a) What did scientist Calderón-Garcidueñas find when she performed MRI
scans and autopsies on the brains of children in Mexico City? (3 points)

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Answer 1
Answer: the brain scans showed that there were areas of damage in the brains of all but one of the Mexico City kids. The damage was caused by air pollution.

Related Questions

three main factors that affect stroke volume and how each impacts cardiac output if that factor is increased?

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The three main factors that affect stroke volume are contractility, preload and afterload.

Increase in contractility and preload increases cardiac output whereas increase in afterload decreases cardiac output.

What is stroke volume?

Stroke volume refers to the volume of blood that is pumped by the heart through each stroke.

The three factors that affect stroke volume and how it impacts cardiac output when increased is given below:

contractility - an increase in contractility of the heart increases the cardiac outputPreload - an increase in preload increases cardiac outputafterload - an increase in afterload decreases cardiac output

Therefore, the three main factors that affect stroke volume are contractility, preload and afterload.

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Would you expect the plastid DNA of photosynthetic dinoflagellates, diatoms, and golden algae to be more similar to the nuclear DNA of plants (domain Eukarya) or to the chromosomal DNA of cyanobacteria (domain Bacteria)? Explain.

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Sorry bro people do this

would cause evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home?

Answers

Gene flow would cause an evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home.

What is Gene flow?

In genetics, the expression 'gene flow' refers to the migration of organisms or movement of their reproductive germinal cells to a new place.

 

Gene flow is well known to alter the genetic structure of the population in the site where it occurs.

In conclusion, gene flow would cause an evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home.

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When under excessive passive tension, what muscle limits scapular upward rotation, posterior tilting, and external rotation?

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Pectoralis minor is the muscle which limits scapular upward rotation, posterior tilting, and external rotation when under excessive passive tension.

What is Pectoralis minor?

This muscle is found below Pectoralis major and originates from the middle ribs to the scapula.

When under pressure this muscle limits the various types of movements which are mentioned above.

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Sphingosine is not a component of:

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According to the research, sphingosine is an aminoalcohol that forms ceramides and is not a component of cardiolipin.

What is sphingosine?

It is an aminoalcohol that is found in most of the sphingolipids of animal tissues.

It intervenes in cellular metabolic regulation processes related to lipid signaling pathways.

Therefore, we can conclude that according to the research, sphingosine is an aminoalcohol that forms ceramides and is not a component of cardiolipin.

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1.Explain Cytotaxonomy and Chemotaxonomy and Numerical Taxonomy.

2.Difference Between Chemotaxonomy And cytotaxonomy?

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Answer:

Cytotaxonomy refers to the classification of biological materials based upon similarities and differences of cellular structure and number of chromosomes present in the cell afterwards while .:::: chemotaxonomy refers to the classification of biological materials based upon similarities and differences of the ...Chemotaxonomy is based on the similarities and differences in biochemistry such as a sequence of amino acids in proteins, whereas, cytotaxonomy is the classification based on cellular characteristics such as chromosomes number and behaviour.

tuberculosis, botulism, and tetanus are examples of diseases caused by rod-shaped bacteria known as ______________.

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Bacilli is a rod shaped bacteria that cause diseases like tuberculosis, botulism, and tetanus.

What is Bacilli?

Bacilli refer to a group of bacteria that is small, rod shaped and also a gram positive bacteria which causes diseases or infections on their host. They normally transmit diseases through infected food, water and animal bite.

Therefore, Bacilli is a rod shaped bacteria that cause diseases like tuberculosis, botulism, and tetanus.

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When you hold a mug of hot cocoa,you feel a change in temperture.how does the skin detect this change?

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Answer:

sensory receptors in the skin detect the stimuli from the environment

Explanation:

How do we investigate translocation using the ringing experiment?

Answers

Translocation can be investigated by using the ringing experiment, while peeling and removing the bark and phloem of a plant.

What is translocation?

Translocation can be defined as a biological process which involves the transfer (movement) of water and other soluble nutrients from one part of a plant to another, especially through the xylem and phloem.

Generally, translocation can be investigated by using the ringing experiment, while peeling and removing the bark and phloem of a plant. Also, if sucrose is present, it would cause a swell and thus indicating translocation.

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Correct Value: 12.75
8.5
8.4
8.4
8.3

Answers

I don't understand your question maybe try rephrasing?

why do we not see other components of cell? are they absent?

Answers

Answer:

They are microscopic (small) and they are protected by the outer wall/membrane

Explanation:

What is the name of the Coenzyme that binds with Acetyl Acid?

Answers

The name of the coenzyme is Coenzyme A.

Citric acid cycle

The intermediate step between glycolysis and the citric acid cycle is the production of acetyl-co A.

Acetyl-co A is produced by the oxidative decarboxylation of the pyruvate molecule generated from glycolysis in the matrix of the mitochondrion.

The pyruvate molecule is first transformed into an acetyl group. The enzyme, Coenzyme A, binds with the acetyl group to form acetyl-co A.  

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Information collected directly with the senses is

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the answer would be observation

A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision?

Answers

The kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.

How to calculate kinetic energy?

The kinetic energy of a moving car can be calculated using the following formula:

K.E = ½ × m × v²

Where;

K.E = kinetic energym = mass v = velocity

K.E = ½ × 1324 × 20²

K.E = 264800J

Therefore, the kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.

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Jake wants to enrich the nitrogen content of his soil through fixation which crop can he use for this purpose

Answers

Answer:

He can use beans since it is a legume and legumes have root nodules that facilitate nitrogen fixation

what does the immune system do to fight off malaria?

Answers

Answer:

The body raises the temperature of the body to create an unlivable area for  the parasite.

Explanation:

It provides Antibodies which block invasion of sporozoites into liver cells. IFN-y and CD8 T cells inhibit parasite development in hepatocytes. Antibodies block invasion of merozoites into erythrocytes. Antibodies prevent sequestration of infected erythrocytes by preventing binding to adhesion molecules on the vascular endothelium.

The area around the Sahara desert is slowly changing into a dry region like desert. Which trait is most likely to be selected in the population of plants growing in this region?

Answers

Answer:

drought resistant trait

) If you are a good school agriclture focal person, what type of forming would you suggest to the school? Give reasons. Teacher's Signature. ) If you are a good school agriclture focal person , what type of forming would you suggest to the school ? Give reasons . Teacher's Signature .​

Answers

Answer:

Farm-to-school programs are a great way to get students excited about healthy eating.

Explanation:

How are mitosis and meiosis similar?

Answers

Answer:

B

both process chromosomes are copied

All of the following organisms are involved in carbon fixation EXCEPT Group of answer choices green and purple sulfur bacteria. cyanobacteria. lichens. algae. mycorrhizae.

Answers

Answer:Mycorrhizhae

Explanation:

What types of animals are simians?

Answers

Simians are a group of higher primates animals such as monkeys, apes, and humans.

What are simians?

Simians are a taxonomic category of animals under the primate order.

Primates are divided into Simians and Prosimians. Simians are more advanced than Prosimians.

Humans belong to the primate order and are classified as Simians along with other animals such as monkeys and apes.

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the membrane that forms a compartment inside the stroma is the ____

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In chloroplasts there are structures known as thylakoids. The membrane that forms a compartment inside the stroma is the thylakoid membrane.

What is the chloroplast structure?

The structure of these organelles is as follows,

Chloroplasts are limited by an outer membrane and an inner one.

In between the two membranes, there is a space left called intermembrane space.

In the interior of the inner membrane, there is another space known the stroma.

Within the stroma, there is the third system of membranes, known as thylakoids.

Thylakoids are disk-shaped structures limited by a membrane, and in their interior, there is a space named thylakoid space.

These structures are arranged as piles, receiving the name of grana. Grana connects by a larger thylakoid membrane.

The photosynthetic pigments are placed in the thylakoids, where occurs light-dependent reactions.

According to this description, the membrane that forms a compartment inside the stroma is the thylakoid membrane.

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The following steps are involved in the process of RNA synthesis: I. Elongation II. Termination III. initiation Rearrange them in the ascending order of the process.​

Answers

Explanation:

1 initiation

binding of RNA polymerase

2 élongation

synthesis of chain

3 termination

end of synthesis and production of rna

Natural selection results in ______. Group of answer choices a decrease in the size of a population. an increase in the size of a population. increased genetic variation. offspring adapted to their current environment

Answers

Answer:

increase in genetic variation

The arteries a. serve as rapid-transit passageways from the heart to the organs because of their large radii b. act as a blood reservoir because they have the capacity to store large volumes of blood with little change in their internal pressure c. are the major sites of blood flow resistance in the vasculature d. are the site of exchange between the blood and surrounding tissues e. none of these

Answers

The arteries act as rapid-transit passageways from the heart to the organs because of their large radii. The correct option is A.

Functions of the arteries

The arteries are blood vessels that carry blood away from the heart to the cells, tissues, and organs that are in need of oxygen.

They have large radii and as such, serve rapid-transit passageways from the heart to the various cells, tissues, and organs.

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A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in:.

Answers

A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in an increase in blood flow through the vessel.

Meaning of smooth muscle

smooth muscle can be defined as a muscle in the body that is non striated and involuntary in nature.

Smooth muscles are mostly found in hollow organs, passageways and tracts of some systems.

In conclusion, A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in an increase in blood flow through the vessel.

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What is muscular dystrophy example of

Answers

Muscular dystrophy is an example of a genetically heritable disease that is autosomal dominant.

What are autosomal dominant diseases?

Autosomal dominant diseases or abnormalities are genetic diseases that are heritable just by inheriting an affected allele from either of the parents.

Unlike autosomal recessive diseases which require that alleles are inherited from the two parents, autosomal dominant diseases can be inherited from either of the parents.

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Aristotle is considered to be the founder of biology.

true
false

Answers

Answer:

False.Aristotle is chemist he not the founder of biology

EASYYYYYY
If global warming continues, what do you think will happen to the glaciers and icecaps of the Earth? What consequences will this have for people and other living things?

Answers

Answer:

Glaciers and Icecaps will melt.

The Consequences would be,

- Animals will lose their habitat due to melted Icecaps. Animals like polar bears, arctic foxes, snowy owls, reindeer, etc. They may also get extinct.

- It will create more frequent and intense coastal storms like hurricanes and typhoons.

- Coniferous plants will have problems

Answer:

The glaciers and icecaps will eventually melt

The stage of the cell cycle during which the cytoplasm divides to form two cells is called:.

Answers

Mitosis? I believe, can’t you just search that up though
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You are asked to create a new computer password made up of 4 digits followedby 3 letters.Determine how many different computer passwords are possible if digits andletters cannot be repeated. 2. Which one of the following is the purpose of relating tables in a database?A. To permit external data only to be viewed.B. To allow data to be sorted before printing to a report.C. To enable mathematical calculations to be carried out more efficiently.D. To avoid duplication of data. A pound of chocolate costs 6 dollars. John buys p pounds. Write an equation to represent the total cost c that John pays.0-0 2Question 29XS ? Write an composition that illustrate the saying the rich also cry (not more than 250 word) True or false? the chemiosmotic hypothesis states that the synthesis of atp generates a proton gradient that leads to electron flow through an electron transport chain. One way in which a tuscan order column differs from one of the doric order is that the:. This probability distribution shows thetypical grade distribution for a Geometrycourse with 35 students.GradeA BCD FFrequency 5 10 15 3 2Find the probability that a student earns a find the area dimensions are in centimeters. assharpas a knife similies Which kind of US counter-elites have historically had the most success in politically mobilizing the masses?Question 8 options:rightwingleftwingcentristnone of the above In response to ______ discrimination, congress passed the equal credit opportunity act. What is the solution to this system of equations? x + y = 2 and y - z = -3 and x + y - z = 0 Metal X is more reactive than metal Y. Metal Y is more reactive than metal Z. Which statement is correct? (1 mark)A) When metal X is placed in a solution of Y sulfate, there is no reaction.B) When metal X is placed in a solution of Z sulfate, a reaction occurs.C) When metal Y is placed in a solution of Z sulfate, there is no reaction.D) When metal Z is placed in a solution of X sulfate, a reaction occurs. Which line(s) from Ovids "Pyramus and Thisbe" reveal a plot detail?ringed by the tall brick walls Semramishad builtso we are told.no boy in Babylonwas handsomer than Pyramus.and sun had left the brine-soaked meadows dry,Delighted with their planimpatientlythey waited for the close of day. I need help with this: -1/4 x (-7/9) What function is shown in the graph above? Misplacing your cell phone and waiting in long lines to register for classes are examples of Which function is shown in the graph below? A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1 kilogram. Assuming the weight loss happened at a constant rate, about how many pounds did the group lose each day? All of the following strategies help student prepare for standardized tests except