Answer: Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out
Explanation: All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.
Name one function of the respiratory system other than gas exchange?
Answer:
another function of respiratory system is
it allows to breathe
APC is a tumor suppressor and acts in the Wnt signaling pathway to prevent the TCF complex from turning on Wnt-responsive genes. Mice that lack the gene encoding TCF4 do not have the ability to maintain the pool of proliferating gut stem cells needed to renew the gut lining. What do you predict will happen in mice that lack the APC gene
Answer:
As APC is indicated as a tumor suppressor, lack of APC would lead to tumor development in the mutated mice.
Explanation:
The wnt signaling pathway plays an important role in controlling stem cell proliferation. Stem cells are present in the gut and other locations where they are required to be replenished after short intervals. In the gut, the gut epithelial is exposed to a very tough environment i.e. digestive acids. Thus it is replenished where the new stem cells originate from underlying stem cells.
Axin binding is the major component of this process. However, the unaffected axin leads to binding with a component termed TCF. TCF4 genes include cell cycle factors (such as myc) that encourage cell regeneration.
When the ligand is absent and APC is present, the axin bound with APC to form a team that directs and controls the cell regeneration.
Thus, if APC is not expressed in a cell, beta-catenin in the axin is available to bind to TCF inducing wnt response element genes that stimulate cell proliferation.
The result in tissue level is an enhanced rate of cell growth which leads to tumor.
Which environmental factor is likely to have the least impact on a population of organisms? *
5 points
A decrease in habitat size
An increase in the number of diseases
An increase in the number of predator species
A decrease in the number of competitive species
Answer:
A decrease in the number of competitive species
Explanation:
AG CLASS
Complete the following sentence.
A science professional who studies diseases of plants is called a plant _________.
No options to choose from:(
Answer:
A botanist
Explanation:
Botanist scientist
If a DNA sequence it GAATGCCT, what are the matching base pairs?
Answer:
CTTACGGA
Explanation:
Which role do ultrafine particles play in dirty air?
They contribute to less than 13,000 premature deaths a year.
They can worsen symptoms for people with breathing difficulties.
They are easily removed from the air when people see them floating.
They are constantly filtered by the nose, which prevents lung absorption
Answer:
B
Explanation:
The role the ultrafine particles play in dirty air is that they can worsen symptoms for people with breathing difficulties. The correct answer is b).
What are ultrafine particles?The term "ultrafine particles" (UFPs) refers to particles with a dimension of less than micrometers and more than 0.1 micrometres (100 nanometers), also known as nanoscale particles. The majority of the ultrafine particles are found on motorways and are mostly produced by vehicle emissions.
It has been demonstrated that ultrafine pollution particles may play a crucial role in igniting extra pathways or inflammation, which worsens asthma disease. The ultrafine particles released by motor vehicles and other sources of combustion are covered with an organic chemical coating that can be inhaled.
By oxidizing cells and tissues, these substances create free oxygen radicals that activate the immune system in the lung. For those who have asthma, oxidation exacerbates the allergic inflammation in their lungs.
Therefore the correct option is b).
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Select an organism of your interest! Research to see if that organism undergoes asexual or sexual reproduction. Describe why that type of reproduction is advantageous for your organism.
Answer:
Many fungi and plants reproduce asexually. Some plants have specialized structures for reproduction via fragmentation.
Explanation:
This allows them to adjust to conditions in the environment. They can spread quickly through asexual reproduction when conditions are stable. They can increase their genetic variation through sexual reproduction when conditions are changing and variation may help them survive.
Reproduction is a method by which the genetic material from the parent is transferred to offspring and in this way the character and traits are passed from generations.
I will select plants for my research purpose.
Plants are species that reproduce sexually. They have male and female organs that produce cells for reproductions. They sexually reproduce through the process of pollination.
This method of reproduction helps in genetic variation and in forming recombinant species that are more variant.
This variation helps the plant species to survive better compared to less competent species.
Sexual reproduction is beneficial for plants as it increases varieties and helps plants in fighting against a common population disease.
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If the DNA code for the amino acid alanine is CGA, the tRNA anticodon for alanine is ?
1.)AGC
2.)CGA
3.)CGT
4.)GCU
Answer:
2
Explanation:
3 QUESTIONS HELP ASAP PLZ!!!!!!!! AG CLASS
Sod growers market their produce on a national basis rather than a local basis.
False
True
Which of the following grass blends would be most appropriate when establishing a new golf course in a Southwestern region with a distinct winter and soil inclined to poor drainage?
Kentucky bluegrass and bentgrass
perennial rye and bermudagrass
Kentucky bluegrass and zoysia
perennial rye and bentgrass
Which of the following is a grass of Asian origins often used for fairways and teeing greens?
Bermuda grass
perennial ryegrass
bentgrass
Zoysia
Answer:
False
Kentucky bluegrass and zoysia
perennial ryegrass
hope it helps have a nice day
Answer:
answer is flase......
hope it helps
Is wetland salt water or fresh water ?
Or both
Estuary fresh water or salt water ? Or both
Ocean salt water or fresh water ?
Lake , river , stream , wetland , pond
Energy from the sun assists with the water cycle by:
A. Filling oceans
B. Precipitation
C. Water evaporating on Earth
D. Clouds becoming more dense
Choose one correct answer
Answer:
C
Explanation:
The heat of the sun provides energy to make the water cycle work. The sun evaporates water from the oceans into water vapor. This invisible vapor rises into the atmosphere, where the air is colder. The colder air causes water vapor to condense into water droplets and clouds.
Which type of heat transfer takes place when objects touch each other?
WILL MARK BRAINLIEST 27 POINTS
Answer:
conduction
Explanation:
Paragraph
Styles
1. Normal red blood cells can barely squeeze through the capillaries (the tiniest blood vessels). What
problems might be caused by sickle-shaped red blood cells?
Sickle-shaped red blood cells would slow down or cause a blockage (blood clot) to the blood vessels further leading to attacks such as heart attacks.
This is due to the fact; the new shape would simply be unable to pass safely through the small blood vessels to perform its main purpose of transferring oxygen throughout the body.
Research the effect of insulin on blood sugar after a meal. You may use outside sources. Select the correct statement. Insulin has no effect on blood sugar. Insulin increases blood sugar. Insulin reduces blood sugar.
Answer:
Insulin reduces blood sugar.
Explanation:
Insulin is an hormone produced naturally in the pancreas organ of the body. Insulin is majorly involved in digestion where it helps in the absorption process. Insulin aids the absorption of glucose by cells.
When a meal is eaten, the food digests and breaks down into GLUCOSE, which enters into the blood stream via the small intestine. Insulin ensures that the sugar (glucose) content in the blood REDUCES by moving glucose into cells for respiration (energy production) and storing the excess glucose as glycogen in the liver cells.
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPa, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl
Answer: hello your question is in complete below is the complete question
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPA, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl = ViEi + EmVm? (note Vi + Vm= 1.) O 5.88 GPa O 5.66 GPa O 2.52 GPa O 6.74 GPa
answer : 5.88 GPa
Explanation:
Fiber reinforced composite containing e-glass fibers
E for the glass ( Ei ) = 72 GPa
E for the epoxy ( Em ) = 2.4 GPa
Determine the Elastic modulus of a composite containing 5% fibers
percentage of glass = 5% = Vi = 0.05
∴ percentage of epoxy = 95% ; Vm = 0.95
using the relation included in the question
Ecl = Ei Vi + Em Vm
= ( 72 * 0.05 ) + ( 2.4 * 0.95 )
= 3.6 + 2.28 = 5.88 GPa
5. What are the other names and functions of ethyl alcohol?
Answer:
Ethanol, also called ethyl alcohol, grain alcohol, or alcohol, a member of a class of organic compounds that are given the general name alcohols; its molecular formula is C2H5OH.
Answer:
Ethyl alcohol is known as pure alcohol or Ethanol.
It can be used for the making of alcoholic beverages like beer and in medicine as a solvent.
Artesian springs bring pressurized groundwater to the surface through which feature of Karst topography?
streams
caves
fissures
igneous rock
Answer:
The correct answer is D) Fissures
Explanation:
Karst is a topography or landform that is created by the dissolution of soluble rocks beneath the surface by waters from the surface or below.
Fissures are formed when because of earth movements there is the occurrence of a long, narrow opening, in the earth.
Artesian springs refer to the water coming out through these cracks or openings in the earth onto the surface of the Karst topography.
Cheers
give an example of a change that the ecosystem was not able to recover from and return to equilibrium.
Answer:
Forestal tiene una cierta capacidad de "cicatrizarse" para recuperarse. Esta resiliencia ecológica varía con el contexto biogeográfico e histórico. El oeste de Nueva Orleans, seis meses después del paso del huracán Katrina
Explanation:
HELP AG CLASS
A mycologist is a specialized plant pathologist dealing in soil bacteria.
True
False
Answer:
false
Explanation:
I think mycologist is about mushrooms and yeast.
Answer:
False
Explanation:
Mycology is the study of fungi, not soil bacteria.
how long does it take bread and an apple to mold in a bag.
Answer:
Answer 1:It should take around 7-10 days before you will be able to see significant growth on the bread. You could see growth as soon as 5 days depending on the type of bread you used. Remember, fresh bread will mold faster than store-bought bread containing preservatives.
PLEASE ANSWER
How is composting solid waste similar to and different from burying it in a landfill?
Answer:
Basically, this means that because municipal solid waste that is buried in a landfill does not receive oxygen, it will produce methane. A compost pile, on the other hand, undergoes aerobic decomposition. ... But, if a compost pile is being taken care of properly, it will produce far less methane than a landfill.
Please mark brainliest
answer this pleaseeeeeee
Someone help me please :)
You are a consultant for a second ELVIS mission to NPIP. Describe what physical and/or chemical treatments you would require prior to liftoff to minimize the opportunity for contamination of the ELV (the landing module of the spacecraft) and ELVIS (a new version of the robot) by Earth microbes. Hint: Keep in mind the following: ELVIS’s skin cannot withstand temperatures above 90°C; the ELV itself is approximately the size of a minivan and includes many metal parts. Use scientific terminology as you discuss this answer: e.g., are you trying to achieve disinfection or sterilization? Are you recommending use of antiseptics or disinfectants?
Answer:
As the consultant for the second ELVIS mission, my recommendations would be as follows:
Provision of standardized materials to the best of my knowledge and practice.Production and Development of look-alike skin from the variant of Lycra.Instruction of proper exercises such that the overall effect is minimized.Explanation:
In order to provide the necessary care in the limitations of the mission, the first step is to use the first mission of ELVIS as the starting point. The steps, precautions and lessons learnt from the first mission are used as stepping stones for the second mission.
Please Help me with Question 14 and 15
Answer: 14. Kidneys. 15. D brainliest??
Explanation:
The method to determine if an event or object is older or younger by comparing the rock layers is called [BLANK] dating as it does not give an actual age in years.
Answer:
radiometric dating methods
PLEASE HELP
How do “endothermic” animals cool off?
Question 8 options:
They convert the food they eat into cool energy.
They sweat or pant to lose heat by water evaporation.
They move to colder climates.
They move around a lot to stimulate their circulation.
Answer:
B. They sweat or pant to lose heat by water evaporation.
Explanation:
nutrient deficiency symptoms of plans
Explanation:
it depends on Which nutrients the body lacks l.however,there are some general symptoms you might experience.they include l:pallor,fatigue, depression,weakness,trouble breathing,unusual food craving,hair loss, constipation,etc
How do the baby's respiration and circulation change when the baby is born? O A. The baby's blood has oxygen for the first time. B. The baby now breathes oxygen instead of carbon dioxide. C. It no longer depends on the mother for oxygen. D. The circulatory system pumps blood for the first time.
During pregnancy, the baby grows and depends on mother for food, nutrition, oxygen, etc. the baby's respiration and circulation change when the baby is born as it no longer depends on the mother for oxygen, i.e., option C.
What is the way of oxygen transport from mother to child during pregnancy?As the fetus is connected by the umbilical cord to the placenta, the organ will develops and implants in the womb during pregnancy.
Through umbilical cord having blood vessels, the baby will receives all the necessary nutrition, oxygen, and life support from the mother with the help of the placenta.
As the baby comes out, it will no longer depend on the mother for oxygen.
Thus, the correct option is C.
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24
An octopus reproduces only once in its life, but it may have more than 100,000 offspring, depending on the species. Certain
species of penguin, by contrast, have only one chick at a time.
If some species can reproduce as rapidly as the octopus (100,000
offspring every 3 or 4 years), how is it possible that a species that has only one young at a time is equally successful?
Answer:
The success of a species depends on the number of offspring that survive long enough to reproduce.
Explanation:
Study Island