Answer:
They become smaller and more rounded
Explanation:
What do modern scientist use in classifying organisms that Linnaeus did not use?
Answer:
The taxonomic units in modern taxonomy are domain, kingdom, phylum (division is sometimes used in botany in place of phylum), class, order, family, genus, and species.
The evidence used by scientists use to classify organisms are essentially form and evolutionary relationships.
Evolutionary relationships.
The diversity of living organisms on earth is very overwhelming. Human beings have come up with ways of organizing, or classifying, biological diversity throughout human history.
Organisms can be classified according to any number of criteria, including overall similarities, colors or ecological factors. It was agreed that the most useful way for scientists to organize biological diversity is to group organisms according to shared evolutionary history or characteristics. Grouping did not only result in an organized classification but it also contains and conveys information about our understanding of the evolutionary history of those groups.
Although our understanding of evolutionary relationships among organisms has greatly improved but it is not complete. Relationships among organisms and groups of organisms continues to be revised as new data becomes available comparing them to the past. Almost all taxonomies or systems of nomenclature based on evolutionary relationships among organisms are being revised.
The use of binomial nomenclature system was proposed by Carl Linnaeus. In this system, the phylogenetic relationship, cladistic analysis, and systematic approaches are used.
Explanation: Hello, i hope this helps. Your so very welcome!
Place the following items in the correct order to show how a voice can be recorded and saved using an analog device.
Answer:
A person sings into a microphone.
Sound is converted to an electrical signal
The electric signal creates a magnetic code.
A magnetic code is transferred to a medium such as a tape or ...
What would make oppositely charged objects attract each other more?
increasing the positive charge of the positively charged object and increasing the negative charge of the
negatively charged object
decreasing the positive charge of the positively charged object and decreasing the negative charge of the
negatively charged object
increasing the distance between the positively charged object and the negatively charged object
maintaining the distance between the positively charged object and the negatively charged object
Answer:
a: increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
Explanation:
The oppositely charged objects attract each other more is option a. It increased the positive charge and the negative charge.
The Attraction of the oppositely charged:At the time when the oppositely charged objects are attracted to each other more so here the positive charge should be increased with respect to the positive charge object and the negative charge is increased with respect to the negative charge object
Hence, the first option is correct.
Learn more about an object here: brainly.com/question/19587294
Newton's third law of motion States that for every action there is an equal and opposite reaction. Which of these illustrates newtons third law?
Answer:
This question lacks options, the options are:
A: Two students of similar mass run into each other. They bounce off each other when they collide.
B: Two students of similar mass run side by side into a wall and punch holes of equal size before emerging on the other side.
C: Two students of similar mass run in opposite directions, but one accelerates at twice the rate of the other.
D: Two students of similar mass run at the same speed in opposite directions on a track. They will collide with 400 Newtons of force in 400 meters.
The answer is A.
Explanation:
Isaac Newton proposed three laws, which he called laws of motion. The third of these laws states that for every action, there is an equal and opposite reaction. This means that if an object A collides with object B, object B will exert a force of similar magnitude but in opposite direction on object A.
From the examples in the option, when two students of similar mass run into each other. They bounce off each other when they collide. This means that student 1 and student 2 will go in opposite directions after collision with one another. This portrays Newton's third law of motion.
can somebody help me with this question please
Answer:
concave lens
Explanation:
it's concave lens because it diverges the ray/beam of light.
Concave lens
The concave lens always repels the ray of light to go away .There are 2 types of lens
ConvexConcaveWhich of these hydrocarbons is a ketone? Check all that apply.
Answer:
The answer is below
Explanation:
Ketone is a class of organic compounds which has a carbonyl group such that the carbon atom is covalently bonded to an oxygen atom, while the remaining two bonds are to other carbon atoms or hydrocarbon radicals.
Ketones are highly reactive hydrocarbons, they can be gotten from the oxidization of secondary alcohols. Ketone are used for medicinal applications.
The third option is the ketone
it’s the the last 2 choices
Help me please!!
Two gas samples are stored in a container with a solid barrier separating the gases. Gas A is at 125 °C, and Gas B is at 80 °C.
What will occur when the solid barrier is removed?
The molecules of Gas A will collide and mix with Gas B molecules. Gas A and Gas B molecules will all speed up. The final temperature will be greater than 125 °C.
The molecules of Gas A will collide and mix with Gas B molecules. Gas A molecules will slow down, and Gas B molecules will speed up. The final temperature will be between 80 °C and 125 °C.
The molecules of Gas A will collide but not mix with Gas B molecules. There will be no changes in the temperature of either side of the container.
The molecules of Gas A will collide and mix with Gas B molecules. Gas A molecules will speed up, and Gas B molecules will slow down. The final temperature will be less than 80 °C.
What’s a element that is a metal, contains 1 valance electron, 3 energy levels?
Explanation:
Sodium is the element having one valance electron and 3 energy level and is a metal.Its atomic number is 11 .So in first energy level ,there is 2 electrons ,in second energy level,there is 8 electrons and in third energy level,there is one electron.The one electron in the third energy level is called valance electron and it is a metal in the sence it has only one valance electron and it can easily loose it and gain +ve charge.
How can you use the periodic table to determine the charge of an ion?
Answer:
memorise them
Explanation:
1, 2, skip metals, 3, 0, -3, -2, -1
2. Which type of energy is centered around breaking the bonds between elements in a compound?
Nuclear
Chemical
Electrical
Elastic
True or False. Weather patterns in the US moves from the West to East across the
country.
Answer:
North America) than in the tropics. Since low pressure systems spin in a counterclockwise fashion, winds move from the west to the east, propelling weather systems to the east. Another MAJOR factor that drives weather systems in the U.S. is that the Jet Steam moves from West to East across North America.
Explanation:
I hope this helped
(Sorry If it didn't)
Which planet rotates the slowest on its axis?
Answer:
Venus
What is the Slowest Planet. Venus, which is floating higher each evening in twilight, low in the west, is the slowest-spinning body in the known universe. If you walked along a bike path that circles its equator, you'd only need to go four miles an hour to keep night from ever falling on Venus.
Answer:
Venus
Explanation:
It rotates once every 243 days, by far the slowest rotation period of any of the major planets.
hope its correct :)
Which elements are in the compound hydrochloric acid?
A. Helium and carbon
B. Hydrogen and carbon
C. Helium and chlorine
D. Hydrogen and chlorine
Answer:
D. Hydrogen and chlorine
Explanation:
Answer:
d
Explanation:
hydrogen and chlorine
is the compound of hydrochloric acid
Which substance is an ionic solid? A. LiCl B. HCl C. Ne D. Fe
Answer:
A. LiCl
Explanation:
Lithium chloride is an ionic compound but it also has some covalent character due to the very small size of lithium metal.
Ionic solids are formed between a metal and a nonmetal. Among the given options, option A, LiCl is an example of ionic solid formed from lithium metal and chlorine.
What is ionic solid?Ionic compounds are formed between metals and non-metals. Metals are electron rich and easily loss electrons. Non metals are mostly electron deficient and gain electron from metals.
Lithium is an alkali metal with one valance electron. Cl is 17th element with 7 valence electrons. Cl needs one more electron to achieve octet. Li donates its valence electron to Cl, and gains a positive charge and Cl gains a negative charge by accepting the electron.
The opposite charges between the atoms gets attracted electrostatically forming ionic bond between them and the compound LiCl results. HCl is a covalent compound. Ne and Fe are pure metals and not ionic solids. Hence, option A ic correct.
Find more on ionic solids:
https://brainly.com/question/29629371
#SPJ2
7. Convert 3.57 x 106 into standard (long) form.
a) 0.0000357
b) 0.000357
c) 3570000
d) 0.00000357
e) 357000
!!!!! Need this now !!!
Answer:
c) 3570000
Explanation:
The standard form is a way to simplify too long or too short numbers. Standard form uses powers of ten to contract numbers.
x × 10^n
Where;
x = decimal number between 1.0 - 10.0
n = power of 10
According to this question, a number already in standard form is given as 3.57 x 10^6.
To convert to its long form, we count forward the power of ten beginning from where the decimal is. In this case, we're counting 6 times Note that once the decimal is after 7, we start placing zero (0) instead. Based on this, we have;
3.57 x 10^6
1st count = 35.7
2nd count = 357
3rd count = 3570
4th count = 35700
5th count = 357000
6th count = 3570000
Hence, the long form of the number 3.57 x 10^6 is 3570000.
A tactic used by investigators to identify deceit is to ask the suspect to recount their alibi backwards. True False
Answer:
It is True.
Explanation:
Investigators use this tactic to see if the suspect is recalling by memory and if they will change their story after being asked to recall backwards.
Answer:
True
Explanation:
Correct on the test
Ionic bond is formed between atoms of ____and ______
A. metals, non-metals
B. metals, metals
C. non-metals, non-metals
Answer:
A. metals and non-metals
Answer:
Metals-Non-Metals
Explanation:
You see, that is the answer because when the asnwer.
[tex]\geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq[/tex]
I will give brainliest to the correct answer. Please answer soon!! Thank you!
If I contain 0.190 moles of gas in a container with a volume of 6.0 liters and at a temperature of 354.0 K, what is the pressure inside the container?
Answer:
0.92 atm
Explanation:
Assuming this is the ideal gas law, PV = nRT. Plug in the values for each.
P = unknown
V = 6.0 L
n = 0.190 moles
R = 0.0821 (there are other rates of constant, such as 8.31, 62.4, but match it up to the correct units! 8.31 will answer in units of kPa and 62.4 will answer in units of mmHg, and lastly 0.0821 answers in atm.)
T = 354.0 K
Set up your equation.
P(6) = 0.190(0.0821)(354)
6p = 5.522046
Divide.
p = 0.920341...
Answer: 0.92 atm
Hope this is right!
11.
The picture shows sand used to make a model of a galaxy. In the model, each grain of
sand best represents
A.
B.
a comet
a black hole
an asteroid
C.
D.
a star
Answer:
D
Explanation:
I took that.
What is the frequency of a wave that has a wavelength of 0.50 m and a speed of 380 m/s?
Answer: f = 760 Hz
Explanation: speed = frequency · wavelength v = fλ.
frequency f = v/ λ = 380 m/s / 0.50 m = 760 Hz
Top 3 ideas based upon affordability. Include a description of the general costs of this plan and why it is less expensive than others. Plssss helppppppp D:
Answer:
While the Affordable Care Act (ACA) has made health insurance more affordable for ... for the majority of Americans who have coverage through employer-based plans. ... Why Average Americans Cannot Afford Health Care ... Almost half of our nation's income goes to the top 10 percent of the population.
Explanation:
Here are three ideas based on affordability:
Public transportation
Meal planning and cooking at home
Renting textbooks
What is the defination of affordability?Public transportation: Using public transportation such as buses and trains can be a more affordable option compared to owning and maintaining a personal vehicle.
Meal planning and cooking at home: Eating out at restaurants or buying pre-made meals can be expensive, especially if done frequently. Planning meals ahead of time and cooking at home can be a more affordable option.
Renting textbooks: Instead of purchasing new textbooks for each class, consider renting textbooks for the duration of the semester. This can be a more affordable option than buying new textbooks, especially if the textbooks are only needed for a short period.
These ideas are generally less expensive because they involve reducing unnecessary expenses and finding more affordable alternatives. By using public transportation instead of owning a car, you can save on the cost of purchasing and maintaining a vehicle.
Similarly, by cooking at home and renting textbooks, you can avoid the cost of eating out at restaurants and buying new textbooks.
Learn more about affordability at:
https://brainly.com/question/28273462
#SPJ3
el cuerpo humano puede resistir contaminantes más toxicos como el mercurio?
porque y como?
Answer:
no por qué el cuerpo es muy débil
Explanation:
cómo los murciélagos muchos son muy agresivos y eyos resisten
ASAP - Thank you
Atoms with greatly different electronegativity values are expected to form ______.
a. ionic bonds
b. triple bonds
c. covalent bonds
d. no bonds
e. none of these choices
Answer:
Covalent bonds
Explanation:
Atoms with greatly differing electronegativity values are expected to form..... ... When two atoms each need additional electrons to fill their valence shells, but neither is electronegative enough to steal electrons from the other, they can form another kind of chemical bond called a covalent bond.
How many protons are in an atom of phosphorus
Answer:
15
Explanation:
Answer:
there are 15 protons in an atom of Phosphorus.
Which element, when combined with Fluorine, would form an COVALENT compound?
A.Lithium
B.Iron
C.Phosphorus
D.Sodium
Answer:
Explanation:
A covalent compound is a compound formed by covalent bonds. A covalent bond is formed between two atoms where electrons are shared between the two atoms. This forms a molecule.
What determines whether two elements will form a covalent compound or not is the number of valence electrons present in each of the elements.
Fluorine will form a covalent compound with phosphorous because fluorine has 5 electrons in its outermost shell. It needs 3 more to become stable.
Phosphorous also has 5 valence electrons. It needs 3 more to become stable.
What happens is that 3 atoms of FLuorine combine with one atom of Phosphorus, sharing the valence electrons between themselves. This leads to the formation of the PF3 molecule.
Both the Phosphorous and the Fluorine are now stable.
Answer: Phosphorus
Explanation: since both are non-metals they would both create a covalent bond.
Potential energy
Reaction progress
A. The products have higher potential energy, and energy is
absorbed.
O B. The reactants have higher potential energy, and energy is
absorbed.
C. The products have higher potential energy, and energy is released.
D. The reactants have higher potential energy, and energy is released.
Answer:
I believe it's D.
Explanation:
Meera added blue copper sulphate crystals to some water in a beaker.
The copper sulphate dissolved in the water.
1 give one way meera could see that the copper sulphate had dissolved in the
Answer:
The solid crystals disappeared
Explanation:
When a soluble solid solute is added to water, the solid solute disappears after a little while. The disappearance of this solute indicates that the solute has been dissolved in water.
In this case, blue copper sulphate crystals are added to water, the blue crystals disappear leaving only a blue solution. The disappearance of these blue copper sulphate crystals indicates that the substance has dissolved in water.
what is the name of the shape that is a quadrilateral where all 4 sides are the same length
HELP QUICK
Answer:
Square
Explanation:
A square is a quadrilateral with r sides the same length
How are chemical and mechanical weathering the same?
Answer:
They break down materials into smaller pieces
Explanation:
Although using different methods
Ammonia gas (NH3) combines with oxygen gas (O2) to form diatomic nitrogen gas and water vapor. If 4.0 grams of ammonia react, how many liters of nitrogen gas are produced? The gas is collected at 32.00°C and a pressure of 2.6 atmospheres.
Answer:
1.13 L
Explanation:
First, we have to write the chemical equation for the reaction between ammonia gas (NH₃) and oxygen gas (O₂) to give nitrogen gas (N₂) and water (H₂O), as follows:
NH₃(g) + O₂(g) → N₂(g) + H₂O(g)
Then, we have to balance the equation (we write first the coefficient 2 for NH₃ to balance N atoms, then a coefficient of 3 for H₂O to balance H atoms, and finally 1/3 to balance the O atoms):
2 NH₃(g) + 3/2 O₂(g) → N₂(g) + 3 H₂O(g)
In the balanced equation, we can see that 1 mol of N₂ is produced from 2 moles of NH₃. We convert the moles of NH₃ to grams by using its molecular weight (MW):
MW(NH₃) = 14 g/mol N x 1 + (1 g/mol H x 3) = 17 g/mol
grams of NH₃ = 17 g/mol x 2 = 34 g
Thus, we have the stoichiometric ratio:
1 mol of N₂/2 mol NH₃ = 1 mol of N₂/34 g NH₃
To calculate how many moles of N₂ are produced from 4.0 of NH₃, we multiply the mass by the conversion factor:
4.0 g NH₃ x 1 mol of N₂/34 g NH₃ = 0.1176 moles N₂
Finally, we calculate the liters of N₂ gas by using the ideal gas equation:
PV = nRT ⇒ V = nRT/P
We introduce the data in the equation:
T = 32.00°C + 273 = 305 K
P = 2.6 atm
R = 0.082 L.atm/K.mol (is the gas constant)
n= 0.1176 moles
⇒ V = nRT/P = (0.1176 mol x 0.082 L.atm/K.mol x 305 K)/(2.6 atm)
= 1.13 L