In FEOTAL DEVELOPMENT, there are various changes which occurs Both in the foetus and the mother. These changes are broadly grouped into three stages which includes:
--> First trimester: This stage starts from conception to 12 weeks. This stage in pregnancy involves the following changes in the foetus which is called an embryo at this stage:
• the major organ systems which includes the digestive system, the heart and circulatory system begins to develop
• facial features starts to develop.
• fetus begins rhythmic breathing movements at 10th week of this stage and continues through out the gestation period.
• teeth starts to harden and connect to the jaw bone at the 10th week of this stage.
• By the end of this stage baby's arms, hands, fingers, feet and toes are fully formed.
--> SECOND TRIMESTER: This stage starts from 13th week through 28th weeks of pregnancy. It involves the following changes:
• the heartbeat is now audible and this can be detected using the instrument called doppler.
• Your baby is covered by fine, feathery hair called lanugo and a waxy protective coating called vernix. Eyebrows, eyelashes, fingernails, and toenails have formed.
• the finger and toes are well defined with the prints visible enough.
--> Third trimester: This lasts from 29th week to due date which is usually at 40th week. The following changes occurs
• the brain continues to develop rapidly so that it can blink, close the eyes, turn the head, grasp firmly, and respond to sounds, light, and touch.
• it continues to develop reserves of body fat which will help out in early days after birth.
Therefore the CORRECT option is D which states that the fetus develops toenails,lips and eyelashes.
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electromagnetism is the interaction between _______ and ________
A) Kinetic energy and thermal energy
B) electricity and magnetism
C) North pole and south pole
D) Magnets and light waves
Answer:
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. ... At high energy, the weak force and electromagnetic force are unified as a single electroweak force.
Explanation:
effects of antibiotics lab
Answer:
It helps us to defeat bacteria in our body
Antibiotics either kill or slow the growth of bacteria. Side effects can include diarrhea, an upset stomach, and nausea.
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Explain how rocks are able to transform into any of the three types of rocks.
The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle. Answer:
Explanation:
list 10 uses of radiation
Answer:
Security
Space Exploration
Measurement
Sterilization/Irradiation
Carbon Dating
Promoting Genetic Mutation
Clean Air
Smoke Detectors
nuclear medication
x-rays
Explanation:
Some of the organic material manufactured in the estuarine communities is exported to other ecosystems. What type of ecosystems receive this material
Answer:
Coastal and open-water ecosystems
Explanation:
Organic material manufactured in estuarine communities is exported to coastal and open water ecosystems. This organic material is very beneficial to these ecosystems as it allows many nutrients to float in the changing tides. These nutrients are a very rich food source for coral reefs and kelp forests. Furthermore, these nutrients arrive in the ecosystem in the form of debris that can serve as breeding grounds for very important organisms in the region and that serve to maintain the food chain.
Need help please and thanks
Answer:
B
Explanation:
Hope this helpful for you
Hey I don’t understand this can someone help?
Answer is True.
if you search in website "Electromagnetic Wave" The same picture will pop up
Photosynthesis can be modeled by its overall chemical reaction. Classify the substances as reactants or products of the overall chemical reaction, or as neither reactants nor products.
water (H2O) , oxygen (O2) , carbon dioxide (CO2), nitrogen (N2) , ammonia (NH3), water (H2O), sugars
Reactants:
Products:
Neither Reactants Nor Products:
Answer:reactants: carbon dioxide water
Products:oxygen sugars
Neither reactants nor products: nitrogen ammonia
Explanation:
Following are the reactants and products of photosynthesis:-
Reactants: Carbon dioxide and WaterProducts: Oxygen and SugarNeither reactants nor products: Nitrogen and AmmoniaWhat is Photosynthesis?Photosynthesis is a process which is used by plants and other organisms to convert light energy into chemical energy.
It is important for two reasons.
Firstly, it provides the energy which is used by all other organisms to survive. Secondly, it removes carbon dioxide from the atmosphere which replace with life-sustaining oxygenLight energy converts carbon dioxide and water which are the reactants into glucose and oxygen which are the products.
[tex]6CO_2+6H_2O ---- > C_6H_12O_6+6O_2[/tex]
The process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts in the plants.
Thus, following are the reactants and products of photosynthesis:-
Reactants: Carbon dioxide and WaterProducts: Oxygen and SugarNeither reactants nor products: Nitrogen and AmmoniaLearn more about Photosynthesis, here:
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What I Have Learned
Directions: Complete the statements in the paragraph by writing the appropriate
words in the box. Refer to the word box below. Write your answers in your science
activity notebook.
the part where no. 13 is isn't shown so I'll just type it.
Pollution in air, water and soil is the result of these changes, Eventually, causing harm and (13) ______ to living things.
please kindly answer these.
Answer:
Air pollution can significantly hurt the quality of soil and water resources. When we pollute our air, we are also polluting the precipitation that falls into water bodies and soils.
Role of liver in carbohydrate metabolism.
Answer:
In the metabolism of carbohydrates, the liver helps to ensure that the level of sugar in your blood (blood glucose) stays constant. If your blood sugar levels increase, for example after a meal, the liver removes sugar from blood supplied by the portal vein and stores it in the form of glycogen.
Explanation:
Descibe a structural adaptation for obtaining food of a mammalian predator carnivore.
Answer:
Carnivores have biological adaptations that help them hunt. Carnivorous mammals such as wolves have strong jaws and long, sharp teeth that help them grab and rip apart their prey. Plant-eaters, on the other hand, usually have big molars that help them grind up leaves and grasses.
I don’t understand this can someone help me
i didnt understand it too sorry
Which of the following describes a phenomenon occurs when we observe plants that wilt
Answer:
according to Brainly;"The xylem releases all its water, describes a phenomenon that occurs when we observe plants that wilt"
Explanation:
hope this is helpful
Answer:
The Stomata close, cutting off transpiration and gas exchange.
Explanation:
When the plant wilts, its stomata close in an attempt to maintain homeostasis.
Movement of Earth's crust along plate boundaries produces *
A) Fronts
B). tides
C) hurricanes
D) earthquakes
Answer:
eartquakes
Explanation:
tectonic shift is the movement of the plates that make up the earths crust
Super saturated solutions are used to make rock candy. Please describe how the crystals are formed, be sure to use the terms Solute and Solvent.
Answer:
Once the solution cools, it now has more solute than it normally could have, and this is called a supersaturated solution. Once a solution becomes supersaturated, it wants to crystallize the excess solute. The solute will form crystals on any surface. In our case the surface is a string, and we are using a lifesaver candy as our “seed.”
Explanation:
Rock candy is a type of candy made by growing sugar crystals on a string or stick.
Why are Super saturated solutions used?Super saturated solutions are often used to make rock candy because they contain more solute (sugar) than the solvent (water) can normally dissolve at a given temperature.
The first step in making rock candy is to heat water in a saucepan and add sugar to it. The sugar dissolves and forms a solution as the water heats up. After that, the solution is heated until it is completely saturated.
This occurs because the super saturated solution is unstable, and the excess solute (sugar) in the solution wants to escape and form crystals.
As time passes, more sugar dissolves from the solution and adheres to the crystals on the string or stick, causing them to grow larger.
The process is repeated until the crystals reach the desired size or until all of the excess solute has been removed from the solution.
Thus, preparing a super saturated solution of sugar and water, then dipping a string or stick into the solution and allowing the excess solute to come out of the solution and form crystals on the string or stick, is the process of making rock candy.
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Are chicken nuggets more like a taco or a hamburger?!?!?! I NEED TO KNOW!!!!!!!!!!!!!
Answer:
HAMBURGER???
Explanation:
Answer:
hamburger
Explanation:
Please HELP!!!!!!!!!!!!
Here is the graph that represents a function f. Which equation represents the function?
Answer:
A
Explanation:
Cual hormona de la pituitaría estimula la producción de testosterona?
Explanation:
Cuando los niveles de testosterona están bajos, la hormona liberadora de gonadotrofina (GnRH) es liberada por el hipotálamo que a su vez estimula la glándula pituitaria para liberar LH. Esta última hormona estimula los testículos para sintetizar la testosterona.
Answer: hormona Folículo-estimulante (FSH) y hormonas luteinizing (LH) - estas hormonas se conocen colectivamente como gonadotropinas, que estimulan el ovario para liberar el estrógeno y progesterona y los testículos para liberar la testosterona
Explanation:
It takes 100 N to move a box 10 meters in 5 seconds. How much power is
required?
O A 200 W
O B. 5,000 W
C. 1.000 W
O D. 20 W
Which of the following best describes the producers in a terrestrial food web?
a- They convert energy from the sun to chemical energy.
b- They are at the top of the energy pyramid.
c- They are unaffected by decomposers.
d- They obtain their energy from consumers.
Answer:
The correct answer is - a- They convert energy from the sun to chemical energy.
Explanation:
Producers in any food web or ecosystem are the organism that can produce the food and energy on their own. Normally these organisms are green plants that can perform photosynthesis in order to produce chemical energy from light energy that comes from the sun.
Producers not only provide food and energy to themselves but also provide food and energy to each trophic level directly or indirectly. Producers are present at the base of the energy pyramid.
Select the correct anter
Which set of proteins assist in the process of adding amino acids one by one to the growingamine and chain during transfer
Initiation factors
B. Elongation factors
C. Release factors
Answer:
b
Explanation:
The distance from the midpoint of a wave to a crest or a trough is the wave’s
a.Amplitude b.Wavelength c.Frequency d.Speed
Answer:
Amplitude
Explanation:
Amplitude: Distance from the midpoint to a crest (or trough) of the wave. (The “height” of the wave.)
Jealous can spark?
all of the above
passion
worry
excitement
Answer:
All of the above.
Explanation:
Jealousy is the emotional state of feeling jealous. This is more of a negative aspect rather than a positive one, but can also sometimes be a positive aspect in a relationship.
Jealousy incites the person to have negative feelings like anxiousness, wrath, anger, possessiveness, excitement, etc. But it can also lead to an increase in the passionate feelings for the other person, which can make the individual pay more attention to the other person. In this aspect, it becomes a positive thing.
Thus, the correct answer is all of the above.
how does genetic factors influence the growth of trees in a forest?
Hi there. An answer is below!
Explanation:
The genotypes in a plant determines the amount of time it takes to grow. For example, if a plant has genotypes that are young, they will grow quicker. A plant that has older genotypes will grow slower. These genetic factors are what make trees grow quicker or slower than each other.
Determine the type of inhibition that has occurred in a first order Michaelis-Menten enzyme catalyzed reaction that has yielded the following data. Vi is the velocity in the presence of inhibitor, V is the velocity when run without inhibitor and [S] refers to the substrate concentration. [S] V Vi 3.333 0.283 0.055 1.000 0.260 0.054 0.400 0.222 0.052 0.263 0.197 0.051 0.179 0.171 0.049
Answer:
competitive inhibition
Explanation:
Given in the first order [tex]\text{Michaelis-Menten enzyme catalyzed reaction}[/tex].
[tex]$V_i$[/tex] = velocity in the presence of the inhibitor
V = velocity when run without the inhibitor.
S = substrate concentration
We need to plot a curve for [tex]$\frac{1}{[V]}$[/tex] vs [tex]$\frac{1}{[S]}$[/tex] and a second plot of [tex]$\frac{1}{[V_i]}$[/tex] vs [tex]$\frac{1}{[S]}$[/tex]
By plotting the curve we see that the slope and the intercept are not the same for the two curves.
And also, the [tex]$V_{max}$[/tex] for the second curve with the inhibitor is lower than the first curve.
Therefore, the inhibition type would be competitive.
A researcher wanted to create a loss of function mutation for studying Type I Diabetes in a model animal. What mutation would mimic Type I diabetes
Answer: A knockout mutation in which the gene is "erased" through a nonsense mutation. In this way, the gene that codes for insuline would be eliminated, and no insuline would be produced.
Explanation:
Type I diabetes is a chronic disease in which no insulin or too little insuline is produced by the pancreas. There are many factors that can trigger Type I diabetes, including genetics and certain viruses. Although Type I diabetes is more likely to appear during childhood or adolescence, it can also begin in adulthood. It is a disease that cannot be cured but can be treated, and treatment focuses on controlling blood sugar levels with insulin injections and a controlled diet.
Insulin is produced by beta cells in the islets of Langerhans of the pancreas. It is a hormone used to allow glucose to enter the cells to produce energy, helping to transport the sugar from the blood to the other tissues of the body. So, through glycolysis and cellular respiration, the necessary energy is obtained in the form of ATP.
So, we could consider that the gene coding for insulin is not working properly or not working at all. So, a mutation that would mimic Type I diabetes is a knockout mutation in which the gene is "erased" through a nonsense mutation (a point mutation in DNA that results in the appearance of a premature termination codon, so the synthesis of the protein ends earlier, it is not completed). In this way, the gene that codes for insuline would be eliminated, and no insuline would be produced. This type of mutation can be achieved in a laboratory and rhis results in organisms that do not express the gene in a specific tissue or in the whole organism.
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Answer:
commensalism
an association between organisms in which one benefits and the other derives nor harm
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All of the above .
El NIÑO is a climate pattern that describes the unusual warming of the surface waters in the eastern of the tropical Pacific Ocean .
It affects the climate so all the above are impacted by it.
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Neptune
?
It is sometimes farther
from the sun than Pluto.
Jupiter
?
It has seasons that last 20
years.
Uranus
?
It has the "Shepherd
Moons."
Saturn
?
It is the largest gas giant.
Answer:
Neptune is sometimes farther
Uranus has seasons that last 20 years
Saturn has shepherd moons
Jupiter is the largest gas giant
Explanation:
They're probably correct but check
above has a mass of 30 kg the area of the base is 150 metre square find the pressure exerted by the box on the floor