8. The atomic number of an element is
a) equal to the number of isotopes of that element
b) is equal to the number of protons in the nucleus of an atom of that element
c) is equal to the number of neutrons in the nucleus of an atom of that element
d) is equal to the number of particles that can be found in the nucleus of an atom of that
Answers
The correct answer is B) is equal to the number of protons in the nucleus of an atom of that element.
Explanation:
The atomic number, which is represented by the letter Z, refers to the number positively charged particles known as protons. This characteristic is key in chemistry and related areas because based on these features elements have different properties and are named. For example, an atom of nitrogen element always contains 7 protons, while one of the gold contains 79 protons. Moreover, this property is not related to the number of neutrons because atoms with the same atomic number might differ in the number of neutrons, which leads to isotopes of the same element.
Related Questions
Which best describes the process of evaporation/transpiration in the
water cycle?
O A. Water from the ocean enters the atmosphere as water vapor.
O B. Water on the surface of Earth enters the groundwater supply.
C. Water vapor in the atmosphere returns to the surface of Earth as
liquid water.
O D. Water on the surface of Earth and water lost by plants enters the
atmosphere as water vapor.
Answers
Answer:
A
Explanation:
Answer:
The answer is D
Explanation:
Water on the surface of Earth and water lost by plants enters the atmosphere as water vapor
The person above me is wrong I tried it and it was wrong and I tried D and I got it correct
(FW.02]The diagram below shows a portion of the water cyle.
Y
Spring
Aquifer
What does Y most likely represent?
O precipitation
Orecharge
Oatmosphere
Ogroundwater
Answers
Answer:
I would have to say recharge of the aquifer by using ground water after some precipitation.
Explanation:
Melting snow or rain increases ground water that percolates down to replenish the aquifer.
Elevation changes causes the aquifer to flow up in low spots/springs on the surface. And the cycle repeats through evaporation and plant respiration.
how do scientists classify species?
Answers
Answer
d because that's what they causally do
Answer:
A
Explanation:
A P E X
What two factors play a role in the type of snow flake created?
Answers
Answer:
Two factors play key roles in determining the shape of a snowflake: temperature and humidity.
Explanation:
Badgers are a type of mammal that eats mostly earthworms and insects. They sometimes eat small mammals, birds, and reptiles, as well as plant roots and fruit.
What kind of teeth would you expect a badger to have?
some flat and some round
all flat
some sharp and some flat
all sharp
Answers
Answer:
I wouldn't think badgers teeth are all that sharp so my answer is some sharp and some flat.
Answer:
its C
Explanation:
u can look up a picture of their teeth
Investigation 2b the atmosphere in the vertical applications
Answers
Answer:
What is the Question?
Explanation:
Use the above facts and rules to answer the following questions. Also provide the Prolog query that would resolve the answer. What swims? Do lizards have scales? What eats fish? What do things with scales eat? Add the following rules to the program: Reptiles are things with scales that slither or crawl. Fish are things with scales that swim and eat fish. Insects fly and are eaten by reptiles and bugs.
Answers
Answer:
Fish can swim.
Explanation:
Fish are cold blooded organisms that has the ability to live and swims in the water or aquatic ecosystem. Yes, lizards have scales on their bodies because lizards belongs to the reptile family. Organism such as octopuses, squid, sharks, grizzly bears, snakes, turtles, and sea gulls feed on fish. Reptiles are the organisms whose body covers with scales.
Which group of elements most readily combines with Group 17 elements?
a. Group 1
b. Group 17
c. Group 18
d. none, as Group 17 is the most stable group
Answers
Answer:
a. Group 1
Explanation:
Group 17 elements react most with group 1 elements because group 1 elements are metals.
HURRY I WILL GIVE BRAINLIEST AND VERIFIED ANSWER & 100 PTS Earthworms are a species of worms that lives in moist soil along with other organisms like tiny insects and bacteria. Earthworms obtain water and nutrients by eating dead plant material found in the soil. Earthworms also release waste materials that help enrich the soil. Based on this information, which sentence is correct? The earthworms are an environment. The earthworms are a community. Soil is the earthworm’s habitat. Soil is the earthworm’s niche.
Answers
Answer:
it has to be the last and 2nd last one of them
Explanation:
Sorry if this is wrong
After being hunted to near extinction, wolves were reintroduced to Yellowstone National
Park in 1995. After two years, the population of wolves increased rapidly until 2009.
After 2009, the population decreased slightly and has remained at an average of 93
wolves. Which type of growth curve describes the Yellowstone wolves?
A. population density curve
B. exponential growth curve
C. bell curve
D. logistic growth curve
Answers
Answer: B: exponential growth curve
Explanation: An exponential growth curve is J-shaped. Exponential growth is more common in R-selected species, which have a short life span and a high rate of reproduction. Yellowstone National Park has 124 wolves living in it.
Plate tectonics affect the rock cycle. Which plate movement can result in the formation of sedimentary rocks?
Answers
Answer:
Divergent plate boundaries occur where hot magma rises to the surface, pushing the plates apart. The mid-ocean ridges form at divergent plate boundaries.
Explanation:
Answer:
Divergent rocks
Explanation:
Explain why emerging efforts are focused on reducing health risks from exposure to chemicals rather than completely
eliminating those risks.
Answers
Answer:
Working with all chemicals carries some level of health risk, and modern society is dependent upon thousands of chemicals to maintain our standard of living. Therefore it is not reasonable to eliminate all chemical related health risks because that would require we stop using chemicals like cleaning supplies, gasoline, and fertilizers. The more practical approach is to minimize and manage the health risks associated with chemical exposure.
Explanation:
answer on edge
Answer:
This is the example answer they give you
Explanation:
Working with all chemicals carries some level of health risk, and modern society is dependent upon thousands of chemicals to maintain our standard of living. Therefore it is not reasonable to eliminate all chemical related health risks because that would require we stop using chemicals like cleaning supplies, gasoline, and fertilizers. The more practical approach is to minimize and manage the health risks associated with chemical exposure.
how are logistic and exponential growth similar?
Answers
Answer:
because both are same words
Explanation:
Answer:
Both growth models begin with a population that is growing at a constant rate.
Logistic growth follows a period of exponential growth, as population growth slows or stops.
Exponential growth is only possible when resources are unlimited.
Logistic growth shows what happens when resources become scarce and population growth slows.
Explanation:
Approximately how many molecules of ATP are produced by substrate-level phosphorylation during the complete oxidation of a molecule of glucose (C6H12O6) in aerobic cellular respiration?
Answers
Approximately, there are four molecules of ATP are produced by substrate-level phosphorylation during the complete oxidation of a molecule of glucose (C6H12O6) in aerobic cellular respiration.
What is Cellular respiration?Cellular respiration may be defined as a type of biological process that significantly involves the breakdown of food in the cell with the liberation of energy.
In a more simple sense, it is a process of transforming glucose into a form of energy that is known as ATP which is utilized by cells in order to accomplish metabolic and cellular activities.
Two molecules of glyceraldehyde-3-phosphate are formed from one molecule of glucose. Each molecule of G-3-P is responsible for the formation of 2 ATP during the process of substrate-level-phosphorylation.
Hence, a total of four ATPs are produced via the reaction that is known as substrate-level phosphorylation.
Therefore, the number of ATPs that are produced by substrate-level phosphorylation during the complete oxidation of a molecule of glucose is four.
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AUG is generally a start codon. what is the amino acid that AUG codes for ?
Answers
You are looking at the side of a cliff with many horizontal rock layers. In the upper layers you find fossils of rodents, but in layers further below you find amphibians but no rodents. In some still-deeper layers there are neither amphibians nor rodents but there are fossils of beetles and other insects. In the deepest layers you find no insects but you do find millipedes. This fossil evidence suggests that
Answers
Answer:
millipedes were the first of these animal groups to evolve.
Explanation:
Fossils are structural remains of animals from the past. As these animals die, it takes years for the remains to be buried.
The millipedes are at the lower layer of the rock, next to insects, amphibians, and then rodents. This shows that millipedes existed and evolved before the rest of the found animal fossils.
1) State three economic importance of Amoebiasis,
Answers
Answer:
An amoeba's economic value can be found in medicine and nutrient recycling. According to Biology Reference, certain amoeba species can cause sickness and death, while others are important in maintaining healthy ecosystems because they recycle the nutrients needed by bacteria and keep the bacterium population under control.
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PLEASE HELP ME ITS FOR 17 POINTS!!!!!!!!!!!!!!!!!!!!
A forest area is being used for a new housing development. Most of the trees have been removed to make room for the
new houses. Predict the impact that this will have on the birds in the area.
The bird populations will stay the same because humans love birds.
The bird populations will decrease because humans see them as pests.
© The bird populations will increase because humans do not interfere with wild animals.
The bird populations will decrease due to competition for resources such as food and nesting sites.
Answers
Answer:
The bird populations will decrease due to competition for resources such as food and nesting sites.
Explanation:
Their food and habit is being taken away so they will have to compete. I hope this helps you! :)
Possible Brainliest? You don't have to if you don't want to!
Which wavelength of light are more stretched—red light or blue light?
Answers
Answer:
Red
Explanation:
Blue light has a shorter wavelength than red.
The __ is the relatively rigid zone above the asthenosphere that includes the crust and upper mantle.
O mantle
O core
Olithosphere
O crust
Answers
Which factor has the least impact on the potential energy or kinetic energy of an object?
A) Mass
B) Speed
C) Time
D) Height from the ground
Answers
Compact bone contains cylinders of calcified bone called ______________________. These cylinders consist of 4 to 20 Compact bone contains cylinders of calcified bone called concentric rings of bone known as:___________________.
a. osteons, canaliculi
b. lamellae, canaliculi
c. osteons, lamellae
d. Haversian canals, lamellae
e. none of the above
Answers
Answer:
The correct answer is c. osteons, lamellae
Explanation:
An osteon is the basic functional unit of the cortical bone of a tubular bone. An osteon consists of a central canal that contains two vessels of Havers. Concentric bony laminae are arranged around this canal. These lamellae consist of bone cells and the surrounding base substance. Between the Havers canals there are Volkmann canals that connect the Havers canals. The construction of the cortical bone in these functional units has not yet been fully clarified. In general, it is assumed that these structures serve primarily to deliver tissue and signal transduction. This structure is also supposed to serve the stability and adaptability of the bone.
25-1
Seasonal
Forest
Biome
Productivity
Kcal/m2/year
i Thom Scrub
Grasse
Desert
TROPICAL
20-
Scrubber Semi Dosen
Tundra
600
IS-
TEMPERATE
Grassland
2000
10-
Mean Annual Temperature (°C)
Pesert
200
0-
Seasonal
Forest
6000
5-11
Tundra
Rainforest
9000
10-
Scrubland
1000
500 1000 1500 2000 2500 3000 3500 4000
Mean Annual Precipitation (mm)
Based on the data given in the graph and table, which environmental factor contributes
to greater biodiversity?
O Plant biomass per meter
0 Available water
Average latitude
0 Average temperature
Answers
Answer:
18000
Explanation:
you add all the mean Annual precipitation
2. Think about an animal like a rhinoceros, a deer, or an antelope. What parts of their body other than their hair must be composed of quite similar material to your nails and hair
Answers
Answer:
horns and hooves
Explanation:
horns and hooves are made of kerotin, just like nails and hair.
Keratin is the protein that composes the external layers of the epidermis. It can be found in elements like feathers, nails, and hair. Other parts of the body that might be composed of keratin are horns and hooves.
-------------------------------------
Keratin is a fibrous protein that can be found in epithelial cells that cover internal and external surfaces.
Keratin is the main component of horns, hooves, feathers, hair, and nails.
Horns are hollow and pointed structures that emerge from the skull of the animal.
Animals get born hornless. As they grow they develop these structures. Most of them complete the development near the reproductive stage of the animal.
At sexual maturity age, competitive interaction increases, and animals use them to defend themselves and hurt the opponent. Males of some species also use them to attract females.
Hooves are very developed nails that cover the ugunaltes' fingers. These animals only use the extreme of the fingers to walk.
Like all nails, hooves grow continuously and wears out as the animal walks or runs.
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Plant cells usually can be distinguished from animal cells because only plant cells have
Answers
Answer:
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.
Explanation:
Brainliest please?
8) Outline what you would need to know to answer the following question: of all the proteins that exist on earth at this time, what fraction of them have a known structure
Answers
Answer:
To solve this question, it is necessary to consider the number of protein structures that have been empirically verified and the number of Open reading frames predicted from sequencing data
Explanation:
The most common methodologies used to determine protein 3D structure are nuclear magnetic resonance (NMR) and X-ray crystallography. Although both methods are efficient, the determination of 3D protein structures in physiological conditions is a time and cost-consuming task. Moreover, due to recent advances in bioinformatics and sequencing methodologies, the amount of protein Open Reading Frames predicted from sequencing data (especially obtained from Next Sequencing Generation studies) is many times higher. Indeed, less than 5% of sequenced proteins have an empirically validated 3D structure.
What does it mean for a model to be "to scale", or a scaled model?
Answers
Answer:
To scale means it's the same size as in real life, as in 1 foot = one foot
Scaled means it's shown either larger or smaller, as in 1 foot = 1 inch or 1 foot = 1 mile
Explanation:
PLEASE HELP MEEE. _______ and _____
are what we call the molecules
before and after a chemical reaction.
Answers
The terms we call the molecules before and after a chemical reaction are - reactants and products respectively.
Molecules before and after a chemical reactionChemical reactions are takes place when chemical bonds form between molecules and atoms of substances. There are two-part to any chemical equation: part before the chemical reaction and after the chemical reaction.
In the part before the chemical reaction starts, there are molecules of the substance is called reactants that react with one another in chemical reaction and form or break chemical bonds of molecules. Products are newly formed substances by forming bonds in a chemical reaction.
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Reactants and products are the names that we call the molecules before and after a chemical reaction respectively.
What is a Chemical reaction?A chemical reaction may be defined as a mechanism that significantly directs the chemical transformation of one set of chemical substances or molecules to another. This process of chemical transformation utilizes numerous catalysts to enhance the rate of reaction.
The amount or number of chemical substances or molecules that are present before the progression of reaction are known as reactants.
While after the successful progression or completion of a specific chemical reaction such reactants are performed into another, these substances or molecules are known as products.
Both the molecules of reactants and products possess some sorts of chemical identity in order to distinguisg from each other.
Therefore, Reactants and products are the names that we call the molecules before and after a chemical reaction respectively.
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what is the value of 6a + 3
Answers
Answer:
3 ( 2 + 1 )
Explanation:
Which process occurs within the mitochondria? lactic acid fermentation alcohol fermentation glycolysis Krebs cycle
Answers
Answer:
D) Krebs cycle
Explanation:
i just took the quiz
The process that occurs within the mitochondria is the Krebs cycle. In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle produce a chemical called NADH.
Which process occurs within mitochondria?The process is called oxidative phosphorylation and it occurs inside mitochondria.
In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle have a chemical called NADH.
NADH is then used by enzymes ingrained in the mitochondrial inner membrane to generate adenosine triphosphate (ATP).
Thus, In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle have a chemical called NADH.
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