a/ Một nguyên tử X có tổng số các loại hạt bằng 18
b/ Một nguyên tử Y có tổng số hạt cơ bản 58 và số khối nhỏ hơn 40. Hãy xác định các nguyên tử trên. Biết số khối A = N+P
Explanation:
a) p+e+n=18
mà p=e=z => 2p +n=18
câu a có thiếu dữ kiện không?
digestive system label part A and C
Explanation:
can u attach the label parts??
what is aphids? explain in easy words
They are little soft bodied insect. They suck the plant's nutritious liquid and if they are in large number, they can kill the plants.
Label the parts of the microscope shown in the picture below using the following terms: coarse adjustment knob, eyepiece (or ocular lens), fine adjustment knob, light condenser and iris diaphragm, objective lenses, stage
Answer:
A is the eyepiece (or ocular lens), B is the objective lenses, C is the iris diaphragm, D part is refers to light condenser, E is the location of fine adjustment knob and F is the location of coarse adjustment knob.
Explanation:
A is the eyepiece (or ocular lens), B is the objective lenses, C is the iris diaphragm, D part is refers to light condenser, E is the location of fine adjustment knob and F is the location of coarse adjustment knob. All these parts are the important parts of microscope which has a specific function in the microscope. Without one of these parts, we can not see the microbes in the microscope.
Choose the appropriate term for each labeled part of the image. Label A Label B Label C Label D
Answer:
Label A- ocean trench
Label B- ridge
Label C- ridge push
Label D- Convection Current
Explanation:
got it correct on edge. give thanks please. <3
Explanation:
Ocean Trench
Ridge
Ridge Push
Convection Current
What are the four
characteristics that identify something as living?
Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
by which process does air move into the lungs?
Answer:
When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward. This makes the chest cavity bigger and pulls air through the nose or mouth into the lungs.
pls mark me the brainliest
Answer:
respiratory system
Explanation:
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
Hope this helps
[tex]what \: is \: chyme \: \: \: \: {?}[/tex]
Small intestine in the form of a thick paste called chyme. When the inner walls of the intestine are thrown into millions of processes called villi. The muscle layers of the small intestine are thinner than those of the stomach.
Hope This Helps You ❤️❥SCIENCE SUBJECT
1. Elma Muros Posadas was one of the country's best Elma Muros Posadas was one of the country best long jumpers. Suppose she makes a 30° angle with the ground before leaping. If her launch speed is 11m/s, compute the time of flight, the range and the maximum height reached.
Given:__________
Required:_______
Solution:
Final Answer:_______
( Nonsense will be reported! )
9514 1404 393
Answer:
time: 1.122 secondsrange: 10.693 mmaximum height: 1.543 mExplanation:
Given:
runner is launched at 30° angle to horizontal at 11 m/s
acceleration due to gravity is g = -9.8 m/s²
Find:
runner's hang time
runner's distance to the landing point
runner's maximum height
Solution:
The (horizontal, vertical) speed components will be ...
(11 m/s)(cos(30°), sin(30°)) = (5.5√3 m/s, 5.5 m/s)
The time of flight can be found from the height formula:
h(t) = 1/2gt² +vt . . . . . . where v is the vertical speed at launch
The time we're concerned with is the time when h(t)=0 and t>0.
0 = -4.9t^2 +5.5√3t = t(-4.9t +5.5√3)
The second factor is zero when ...
t = (5.5√3)/4.9 ≈ 1.122 . . . seconds hang time
__
The distance to the landing point will be the product of horizontal speed and hang time:
d = (5.5 m/s)(5.5√3/4.9 s) ≈ 10.693 m . . . . distance to landing
__
The maximum height can be found from the formula (based on conversion of kinetic energy to potential energy) ...
h = v²/|2g| = (5.5 m/s)²/(2(9.8 m/s²)) ≈ 1.543 m . . . . maximum height
HELP ME HELPP PLZZZ!!!!!
what does the muscular system do for the stomach
Answer:
it helps digest the food and push the food down the gut track
Explanation:
i) Describe the function of stomata.
Answer:
Stomata have two main functions, namely they allow for gas exchange acting as an entryway for carbon dioxide (CO2) and releasing the Oxygen (O2) that we breath. The other main function is regulating water movement through transpiration.
Explanation:
the main fiction of stomata is to open and close the pores in the leaves for an exchange of gases.
it allows the plants to take in carbondioxide and gives out oxygen for photosynthesis.
Which process involves glucose reacting with oxygen to produce energy, carbon dioxide, and water?
Answer:
Respiration...................
"A passive smoker will experience the similar effect as an active smoker" Do you agree with the opinion? Justify.
100 points!!!!!!
According to the National
Institute of Health, ventricular tachycardia is a fast, regular beating of the ventricles that may last for only a few seconds or for much longer. A few beats of ventricular tachycardia often doesn't cause
problems. However, episodes that last for more than a few seconds can be dangerous. Ventricular tachycardia can turn into other, more serious arrhythmias, such as ventricular fibrillation.
Based on the passage above, how will prolonged ventricular tachycardia affect blood pressure?
O It will increase blood pressure because the ventricles are contracting with more force.
O It will increase blood pressure because the ventricles are filling with more blood between beats.
O It will decrease blood pressure because there is a longer rest period beats of the ventricles.
O It will decrease blood pressure because the ventricles are filling with less blood between beats.
Answer:
It will decrease blood pressure because the ventricles are filling with less blood between beats.
Explanation:
In ventricular tachycardia, the heart beats faster than normal, usually 100 or ... The chaotic heartbeats prevent the heart chambers from properly filling with blood. As a result, your heart may not be able to pump enough blood to your body
Answer:
It will decrease blood pressure because there is a longer rest period beats of the ventricles.
Explanation:
You can read more about Ventricular Tachycardia here: https://www.pennmedicine.org/for-patients-and-visitors/patient-information/conditions-treated-a-to-z/ventricular-tachycardia
Ponies which are mostly found in Europe have an average height of 86-97 cm. If the ponies breed among themselves, is it possible that the offspring will have the normal height of a horse which is about 160 cm? *
a. Yes
b. No
Answer:
A
Explanation:
Since mutations do occur it is likely that a mutation of height will occur
This is the question I need help with.
Answer:
b is most likely to be the answer
Explanation:
Help will mark brainliest #6,7,8
Answer:
search it up, but 6 is b
Explanation:
right answer got it right on edg 2021
Answer:
The answers is corresponding
Explanation:
Nice have a nice day
Answer:
I agree
Explanation:
yes
Why is long loose hair dangerous in a lab? Select all that apply.
It can catch fire over an open flame.
It can get caught in the lab equipment.
Long loose hair is not dangerous in a lab.
It can fall into a beaker full of chemicals.
Answer:
it can get caught in equipment, catch fire or fall into chemicals
Hope This Helps :D
Please help I’ll give brainliest
how do you describe the shape of each sample of matter? do the ice cubes have a definite shape? how about the water? how about the vapor?
Answer:
Both no
Explanation:
be because it is liquid, they don't have fix shape
Define the word ⇒ matter
Answer:
matter is what makes up everything, every type of organism, every object, etc.
Explanation:
Answer: 1.
physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
"the structure and properties of matter"
2.
an affair or situation under consideration; a topic.
Explanation:
Hope it helps
A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?
pyramid
food chain grid
food web
trophic level
Answer:
Food web
Explanation:
food web:
a system of interlocking and interdependent food chains.
Answer:
food web
Explanation:
food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains.
Which of the following items requires an internal
cooking temperature of 165 °F?
a. Pork chops
b. Injected meats
c. Raw Eggs
d. poultry
Answer:
D. poultry
Explanation:
Define the word Codon
Thank you!
Explanation:
a sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.
Answer:
Condon is a city in, and the seat of, Gilliam County, in the U.S. state of Oregon. The population was 682 at the 2010 census. The city, with an historic main street along Oregon Route 19, is a farming and ranching community.
A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis. DNA and RNA molecules are written in a language of four nucleotides; meanwhile, the language of proteins includes 20 amino acids.
The second one is most likely to be correct
Hope this helps :> <3
Which scientific claim can be made? Songbirds numbers will increase due to the effects of climate change increasing global Temperatures
The scientific statement that can be made is that the imbalance in the food chain happened because of this fact, because the songbirds will harm other living beings by their growth.
What is an imbalance in the food chain?Ecological imbalance occurs when some element (animal or plant) of an ecosystem is reduced in
quantityadded or subtracted.This change can give rise to chain reactions and directly affect the functioning of the ecosystem.
With this information, we can conclude that the scientific statement that can be made is that the imbalance in the food chain happened because of this fact, because the songbirds will harm other living beings by their growth.
Learn more about Ecological imbalance in brainly.com/question/21512836
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Ella repeated Mendel's second set of experiments. She crossed two non-pure
tall pea plants and produced eight offspring. All of the offspring were tall. She
concluded that her experiment must be flawed.
What is wrong with Ella's reasoning?
A. Ella did not perform enough trials to evaluate the pattern in the
results.
O B. Ella did her experiment correctly. Mendel's experiments must have
been flawed.
C. Ella should have crossed two pure-breeding tall plants.
O
D. Ella did not accurately measure the height of the plants.
Answer:
A
Explanation:
Ella did not preform enough trials to evaluate the pattern in the results.
TIME REMAINING
59:00
What is natural selection?
O a process that selects variations that help with survival and that spreads the variations to more offspring
a process through which nature selects an individual within a population for extinction
a process that causes all populations to gradually increase in size
O a process that causes random variations to appear in the offspring of every generation
Answer:
a
a process that selects variations to help with survi al and that spreads the variation to more offspring
Explanation:
the weak don't survive the strong thrive
This Roman snail, this cuttlefish, and this mussel have similarities and differences in their body structures. What does the information about these structures tell you about the ancestors of these species
Complete question:
This Roman snail, this cuttlefish, and this mussel have similarities and
differences in their body structures. What does the information about these
structures tell you about the ancestors of these species?
a) None share an ancestor population because different species cannot share an ancestor population. It is a coincidence that these species have some of the same body structures.
b) The Roman snail and the cuttlefish share an ancestor population, but they must not share an ancestor with mussels because mussels have no radula.
c) All three species share an ancestor population, but Roman snails and
cuttlefish share a more recent ancestor population. This is why they share
the radula structure.
d) We cannot make observations of ancestor populations from the past. It is
impossible to explain ancestors with only the information about the body
structures of different species.
Answer:
The correct answer is option C. All three species share an ancestor population, but Roman snails and cuttlefish share a more recent ancestor population. This is why they share the radula structure.
Explanation:
The three species belong to the mollusk phylum, and to the placophore group.
Each of them belongs to a different class.
The Roman snail belongs to the Gasteropod class, The cuttlefish belongs to the Cephalopod class, The mussel belongs to the Bivalve class.The tree classes share a common ancestor from which all the placophores evolved. Among them, we can mention the monoplacophore, gasteropod, cephalopod, bivalve, and scaphopods. Three branches diverged from this common ancestor. The first one originated the monoplacophore. The second one originated the common ancestor of gastropods and cephalopods. And the third one originated the common ancestor of bivalves and scaphopods. The tree-mentioned species inherited the mantle and the radula from their foreign common ancestor. But later in time, individuals that originated bivalves lost the radulla. This is why the three species have a mantle, but only gastropods and cephalopods have a radula. When each of these classes evolved, they developed their own traits,
Gastropods → muscular foot used for moving Cephalopods → pallial cavity for swimmingBivalves → byssal threads to attach to the rocksYou will find an image in the attached files that will help you understand this explanation.
