The effects of teratogens on prenatal development is susceptibility, development stage, mechanisms, end points, access, and dose response.
What do you mean by teratogens?Teratology is the study of abnormalities of physiological development in organisms during their life span. It is a sub-discipline in medical genetics which focuses on the classification of congenital abnormalities in dysmorphology.
Teratology is the study of birth defects, and its goals are (1) to describe and determine etiology, (2) to explore mechanisms involved in the production of birth defects and (3) to devise means of prevention.
A teratogen is a substance that interferes with normal fetal development and causes congenital disabilities. Drugs, alcohol, chemicals and toxic substances are examples of teratogens.
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Why artificial design is not science?
Answer:
This is because artificial design does not have a theory that is tested with observable evidence
Explanation:
The interphase includes which of the following? A. Cytokinesis B. S phase C. Two new daughter cells
The interphase includes which of the cytokinesis
What is the interphase?
The G1, S, and G2 phases are all considered to be interphase, which is the part of the cell cycle that is not accompanied by changes that can be seen under a microscope. The cell develops, copies its DNA, and gets ready for mitosis during interphase. A cell going through interphase is not just dormant.
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then exits interphase, goes through mitosis, and finishes dividing.
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1. Read the following learned behavior using Classical Conditioning.
My Mom usually turned on the light in the fish tank before feeding her tropical fish.
Now they come to the top of their tank to be fed whenever the light is turned on.
Identify the following stimuli and responses from the story above.
a. Neutral Stimulus (NS):
b. Unconditioned Stimulus (US):
c. Unconditioned Response (UR):
d. Conditioned Stimulus (CS):
e. Conditioned Response (CR):
My Mom usually turned on the light in the fish tank before feeding her tropical fish.Now they come to the top of their tank to be fed whenever the light is turned on therefore the type of stimuli and responses from the story above is a Conditioned Stimulus (CS) and is denoted as option D.
What is Conditioned Stimulus?
This is referred to as an event that produces an involuntary response after repeatedly being paired with an unconditioned stimulus that naturally elicits that behavior.
In this scenario, the involuntary response is them going to the the top of their tank to be fed and the unconditioned stimulus is the light which is turned on which elicits such behavior.
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Which of the following statements about saliva is FALSE?
It contains the enzyme salivary amylasc.
It helps protect the tecth from decay.
It moistens food so that it can be tasted and
swallowed.
It contains a protein-splitting enzyme
It lubricates the mouth
The following statements about saliva which is false is that It contains a protein-splitting enzyme and is therefore denoted as option D.
What is Saliva?This is referred to as an extracellular fluid which is produced and secreted by salivary glands present in the mouth and it contains about 99% water, electrolytes, etc.
It helps to moisten food so that it can be tasted and swallowed and contain the enzyme salivary amylase which is a carbohydrate splitting enzyme which is therefore the reason why option D was chosen as the correct choice.
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1) At what latitude does the least variation occur?
2) Miami is at approximately 26 degrees N latitude. From the information on the graph, what is the range in mean monthly temperature there?
3) Moorestown is at approximately 40 degrees N latitude. From the information on the graph, what is the range in mean monthly temperature there?
The answers include the following:
The least variation occurs at -5 degrees N latitude. Miami is at approximately 26 degrees N latitude. From the information on the graph, the range in mean monthly temperature there is 10°C. Moorestown is at approximately 40 degrees N latitude. From the information on the graph, the range in mean monthly temperature there is 10°C.What is Temperature?This is referred to as the degree of hotness or coldness of a substance and it is influenced by thermal energy.
From the graph given, we can deduce that the range in mean monthly temperature for 26 and 40 degrees N latitude is 10°C thereby making it the correct choice.
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What kind of mutation do you see below?
Original DNA: ATGCTA
Mutated DNA: ATTCTA
a.
Substitution
b.
Insertion
c.
Deletion
Answer: the
Explanation: help
The unique properties (characteristics) of water make life possible on earth. select three properties of water and
a.for each property, identify and define the property and explain it in terms of the physical/chemical nature of water.
b.for each property, describe one example of how the property affects the functioning of living organisms
The properties of water that make life possible on earth are universal solvent, liquidity, and high heat of vaporization.
How properties of water affect the functioning of living organisms?Water is a universal solvent and almost every chemical dissolves in it, and it can take part in many chemical reactions. It is helpful in the transportation of oxygen in our body, and in photosynthesis.
It is in the form of liquid which is available for drinking and in process of photosynthesis. Many aquatic organisms' life is possible due to the liquidity of water.
The high heat of vaporization is another important property due to which water remains liquid.
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How can the daughter planaria look different from the parent planaria?
Answer:
Abstract. Asexual freshwater planarians reproduce by tearing themselves into two pieces by a process called binary fission. The resulting head and tail pieces regenerate within about a week, forming two new worms. Understanding this process of ripping oneself into two parts poses a challenging biomechanical problem.
Triangle ABC is reflected across line L to form ΔALBLCL, and AAL intersects line L at point D. Which equation is not necessarily true?
A.
m∠ACB = m∠ALCLBL
B.
AD = ALD
C.
m∠BAC = m∠BLALCL
D.
ALD = BLD
Answer:
The equation that is not necessarily true is D. ALD = BLD. This is because the line of reflection (L) does not necessarily bisect the triangle ABC, so the lengths of ALD and BLD may not be equal.
Explanation:
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Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music
What can Carmen do to make her experiment more reliable?
A. add another variable to test
B. repeat the experiment several times
C. decrease the amount of time the test subjects are exposed to the music
D. putting each test subject in a different location while they listen to the music
you have heard that increasing carbon dioxide concentrations in the atmosphere are leading to ocean acidification. You have also seen the equation for this reaction, wherein increasing CO2 reacts with H20 to form carbonic acid. In your virtual lab you have been provided with a sample of ocean water, a pH meter, and a straw. The straw lets you blow your exhaled CO2 into the water, creating bubbles of CO2 that will mix with the ocean water.
As written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.
What is Carbon dioxide?Carbon dioxide is defined as the chemical compound that is made up of molecules each containing a carbon atom covalently linked to two oxygen atoms found in the gaseous state at room temperature. In air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas.
In the virtual lab, we will have to blow the [tex]CO_2[/tex] we exhale into sea water using a straw which will create bubbles of [tex]CO_2[/tex] that will mix with the sea water. A pH meter will then be used to measure the acidity of the sea water.
So, as written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.
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A gap in the geologic record that occurs when sedimentary rocks cover an eroded surface is called a(n)
*
1 point
Intrusion
Unconformity
Fault
Extrusion
describe the relationship between genes traits and chromosomes DNA and the nucleus
Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes.
What are the functions of genes?A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
Our genes carry information that gets passed from one generation to the next. For example, genes are why one child has blonde hair like their mother, while their sibling has brown hair like their father.
The gene is considered the basic unit of inheritance. Genes are passed from parents to offspring and contain the information needed to specify physical and biological traits.
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Why is RNA different from DNA
Answer:
see below
Explanation:
RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose
DNA is double stranded, but RNA is single stranded
DNA and RNA perform different functions in humans.
1. Fernando is looking at a cell under a microscope, and he thinks it is a plant cell. Which of the following questions could he ask to determine whether or not it is a plant cell?
*
a. Does the cell have organelles that make proteins?
b. Does the cell have a gel-like substance that suspends the organelles?
c. Does the cell have a waxy outer layering that prevents the cell from bursting?
d. Does the cell have an organelle that contains genetic information and tells the cell how to behave?
Answer: D
Explanation:
Bc
Discuss the pros and cons of living in an area that is prone to tornadoes versus one that is prone to hurricanes.
Tornadoes and hurricanes are the occurrences that are common in certain areas.
What are tornadoes ?Tornadoes are more isolated and tend to occur less frequently than hurricanes and tornadoes often develop suddenly and can be monitored by weather radar, making them easier to predict.
On the other hand tornadoes can cause devastating damage due to their intense winds and can affect a smaller, more concentrated area and tornadoes can develop suddenly, leaving little time for residents to prepare.
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2. A cell is placed in a saltwater solution. The water ______ the cell will _______ the cell, _____________ the
size of the cell, meaning that the saltwater solution is ____________ to the cell.
A. inside, leave, decreasing, hypertonic B. inside, stay inside, decreasing, hypertonic
C. outside, enter, increasing, hypotonic D. outside, enter, increasing, hypertonic
A cell is placed in a saltwater solution. The water inside the cell will leave the cell, decreasing the size of the cell, meaning that the saltwater solution is hypertonic to the cell (option A).
What is osmosis?Osmosis is the net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.
If a cell is placed in a saltwater solution, it means the concentration of the solute outside the cell is more than that of the cell.
As a result, water will leave the cell (higher concentration) to the extracellular salt solution. It can be said that the salt solution is hypertonic.
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In which of the following do food webs connected all of the food chains?
Explanation:
Food webs are a group of connected food chains. Arrows in a food web go from the organism that is being eaten to the organism that is eating it. Food webs show that animals only eat one type of food. Arrows in a food web represent the flow of energy in a food web. Food webs show all of the eating patterns in an ecosystem.
Please help
Using the diagram above, answer the following questions:
6. True or False. The arrow labelled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
7. True or False. The arrow labelled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
8. Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
9. Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.
10. Which arrow or arrows represent reactions that demonstrate the conservation of mass and energy? Explain your answer.
6. The arrow labeled C does not represent a transfer of chemical energy to mechanical energy because the process is the conversion of chemical energy to another form of chemical energy.
The correct option is False.
7. The arrow labeled A represents a transfer of solar energy to chemical energy because solar energy from the Sun is converted into food in plants.
The correct option is True
8. The arrows that represent a release of carbon dioxide is C and F. C is combustion and F is respiration.
9. The arrows that indicate a process that cycles carbon from living or nonliving organisms are D, B, and E where D is the dissolution of carbon dioxide in rainwater, B is photosynthesis, and E is decomposition.
10. The arrow that represents reactions that demonstrate the conservation of mass and energy is E where the released carbon dioxide by animals is taken up by plants.
What is the carbon cycle?The carbon cycle is the ongoing process through which carbon atoms move back and forth between the atmosphere and the Earth.
The carbon cycle involves such processes as
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characteristics of Schistosome worm
-How bigis it?
-How long does it live?
-Unique body features?
Imagine you were going to model the flow of energy in an ecosystem and the flow of elements in the ecosystem using a diagram. Compare and contrast your diagrams for these two systems.(site 1)
Only 10% of energy is transmitted from one trophic level to another, whereas proteins, carbs, and lipids are transferred. Producers capture energy, which is subsequently distributed in a linear fashion from one tropic level to the next.
What is flow of energy in an ecosystem?In food webs, energy is transmitted from producers to consumers between the species. Organisms utilise the energy to complete difficult activities. The process of photosynthesis in plants transforms solar energy, which makes up the vast majority of the energy in food webs, into chemical energy.
The interactions, or food chains, between the living organisms that make up an ecosystem determine its trophic levels. In a food chain, energy moves from one trophic level to the next.
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hat is the volume of a retangle with a lenght of a 5 cm, a width of 3 cm and a height of 2 cm
Answer:
30 cm^3
Explanation:
l x w x h = v
your length is 5,
your width is 3,
and your height is 2.
5 x 3 is 15, and
15 x 2 is 30.
V = 30 cm^3.
the "^" is the cubed root.
Which sequence best describes an interaction between the integumentary and excretory systems that helps maintain homeostasis?
A. Heart rate increases -> Blood vessels constrict -> Blood pressure increases
B. Blood vessel is damaged -> Platelets begin to clump -> Blood vessel ruptures
C. Blood sugar levels rise -> Pancreas secretes insulin -> Blood sugar continues to rise
D. Body temperature increases -> Glands release sweat -> Body temperature decreases
In a population of wolves, the birth rate is 4, the
death rate is 3, immigration is 2, and emigration is
3. Calculate the population growth by filling in the
formula below.
C+D-C+D=E
Since the
population
growth is
the
population is
The population growth rate will be 0 based on the facts supplied.
How is population growth calculated?The population growth rate will be 0 based on the facts supplied.
The rise in the number of organisms in a population is referred to as population growth.
Based on the facts supplied, population growth will be computed.
The birth rate is four.
The death rate is three.
Immigration = 2
Emigration equals three.
Population increase will now look like this:
= Birth rate + immigration - death rate
= (4 + 2) - 3 - 3
= 0
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Functional groups are polar and hydrophilic. How does this affect their reaction with water? Help me please im begging you
Answer:
They easily react with water to dissolve and move across cell membranes.
btw love the prfp!
Explanation:
Hope this helps!^^
Answer:
They easily react with water to dissolve and move across cell membranes.
Explanation:
Please write topic about discovery in bacteria and write positive impact of this discovery.
The following growth pattern occurs under ideal conditions where organisms have no competition for space, mates or resources.
options
1.Logistical Growth
2.Linear Growth
3.Exponential Growth
Logistical growth pattern occurs under ideal conditions where organisms have no competition for space, mates or resources.
What do you mean by logistical growth?A logistic function or logistic curve is a common S-shaped curve with equation where x_{0}, the x value of the sigmoid's midpoint; L, the supremum of the values of the function; k, the logistic growth rate or steepness of the curve.
Logistic growth takes place when a population's per capita growth rate decreases as population size approaches a maximum imposed by limited resources, the carrying capacity( K).
Logistic population growth occurs when the growth rate decreases as the population reaches carrying capacity. Carrying capacity is the maximum number of individuals in a population that the environment can support.
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Imagine you get caught in the crossfire of a gang shooting and you are sent to the
hospital. You have lost a lot of blood and need a blood transfusion! You have Type O+
blood. The nurse in charge of your transfusion hooks you up with a bag labeled "Type
A-". Using what you know about blood typing and the proteins present, would the
transfusion be a success? Explain why or why not. Be sure to mention the protein
markers present in your body and what is being transferred to you.
When a patient's body attacks the transfused red blood cells, it might result in an acute immunological hemolytic reaction, which is extremely dangerous but extremely uncommon.
What blood transfusion side effect is the most serious? When a patient's body attacks the transfused red blood cells, it might result in an acute immunological hemolytic reaction, which is extremely dangerous but extremely uncommon.An element that harms the kidneys is released in response to the attack.This frequently occurs when the blood type of the patient and the donor blood are not a good match.The most frequent initial adverse transfusion reactions include fever, chills, and urticaria.Acute and delayed hemolytic transfusion reactions as well as bacterial contamination of blood products are among the most potentially important events.ABO incompatibility might manifest itself in a person with type A blood getting a transfusion of type B or AB blood.The new blood cells are attacked and destroyed by your immune system during an ABO incompatibility reaction.To learn more about blood transfusion refer
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13. Imagine you are on the logistics team for a remote Doctors Without Borders I
camp that has been given remote surgery equipment. When you test the equipment,
you realize that the image is too blurry. One of your colleagues says that the
blurriness is a result of not enough pixels being transmitted quickly enough by the
Internet connection. He says that the camp must ask for a faster Internet
connection. (4 points)
a. Is the request a worthwhile one to make?
Answer:
Yes, the request for a faster Internet connection is a worthwhile one to make. The blurriness of the image is likely due to the fact that the current Internet connection is not sending enough pixels quickly enough, which can be solved by requesting a faster Internet connection. A faster Internet connection would ensure that the image is clear and of a high quality, which is necessary for remote surgery.
Explanation:
What is likely to occur if humans continue to burn fossil fuels?