Answer:
Advantage of cell walls
It protect and support the cell .
To give difinite shape for the cell.
Having cell walls surrounding cell membranes provides several advantages to plants, including structural support, protection against pathogens, regulation of water balance, and prevention of cell rupture.
The cell wall is a rigid structure located outside the cell membrane in plant cells. It is composed primarily of cellulose, a complex carbohydrate. Here are the advantages of having cell walls:
Structural Support: Cell walls provide mechanical support to plant cells and help maintain the overall shape and structure of the plant. They allow plants to stand upright and withstand environmental forces such as wind or gravity. The cell walls of adjacent plant cells are interconnected, forming a strong network that provides stability to the plant as a whole.
Pathogen Protection: The cell wall acts as a physical barrier against pathogens such as bacteria and fungi. It prevents the entry of pathogens into the plant cells, reducing the risk of infection. Additionally, the cell wall can contain antimicrobial compounds and other defense molecules that provide further protection against pathogens.
Water Regulation: The cell wall plays a crucial role in regulating water balance within plant cells. It helps maintain turgor pressure, which is essential for cell expansion and overall plant growth. The cell wall allows water to enter and exit the cell in a controlled manner, preventing excessive water uptake or loss.
Cell Rupture Prevention: The rigid cell wall helps prevent cell rupture or bursting when the internal pressure within the cell increases. It provides strength and stability to the cell, allowing it to withstand internal pressure changes without bursting.
Overall, the presence of cell walls in plant cells offers significant advantages in terms of structural support, protection against pathogens, regulation of water balance, and prevention of cell rupture. These advantages contribute to the overall health, growth, and survival of plants in diverse environmental conditions.
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Which statement regarding DNA packing in eukaryotes is false?
A Tight DNA packing tends to promote gene expression
B) Euchromatin can be highly expressed
с
none of the answers are false
D
A nucleosome consists of DNA wound around a core of 8 histone
molecules.
E Highly compacted chromatin is generally not expressed at all.
Answer:
The correct answer is - A. Tight DNA packing tends to promote gene expression.
Explanation:
Euchromatin which is less packed or condensed is highly expressed as it participates in the transcription whereas highly compacted chromatin - heterochromatin not expressed at all as these does undergoes the transcription process.
DNA binds around a core of 8 subunits of Histone protein in a nucleosome in which DNA is negatively charged and histone protein is positively charged protein .
DNA packing decreases its transcription and hence no expression.
Paragraph
1
-C
B 6
А A
-D
6
Answer:
A :-):-):-)
Explanation:
Hope this helps:-)
difference between antigens and antibodies?
Answer:
Antigens are molecules capable of stimulating an immune response. Each antigen has distinct surface features, or epitopes, resulting in specific responses. Antibodies (immunoglobins) are Y-shaped proteins produced by B cells of the immune system in response to exposure to antigens.
Explanation:
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hopes this helps
If you do not know the answer than do not answer. You don’t have to answer all of the questions just answer the ones you know. Will give brainliest if you help.
Answer:
a,f,d,i,c
Explanation:
In animals sexual reproduction requires
Answer:
The placement of sperm within female's reproductive track.
Explanation:
In animals, sexual reproduction requires sperm of male has to be placed in the reproductive track of female where eggs are present. The sperm of male fuse with eggs of female produces zygote which turns into an offspring. The sperm of male and egg of female are haploid in nature means having half number of chromosomes but when they fused together then the zygote which is formed is diploid i.e. double number of chromosomes. The gametes are formed through meiosis not mitosis. Mitosis cell division occur in body cells.
HELP ASAP
Which of the following is an example of homeostasis?
Q. During a time of high stress, Justin's heart races, his muscles tense, and he feels
sweat dripping down his forehead.
R. Sick with the flu, Alison's body temperature rises to fever levels.
S. Boris doesn't drink very much water one day. To compensate his kidneys remove less
fluid from his blood, and produce less urine than normal.
T. As Grace races up the ten flights of stairs to her apartment, the muscle cells in her
legs produce excess lactic acid, causing a burning sensation in her legs.
Answer:
The correct answer is Boris doesn't drink very much water one day. To compensate, his kidneys remove less fluid from his blood and produce less urine than normal
Hope this helps :)
Explanation:
indicate FOUR
reasons why you think having it may enhance responsible living in your environment
Answer:
Can you please elaborate on ur question??
: d
What is the original biosphere, sometimes referred to as Blosphere 1?
O
a greenhouse on the Mir space station
the planet Earth
a sealed environment in Arizona
the human body
Answer:
The correct answer is - the planet Earth.
Explanation:
Biosphere 2 is the second self-sufficient biosphere that is a research center of America that is built to study, teach and research the purpose of the earth and its biosphere. It is termed biosphere 2 because the original biosphere is the primary biosphere that self-sufficient which is called biosphere 1.
Biosphere 1 is changed altered so much since it formed in various manners including the hydrosphere, atmosphere and different matter cycles.
How a terrestrial reptile will regulate body temperature if it is placed in a habitat that is extremely dry with the temperature of 55C
Based on the graph, how are the trends in greenhouse gases between the years 1500 and 2000 likely to affect the climate on Earth?
Answer:
The atmosphere would retain more heat, raising global temperatures.
Explanation: got this correct!
Answer: The atmosphere would retain more heat, raising global temperatures.
Explanation:
Got it right on PLATO
Space exploration can lead to money going to U.S.
businesses and universities.
What are two things NASA might hire U.S. businesses and universities to do?
A. Teach people to read
B. Improve athletic teams
C. Build complex equipment
D. Research new ideas
Answer:
build complex equipment andddd research new ideas
Explanation:
hope this helps yall!!!
Answer:
C & D
Explanation:
Ap3x
Which of the following describes the relationship between genes and chromosomes?
Select one:
Every gene an organism has is found on every one of its chromosomes.
Genes are special sequences of nucleic acids found on chromosomes.
All of an organism’s chromosomes can be found next to its genes in the cell nucleus.
Chromosomes form into genes during cellular reproduction.
Answer:
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
Explanation:
Which of the following conditions is an X-linked disorder?
A.
cystic fibrosis
B.
color blindness
C.
variegation
D.
Down syndrome
E.
sickle cell anemia
Answer:
THE ANSWER IS B I THINK
Explanation:
RJEBEJRHRHRRHRH
what makes a good scientific argument?
Answer:
the claim (or the explanation), the evidence (or the observations), and the rationale (or the reasoning). Reasoning that explains the evidence and why it supports the claim.
Explanation:
Hope this helps!
Answer:
Breaking their Theory and throwing liquid chemicals at their shirt and they get fired
Explanation:
How does the movie “The Martian” related to a biology concept?
Answer:
Because of the garden that the dude made on mars.
Explanation:
The dude grew plants from his crew's poop and made a little tent with airtight seals, and as he said, once you grow something, you colonize it.
PLEASE HELP IF YOU KNOW ABT PUNNETT SQUARES!!! Mendel conducted a cross between purebred organisms. Use a punnett square to show a cross between a purebred pea plant with yellow seeds and a purebred pea plant with green seeds. What would be all of the possible genotypes of all the offspring?
A. 100% yy
B. 100% Yy
C. 50% Yy and 50% yy
D. 75% Yy and 25% yy
Answer:
B
Explanation:
I assume the plants with the yellow seeds are dominate (YY) , while the ones with green seeds are recessive (yy) (Since it would need to be recessive to be a different color than the dominate). The genes will always be heterozygous then, since it combines the genes from both parents.
2. The diagram below represents a food web composed of producers, consumers, and
decomposers.
A
B
D
Which group would represent the decomposer organisms?
1) A
2) B
3) C
4) D
Answer:
B
Explanation:
because that is the 2nd decompers
B group would represent the decomposer organisms. Therefore, the correct option is B.
What are Decomposers?Decomposers are organisms that convert decaying organic matter into more basic components. They are an important component of the nutrition cycle because they convert complex chemical substances, such as nitrogen and carbon, into direct nutrients that can be absorbed by plants and other living things.
Some species of bacteria, fungi and insects are specialized decomposers. These organisms are essential to maintaining healthy soil because they aid in the recycling of nutrients and the breakdown of organic matter, which would otherwise build up and cause nutrient imbalances. Decomposers, which break down dead organisms and aid in the containment of pathogens, may be important in disease prevention.
Therefore, the correct option is B.
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if all the bees in the hive come from the queen how are they related
I NEED AN ANSWER
Answer:
Aren't they brothers and sisters
Answer:
The queen had all made them, so theyre brothers and sisters.
I’ll mark u as brainliest!
Answer:
39 purple stemmed plants
39 green stemmed plants
Explanation:
You'll end up with half and half! :)
help i’ll give you brainilest
How are Photosynthesis and Cellular Respiration Cycles connected?
1)The products of one cycle become the reactants of the other.
2)The sun provides energy for both photosynthesis and respiration.
3)Photosynthesis and respiration both take place in the mitochondria.
4)Animals eat plants for food and then do not need to perform respiration
How is Earth’s outer layer similar to a cracked hard-boiled egg?
Answer:
They're similar because both Earth's layer and a cracked hard boiled egg have a thin brittle shell.
Explanation:
The simplest nervous systems are called....
The simplest nervous systems are called [tex]\sf\purple{nerve \:nets}[/tex].
More:-This type of nervous system is found in [tex]\sf\red{hydras}[/tex] and [tex]\sf\blue{jellyfish}[/tex] (cnidarians).Nerve nets do not have a distinct central or peripheral regions, and lack anything that resembles a brain.[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
1 point
What is the purpose of respiration based on the image below?
Glucose
Oxygen
un
Carbon
Dioxide
Energy
Water
O To make glucose
O To make water and carbon dioxide
O To make energy
Answer:
I think the answer is To make energy
Explanation:
To release energy and carbon dioxide from the food with the help of the oxygen.
A ______ is anything in the environment that affects the behavior of an organism.
tropism
hormone
stomata
stimulus
Answer: stimulus
Explanation:
A stimulus is anything in the environment that affects the behavior of an organism.
A stimulus is anything in the environment that affects the behavior of an organism.
what seven elements have the appearance and properties of a metal but behave like the non-metal in certain situations?
Answer:
i. boron
ii. silicon
iii. germanium
iv. arsenic
v. antimony
vi. tellurium
vii. polonium
Explanation:
Elements that have appearance and properties of a metal but behave like non-metal in certain conditions are called semi-metals or metalloids. On the periodic table, they are found between metals and non-metals. Examples are astatine, polonium, tellurium, antimony, arsenic, germanium, silicon, boron.
Some of their properties that make them look like metals are:
i. They exist as solids at room temperature.
ii. They are shiny.
iii. They are ductile.
Some of their properties that make them look like non-metals are:
i. They are brittle.
ii. Not very good conductor of electricity compared to metals.
The seven elements have the appearance and properties of metal but behave like non-metal in certain situations.
I. boron
ii. silicon
iii. germanium
iv. arsenic
v. antimony
vi. tellurium
vii. polonium
Elements which have look and residences of a steel however behave like non-steel in sure situations are referred to as semi-metals or metalloids. On the periodic table, they're determined among metals and non-metals. Examples are astatine, polonium, tellurium, antimony,arsenic, germanium, silicon, and boron.
Some in their residences that cause them to seem like metals are:
i. They exist as solids at room temperature.
ii. They are shiny.
iii. They are ductile.
Some in their residences that cause them to seem like non-metals are:
i. They are brittle.
ii. Not an excellent conductor of strength in comparison to metals.
What are metals?
Metals are opaque, lustrous factors that might be the right conductors of warmth and electricity. Most metals are malleable and ductile and are, in general, denser than the opposite elemental substances.
Thus it is clear that the above answers are well explained.
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why are minerals important for our body? describe the 2 groups of minerals
Minerals are needed for the proper composition of body fluids, including blood, and for the proper composition of tissues, bone, teeth, muscles and nerves. Minerals also play a significant role in maintaining healthy nerve function, the regulation of muscle tone, and supporting a healthy cardiovascular system. There are two kinds of minerals: macrominerals and trace minerals.
Explanation:
.
Protein Synthesis and Codons Practice
DNA → T T C A A T G G T C T A G G G
RNA →
Amino Acids →
Answer:
RNA AAGUUACCAGAUCCC
Explanation:
Remember A codes for U
C for G
G for C
T for A
The amino acids will be for every codon (every three letters)
I don’t have a codon chart to translate at the moment but I hope this helps:)
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In the producers pool, in which molecule is the carbon found
Answer:
Carbon is found in almost everything so I would assume a lot
Explanation:
Btw I dont know what the producers pool is
Question 5
How do increases in the carrying capacity of Earth for people affect the carrying capacity of Earth for other species?
Select one:
It increases for most species.
It decreases for all species.
It decreases for most species.
It increases for all species.
Answer:
It increases for most species.