Answer:
Although 3 and 4 are great answers, I honestly think the answer is C. Because you can simply define the cell wall as a semi-rigid thick protective structure that surrounds the cell membrane of some types of cells for protection and defining the shape of the cell. The cell membrane alone cannot provide the required rigidity or strength. All living organisms are composed of cells. Cell walls contain only little amount of protein in the cell wall.
Explanation:
Not all cells have a cell wall; the cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Cell walls are found in both prokaryotes and eukaryotes, although not all cells have cell walls. Animal cells does not have a cell wall; Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.
state the form in which carbohydrates are:1.transported in animals:plants
color vision in vertebrates is made possible by cone cells.
Answer:
Is that a question or are you just stating a fact.
Explanation:
We have been talking about plant and animal cells over the past couple weeks. Plant cells have two organelles that animal cells do not contain. Name the two organelles that can be found in plant cells but not in animal cells and describe what each of those organelles do. Please answer in at least 5 complete sentences.
I will crown brainliest! pls help me
Answer:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Explanation:
brainliest
Which of the scientist responsible for the cell theory would be most likely to write a book titled Cells Come from Cells?
Hooke
Schlieden
Virchow
Schwann
the answer is Virchow. hope it helped
Answer:
Virchow
Explanation:
Rudolf Virchow proposed that all cells come from pre-existing cells, so if anyone were to write a book that is titles Cells Come from Cells, then it would be Virchow.
Bacteria add carbon to the carbon cycle by (1 point)
O being consumed by larger organisms, such as plankton.
O decomposing dead organisms.
exchanging carbon dioxide and oxygen gases
O performing photosynthesis.
Bacteria and the carbon cycle have an important link, to understand this link we need to know that.....
The carbon cycle
The carbon cycle is constituted by the absorption of carbon dioxide by plants in the process of photosynthesis. Half of this absorbed carbon is released into the atmosphere and the other half the plant uses to produce sugars (glucose). When ingesting plants, animals ingest carbon together for their organism, being released through respiration or its decomposition.
Bacteria add carbon to the carbon cycleFungi and bacteria are responsible for the decomposition of both
Animals and PlantsThey ingest part of this carbon, releasing it to the atmosphere and the soil.
With this information, we can say that bacteria add carbon to the carbon cycle by decomposing dead organisms.
Decomposers, such as bacteria, are extremely important, because without them the carbon cycle would not be complete.
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a sample of dna contains 10% guanine. what is the percentage of the remaining nitrogenous bases?
Answer:
10% 40% 40%
Cytosine 10%, Thymine 40% and Adenine 40%
If the sample of DNA contains 10% guanine, the percentage of remaining nitrogenous bases are cytosine 10%, adenine 40%, and thymine 40%.
What is a Nitrogenous base?
A nitrogenous base may be defined as the nitrogenous compounds that form an important part of the nucleotides which are known as the building blocks of nucleic acids like DNA or RNA.
According to the question,
The concentration of guanine in DNA = 10%.
According to Chargaff's rule, the amount of guanine is equal to the amount of cytosine. So, the concentration of cytosine is also 10%.
Now, the remaining amount of nitrogenous base = 100-20 = 80%. This 80% is divided into adenine and thymine 40% each.
Therefore, the percentage of remaining nitrogenous bases are cytosine 10%, adenine 40%, and thymine 40%.
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7. What is the difference between a monosaccharide, disaccharide and a polysaccharide?
Explanation:
Monosaccharide are the simplest form of sugar. Example: Glucose and Galactose
Disaccharides are two units of monosaccharide. Example: Sucrose, Lactose and Maltose
Polysaccharide are more than two units of monosaccharide. Example: Cellulose and Starch
Look at the picture. What word describes the liquids in stage 1?
Answer:
let me ask wheres the picture
Explanation:
which gland secretes hormones that control the pituitary gland
Answer:
the hypothalamus.
Explanation:
What is science meaning
Answer:
the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.
Explanation:
Hope this helps :)
Pls make brainliest :P
And have an amazing day <3
Answer:
Science is the study of the nature and behavior of natural things and the knowledge that we obtain about them. ... A science is a particular branch of science such as physics, chemistry, or biology.
Explanation:
hope this helps <333
brainliest plz ?:)
Which types of proteins help defend the body against foreign agents like bacteria?
A.
antibodies
B.
hormones
C.
enzymes
in eukaryotes, how can a single gene code for several different proteins?
Answer:
Gene splicing is a post-transcriptional modification in which a single gene can code for multiple proteins. Gene Splicing is done in eukaryotes, prior to mRNA translation, by the differential inclusion or exclusion of regions of pre-mRNA. Gene splicing is an important source of protein diversity.
PLS FAST "Can stem cells cure diseases"ESSAY
**100 POINTS**
Answer:
stems can cure diseases because it is a medicine for human beings
Explanation:
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Somebody help me please
The diagram shows a plant.
light
Which characteristic of living organisms is shown by the plant in the diagram?
A excretion
B reproduction
C respiration
D sensitivity
Choose 2 levels of organization of living things to describe in detail.
True or False: The most common conditions of COPD are emphysema, which destroys air sacs, and chronic bronchitis, which causes airway inflammation.
Answer:true
Explanation:
Somebody help me please
Answer:
ppap
Explanation:
which organism is most likely to be responsible for the boils?
Answer:
Staphylococcus aureus
Explanation:
Which organism is most likely to be responsible for the boils? (Staphylococcus aureus is a halophilic, Gram-positive coccus that produces yellow colonies and ferments mannitol.) What is a boil? A boil is a flat, red rash affecting a great portion of skin surface area.
I don’t understand?
Answer both
Answer:
i believe its B
Explanation:
If you get it wrong im so sorry
but if i you get it right may i have brainliest
it would really help...:)
a substrate-level phosphorylation occurs in the citric acid cycle when _____.
Answer:
It is a sequence of chemicals reactions in which molecules are broken down in the presence of oxygen to generate energy.
Explanation:
This energy was converted into ___________________ energy as the water flowed down the tube.
Answer:
Kinetic Energy
Explanation:
Kinetic energy is a form of energy that an object or a particle has by reason of its motion.
What will most likely happen if the human population continues to grow and carelessly emit gases?
Answer:
The human population will most likely end up having issues living on earth making them have to move to some other planet that we will ruin. Anyways, we will most likely end up extinct.
Where do branch roots originate
Answer:
The branch root originates at the pericycle of the parent root, just outside the parent root's primary xylem.
Explanation:
the central focal point in the retina where cones are heavily concentrated is known as the:
A heron is affected by many factors in its environment. What distinguishes the biotic factors from the abiotic factors?
Answer: C. living and nonliving
Explanation:
A heron is affected by many factors in its environment. Living or non-living distinguishes the biotic factors from the abiotic factors. So, the correct option is (C).
What are Biotic and Abiotic factors ?Biotic Factors
The term biotic is composed of two terms: “bio” describes living organism and “ic” which explains like, combined they are called as living organisms. Therefore we can infer that all living organisms which exists on earth are called as biotic components. Such as Plants, animals, human beings, decomposers, yeast, insects, etc.
Biotic components interface to develop new generations i.e to reproduce new organisms to sustain stability in the food chain.
Abiotic Factor
Non-living things of an ecosystem are called abiotic factors. They play a crucial role in shaping ecosystems as both biotic and abiotic factors interaction is a must for the permanence of the ecosystem.
Examples of Abiotic Factors are air, weather, water, temperature, humidity, altitude, pH, level of soil, types of soil and more, water flow rate, water depth, etc.
Thus, a heron is affected by many factors in its environment. Living or non-living distinguishes the biotic factors from the abiotic factors. So, the correct option is (C).
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what is found inside the nucleus and produces ribosomes
Answer:
Im pretty sure its the nucleolus.
Explanation:
pls help
correct matching???
bio
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The Correct matches are :
Selective breeding :
The process by which desired traits of certain Plants and Animals.
Inbreeding :
Crossing parent organisms with the same forms of a trait to produce.
Hybridization :
Crossing parent organisms with different forms of a trait to produce.
How did Kepler develop his second law of motion?(1 point)
a He made accurate measurements of the positions of all the planets over many years.
b He used a telescope to carefully follow and time the orbital motion of Mars.
c He compared data of planetary motion at different times along orbits.
d He invented a telescope that was strong enough to view all planets of the solar system along their orbits.
Answer:
He found that the planets do not all move at the same speed. (A)
Explanation:
Kepler develop his second law of motion by he made accurate measurements of the positions of all the planets over many years. So, the correct option is A.
What do you mean by Kepler's second law?Kepler's second law states that a planet moves in its ellipse so that the line between it and the Sun placed at a focus sweeps out equal areas in equal times.
This discovery by Kepler gives the idea of the planetary motion of all planets. According to this law, the planets moved on a circular path around the sun, but the speed of revolution is different for each planet.
Therefore, Kepler develop his second law of motion by he made accurate measurements of the positions of all the planets over many years.
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why are hydrogen atoms different from the atoms of all other atoms
Answer:
the nucleus of an ordinary hydrogen atom does not contain any neutron in it. only hydrogen atom contains one electron ;all other atoms contain more than one electron .A hydrogen atom contains only one Proton in its nucleus, atoms of all other elements contain more than one proton.