Answer:
a. Parasympathetic neurons. Efferent neurons
b. Carotid and aortic baroreceptors. Receptors
c. SA node. Target
d. Veins. Target
e. Sympathetic neurons. Efferent neurons
f. Arterioles. Target
g. Ventricles. Target
h. Change in blood pressure - Stimulus
i. Medullary cardiovascular centres. Integrating center
Explanation:
The efferent parasympathetic pathway is considered to be part of the autonomic nervous system. The efferent parasympathetic control is produced by nerve signals that are transported from the central nervous system to their corresponding targets.
Targets are those tissues where nerve impulses are directed. These targets include the vascular system (i.e., arterioles, ventricles, veins, etc).
Receptors are specialized cells capable of detecting a stimulus and promote a response (i.e., an electrical impulse).
The integrating center of the nervous system is represented by the central nervous system (CNS). The CNS is composed by the brain and the spinal cord, it senses the stimulus and produces the corresponding nerve impulse (i.e., response).
How could you use different research methods to complement each other when studying a particular process in the brain?
Answer is given below
Explanation:
The brain is a complex structure and requires different methods to be declared in order to obtain a clear illustrator. Cavalder study is a method of comparing the brain of a dead person. For example, Einstein compared the brain to the brain of ordinary people. It has been hypothesized that the proportion of glia cells in the neuron is higher in a person with a higher IQ, such as Einstein. However, it cannot be confirmed that only a specific brain is available. The study of the session helps us to identify the problem associated with defects in a particular area and eliminates the function of a specific area of the brain. For example, clots form in the frontal lobe during a stroke, which can sometimes lead to epilepsy. The disadvantage of these methods is that the brain is not active. A new method of EEG electroencephalogram that measures electrical signals if each neuron is present. It measures brain activity when the brain is active. The EEG can provide information about the normal patterns of electrical activity in the brain, and although the EEG allows the researcher to quickly observe when these changes occur in real time, the electrode measures the surface of the skull and each electrode measures brain waves from large areas to be placed on the brain. EEGs do not provide a very clear picture of brain structure. The image of the brain cannot be obtained by changing the electrode to measure the electrical signal. but there are MRI techniques to provide more specific brain images. Functional magnetic resonance imaging uses the scan method using magnetic fields to create an image of the brain in each activity field. Therefore all mixed methods can help to study the brain and related activities more deeply and effectively.Answer:
Brain is a complex structure and needs analgamation of various methods to get a clearer picture.
One method is cavalder studies where brains of dead person is compared. For instance , Einstien brain was compared with ordinary people brain. The ratio of glia cells to neuron was hypothesised to be higher in high IQ person such as Einstien. However , this cannot be ascertained as only one special brain was available.
Lession studies help us identify the problem associated with a lession in a particular area and conclude the function of specific region of brain.for example , during stroke the is clot in frontal lobe that leads to epileptic ceasure sometimes.
Drawback of these method is that brain is not active. So new method of EEG electro encephelogram which measure electrical signals if each neuron. It measures brain activity when brain is active.
the EEG can provide information about the general patterns of electrical activity within the brain, and although the EEG allows the researcher to see these changes quickly as they occur in real time, the electrodes must be placed on the surface of the skull and each electrode measures brain waves from large areas of the brain. As a result, EEGs do not provide a very clear picture of the structure of the brain. A still images of brain cannot be obtained by placing electrodes to measure electrical signal.
But MRI techniques exist to provide more specific brain images. Functional magnetic resonance imaging uses a scan method utilising magnetic field to create an image of brain in each activity area.
Thus all methods combined can help in study of brain and associated activities more profoundly and effectively.
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state and explain five uses of insects
Answer:
They aerate the soil-
They pollinate blossoms
Some are are scavengers, and feed on dead animals and fallen trees, thereby recycling nutrients back into the soil.
They produce silk (worms)
they clean up waste
A science student makes the following statement: I think that plants grow faster in acidic soil than they do in normal soil. Which of these is the student doing?
The given question is incomplete. The complete question is as follows:
A science student makes the following statement:
I think plants grow faster in acidic soil than they do in normal soil.
Which part of the scientific process is this?
A. Analyzing data
B. Testing a hypothesis
C. Forming a hypothesis
D. Stating a theory
Answer:
C. Forming a hypothesis
Explanation:
The given statement is a "hypothesis" formed by a science student.
A hypothesis form a relationship between independent variable and dependent variable. Independent variable is the variable that a researcher or scientist controls while dependent variable is the variable that a scientist observes and measures.
So, in the given statement, independent variable is the concentration of acidic and normal soil and dependent variable is the growth of the plant, that the student will observe.
Hence, Student is making a hypothesis and the correct option is "C".
Osteoporosis is characterized by Group of answer choices keratinization and death of epithelial cells. defective collagen production. immature red blood cells that lack hemoglobin. loss of bone mass and structure.
Answer: osteoporosis actually caused by lack of calcium
Explanation:
It is most common in womans....
And also immature red blood cells due to which blood calcium level decrease and cause osteoporosis
According to research, what role do genes play in determining whether someone will develop an anxiety disorder
Answer: Here are the options.
A. Unknown
B. No role.
C. Fully determines.
D. Can contribute but does not fully determine.
The correct option is D.
Can contribute but does not fully determine.
Explanation:
According to research, Genes can contribute to anxiety disorder but cannot fully determine because certain chromosomal or genes are linked to panic or anxiety disorder. Scientist discovered that RBFOX1 gene may make someone more likely to develop generalized anxiety disorder which shows that anxiety disorder are linked to genes. Anxiety disorder can be inherited and it is linked to specific genes.
Anxiety disorder is a feeling and not a mental illness. They symptoms of anxiety disorder are phobias, excessive worrying, memory problems, tensed muscles, irritability, struggle to sleep e.t.c. Some environmental factors also can contributed to anxiety disorder.
I am generally found both inside and outside of the nucleus in a eukaryotic cell! DNA RNA BOTH?
RNA is found outside of the nucleus wile DNA is found inside the nucleus.
Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Both the inner and outer membranes of the nuclear envelope are phospholipid bilayers. The nuclear envelope is punctuated with pores that control the passage of ions, molecules, and RNA between the nucleoplasm and cytoplasm.In eukaryotes, however, the DNA takes the form of compact chromosomes separated from the rest of the cell by a nuclear membrane.In eukaryotes, the cell's genetic material, or DNA, is contained within an organelle called the nucleus, where it is organized in long molecules called chromosomes.Learn more:
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Which infection is caused by this organism?
Malaria
O African sleeping sickness
O Girardiasis
O Amoebiasis
Answer:
Malaria by plasmodium
African sleeping sickness is cuased by tripanosoma
Girardiasis by girardia
Amoebiasis by amoeba
Explanation:
What are some questions that biologists might ask about the living things they study?
Molecular biology is asked about the living things they study
Estimate how many arteries branch off the aorta given that arteries have a diameter of 0.4 cm and a flow speed of 45 cm/s.
Answer:
Approximately 25 arteries would branch off
Explanation:
Aorta has a diameter of 2 cm, so area is pi x 1^2 = 3.142
In case of the artery, pi x 0.2^2 = 0.126
So dividing total area of aorta by total area of one artery, we get 3.142/0.126 = 25.021
Hence, about 25 arteries will be needed to carry the amount of blood that flows in the aorta vessel.
How long does it take for bugs to die?
1 2.1.5 Quiz: Specialized Cells and Tissues
Question 5 of 5
2 Points
Which statement best explains how the needs of a unicellular organism are
met?
A. Only its specialized cells work together.
B. All of its cells must work together.
C. Most of its tissues work together.
D. Its cell parts must do everything.
SUBMIT
Answer:
B. All of its cells must work together
Its cell parts must do everything explains the needs of a unicellular organism are met. So, the correct option is D.
What are Unicellular Organisms?A unicellular organism is also called as a single-celled organism, which is defined as an organism with a single cell, in contrast to a multicellular organism, which consists of many cells. Organisms fall into two categories: prokaryotic organisms and eukaryotic organisms.
Amoeba and Paramecium both are protozoans which belongs to Kingdom Protists that are unicellular organisms. Unicellular organisms are organisms that have only one cell that performs all vital functions including metabolism, excretion, and reproduction. Its cell parts must do everything explains the needs of a unicellular organism are met
Therefore, the correct option is D.
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1. Describe at least one part of the experiment procedure you thought was essential for getting good results. Did you find that certain steps in the procedure had to be followed carefully to get consistent results? If you wanted better results, do you think there is a step that could have been added to the procedure? 2. Discuss your thoughts on the overall lab design. Did it help you understand the concepts better, or did it raise more questions? Do you think you could have designed a better experiment? If so, explain how and then discuss it with your classmates. Share some of your knowledge with them to learn a little more about this experiment.
Answer:
Control environment is the most important procedures for getting good results.
Explanation:
The control environment for an experiment is the essential part for getting good results. In control environment, there is no or less chances of infestation from the external environment which can cause the results of the data more acceptable. So the scientists prefers laboratory for performing experiment as compared to outer environment. So in my opinion for getting better results, the control environment is the most necessary experimental procedure.
Yes, for getting better results I think there is a step that could have been added to the procedure is to follow the international standard procedures for taking the readings by the experimenter.
Answer:
The control environment for an experiment is the essential part for getting good results. In control environment, there is no or less chances of infestation from the external environment which can cause the results of the data more acceptable. So the scientists prefers laboratory for performing experiment as compared to outer environment. So in my opinion for getting better results, the control environment is the most necessary experimental procedure.
Explanation:
Estrogens from the vesicular follicle trigger an LH surge from the anterior pituitary. This is an example of: Estrogens from the vesicular follicle trigger an LH surge from the anterior pituitary. This is an example of: negative feedback first tier of control positive feedback fourth tier of control
Answer:
The correct answer is: positive feedback.
Explanation:
Positive and negative feedback are terms that are used to define the way a system is regulated by its products. For example, when the production of a certain substance inhibits its producer that is called negative feedback. On the other hand, when a substance stimulates its producer to keep secreting said substance, this is called positive feedback.
Estrogen is a hormone of great importance in the female reproductive cycle and is secreted by the follicle cells in response to the presence of FSH (follicle-stimulating hormone), released by the anterior pituitary when stimulated by the GnRH (gonadotropin-releasing hormone).
Estrogen appears at the beginning of the cycle to stimulate the development of the ovarian follicles, and the hormone levels continue to rise as the cycle advances. Up until the 14th day of the cycle, estrogen has a negative feedback on GnRH and FSH, but then it makes an abrupt change to now exert positive feedback on GnRH to stimulate the release of LH (luteinizing hormone), which will be responsible for ovulation.
Researchers cross a corn plant that is pure-breeding for the dominant traits colored aleurone (C1), full kernel (Sh), and waxy endosperm (Wx) to a pure-breeding plant wiht the reccessive trains colorless aleurone (c1), shrunken kernal (sh), and starchy (wx). The resulting F1 plants were crossed to pure-breeding colorless, shrunken, starchy plants. Counting the kernals from about 30 eats of corn yields the following data:
Kernel Phenotype Number
Colored, shrunken, starchy 116
Colored, full, starchy 601
Colored, full, waxy 2538
Colored, shrunken, waxy 4
Colorless, shrunken, starchy 2708
Colorless, full, starchy 2
Colorless, full, waxy 113
Colorless, shrunken, waxy 626
6708
A) Why are these data consistent with genetic linkage among the three genes?
B) Perform a chi-square test to determine if these data show significant deviation from the expected phenotype distribution.
C) What is the order of these genes in corn?
D) calculate the recombination fraction between the gene pairs.
E) what is the interference value for this data set?
D) #recombinant=116+601+4+2+113+625=1462
#nonrecombinant=2538+2708=5246
RF=R/(N+R)=1462/6708=0.2
E) I=1-Q
I-interference
Q-coefficient of coincidence
Q=O2Xo/E2xo(2xo-double crossovers)
O2xo=6
P=(distance from C1 to Sh/100)*(distance from Sh to Wx/100)
=(3.38/100)*(18.28/100)=0.006
E2xo=0.006*6708=40.248
Q=6/40.248=0.15
I=1-0.15=0.85
The diagram below shows the stages of succession in a forest ecosystem. A diagram showing 4 stages of succession in a forest ecosystem. Stage A: A mature forest. A fire occurs, resulting in Stage B, a burnt forest where nothing is growing. Stage C, pioneer plant species grow in the bare ground. More species follow and grow bigger. Stage D: A mature forest with several tree species and younger trees. Which area shows the climax community of secondary succession?
Answer:
D
Explanation:
just took the test
Answer:
D
Explanation:
Area D shows the climax of secondary succession.
Write down the oxygen requirements of the microorganisms growing in thioglycolate tube.
Answer:
Obligate aerobic microbes requires oxygen for its survival in the thioglycolate tube while Obligate anaerobic microbes does not requires oxygen.
Explanation:
Thioglycolate tube is a tube which is used to determine the oxygen requirement of different types of microbes. The concentration of oxygen is higher in the upper portion of the tube while in the lower portion, the concentration of oxygen is the lowest. So those microbes who needs oxygen for their survival will be present in the upper portion of the tube while those microbes who does not need oxygen, will be present at the bottom of the tube.
Drag the tiles to the correct boxes to complete the pairs. Match the organisms to the descriptions.
Answer:
Ok, no boxes but whatever
Mammals - Endothermic Homeostasis (Warm Blooded), Hairy Body, Have babies live
Birds - Endothermic Homeostasis(Warm Blooded), Have eggs, feathers, claws
Bacteria - Single celled, use binary fission to divide
Fungi - Multi or single celled, have chitin cellular walls
Plants - Have cellulose plant walls, multicellular organism
Archae Bacteria - Same as normal, except they live in crazy enviorments, like at the bottom of the ocean or in a volcano or radiation pool
Protozoa - Single celled organism class, like ameoba
Answer:
If this was edmentum. this was my question and answer
Explanation:
see pic below
What do you think the algae offer that the fungi can’t do
Answer:
algae are autotrophic
Explanation:
the cell wall is made up of cellulose
Plant growth is discovered by the color of light
Answer:
no
it wasn't like that buddy
Answer:
Yes, different kinds of light help different kinds of plants grow.
Explanation:
For example, Blue light helps veggies to grow. Hope this helped you in some way!
Which statement best describes monsoons?
They force cool, moist air from oceans to rise.
They are winds that blow in the opposite direction of a normal wind.
They bring heavy rain in the winter and in the summer.
They influence precipitation as wind moves near a mountain.
Answer:
The correct answer to the following question will be Option B and C.
Explanation:
Monsoon seems to be a change throughout the course including its predominant hot air flowing from either the south-western oceans of India towards India.The summer monsoon gives a luxurious atmosphere as well as heavy rains to something like the coastline of Asia (south-east), where many monsoon showers of rain undergo their rainy season throughout the winter.The other choices are not related to the given circumstances. So that Option B & C would be the appropriate choice.
Answer:
Pretty sure its B not sure tho. If its correct, mark as brainliest
Explanation:
A biologist is studying how green sea turtles choose where to lay their eggs. She makes a hypothesis that because this species is related to other sea turtles through common ancestry, they probably all use the same process. This biologist formed her hypothesis using:________
a. A hunch
b. The unifying theory of evolution
c. Experimentation
d. The scientific method
e. Observations of green sea turtles' behavior
Answer:
Option b
Explanation:
Hypotheses are carried out as proposed explanation made on the basis of limited evidence which serves as a beginning point for further study.
The biologist in this case has a limited evidence with regards to this species which is just only about its ancestry, so her hypothesis was based on the unifying theory of evolution which is the framework within which biologists ask questions about the living world providing predictions with regards to directions about living things.
The correct answer, unequivocally, is (B).
- This is because she used her knowledge that, from an standpoint of evolution, these turtles were related to each other.
There are limitations to applying the Biological Species Concepts, based on its criteria, so in some cases it is actually better to use the Morphospecies Concept. Which of the following would require being defined using the Morphospecies Concept instead of the Biological Species Concept?
a. Birds
b. Dinosaurs
c. Insects
d. Mammals
e. Flowering plants
what is biodiversity Which of the following shows the correct chronological order (geologically oldest to most recent) of near or total extinctions for the organisms listed?
Answer:
Biodiversity is the diversity of living beings, be they animals or plants, which together make up the totality of life on planet Earth. In other words, the term biodiversity necessarily implies a large number of different species and genres of living beings, which interrelate with each other through food chains, sharing natural habitats or even establishing more complex links. In any case, it requires that heterogeneity that implies the existence of several different living beings from each other in a given space.
What should be done following health violations from an inspection?
Answer:
correct the identified
Explanation:
If health violations are found out during inspections, the inspector should give him warning about the violation or give him a ticket or fine. If high level of violation if found out, then the license of the restaurant or company should be cancelled.
What is heath violation?Health violation is avoiding the condition that are necessary for health during the process or manufacturing. These violation leads to the poor health of the people.
Health inspectors are the person who check the conditions of hotel and factories related to the health of the people. If they found any violation, the companies should correct them.
Thus, the inspector should issue him a warning about the infringement or issue him a ticket or fee if any health violations are discovered during inspections. If a serious breach is discovered, the restaurant's or business' license should be revoked.
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Which statement below can NOT be used
when describing volume?
A. Volume is the amount of space that an object occupies.
B. The volume of an object is the same as the weight of that
object.
C. Volume can be measured in cubic centimeters.
D. Volume is calculated using a formula: V = 1xwxh.
Give 8 Differences each between immunization and immunity
Anyone that answers I will mark the person as brilliant
Answer:
1- The immune system develops antibodies to the disease so that it cannot make you sick again.
2- Immunization describes the actual changes your body goes through after receiving a vaccine.
3- Immunization is the process whereby a person is made immune or resistant to an infectious disease.
4- Vaccines stimulate the body’s own immune system to protect the person against subsequent disease.
5- Immunity is the capability of multicellular organisms to resist harmful microorganisms from entering their cells.
6- Immunity is the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
7- Immunization is the action of making a person or animal immune to infection.
8- Vaccines strengthen the immune system.
The psychologist most closely associated with the school of functionalism is
Answer:
Explanation:
Edward B. Titchener. Functionalists, including psychologists William James and James Rowland Angell, and philosophers George H, they stressed the importance of empirical, rational thought over an experimental, trial-and-error philosophy.
hope it helps
Electrons spin in shells around the nucleus. The closest shell (n = 1) can contain a maximum of____
electrons?
4
2
8
6
Answer: 2 electrons
Explanation:
The inner shell (1st shell) can hold 2 electrons, the next shell can hold 8 electrons and the third shell can hold 18 electrons.
Answer:
2 electrons
Explanation:
Electrons have various shells. The first one is called the K shell and it holds a maximum of two electrons.The next is the L shell (8 electrons), then the M shell and so on.
Define and compare four level of protein organization.
Explanation:
There are four levels of protein structure: primary, secondary, tertiary, and quaternary. These levels also reflect their temporal sequence. Proteins are synthesized as a primary sequence and then fold into secondary → tertiary → and quaternary structures.
as an aspiring nurse,the need for the culture of a new pathogenic microorganism in the laboratory has been allocated to you. Applying all the guidelines involved in the successful isolation and cultivation of microbes, discuss the culturing system that is most appropriate for this activity and state your reasons for this choice
Answer:
The culturing system depends on the sort of microbe allotted to segregate namingly bacteria, viruses, or fungi. Each microbial pathogen has particular culture media for disconnection and for development or replication, we need culture media.for model bacterial pathogen can be separated by plating the example in fitting media by 3 strategies that are streak plate or pour plate or spread plate
Out of the above streak, plate gives the best outcomes in single disengaged provinces which can be additionally cultured and characterized for creation of pure culture