a. When a person gets a stroke or heart attack, brain or cardiac (heart) muscles die. Why is this a
problem?

Answers

Answer 1
heart attack and strokes are caused by interruptions to the normal flow of blood to the heart or brain. without access to oxygen-rich blood and nutrients, heart or brain cells begin to malfunction and die. this cell death can set off a series of harmful effects throughout the body.

Related Questions

please define menstruation​

Answers

the process in a woman of discharging blood and other materials from the lining of the uterus at intervals of about one lunar month from puberty until menopause, except during pregnancy.

Answer:

a cyclical discharging of blood, secretions, and tissue debris from the uterus that recurs in nonpregnant breeding-age primate females at approximately monthly intervals and that is considered to represent a readjustment of the uterus to the nonpregnant state following proliferative changes accompanying the preceding ovulation

A student observed a dying plant in the corner of their science classroom. They learned the process of Photosynthesis and Cellular Respiration already in class. The students were trying to remember the correct chemical equation for the process. In order for the plant to be successfully creating its own food which chemical equation did the student write correctly?

Answers

Answer:

The general chemical equation for photosynthesis is

6CO2 +6 H20    →    C6H1206 + 602,

Where CO2 is carbon dioxide, H20 is water, C6H12O6 is glucose, and O2 as oxygen a byproduct.

the process begins with the splitting of water molecules-Photolysis.

2H20  +2 NADP + 8 Photons → NADPH + 2H+2 O. Photons is sunlight that splits the water molecules.

Cellular respiration  is the reverse of the process which is the

C6H1206 +6 O2 → 6H20 +6 CO2 +ATPs.

ATPs is the chief product, while C02 is the byproduct.

Explanation:

Scientists believe that most early mammals were: large very small medium sized none of the above

Answers

Answer:

small bcz they had not fully evolved

Answer:

large

Explanation:

Which statement describes how to appropriately handle live earthworms in a lab investigation? Pick up earthworms gently with moist hands. Place individual earthworms on the lab table while setting up equipment. Press the ends of the earthworms firmly against the table to keep them still. Hold onto earthworms tightly with metal tweezers.

Answers

Answer:

Pick up earthworms gently with moist hands describes how to appropriately handle live earthworms in a lab investigation

Hope it helps :)

If you drop a bouncing ball from a height of 40
centimeters, explain why it can only bounce back up
to a height of less than 40 centimeters.

Answers

Answer:

because a lot of the energy has been lost to its surroundings

Explanation:

The gluten-free diet was originally intended for people with celiac disease, but it’s now become a new fad diet for the general population. Many people state that gluten-free diets are beneficial for people who aren’t sensitive to gluten, while others suggest that there’s no benefit. Use credible resources to evaluate the argument yourself. Do you think there’s sufficient scientific evidence to support the use of a gluten-free diet in people who aren’t sensitive to gluten? Provide evidence that supports your argument.

Answers

Answer:

The gluten free diet is helpful for the people that are sensitive to food with gluten it which occurs due to the celiac disease. It was originally meant for the such people but it becomes a new fad. However, there is no compelling evidence to support that gluten free diet helps in health improvements n non sensitive people.

In other hand there are majority of doctors are against the use of gluten free diet is not good for various body organs like heart. A study concluded that there are lower risk of heart disease in people take more gluten. Doctors and various study suggests that people with no celiac disease should not avoid gluten.

Answer:

There’s no benefit to a gluten-free diet for people who aren’t sensitive to gluten. Many websites state benefits of a gluten-free diet. These benefits range from weight loss to improved heart health. None of these sites backed up their claims with scientific research. More credible sites consistently state that there’s no scientific research to back up these claims. Right now, there’s no evidence that supports the benefits of a gluten-free diet in people who aren’t sensitive to gluten.

Explanation: just took test !!

How do rivers become large as they travel across land

Answers

Answer:

groundwater rises, adding water to rivers. tributaries combine, adding water to rivers. ice sheets melt slowly, adding water to rivers. rainfall in an area increases, adding water to rivers.

Explanation:

The answer is B please mark me as brainliest

What is the difference betwen the modes of nutrition
of fungi and animals?

Answers

Answer:

The animals are the consumers of the ecosystem but the fungi have wide range of nutrition from the parasites to the saprophytes mode. Animals have multicellular organization but fungi dont always meed to be multicellular, they may be unicellular also.

Which level of classification includes the most species

Answers

Answer:

Domain is the highest level of classification.

Answer: Domain

Explanation:

Which Punnet square allows for the possibility that Tom and Alices children have attached earlobes?

Answers

Answer:It is the second one

Explanation:Due to the second punnet square featuring the ee combination, they can have attached earlobes. Recessive traits have to be ee(both recessive), and as a capital E (dominant trait) would override the recessive trait, only the second square allows for attached earlobes

List the different forms of potential and kinetic
energy.

Answers

Answer:

answer is below :)

Explanation:

types of potential energy:              

-Gravitational potential energy.

-Elastic potential energy.

-Nuclear energy.

-Chemical energy.

- electric potential energy

types of kinetic energy:

-Flying Airplane.

-Walking & Running.

-Cycling.

-Rollercoasters.

-Cricket Ball.

-Skateboarding.

energy is captured for photosynthesis by​

Answers

Answer:

Photosynthetic cells contain chlorophyll and other light-sensitive pigments that capture solar energy. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as glucose.

Answer:

Chlorophyll

Explanation:

Energy for photosynthesis is captured by chlorophyll molecules to get it used in photosynthesis

Assume Deb eats three 150-gram bags of potato chips each day. Use the USDA food database to calculate Deb’s calorie consumption and the number of grams of protein, carbohydrates (by difference), and the total fat that she eats. You may use any brand of potato chips in the database, but state the brand in your answer.

Answers

Answer:

Let’s consider that she eats Herr’s Baked Ripple Cut Potato Chips. If she ate a total of 450 grams of these potato chips every day, she will consume about 1,930 calories, 32.13 grams of total fat, 32.13 grams of protein, and 353.36 grams of carbohydrates.

Explanation:

right auricle is bigger than left auricle why

Answers

Explanation:

Veins carry deoxygenated blood from different parts of the body to our heart. ... Since a larger volume of blood is collected in the right auricle than that of the left auricle, right auricle is larger than the left auricle.

what is the definition of vacole

Answers

a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid. Hope this helps! :)
Have a great day

a vacuole is a cell inside of the cytoplasm.

In roses, red flowers and long stems are dominant traits. A rose plant that is homozygous for both red flowers and long stems is
crossed with a rose plant that is heterozygous for red flowers and homozygous for short stems. What percentage of the offspring
will exhibit red, long-stemmed flowers?
25 percent
O 50 percent
O 75 percent
O 100 percent

Answers

Answer:

This is late but the answer is 100%

Explanation:

I got a 100 on the test

The percentage of the offspring that will exhibit red, long-stemmed flowers is 100 percent; that is the last option as all of the offspring will show dominant traits, which are red, long-stemmed.

What is genetic crossing?

In the context of genetics, traits are characteristics that are passed down from parents to offspring through their genetic material (DNA). These traits are determined by genes, which are segments of DNA that contain the instructions for the development of a particular characteristic. Here, the gene for flower color in roses has two alleles: R (red) and r (white). The R allele is dominant, and the r allele is recessive. Similarly, the gene for stem length has two alleles: L (long) and l (short). The L allele is dominant, the l allele is recessive, and from the cross, all will be dominant.

Hence, the percentage of the offspring that will exhibit red, long-stemmed flowers is 100 percent; that is the last option.

Learn more about the genetic crossing here.

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Which increases the rate of soil formation?
Mixed layers
More Precipitation
Cooler temperatures
Very hard parent material

Answers

Answer: more precipitation

Answer:

B. more precipitation

Explanation:

The soil needs more rain or the organic material will die.

why is waters high specific heat good for living things

Answers

Answer and Explanation:

Water's high specific heat means that the temperature of the water takes a long time to change. Living things that live near bodies of water experience temperatures different than inland, which is typically advantageous. During the summer, water remains cooler than the air for a period of time, and in the winter, the water remains warmer than the air for a period of time. In turn, the air in the areas with a body of water is typically increased or decreased a few degrees in temperature depending on the season. In the winter, this also produces what is called the "lake effect", in which snow is produced during cooler atmospheric conditions when a cold air mass moves across long expanses of warmer lake water.

The cause of humanity's increased water consumption is an increased population. What is the effect?

Answers

Option are not provided in the question. The complete question is as following:

The cause of humanity's increased water consumption is an increased population. What is the effect?

A. less potable water, a growing threat to biodiversity

B. more potable water, a growing threat to biodiversity

C. less potable water, a decreased threat to biodiversity

D. more potable water, a decreased threat to biodiversity

Answer:

A. less potable water, a growing threat to biodiversity

Explanation:

The increasing population of human causes increase in water consumption that leads to reduction in portable water, which is a growing threat to biodiversity .

Portable water or freshwater is used for drinking by humans beings along with that it provide habitat to many diverse marine wildlife and they are important to local ecosystems as they provide sources of income and food to humans and other wildlife.

Freshwater or portable water play very important role to control flood and erosion.

So, decrease in portable water result into decrease in biodiversity.

Hence, the correct option is A. less potable water, a growing threat to biodiversity .

Name the tissue which allows buoyancy to aquatic plants? * a) chlorenchyma b) collenchyma c) aerenchyma

Answers

The right answer is aerenchyma.

Explanation:

The cells of aerenchyma makes a network which has wide air space or air cavities for gaseous exchange.The air cavities make the plant light and buoyant and hence plants can float easily in water.

Hope it helps

The act of speech is termed

Answers

Answer:

The acts speakers perform when they make an utterance are called speech acts.

A speech act is an utterance that serves a function in communication. We perform speech acts when we offer an apology, greeting, request, complaint, invitation, compliment, or refusal. ... Here are some examples of speech acts we use or hear every day: Greeting: "Hi, Eric.

Explanation:

One important area of pragmatics is that of speech acts, which are communicative acts that convey an intended language function. Speech acts include functions such as requests, apologies, suggestions, commands, offers, and appropriate responses to those acts.

Answer: Phonation

Explanation:

Observations have led to all of the following except ___.

Answers

Answer: experimentation and then conversion of experiments into theories

Observations lead to form hypothesis and then deduction which are proved statistically by experiments

What is artificial selection?
A. When 60 percent of a species dies at one time
B. When humans breed an animal for a certain trait
C. When a new allele is formed by mutation
D. When extreme traits are selected by nature
SUBMIT

Answers

Answer:

Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

B when humans breed an animal for a certain trait

How could meiosis help students

Answers

Answer:

by having students draw germ cells and gemetes containing chromosomes with labelled alleles , instructors can assess student understanding of the structure of chromosomes .

Answer:

Meiosis help students by:

1. Having students draw germ cells.

2. Instructors can assess student understanding of the structure of chromosomes.

3. The relationship between germ cell genotype and gamete genotypes.

Hope it helps


Which correctly describes a difference between the male and female
reproductive systems?
O A. Males store gametes in the ovary.
O B. Females produce gametes every day.
C. Males receive gametes from females.
D. Females produce fewer gametes​

Answers

What describes the difference between the male and female reproductive systems is that "Females produce gametes every day". Option B. This is further explained below.

What is reproductive systems?

Generally,  The reproductive system is simply defined as the organs that are involved in the production of children.

In conclusion, The reproductive systems of males and females bear differences affiliated with gametes production.

Read more about Reproduction

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Answer:

D. Females produce fewer gametimes

Explanation:

Do I really need to?

todo sobre la digestion

Answers

Answer: El sistema digestivo humano consiste en el tracto gastrointestinal más los órganos accesorios de la digestión. La digestión implica la descomposición de los alimentos en componentes cada vez más pequeños, hasta que puedan ser absorbidos y asimilados por el cuerpo. El proceso de digestión tiene tres etapas.

Explanation:

What's the easiest
way to learn Krebs cycle?​

Answers

Answer:

"Our City IS Kept Safe And Secure From Mobsters"

Explanation: Capitals represent the first letter.

Oxalacete

Citrate

Isocitrate

Alpha-ketoglutamate

Succinyl-coA

Succinate

Fumarate

Malate

Answer:

Get diagrams and look at what is changing

Explanation:

12. Sexual reproduction in animals or plants relies on the union of two specialized
cells known as


Answers

i belive it would be the zygote.
It relies on gametes. Gametes are to join a gamete during sexual reproduction.

What is a good property of an indicator?

Answers

Answer:

Acid base indicators are weak and acids and bases, which are used to signify the end point of neutralization reaction. The type of indicator used for a neutralization reaction depends on the strength of the acid and the base, that are involved in the reaction. A good acid base indicator must have a good pH range and it must be able to produce specific and identifiable color in specific acid base medium.

or

Two good properties of an indicator are as follows-

1) It should be specific- It means that the changes, which are measured by the indicator should be expressed in precise terms so that appropriate assessment could be made.

2) It should be time bound- This means that the measurable changes should arrive withing a particular time limit.

Example of indicator- Litmus is an acid base indicator that turns acidic solutions red and basic solutions into blue color.

What section of dna are used in dna fingerprinting

Answers

Answer:

Repetitive DNA sequences "minisatellites." The two major uses for the information provided by DNA-fingerprinting analysis are for personal identification and for the determination of paternity. DNA fingerprinting is based on DNA analyzed from regions in the genome that separate genes called introns.

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