what organ lies over the surface of the heart​

Answers

Answer 1

Answer:

lungs

Explanation:


Related Questions

Type the correct answer in the box. Spell all words correctly. Henry went on a field trip to a national park. He not only observed the aquatic life in the pond, but also the trees, vegetation, and animal’s species on land. Which type of diversity did Henry come across in the national park? Henry came across the______ diversity.

Answers

Answerflora

Explanation:

Which statement about malaria and sickle-cell anemia is correct? (1 point)
Malaria causes a decreased incidence of sickle-cell anemia,
Sickle-cell anemia causes an increased incidence of malaria.
Sickle-cell anemia is correlated with an increased incidence of malana
Malaria is correlated with a decreased incidence of sickle cell anemia

Answers

Answer:

sickle cell anemia cause an increase risk of malaria

Explanation:

Sabita is a mother in Nepal. She lives in poverty in the Western part of the country with her two children. Everyone in her family has some degree of malnutrition or nutrient deficiency. Match each of the following deficiency diseases with its corresponding nutrient.

a. Sabita is blind from a diet devoid of fortified milk, animal products, or dark yellow and orange fruits and vegetables.
b. Sabita has an enlarged thyroid gland due to a dependence on unfortified salt.

Nutrient:
1. Iron
2. Vitamin A
3. Vitamin D
4. Iodine

Answers

Answer:

a. Sabita is blind from a diet devoid of fortified milk, animal products, or dark yellow and orange fruits and vegetables. - Vitamin A

Sabita is suffering from Vitamin A deficiency. A lack of Vitamin A usually shows itself with night blindness but can cause complete blindness if not acted upon quickly.

Vitamin A deficiency is quite common in developing or poorer nations such as the area Sabita is located and usually attacks children of women in their reproductive stage. Sources of vitamin A include; fortified milk, animal products and fruits and vegetables.

b.  Sabita has an enlarged thyroid gland due to a dependence on unfortified salt. - Iodine

Iodine deficiency leads to an abnormal enlargement of the thyroid gland leading to a condition known as Goiter which presents itself as a big bulge in a person's neck. Iodine is usually placed in fortified salt along with iron to reduce iodine deficiency so Sabita's dependence on unfortified salt is robbing her of a great source of Iodine.

The condition in which the body is deprived of minerals, vitamins and other macro and micronutrients are called malnutrition.

The correct matches and their explanation are as follows:

a. The correct answer is:

Option 2. Vitamin A

Sabita is blind from meals deficient in fortified milk, animal products, fruits and vegetables due to Vitamin A deficiency.

Night blindness is a common symptom of a Vitamin A deficiency.

It is most common in developing regions due to the lack of proper meals. The best source of vitamin A is milk, fruits and animal products like eggs.

b. The correct answer is:

Option 4. Iodine

Sabita has a swollen thyroid gland due to habituation on unfortified salt deficient in Iodine.

Iodine deficient diet causes thyroid gland enlargement a disease called Goiter. This type of disease also affects glucose metabolism and weight.

To learn more about malnutrition and diet follow the link:

https://brainly.com/question/10789147

Which of the following is true about the speed of light?
O it is a constant when the light is traveling in a vacuum.
O It speeds up or slows down depending on the observer.
O It is slowest in a vacuum.
O lt varies depending on the color of the light.

Answers

Answer:

It is a constant when the light is traveling in a vacuum.

Explanation:

Food microbiologists are scientists who have a background in both microbiology and food science. They focus on how microbes grow, cause disease, and how they can be identified from food. Their work is of importance to the food industry as it relates to the production, preservation, and spoilage of food; and it is of importance to public health and regulatory agencies due to the many diseases that are related to food intake and consumption. Food microbiologists can have varying backgrounds, including training in veterinary medicine. This scenario is about a food microbiologist who works as a food safety inspector who pays a visit to a cheese manufacturing plant and makes some interesting discoveries!
Part A-Understanding the Role of Microbes in Fermentation The Midwest is known for its contribution to the dairy industry Fermented dairy products include milk, yogurt, and cheese. The fermentation process relies on lactic acid bacteria and pasteurization. Fermentation can vary based on what food is being produced, the type of bacteria used to produce lactic acid, and the time and temperature of pasteurization. It is important to the manufacturer to produce a product that won't spoil before it is packaged and sold and that won't result in disease for those who ingest and enjoy it. Julie, a food inspector for a local Michigan health department is going to a nearby cheese plant for a biannual inspection. When she gets there, she will take a tour of the plant and allow the operators to describe what makes their cheese so special. She will use what she understands about fermentation to inquire about their production practices Please sort the following statements as being true or false regarding fermentation and its role in food production. Please recall the role that microorganisms can play in the production of foods.
1. Fermentation allows for sugars to be broken down
2. Starter cutures are for the growth of pathogens or the food such as bread, vegetables, and n food Some grains, fruits, and
3. Fermentation can be used only to Bacteria ane the only have their own microbes that used in the Correct Statements

Answers

Answer:

Statements 1 is True.

Fermentation allows for sugars to be broken down

Statements 2 and 3 are false.

Starter cutures are for the growth of pathogens or the food such as bread, vegetables, and n food Some grains, fruits, and

3. Fermentation can be used only to Bacteria ane the only have their own microbes that used in the Correct Statements

Explanation:

In microbiology, fermentation is the process where sugars are broken down by the activities of bacteria to produce alcohol and carbondioxide...therefore statement one is true.

Starter culture are microorganisms use in diary production for producing yoghurt and cheese. They perform fermentation in diary production.

What is the only source of energy production for RBCs?

Answers

Answer:

Anaerobic oxidation of glucose

7.Which of the following factors does not cause weathering of rocks.
A. light
B. temperature
C. water
D. wind​

Answers

Answer:

Light I believe.

Explanation:

who invented biology

Answers

Answer:

The term biology in its modern sense appears to have been introduced independently by Thomas Beddoes (in 1799), Karl Friedrich Burdach (in 1800), Gottfried Reinhold Treviranus (Biologie oder Philosophie der lebenden Natur, 1802) and Jean-Baptiste Lamarck (Hydrogéologie, 1802).

Explanation:

When was biology invented?

Antiquity

The science of biology was invented by Aristotle (384–322 BC). Before Aristotle, many Greek philosophers had speculated about the origins of the Earth and of Life, but their theorizing was unsupported by empirical investigation.

The linear strands of DNA in eukaryotes are efficiently packed within the nucleus of the cell. The packing of DNA strands is mediated by proteins called

Answers

Answer: Chromatin.

Hi! The answer you're looking for is chromatin.

Chromatin helps to organize DNA into the strands you're talking about, which are called nucleosomes.

Glad to help!

The role of the ___________ branch of the autonomic nervous system mediates control of organ processes when the body is essentially ______.

Answers

Answer: parasympathetic; at rest

Explanation: The parasympathetic nervous system branch of the autonomic nervous system is largely responsible for the relaxation of the body especially at rest where it undoes the activities of the sympathetic branch by decreasing respiration, heart rate and then increasing the body's digestion rate. As such, this branch is also responsible for digestion response in a relaxed, resting, or feeding states. The role therefore of the parasympathetic branch of the autonomic nervous system mediates control of organ processes when the body is essentially at rest.

Biologists designed an experiment to test the effects of compost on the development of root crops

Answers

Answer:

The crop has good yield because Compost has a good effect on root crops.

Explanation:

Compost has a great effect on the development of root crops such as onion, potato, garlic and ginger etc. Compost provide nutrients to these crops as well as soften the soil due to which they grow rapidly. It also improved ventilation, soil structure and soil texture which is very necessary for the crop. Due to ventilation, oxygen gas is available to the roots which increases growth and yield of these crops. Compost also retain water and nutrients so they are available to the roots. So those plots where compost is applied observed increase in yield as compared to other plots.

Each of two parents has the genotype blue/brown​, which consists of the pair of alleles that determine eye color​, and each parent contributes one of those alleles to a child. Assume that if the child has at least one blue ​allele, that color will dominate and the​ child's eye color will be blue. a. List the different possible outcomes. Assume that these outcomes are equally likely. b. What is the probability that a child of these parents will have the brown/brown ​genotype? c. What is the probability that the child will have blue eye color​?

Answers

Answer:

See the answer below.

Explanation:

Let the allele for eye color be represented by A. Blue is dominant over brown eye color, hence, blue allele would be A while brown eye allele would be a.

Two parents have the genotype blue/brown which is equivalent to Aa.

                   Aa    x    Aa

    AA               2Aa                aa

 blue eyes     blue eyes         brown eyes

a. Different possible outcomes: AA blue eyes, Aa blue eyes, and aa brown eyes.

b. Probability of a child from the cross having brown/brown (aa) genotype = 1/4 or 25%

c. Probability that the child would have blue eye color = 3/4 or 75%

9. What types of resources are found in the Amazon jungle?

Answers

Answer:

               Metals like bauxite, gold, manganese, copper, tin and timber.

                 

                The Amazon Jungle is rich for logging , coffee growing , meat

               production and milk production.....

A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

The correct answer is - 25%

Explanation:

A cross between true tall pea plant and heterozygous tall pea plant is the cross of tall allele whic is TT and heterozygous which is Tt, so the gametes will be formed would be - T and T by true tall plant and T, and t allele by heterozygous plant.

The Punnett square of this cross is attached with the answer, where 2 heterozygous offspring and two tall offspring produced. In which there is only two recessive short allele formed in this generation out of 8 alleles.

So the probability of short allele would be:

= (2/8) *100

= (1/4) *100

= 25%

What is the correct formula for population growth? A. D+B-I-E B. E+D-B-I C. B+I-D-E D. I+E-B-D

Answers

Answer:

C.) B+I-D-E

Explanation:

The correct formula for population growth is the individuals added to the population via birth or immigration, minus the individuals removed from the population via death or emmigration. Therefore the answer is (B+I)-(D+E), or B+I-D-E

how can an objects volume be determined using water displacement ?

Answers

Answer:

Using a graduated cylinder.

Explanation:

By using a graduated cylinder we can determine the volume of liquids.

(1)Volume of liquid=10cm^3

(2)Volume of liquid after adding an irregular substance exceeds the first one by 20cm^3

(1)V+(2)V=(3)Vtotal

10cm^3+20cm^3=30cm^3

Hope this helps ;) ❤❤❤

After entering a dark room, you turn on a light switch, but the light does not come on. Please suggest three different hypothesis that might explain your observation. Please also note how you might test these hypotheses and describe what observation(s) may lead you to conclude that one of the hypothesis is correct.

Answers

Answer:

First hypothesis; may be the power is cut. ( no power supply) Second hypothesis; may be the light switch is defective ( wall switch not working )Third hypothesis; maybe the bulb is burnout  ( light bulb may not be working )

Explanation:

The three possible hypothesis for light not to turn on immediately after one on the switch are;

First hypothesis; may be the power is cut. ( no power supply) Second hypothesis; may be the light switch is defective ( wall switch not working )Third hypothesis; maybe the bulb is burnout  ( light bulb may not be working )

We test the first hypothesis, how?

We check if other electronics connected to the same sources of power supply as the bulb is working. If the electronics are not working, then the first hypothesis is correct but if they are working then the hypothesis fails and we move on to test the next hypothesis.

To test for the second hypothesis as the first hypothesis fails, we remove the bulb and fix it into another socket which has a working switch. If the bulb comes on then the second hypothesis is correct but if the bulb does not turn on then the hypothesis fails so we move on to test the third hypothesis.

As the bulb fails to turn on in our initial socket and a second bulb is fixed in that same socket and it came on, then the third hypothesis is correct.

The three hypotheses we can derive from entering a dark room, turning on a

light switch,and the light not coming on include

There may be no power source at that momentThe bulb may be faultyThe switch may be faulty

A power source helps to provide energy to power up an appliance and where it is absent, the bulb won't light up.

A defect in the switch and bulb may also hinder the light from coming on as

the switch controls electric current flow while the bulb produces the light.

Read more about Hypothesis here https://brainly.com/question/12416923

Lactose (milk sugar) is a carbohydrate that is formed by combining galactose and glucose. Which term best describes this molecule?

Answers

Answer:

disaccharide

Explanation:

A disaccharide is a form of sugar that is made up of the combination of two other sugar molecules that are simple. They possess the property to dissolve easily in water. The process that occurs to join the two simple sugars includes the removal of water from the molecules. Sucrose, lactose, and maltose are the three disaccharides.

Answer:

disaccharide

Explanation:

A disaccharide is a form of sugar that is made up of the combination of two other sugar molecules that are simple. They possess the property to dissolve easily in water. The process that occurs to join the two simple sugars includes the removal of water from the molecules. Sucrose, lactose, and maltose are the three disaccharides.

Help with this please anyone!!!

Answers

Answer:

top right

Explanation:

Describe the transport properties of the loop of Henle and explain the interactions between the ascending and descending limbs

Answers

Answer:

The loop of henle is a part of the renal functional unit.

This handle has an ascending part and a descending part.

In the descending loop, the urine that is formed inside enters a hypotonia, since a large amount of water is absorbed and the concentrations of solutes in the urine decrease, thus generating a hypoosmolar solution, that is, with less molarity.

In the ascending loop of henle, the opposite arises, ionic channels appear that increase the concentration of solutes, this is how the urine that runs through the interior of the ascending loop of henle becomes hyperosmolar.

Hyperosmolarity is the increase in concentrations of solutes, and the increase in molarity of the solution, which in this case would be urine.

Explanation:

A very important fact is that urea is absorbed in the ascending henle loop.

Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9 + 2 pattern. They obtain their nutrition from functional chloroplasts, and each diatom is encased within two porous, glasslike valves. Which question would be most important for one interested in the day-to-day survival of individual diatoms?A) How does carbon dioxide get into these protists with their glasslike valves?B) How do diatoms get transported from one location on the water's surface layers to another location on the surface?C) How do diatoms with their glasslike valves keep from sinking into poorly lit waters?D) How do diatoms with their glasslike valves avoid being shattered by the action of waves?E) How do diatom sperm cells locate diatom egg cells?

Answers

Answer:

Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9 + 2 pattern. They obtain their nutrition from functional chloroplasts, and each diatom is encased within two porous, glasslike valves. Which question would be most important for one interested in the day-to-day survival of individual diatoms?

C) How do diatoms with their glasslike valves keep from sinking into poorly lit waters?

Explanation:

Diatoms are some of the most important organisms living on earth because of its role on the oxygen production in the planet earth. The question "how do diatoms with their glasslike valves keep from sinking into poorly lit waters?" Because of the way their nutrition is obtained from functional chloroplasts and the way them encased within two porous, glasslike valves.

Which type of muscle contracts without nervous stimulation?

Answers

Answer:

the answer is the cardiac muscle

The field of inquiry that studies human culture and evolutionary aspects of human biology; includes cultural anthropology, archeaology, linguistics, and physical, or biological anthropology. __________

Answers

Answer:

physical, or biological anthropology.

Explanation:

When there is a need to study human kind   through the X-ray of  relationships between human biology, its cultural diversity, and  evolution ,the aspect anthropology for this is Biological anthropology.

Therefore biological anthropology is concerned about how the interaction between the cultural diversity and biological process results in the  adaptations of mankind to different  environments.The influence of these on growth, behaviours, existence.

The primary focus of biological anthropologists is to study in details the concept of  ,mechanism of  variation,  adaptation.and how these lead to evolution and origin of mankind.

Sequel to this ,most evidences for this concept are obtained from the study of fossil materials,study of other related primates to man, and components of functional biology and genetics.

Which of the following pairs of organisms
would have the MOST SIMILAR niche in
their environments.
Zebra and Lion
Squirrel and Chipmunk
Robin and Bald Eagle
Oak Tree and Mushroom

Answers

Answer:

Squirrel and Chipmunk

Answer:

C. a lion hunting for a zebra in the grassland  

Explanation:

E2023

Intrinsic factor A. increases gastric motility. B. causes the release of stomach acid. C. facilitates the absorption of vitamin B12. D. protects the stomach lining from the effects of stomach acid. E. stimulates the synthesis of DNA.

Answers

Answer:

C. facilitates the absorption of vitamin B12.

Explanation:

The Intrinsic factor is a substance that is produced by the stomach and it has the important function of producing vitamin B12 which is necessary for life. Vitamin B12 is used in the production of mature red blood cells. It also improves the function of the nervous system. The production of this intrinsic factor is a very vital role of the stomach because, in the absence of a stomach, for example, in the case of a gastrectomy, a person can only survive if he is given injections of Vitamin B12.

The stomach also serves as a holding center for food and eventually delivers the food to the small intestine and the duodenum.  

You put 10ul (one loopful - the loop is calibrated for this volume) of a 0.03 ug/ul pGLO solution into the DNA tube. Calculate the ug of DNA you put into the tube.

Answers

Answer:

The µg of DNA put into the tube is 0.3 µg.

Explanation:

Here in this question, we are interested in calculating the µg of DNA put into the DNA tube.

This can be calculated using a mathematical formula.

Mathematically;

Total amount of DNA in µg = concentration in µg/ µl X volume in µl

= 10 µg/µl X 0.03µl = 0.3 µg.

What does cyclical mean

Answers

Cyclical means occurring in cycles technically meaning reoccurring.

Without this, many cycles such as the water cycle and photosynthesis would not exist. What could all these cycles not exist without?

Answers

Answer:

This question appears incomplete

Explanation:

This question appears incomplete. However, one similar substance that, if missing, many cycles (particularly the two cycles/processes provided in the question) will not exist/proceed is the sun/sunlight.

In the water cycle for instance, if there is no sun/sunlight, there will be no heat to allow for evaporation of water from the water-body (ocean, sea, stream or lake) hence there will be no cloud of water droplets in the atmosphere. The implication of this is that, the first process of the water cycle will not proceed, hence the cycle will not exist.

During photosynthesis, carbondioxide reacts with water in the presence of sun/sunlight to produce glucose and oxygen. The absence of sun in this reaction will not lead to the production of glucose which is the useful product of photosynthesis for plant.

From the explanation above, it can be deduced that the absence of the sun/sunlight will prevent the two cycles from existing.

. Buffer solution resists change to its pH when small amounts of an acid or an alkali are added to it. Buffer solutions can be used to keep the pH of a substance constant during an experiment. For example, if pH 5.5 buffer solution is added to a mixture of amylase and starch solution, the pH of the mixture will remain constant at 5.5. The student has the following buffer solutions available: 5.5, 6.0, 6.5, 7.0, 7.5 and 8.0. Describe how the student can adapt the tube experiment to investigate the effect of pH on the action of amylase.

Answers

Answer:

hey

Explanation:

which type of soil is likely to be found in horizon E

Answers

Answer:

A layer of pale,Sandy soil lacking clay and iron is likely to be found in horizon E

Answer:

bedrock

Explanation: A layer or bedrock is the type of soil is likely to be found in horizon E. Hence the correct answer is option A among the options. The bed rocks can be regarded very hard and it cannot be breakable.

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Frank and Gregory leave Centreville traveling in opposite directions on a straight road. Gregory drives 22 miles per hour faster than Frank. After 2.25 hours, they are 216 miles apart. Find Frank's speed and Gregory's speed. please answer the question in the photo A pantry contains 6 shelves each 42 inches long.The shelves are to be relined with fresh paper.The paper is sold in 1-yard rolls. The numberof 1-yard rolls needed is: A purebred tall pea plant is cross-pollinated with a tall, can you please help heterozygous pea plant. Use a Punnett square to determine the probability the offspring inheritarecessive short allele. (I point)75%25%0%50% PLEASE ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!The technology stock has risen to $9.80 today. Yesterday's price was $9.67. Find the percentage increase the part of the computer that contains the brain , or central processing unit , is also known the what ? The driveway needs to be resurfaced. what is the BEST estimate of the area of the driveway? Given the function f ( x ) = 2 x + 8 , evaluate and simplify the expressions below. See special instructions on how to enter your answers. formula for soda glass una cola,una limonada a bottle is completely filled with olive oil the mass of the bottle is 500 grams if the density of the oil os 0.92 grams per milliliter what is the volume of the bottle to the nearest milliliter? Draiman Guitars is offering 110,000 shares of stock in an IPO by a general cash offer. The offer price is $39 per share and the underwriter's spread is 8 percent. The administrative costs are $350,000. What are the net proceeds to the company? What is the perimeter of the image attached?? (PLEASE HELP I WILL MARK BRAINLIEST) I NEED IN THE NEXT 10 MIN PLS. GRAPH ATTACHED WILL GIVE BRAINLIEST Use the given graph to determine the limit, if it exists. A coordinate graph is shown with a horizontal line crossing the y axis at five that ends at the open point 2, 5, a closed point at 2, 1, and another horizontal line starting at the open point 2, negative 3 and continues to the right. Find limit as x approaches two from the left of f of x. and limit as x approaches two from the right of f of x.. After reading many books and magazine articles about tennis star Serena Williams, fourth grade student Caroline pretended that she was Serena Williams and she began writing journal entries using the viewpoint of the famous athlete. Caroline's writing is an example of a: Group of answer choices The hundreds if American indian groups that had developed by late 1400s were Which of the following will help prevent further shin split injury? Changing to play on a hard surface Resting until the discomfort goes away Finishing by taking off your footwear Moving more quickly to minimize the discomfort Use the measure of the sides of triangle ABC to classify the triangle by its sides A(-1,3) B(-3,5) C(3,2) Manny wants to be involved in a business but is not sure which type of business to join or create. He has capital to invest. He has a good network of potential investors and partners. He has no experience in management. Write any proper noun for each common noun.1.woman ......2