He is ....
A. Element
B. Composite
C. Homogeneous mixtures
D. Heterogeneous mixtures
Answers
helium is an element..............
Answer:
A. Element
Explanation:
He is a symbol of an element called helium. Helium is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas (gas whose atoms are not bound to each other). It's the first in the noble gas group in the periodic table. As we can see in the attached image, its atomic number is 2.
Helium is known for causing people to have a high-pitched voice after being inhaled. Because it is lighter than air, when you inhale it and try to talk, the sound waves travel faster through the lower-density gas, resulting in a high-pitched voice.
Related Questions
What is the difference between the euphotic zone and the bathyal zone of the ocean
Answers
Answer:
Euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur. Beneath lies the disphotic zone, which is illuminated but so poorly that rates of respiration exceed those of photosynthesis.
Bathyal zone is the part of the pelagic zone that extends from a depth of 1000 to 4000 metres below the ocean surface. It lies between the mesopelagic above, and the abyssopelagic below.It is ala known as midnight zone.
Explanation:
Which of the following would not be expected to contain tissues?
A. Harvester ant
B. African elephant
C. Unicellular bacteria
D. Oak tree
btw i picked C. Unicellular bacteriawhat
Answers
Unicellular bacteria does not contain tissue. Thus option C is correct.
What are the types of epithelial tissue in human ?A tissue is a cluster of similar cells that perform specific function.
Epithelial tissue one most important type of tissue.
It can be up two types such as Simple epithelium and Stratified epithelium.
Simple epithelium is a single layer of identical cells, observed at sites of secretion, absorption of substances.
It can be up three types Squamous epithelium, Cuboidal epithelium, Columnar epithelium.
Simple Squamous epithelium is single layer of flattened cells found Lungs-alveoli, Blood vessels-endothelium.
Simple cuboidal epithelium found in tubules of nephrons and glands which is involved secretion, absorption, and excretion, etc.
Simple columnar epithelium found in the inner layers of the stomach, intestine, trachea,
Stratified epithelium which is multiple layers epithelial tissue can be up 4 types squamous, cuboidal, columnar, Psuedo-stratified columnar epithelium.
Thus option C is correct.
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What 2 things must pass out of the nuclear pores?
Answers
Answer:
The two things that must pass through nuclear pores are small polar molecules, ions, and macromolecules (proteins and RNAs)
Explanation:
Answer:
small molecuels and ions
Explanation:
Which of the following happens as part of both the lytic cycle and the
lysogenic cycle?
new viruses are made
O the host cell dies
O the entire virus infects the cell
O the virus injects its nucleic acid into the host cell
Answers
Answer:
vnmvm
Explanation:
please help, give explanation please!
Answers
Answer:
1. 0 chance (0%)
2. 2 chances (50%)
3. 4 chances (100%)
Explanation:
the way a punnet square works is that you basically multiply two genes. for example:
b b
B Bb Bb
b bb bb
then, if it's uppercase, it is dominant. if it's dominant, it will take over the recessive gene. if it was Bo, B being brown and dominant, and o being recessive and orange, then brown would take over. there are also cases with codominant but that's not in the question. feel free to ask me anything about this.
Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Check all of the following that could be used to decide whether the things Judy saw were living. (
Answers
Answer:
Living Cells created from the dead grass
Explanation:
Because the water has nutrients.
ill give brainliest to anyone who helps me with this
Describe the processes of transcription and translation in your own words
Terms to use in your answer: amino acid, anticodon, codon, gene, messenger RNA, nucleotide, ribosome, RNA, RNA polymerase, transcription, transfer RNA, translation.
Answers
Answer:
Explanation:
The genes in DNA encode protein molecules, which are the "workhorses" of the cell, carrying out all the functions necessary for life. For example, enzymes, including those that metabolize nutrients and synthesize new cellular constituents, as well as DNA polymerases and other enzymes that make copies of DNA during cell division, are all proteins.
In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (Figure 1). The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule.
5. The structures pictured in Fig. 1 are found on the undersurface of a leaf.
What is the name and function of these structures?
Please i really need help because i’m french and it’s hard
Answers
Answer:
I think the black ones are stomata or guard cells and they are attached on epidermis
Stomata is used for breathing and epidermis is the skin(outer layer) of plants
Explanation:
I hope this helps a little please give me brainliest
Answer:
epidermis
provides barrier against injury and water loss
guard cells
surrounds stomata also closes and opens stomata
stomata
allows gaseous exchange
Explanation:
If a DNA strand has 32 % guanine, what percent thymine does it contain?
A) 36%
B)18%
C)64%
D)32%
Answers
Answer:
B
Explanation:
Guanine and Cytosine pair together. So, if 32 percent is guanine, then 32 percent should also be cytosine. This is a total of 64 percent. The remaining 36 percent is split between thymine and adenine. So, Thymine will have half of 36 percent which is 18 percent.
Calculate the momentum for the following football player: Todd: mass = 80 kg, velocity = 1.7 m/s
Answers
Answer:4.9
Explanation:80+1.7=4.9
how you think reproduction differs among these four animals.
a. bird. b. human c. ants d. sea stars
Answers
Answer:
c
Explanation:
Mike works as a nurse in a hospital he accidentally gave a patient a hypotonic solution. such as distilled water instead of an isotonic solution suck as saline
what changes will occur in the patients cells ?
what can be done to fix this problem ?
Answers
Answer:
The patient's cells will swell and then burst. The solute concentration outside the cell is lower than inside the cell, so water will move into the cells.
Mike would have to give the patient a hypertonic solution, which will cause water to move out of the cell and the cell to shrink followed by an isotonic solution, which should regulate the concentration inside and outside the cell.
Hope that helps.
would the smell of perfume make it across the room faster if it were colder or hotter in the room ?
Answers
Answer:
hotter
Explanation:
Answer:
hotter
Explanation:
Name this stage of the cell cycle
A) prophase
B) Metaphase
C)interphase
D)telophase
Answers
Answer:
mitosis
Explanation:
From which type of cells did multicellular organisms arise?
Answers
Answer:
Unicellular eukaryotes
Explanation:
If one was able to view the individual particles in each of these substances, which particles would appear to be moving the FASTEST?
A) the water molecules in a sheet of ice
B) the neon plasma in a fluorescent 'Open' sign
C) the atoms in the liquid mercury of a thermometer
D) the carbon dioxide molecules in the fizz of a cola drink
Answers
Answer:
D and A are devently slow My guess would be B or C, since a neon sign usually turn on instantly (or technical within mil a seconds) Its probably the fastest
my guess is C
PLEASE HELP I WILL GIVE YOU MULTIPLE BRAINLYS ON DIFFRENT POSTS!!!!!!!
Answers
Explanation:
hy i can help you but what we have to do in that pdf
edicted answer - oh! i got that
I saw from the comments
Can u mark me as brainliest
Stay safe !
Suppose the great, green galoofus lizard has 28 chromosomes in the nucleus of its unfertilized eggs. Predict how many chromosomes will be in the skin cells of a great, green galoofus lizard?
Answers
Answer: 56
Explanation:
Because an unfertilized egg has half the chromosomes of a fertilized egg. The fertilized egg then splits, and continues splitting until the lizard is born. Always remember, whenever a question talking about an unfertilized egg, it has half the chromosomes of a fertilized egg. One more side note, it doesn’t matter what body part you talk about. A skin cell will have the same number, and identical chromosomes compared to a heart cell. (So long as it’s the same organism, if it isn’t, but part of the same species, it will have the same number of chromosomes, but it may have a unique set of chromosomes). If you want me to go into detail, I can, just respond to this answer.
What animals do not have a gallbladder? What type of digestive system do they have?
Answers
Answer:
Horses, Deers, Rats all don't have gallbladers
Different species of animals are better able to digest certain types of feeds than others. This difference occurs because of the various types of digestive systems found in animals.
What organelle wouldn’t have a job if the smooth and rough ER didn’t work?
Answers
Answer: The Golgi apparatus.
Explanation: I believe it is the Golgi apparatus as the Rough ER and Smooth ER create proteins and sort them in to piles before sending to the Golgi apparatus to deliver.
The Smooth ER and Rough ER are like the suppliers while the Golgi apparatus is like the transporter.
Remember: Proteins have many functions and are needed severely to perform those actions that without the Golgi apparatus, those proteins wouldn’t be able to be transported.
What’s the answer to this??
Answers
Answer:
3
Explanation:
The area labeled X is known as
A.
an atomic nucleus
B.
an active site
C.
a pH indicator
D.
a temperature regulator
ecule
Answers
An active site is the area at where the enzyme gets attached. The are labelled X is known as an active site.The correct answer is option B.
What is an atomic nucleus ?An atomic nucleus is the central region of the atom at which the number of protons and neutrons are in abundance. The charge carried by the nucleus is positive in nature.
The picture shows the lock and key method where it is the relation between enzyme and substrate where the enzyme and substrate are almost same in shape where the lock is the substrate where the enzyme is of key shaped and they both fit in.
An active site is the region of the reactant or substrate where the enzyme will bind in and the reaction will form a product. The binding of both the constituents depend on the binding energy and activation energy of the reaction.
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Write the importance of medicinal plants in human life.
Answers
Answer:
The importance of medicinal plants in human are as follow:
Medicinal plants are considered as a rich resource of ingredients.It is used in drug development either pharmacopeial and none pharmacopeial or synthetic drug.It has it's origin in ancient culture .Using medicinal plant doesn't have any side effects.Answer:
hope it'shelps you have a great day keep smiling be happy stay safe ☺Sickle cell anemia is a genetic disorder in which the hemoglobin responsible for transporting oxygen is misformed. The disease begins with a mutation in a _______________ acid, which results in a structural difference in a–
Protein; nucleic acid.
Nucleic acid; lipid.
Nucleic acid; protein.
Protein; lipid.
Answers
Answer: protein , nuclei acid
Explanation:
A vacuole is the cell's _______________.
A: control center
B: storage place
C: energy processor
Answers
Answer: B- storage place
Explanation:
Which of the following limiting factors would have the least affect on poulation size?
A.
drought
B.
succession
C.
wildfire
D.
decomposition
Answers
Answer: D
Explanation:
Help me please I don’t understand I rlly need the answer
Answers
(ignore this)
Answer:
True
Explanation:
I read it at biology class
List the inputs and
outputs of photosynthesis.
What part(s) of the plant
are responsible for taking
in each of the inputs?
Answers
Answer:
Photosynthesis Inputs. 6H2O, 6CO2, (light) energy.
Photosynthesis Outputs. C6H12O6 (glucose), 6O2.
Light Reactions Inputs. Light (energy), ADP, Pi, NADP, H2O.
Light Reactions Outputs. O2, ATP, NADPH.
Calvin Cycle Inputs. CO2, ATP, NADPH.
Calvin Cycle Outputs. G3P.
Explanation:
how would you describe the motion of a transverse wave
Answers
Answer:
Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.
Explanation:
hope it helps you.
What does evaporation change from ? Solid ———> liquid Liquid ———-> Solid What does condensation change from Liquid——-> solid Solid———> liquid
Answers
Answer:
Evaporation : Liquid --- Gas (Vapor) ; Condensation : Gas (Vapor) --- Liquid
Explanation:
Evaporation is the change of a liquid into gas or vapor, usually by increase in temperature. Eg : Water evaporation into vapors during water cycle, due to sun heat.
Condensation is the change of gas or vapor into liquid, usually by decrease in temperature. Eg : Vapors condensation into water droplets during water cycle, due to lower atmospheric temperature at higher height.