface of the muscle.
under the surface of the muscle.
in the middle section of the muscle.
where the muscle meets the tendon.
Answer:
where the muscle meets the tendon.
Explanation:
I put the answer above and I got it wrong so this is the correct answer!!
:)
Muscle strains are most often located where the muscle meets the tendon. Therefore, the correct option is D.
Stretching or tearing of muscle fibers can occur when a muscle stretches or contracts suddenly or excessively. This often occurs at the musculotendinous junction, where the muscle attaches to the tendon. The area where the tendon meets the muscle is particularly prone to strain, because of the significant stress and tension that occurs there during muscle contractions and movements. Depending on the degree of muscle fiber damage, the intensity of a strain can range from mild to severe.
Therefore, the correct option is D.
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Think about a group of cells that are undergoing very frequent cell divisions (e.g. cells that are part of a growing embryo). Suppose that you looked at 100 of these cells. How many of these cells would you expect to be in interphase
Answer:
55 cells would be in the interphase
What would happen to the DNA molecule if the pairing was non-complementary, in other words, the two purines (adenine and guanine) paired with one another and likewise the two pyrimidines (thymine and cytosine) paired with each other.
If the base-pairing in DNA becomes non-complementary such that purine bases can pair with one another and pyrimidine bases can pair with one another, the 1:1 ratio of purine to pyrimidine bases in DNA will no longer hold.
Due to the complementary base-pairing rule, the ratio of purine to pyrimidine bases in DNAs is usually 1:1. This is because Adenine always pairs with Thymine while Guanine always pairs with Cytosine.
Once this base-pairing rule is removed and becomes purine-purine and pyrimidine-pyrimidine pairings, then it becomes unnecessary for the ratio of purine to pyrimidine bases to be 1:1.
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geoligest in egypt and ethiopia are comparing rock samples from rocks founf in two contries
WILL MARK BRAINLYIST!! (if mostly/ all correct)
1. According to the article "Drilling down into petroleum's impact on life on Earth", Peak oil is measured in RPRs (reserve-to-production ratios), which is recorded in years.
Question: Why does Iran have a higher RPR (80 years) than the United States (9 years)?
A. The United States consumes more oil than Iran.
B. Iran consumes more oil than the United States.
C. Iran produces more oil than the United States.
D. The United States produces more oil than Iran.
2. According to the article "Drilling down into petroleum's impact on life on Earth", carbon is a natural element that regulates Earth's temperature and makes the planet livable.
Question: Which event has led to major shifts in the carbon cycle becoming?
A. Peak oil has been reached this past decade.
B. Humans learned how to extract and burn fuel.
C. The API established units of measurement for oil.
D. Ancient algae and plankton were buried and crushed.
"(if you came for question 3 the answer is 1,2 and 3)"
-
4. According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how is the Amazon rain forest connected to climate change?
A. Trees of the Amazon remove carbon dioxide from the air.
B. People of the Amazon produce most of the carbon dioxide that causes climate change.
C.Soil in the Amazon absorbs carbon dioxide.
D. Water in the Amazon River produces carbon dioxide, adding to climate change.
5. Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
B. The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
There are five questions which are related to the Drilling down into petroleum's impact on life on Earth.
1. C. Iran produces more oil than the United States.
RPR is referred to as the Reserve to Production Ratio which is measured in years. Higher RPR of Iran demonstrates that it has more extraction rate than United States.
2. B. Human learned how to extract and burn fuel.
The major shift in Carbon cycle is because fossils and fuels have been excessively used extracted and burned for fuel and energy.
4. A. Trees of the Amazon remove Carbon dioxide from the air.
Forests are essential because they help remove carbon dioxide from air. The existing forests of Amazon are absorbing carbon dioxide which results in moderate climate and reduced climate change.
5. A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
The biggest threat to coral reefs is bleaching event. Warming the waters spark to bleaching events.
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Hey everyone!!
Describe how offspring from asexual reproduction differ from offspring from sexual reproduction....
explain whether or not you the chaparral biome to be sensitive to loss of of a single species
Answer:
The chaparral biome has a high level of biodiversity, which serves to protect an ecosystem against the extinction of a single species. As a result, the chaparral biome should not be overly vulnerable to the extinction of a particular species.Sources:
The Chaparral practice - QuizletWhat observations can a geologist make by working Outdoors instead of in a lab?
Answer:
Explanation:
Geologists combine both laboratory and field data to illustrate the results of their research. Some observations that can the geologist make by working outdoors instead of in a lab are as follows: Understanding and exploring the earth's surface closely using geophysical tools. Collecting samples by own and make some interpretations at the same time.
Salamander and Snake difference between
Answer:
https://wikidiff.com/salamander/snake
https://www.burkemuseum.org/collections-and-research/biology/herpetology/all-about-amphibians/what-are-salamanders
Explanation:
According to WikiDiff "snake and salamander, are that a snake is a legless reptile of the sub-order serpents with a long, thin body and a fork-shaped tongue while salamander is a long, slender, chiefly terrestrial amphibian of the order caudata, resembling a lizard or a newt." moreover "Salamanders are a type of amphibian; they have moist skin and are usually found in damp habitats near or in water. Salamanders are closer related to frogs despite how different frogs and salamanders look. Lizards are a type of reptile; they have dry skin with scales and are purely terrestrial (burkemuseum, 2021).
What are fontanels?
Answer:
a space between the bones of the skull in an infant or fetus, where ossification is not complete and the sutures not fully formed. The main one is between the frontal and parietal bones.
An individual with androgen insensitivity syndrome will:
A. Not be feminized at puberty
B. Prefer a female sexual partner
C. Not function sexually as an adult
D. Have female external genitalia
Answer:
D I think. i am not completely sure.
An individual with androgen insensitivity syndrome will have female external genitalia, which is option D, as androgen insensitivity syndrome (AIS) is a genetic condition in which an individual's cells are unable to respond to androgens.
What is androgen insensitivity syndrome?Androgen insensitivity syndrome (AIS) is a genetic disorder in which an individual's body is unable to respond properly to male sex hormones, called androgens. The condition is caused by mutations in the gene that codes for the androgen receptor, which is a protein that binds to androgens and enables them to activate certain genes. In individuals with AIS, the androgen receptor either doesn't work at all or doesn't work properly, which leads to a range of physical changes that can vary in severity depending on the degree of androgen insensitivity.
Hence, An individual with androgen insensitivity syndrome will have female external genitalia, which is option D.
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Which of the following statements best goes with the Law of Conservation of Energy
Explanation:
Just choose the one that is similar to that of this : Energy is neither created nor destroyed in a given system.
note -it is always unidirectional i.e - Goes in only one path.