Answer: 3
Explanation:
All elements in group 3 have 3 levels of energy.
Na (sodium) has 3 valences the inner has 2 electrons, the middle has 8 electrons and the outer has 1 electron.
This will continue across the group 3 adding one more electron to the outer valence until Ar (argon).
Remember the Octet rule of 8..?
We have that for the Question " An element has 2 valence electrons and 3 energy levels. It is located in group" it can be said that its the
Group three(3)
From the question we are told
An element has 2 valence electrons and 3 energy levels. It is located in
group
Generally
We have that the energy level of three is synonymous to elements of group three
Therefore
Sodium has has a 3 valences which continues to add electrons to its outermost shell up untill the element Ar
Hence
its the Group three(3)
For more information on this visit
https://brainly.com/question/17756498
1
Which of the following statements about cellular respiration is true?
A Animals do not carry out cellular respiration.
B Cellular respiration is the process by which some living things take energy from the sun to make food.
C Oxygen is a product of cellular respiration.
D Oxygen is a reactant of cellular respiration.
Answer:
D
Explanation:
google cell respiration reaction
The statement which is true about Cellular respiration is as follows:
Oxygen is a reactant of cellular respiration.Thus, the correct option for this question is D.
What is Cellular respiration?Cellular respiration may be defined as a process through which organisms disintegrate the molecules of glucose in order to derive energy in form of ATP in the presence of oxygen.
The complete reaction of cellular respiration is as follows:
[tex]C_6H_1_2O_6+6O_2[/tex] → [tex]6CO_2+6H_2O+ENERGY.[/tex]This important reaction is carried out in the cell organelle known as mitochondria. This is because it is known as the powerhouse of the cell by the derivation of energy in the form of ATP. Although this chemical reaction is carried out in the presence of oxygen, it is known as aerobic respiration.
Therefore, oxygen is a reactant of cellular respiration is a statement which is true about Cellular respiration. Thus, the correct option for this question is D.
To learn more about Cellular respiration, refer to the link:
https://brainly.com/question/2809259
#SPJ6
The cells in the human heart work to make this muscle beat over 100,000 times each day. The cells in your kidneys remove
waste products and extra water from the body. Which cell organelles would you expect to be present in large quantities in
each cell type?
O A. Nuclei in the heart cell and mitochondria in the kidney cell
O
B. Vacuoles in the heart cell and chloroplasts in the kidney cell
O C. Lysosomes in the heart cell and mitochondria in the kidney cell
D. Mitochondria in the heart cells and lysosomes in the kidney cell
Answer:
B
Explanation:
BRAINLYEST AND POINTS IF ANSWERED RIGHT
Describe the elements in column 1, 17 and 18? Are they very reactive or unreactive? Why?
Explanation:
1 and 17 are highly reactive bc they are almost full or not full at all. they need there last shell to be full in order to be happy, or not reactive. 18 has the noble gases which are not reactive at all bc they have a full valence shell and dont need any other electrons.
unicellular or multicellular
Answer:
unicellular: have only one cell
4. The open ocean is known as the
Intertidal zone
Benthic zone
Neritic zone
Oceanic zone
A student fills a small plastic bag with gelatin dessert and different colored beans and candies. Then the student seals the bag. One limitation of this model of a cell is that it cannot accurately show that a cell –
A has one nucleus and many organelles
B is able to change shape
C is enclosed within a flexible membrane
D can absorb nutrients.
1. Conservation biologists studying cheetah populations have determined that the lack of genetic diversity among the cheetahs is due to genetic drift. Which statement explains the most likely consequence of having a low genetic diversity on the cheetah population?
A. The gene pool remains in equilibrium and future generations of cheetah offspring are stronger and better adapted to their environments.
B. The cheetah population becomes less likely to survive an outbreak of a disease or an environmental change, increasing the chance of species extinction.
C. The chances of mutations occurring in the cheetah population are decreased, increasing the cheetah survival rate.
D. Genetic variability is maintained from older cheetah populations that have survived and endured environmental stressors.
Answer: it’s B
Explanation:
Which best explains how gravity contributes to the formation of layers in protoplanets?
Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials.
Gravity causes materials to undergo radioactive decay, which produces heat and leads to the melting, sinking, and rising of materials.
Gravity absorbs heat, which cools materials and causes them to sink and rise.
Gravity releases heat into space, which cools materials and causes them to sink and rise.
Answer:
it a Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials.
Explanation:
The best explanation of how gravity contributes to the formation of layers in protoplanets is gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials. The correct option is A.
What is gravity?A planet or other body's gravitational pull pulls items toward its core. All of the planets are kept in orbit around the sun by gravity.
The force that draws massed bodies toward one another is known as gravity. Greater gravitational forces are present in bodies with higher masses.
According to the alternatives, gravity pulls things together and causes compaction, which generates heat and causes things to melt, sink, and rise.
Therefore, the correct option is A. Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials.
To learn more about gravity, refer to the link:
https://brainly.com/question/1188026
#SPJ6
name the
scientist of Indian origin who discoverd triplet codon of 20 amino acid
Greg is raising pea
plants. A new recessive mutation has resulted in one plant with red flowers with the genotype pp. All of his other plants have purple flowers and the genotype PP. If a red pp plant is cross-
bred with a purple PP plant, what will be the phenotype of the offspring?
O 25 percent purple and 75 percent red
O 75 percent purple and 25 percent red
O 100 percent purple
O 50 percent purple and 50 percent red
Answer:
100 percent purple
Explanation:
Available data:
recessive allele, p, expresses red colordominant allele P, expresses purple colorPP and Pp are purple flowered-plantspp are red flowered-plantsCross:
Parental) PP x pp
Gametes) P P p p
Punnet square) P P
p Pp Pp
p Pp Pp
F1) 100% purple flowered-plants
4/4 = 1 Pp heterozygous individuals
marianaegarciaperedo (the person who answered above me) is right.
I just took the test for FLVS it's right.
PLEASEE HELP GUYS I WILL MARK BRAINLIEST
Answer:
I thought I just answered I think its #1
Explanation:
Brainliest?
describe the impact of limiting factors on native populations
0. Let's say you are fishing in the ocean and catch a brightly
colored redfish. Is this fish safe from predators? Explain your
answer.
Answer:no
Explanation:
why do you think enzymes are made of proteins?
Answer:
enzymes are created by ribosomes, which are also the organelles which make protein.
Explanation:
ANSWER ASAP WILL give brainiest
Answer:
Hybrid
Explanation:
Ecosystems have trouble adjusting to short-term changes.
Answer:
Umm I think so because its to fast of an event that it goes away to quickly
Explanation:
Please answer all except for the last 2 I’ll name brainliest..
PLSS HELP!!!!!
Which of the following is a subsurface event that takes place during the rock cycle?
A.) Deposition
B.) Erosion
C.) Weathering
D.) Plate tectonics
Answer:
B or C
Explanation:
Write out and explain each part of the solute potential equation
What physical attribute of Jupiter causes it to have so many satellites?
Please help ASAP!!!!!!
Answer:Not only is Jupiter the largest planet in the solar system, it is also the most massive at more than 300 times the mass of earth. Its size plays a role in the number of moons orbiting Jupiter because there is a large area of gravitational stability around it to support many moons.
Hope i helped!! :)
im in 6th grade lol
Explanation:
"Contain DNA" shows which characteristic of life?
Group of answer choices
growth and development
response to environment
organization
evolutionary adaptations
homeostasis
genetic information and reproduction
energy processing
Answer:
genetic information and reproduction
Explanation:
We all know that DNA contains genetics and when reproducing, the sperm cell is taken to the egg, in which DNA is created in the process of making a child, this is called a series of steps is called, "reproduction". Having all this knowledge leads me to understand the answer is genetic information and reproduction.
How can I conserve phosphorus in my community?
Which of the following would be regarded as compounds?
A) H2
CI
c) 02
D) CH4
Answer:
its C
Explanation:
02 would be considered compounds.
What are compounds?A chemical compound is a chemical substance consisting of several identical molecules that contain atoms of more than one chemical element and are held together by chemical bonds.
A substance made of two or more chemically combined elements. Examples of compounds are water (H2O), which is made of hydrogen and oxygen, and table salt (NaCl), which is made of sodium and chloride.
Molecular compounds are held together by covalent bonds; ionic compounds are held together by ionic bonds; compounds between metals are held together by metallic bonds; coordination complexes are held together by coordinate-covalent bonds.
Learn more about compounds:
https://brainly.com/question/13516179
#SPJ6
Which of these questions might a scientist ask about the phenomenon you just saw in the video? (Select all that apply.) A. If you shake sparkling water and then wait a while before you open it, will it still explode? B. Does this happen with sparkling water kept at different temperatures? C. Does this happen every time you open a bottle of sparkling water? D. Which ingredient in sparkling water can lead to this kind of event? E. What pushes the sparkling water out of the bottle when you open it?
Answer:
The answer is B
I hope this helps
A scientist might ask all of the questions related to the sparking water, such as the events that will happen when the temperature changes, the chemicals that are present in the water that push it to open, etc., so all the options A, B, C, D, and E are correct.
What is the significance of the scientist?The scientist's main role is to explain his or her research to society so that people understand why the scientist is doing the research. Without proper communication, the scientist's hard work goes unnoticed and here in the case of sparkling water, there are many questions that can be asked, such as the chemical nature of the water, the effect of temperature on water, etc.
Hence, a scientist might ask all of the questions related to the sparking water, such as the events that will happen when the temperature changes, the chemicals that are present in the water that push it to open, etc., so all the options A, B, C, D, and E are correct.
Learn more about the scientist here.
https://brainly.com/question/10889054
#SPJ2
HURRRRRRY FOR BIOLGGGGGYYYY TESTTTTTTT
How many ATP are produced by the Kreb’s Cycle?
(Remember, the cycle above is for ONE pyruvate. How many pyruvates are made at the end of glycolysis?)
A.) 1
B.) 2
c.) 4
d.) 32
Answer:
It is B!
Explanation:
how can the amount of precipitation that falls be different all around the world
some places have areal climates resulting in less water conduction.
The outer boundary of the nucleus is the
Answer:
The nuclear envelope
Explanation:
I'm very good in science or search it up.
Describe some ways in which people use energy to cause a change in their environment to better meet their needs.
Answer:
Vitamin d gives off energy which is from the sun
Explanation:
Which is one source of the sediments that form sedimentary rocks?
chunks of coal
particles in new rocks
liquid magma
materials dissolved in solutions
Answer:
D - materials dissolved in solutions
Explanation:
EDGE 2021
Most sedimentary rocks are formed in a process that involves water. It is one of the primary factors in the mineral formation of chemical sedimentary rock. Thus, option D is correct.
What role of dissolved materials in the sedimentary rocks?Mineral crusts are formed on the sedimentary grains as a result of dissolved minerals in groundwater precipitating (crystallizing) from water in the pore spaces and eventually cementing the sediments to create a rock.
Chemical sedimentary rocks are created when minerals precipitate from water. When dissolved substances leave water, it precipitates. Take a glass of water and add some salt (halite), for instance.
Additionally, it acts as an erosive and weathering agent, generating the grains that eventually form detrital sedimentary rock.
Therefore, materials dissolved in solutions is one source of the sediments that form sedimentary rocks.
Learn more about sedimentary rocks here:
https://brainly.com/question/10709497
#SPJ6
which statement is true about the cell membrane
Answer:
It is selective about which substances enter or leave the cell.
Explanation: