Answer:
A. Phospholipid bilayer
Explanation:
Cell membrane is a selective permeable structure in all living cells that allows the passage of some molecules and disallows some. This function of the cell membrane is attributed to the PHOSPHOLIPID BILAYER CONTENT of its structure.
The phospholipid bilayer contains both a hydrophobic end (water fearing) and hydrophilic end (water loving). The interaction of the molecules with these regions of the membrane serves as the basis for the movement of molecules across the cell membrane.
Answer:
Globular proteins! The other answer is sadly wrong.
Explanation:
I just took the quiz. Many globular proteins positioned throughout the cell membrane help the large, polar molecules across. These globular proteins in the cell membrane are the membrane proteins.
Also, I accidently put a 1 star on my own answer, but it's correct.
Which of the following correctly describes the function of the cell wall?
The cell wall provides rigid support and protection for the cell.
The cell wall is a network of fibers inside the cell that gives the cell its shape.
The cell wall is a barrier that allows certain substances into and out of the cell.
The cell wall is a series of folded membranes that produces and distributes proteins in the cell.
The cell wall is a layer outside the cell membrane and provides rigid support and protection to the cell. So, the correct option is A.
What is a cell wall?A cell wall is a thick and rigid layer composed mainly of polysaccharides present outside of the cell membrane that protects the cell. A cell wall is a part of a cell but it is not a living component. Unlike the cell membrane, a cell wall is totally permeable in nature.
The cell wall of different kinds is present in plants, fungi and prokaryotes. Animal cells do not have a cell wall.
The cell wall in fungi is made up of a polysaccharide called chitin. This component is also present in the exoskeletons of arthropods.
The cell wall in the case of prokaryotes is made of a polysaccharide called peptidoglycan. Prokaryotes have 2 layers in their cell wall.
Plants contain cell walls made of cellulose. The plant cell wall has 3 layers. These are pectin, cellulose and hemicellulose. It also contains a small number of minerals.
The materials required for the formation of the cell wall are a special kind of polysaccharide called structural polysaccharides. The monomer for these polysaccharides is glucose.
Therefore, the correct option is A.
Read more about cell walls, here
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Where do action potentials end?
The action potential terminates at the axon terminal or terminal boutons.
What do you mean by Action potential?Action potential may be defined as reversal activity in electrical potential across a plasma membrane that occurs when a cell has been activated by a stimulus.
The action potential is generated at the region of the axon hillock and propagates along the axon. Finally, they terminated at the region of the axon terminal.
Therefore, the action potential terminates at the axon terminal or terminal boutons.
To learn more about Action potential, refer to the link:
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What are the three types of homologies and the definitions?
Answer:
hope this helps..
Explanation:
Dependent on the level of comparison four types of homology are defined: ( 1) Iterative ( = serial = homonomy), (2) ontogenetic, (3) di- or polymor- phic, and (4) supraspecific homology. ... Scientists have recently been paying renewed attention to the homology question.
Homology is the study of likeness, the similarity between species that results from inheritance of traits from a common ancestor. The study of similarities is broken up into three main categories: structural, developmental, and molecular homology.
Eukaryotic cells have membrane bound organelles and DNA contained in a nucleus.
True
False
Answer:
True
Explanation:
Eukaryotic cells DO have membrane-bound organelles and a DNA contained in the nucleus which is different from prokaryotic cells which DO NOT have membrane bound organelles and normally do not have a nucleus.
Hope this helps! Let me know!
02.01 properties of water
Answer:
i know only 3 properties
Explanation:
colourless
odourless
tasteless
1.Which of the following is an example of nature's leftovers? Oa snake eating an entire mouse carrots left underground after the leaves have been eaten aboveground O a bird eating an entire earthworm a plant growing in a garden
Answer:
i choose O2
Explanation:
a bird eating an entire earthworm a plant growing in a garden (confused)
an earthworm and a plant are both products of nature and that is normal between nature's survival for the fittest so a plant eating an earth worm is way of showing nature's leftovers of the earth worm and plant
Am giving branliest and extra point to who helps me answer question 21, 21, and 23!!!!
Answer:
it decreases for the first one. And for the second one too. B for the last one
Explanation:
Answer:
21: C
22: A
23: B
Explanation:
POSSIBLE HYPOTHESIS:
INDEPENDENT VARIABLE
DEPENDENT VARIABLE:
EXPERIMENTAL GROUP:
CONTROL GROUP:
CONCLUSION:
Please help quick
What is located on chromosomes
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells.
Explanation:
Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
Which statement best describes the feeding behavior of salamanders that live on land?
A. They are active at night, and they feed on insects, crustaceans, and worms.
B. They are active at night, and they feed on berries and leaves.
C. They are active during the day, and they feed on insects, crustaceans, and worms.
D. They are active during the day, and they feed on berries and leaves.
Answer: The answer to your question is A. They are active at night, and they feed on insects, crustaceans, and worms.!
Explanation: Salamanders are ( by nature ) carnivorous and nocturnal, these to factors match to answer A. While these traits could likely be changed due to an alarmingly high amount of pressure such as lack of food, or differentiating climates ( because salamanders prefer colder parts of the day instead of hotter ), your answer is A!
Hope this helps, if not, comment below please!!!
Answer:
the answer is A They are active at night, and they feed on insects, crustaceans, and worms.
The atmosphere exerts a force on earth. Why does yhe atmosphere exert pressure on earth?
Answer:
The atmospheric molecules have energy because they have a quantifiable temperature. It vibrates and circulates, and bumps into other gas molecules. Most of them are elastic, which means that the molecules bounce off more than they stick together. The "bump" is a strength. It becomes pressure when applied over an area, such as your skin or earth's surface.
Explanation:
How much is the pressure of the atmosphere?
Pressures are determined by height (mostly by the volume of water vapor), temperature, and weather. The average air pressure, however, is 14.7 pounds per square inch, 29.92, or 1.01 to 105 paschal in regular conditions at the marine level. At 5 km altitude, atmospheric pressure is just about 50%. (about 3.1 miles).
Why is the Earth's surface under pressure so much higher? It's because the weight of all the air at that location really is measured. There's not much air around you to press down while you are high in the atmosphere. The whole atmosphere is heaped above you on the surface of the Earth. While the gas molecules are extremely light and distant, they are many!
please help:(( Which of the following is true about gas produced in a chemical reaction?
a. When gas is formed matter has been destroyed.
b. It is impossible to capture and measure all gas produced by a chemical reaction
c. It is difficult to capture and measure all gas produced by a chemical reaction
d. Gas doesn't have any mass
Answer:
b. It is impossible to capture and measure all gas produced by a chemical reaction.
Explanation:
is the pull of gravity on an object.
O a. Mass
O b. Element
N
O c Weight
d. Matter
Moving to another question will save this response.
Answer:
Mass
Explanation:
The measure of the pull of gravity on an object is called weight. For an object to have weight it must have mass.
Which of the following would be particularly damaging to the chaparral biome?
a.
wildfires
b.
flooding
c.
drought
d.
none of the above
ANSWER IS D- NONE OF THE ABOVE
Answer:
Wild fires
Explanation:
Because a chaparral biome is sort of a forest.
Answer:
D. None of the above
Explanation:
Chaparal Environments posses organisms that have adapted to wildfires as a result dense vegatation and low humidity during the summer , they have adapted to flooding evidently from the high amounts of precipitation during the winter months, and they have adapted to drought seeming as the majority of the inhabitance store water or adapt to use less of it.
One suprising fact of the animal kingdom is that only approximately 5% of animals are classified into which group
Answer:
Chordates
Explanation:
A cell with a well-defined nucleus and cytoplasm surrounded by a plasma membrane is a "what" cell.
Answer:
Eukaryotic cell
Explanation: Eukaryotic cells are the only cells that have a nucleus and membranes.
Answer:
Eukaryotic cells
Explanation:
In eukaryotic cells, which have a nucleus, the cytoplasm is everything between the plasma membrane and the nuclear envelope. Hope this helped!
Describe the overall trend in corn yield from 1988 to 2008. How does the trend in corn yield during the time compare to tends for total nutrients and nitrogen?
The trend in the corn productivity shows an increase from the year 1988 to 2008.
This is because of high yielding varieties of corn, new technology and application of optimum dose of fertilizer and other agronomic activities. The trend in corn yield for the nutrients and nitrogen increases because new high yielding varieties needs more nitrogen as well as other nutrients as compared to local or old varieties so it is concluded that productivity and nutrients uptake increase with the passage of time.
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Answer:
thank you to the person who answered this lol
Explanation:
Fill in the blanks to complete the passage.
Geologists can use
waves to learn about Earth’s interior. P waves travel faster than S waves. S waves travel through solids only, which tells geologists that the
core is liquid.
Geologists call the outer, solid area of Earth the crust; the next layer is the
. Finally, at the very center, is the core.
Answer:
the correct answers are
Geologists can use
seismic
waves to learn about Earth’s interior. P waves travel faster than S waves. S waves travel through solids only, which tells geologists that the
outer
core is liquid.
Geologists call the outer, solid area of Earth the crust; the next layer is the
mantle
. Finally, at the very center, is the core.
Explanation:
answers are underlined
mark me brainliest pls
Answer:
seismic
outer
mantle
In that order.
Explanation:
The structure in the cell/plasma membrane that handles Facilitated Diffusion and Active Transport is built of amino acids in the Ribosomes. What is this
Macromolecule?
Nucleic Acid
Lipid
Protein
Carbohydrate
What two basic geologic processes contributed to the formation of folded mountain ranges like in Glacier National Park?
A. Folding and breaking of ingenuous rocks and tectonic uplifting.
B. Faulting of sedimentary rock and erosion.
C. Volcanic ash buildup and faulting of rocks.
D. Folding and breaking of sedimentary rocks and erosion.
Answer:
D. Folding and breaking of sedimentary rocks and erosion.
The two basic geologic processes that contributes to the formation of folded mountain ranges are ; ( D ) Folding and breaking of sedimentary rocks and erosion
Folded mountains are formed by the collision of two or tectonic plates, the movement and collision is mostly caused by massive erosion.
Tectonic plates are formed by the breaking down of the earth's outermost layer into large rock slabs which lies on a molten layer of rock these large slabs are components/make up the sedimentary rocks
Therefore the folding and breaking of sedimentary rocks caused by massive erosion leads to the formation of folded mountain ranges.
Hence we can conclude that The two basic geologic processes that contributes to the formation of folded mountain ranges are ; Folding and breaking of sedimentary rocks and erosion
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What is a fault line?
A student studied the growth of mold on strawberries. One container of strawberries was vacuum-sealed to
remove the air and the other container was covered by plastic wrap. Both containers were placed in the
refrigerator. After two weeks, the vacuum-sealed strawberries contained less mold than the plastic-wrapped
strawberries. Which is the best conclusion based on these results?
Which of these are NOT found in plant cells?
a)cell membranes
b)centrioles
c)mitochondria
d)cell walls
Answer:
It would be the B Centrioles
Which represents the cross between parent plants if one is heterzygous and has yellow-colored pods and the other is homzygous and has green-colored pods?
Yy ´ yy
YY ´ yy
Yy ´ Yy
yy ´ yy
Answer:
Its the first one
Yy is yellow (dominant) and heterozygous
yy is green (recessive)
with Yy and yy, you could only get 50% Yy(yellow) and 50% yy(green). There is no way to make only yy or YY, and in order to make 100% Yy you would need one yy and one Yy
The cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homzygous and has green-colored pods - Yy yy
Heterozygous genotype:The presence of two different alleles at a particular gene locus.A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles.Y for yellow and y for green then the heterozygous parent would be - Yy with yellow phenotypePurebred genotype:
consists of gene pairs with genes that are the same allele typealso called the hozygousY for yellow and y for green then the hemzygous parent would be - yy with green phenotypeThus, the cross would be - Yy yy
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What are the major parts of a cell
Answer:
Cell membraneNucleusCytoplasmI hope this helps!
Answer:
Nucleus, nucleolus, ribosomes cell membrane, cytoplasm, mitochondria et cetra.
what is dogs made of cheese
Answer:
There is a dog called cheese dog. which are prefering chili cheese dogs
Explanation:
Explain the connection between the Nucleolus, ribosome, and RER.
AnswerExplanation:
The nucleolus is a region of the nucleus where ribosomal RNAs are synthesized.
Ribosomes are protein synthesis factories made from the ribosomal RNAs that are synthesized in the nucleolus and ribosomal proteins.
Sometimes, ribosomes are found free in the cytoplasm, other times they are attached to the endoplasmic reticulum, forming the rough endoplasmic reticulum. The rough endoplasmic reticulum is the site of protein synthesis for proteins that are to be secreted from the cell
3 Ag Brt Ga PO 4 Ag₃PO4 + Gabrz
Balance or unbalanced
Answer:
I believe that this is balanced.
Answer: balenced
Explanation:
Just took a quiz on this, it was sucky but I got a few right and this was one of them <3
A nucleotide is the building block for a specific biomolecule. It is made up of a pentose sugar, a phosphate group, and a nitrogen base. One of its functions in polymer form is to store genetic information. Which two types of biomolecules are being described in this scenario?
A . Nucleic acids and carbohydrates
B . Nucleic acids and proteins
C . Lipids and nucleic acids
D. Proteins and lipids
Answer:
D
Explanation:
The two types of biomolecules being described in the scenario would be nucleic acids and proteins.
Nucleotides are the building blocks of nucleic acids. Each nucleic acid in the form of DNA or RNA has its nucleotide sequence.
DNA is responsible for the storage of genetic information. In order for genetic information to be expressed, the information in DNA is transcribed into RNA. The genetic codes in RNA are translated to their respective amino acids and linked together by peptide bonds as proteins. Thus, genetic information are usually expressed in proteins and the RNA serves as an intermediate molecule.
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I need help with 02.04 science natural selection please help me this is all my points im using
01.08 ang sagot nasagot namin yan e