Answer
ABA
Explanation:
It is believed that this mechanism, in situations of hydric stress, is controlled mainly by abscisic acid, a plant hormone known as ABA. This hormone binds to receptors in the membrane of the guard cells and promotes the entry of calcium ions (CA2+), which function as messengers when opening ionic channels. When these channels are opened, the chlorine(Cl-) and malate2- ions pass from the inside of the cell to the wall and open the K+ channels, causing the exit of this ion as well. This process causes the water to come out and the stomach closure occurs. When the ABA is released from the receiver, the ions that came out of the cytoplasm, together with the water, return to the inside of the cell, making it turgid. At this moment, the stomach opens.
Therefore, it is perceived that the ABA causes the stomatum to close, thus guaranteeing water savings. In environments with water stress, this mechanism guarantees the survival of the plant.
In addition to water stress, several factors directly affect the opening and closing of the ostyolus, such as the concentration of carbon dioxide, light, temperature and water loss. It is also worth mentioning that the stomata also open and close at circadian rhythms, that is, according to daily rhythms.
What controls the movement of materials between the inside of the cell and the outside world?
Answer:
cell membrane
Explanation:
That is the job of the cell membrane
Answer:
cell membrane
Explanation:
List 3 facts about HIV/AIDS
Answer:
Fact: HIV and AIDS are problems in the United States. ...
Fact: HIV is not the same as AIDS. ...
Fact: HIV tests are reliable. ...
Fact: HIV cannot be cured. ...
Fact: There is no vaccine to prevent HIV. ...
Fact: People with HIV should start HIV medicine right away.
Explanation:
hope it help!
What compounds are not found in a nonsilicate mineral?
Answer:
Nonsilicate minerals never contain compounds of silicon bonded to oxygen. Each type of mineral is characterized by a specific geometric arrangement of atoms, or its crystalline structure. crystal a solid whose atoms, ions, or molecules are arranged in a regular, repeating pattern.
Chromosome ____________ refers to the two chromosomes separating and moving to opposite ends of the cell.
someone help me asap lol thanks
Answer:
It is B. 1-2 seconds because of the dramatic increase in speed shown in the steep curve of the graph
What is meaning of "seedling"?
Answer: A young plant, especially one raised from se-ed and not from a cut-ting.
Explanation: done.
the process in which organisms use chemical energy to make food is called _
Answer:
Chemosynthesis
Explanation:
how does the cell membrane of a tube worm maintains a stable environment
Answer:
The cell membrane of a tubeworm is selectively permeable and they prevent minerals in the water from flowing it in the cell of tube worms. By doing this the cell membrane protects the cell from any osmotic damage. By selectively preventing these minerals it maintains the stable environment in the cell
Earth is made up of 4 main spheres. The geosphere refers to rocks, minerals, and natural landforms that make up earth's surface. What do you think makes up hydrosphere? Why is thr hydrosphere important to life on earth?
what are some components that must be present in order for bacteria to grow?
What bacteria need to grow and multiply
Food (nutrients)
Water (moisture)
Proper temperature.
Time.
Air, no air, minimal air.
Proper acidity (pH)
Salt levels.
Suppose you buy apples from a store. Why would apples you take home with you be redder and
crunchier on average than all the apples at the store?
Answer:
Apple's are may be fresh. and the apple's in store always denudation of the dark.
Explanation:
Explain the Meaning
What is an heart
Your heart is an extremely important organ. It's a muscle that circulates blood throughout your body. Your heart pumps blood into your body, providing it with the oxygen and nutrition it requires to function. Your heart weighs between 300 and 450 g and is about the size of a clenched hand.
why do people help save the world from hacking hacking helps u code
Answer:
Yes, It may help code, but when people hack, valuable and private information may be revealed to the hacker which can be very unsafe. Therefore people try to stop it.
Explanation:
This doesnt explain all reasons but this is the one I know.
two things needed to produce electricity:
1.
2.
# 1 A supply of electric charges (electrons)
# 2 Pathway for charges to pass through
A necropsy (post-mortem analysis) of a marine sea star that died after it was mistakenly placed in fresh water would likely show that it died because:____.
a. it was so hyperosmotic to the fresh water that it could not osmoregulate.
it was stressed and needed more time to acclimate to the new conditions.
it had an immediate movement of water out of its cells after being placed in fresh water.
its kidneys could not handle the change in ionic content presented by the fresh water.
Answer:
A - I hope this helps :)
Explanation:
It could not maintain that balance that would be required in the new conditions.
Someone please help!!
Which of the following most accurately explains the greenhouse effect?
Short light waves enter the atmosphere, are reflected, and the waves get longer.
These long waves are trapped by the atmosphere.
Long light waves enter the atmosphere, are reflected by the earth's surface, and
waves shorten. These short waves are trapped by the atmosphere.
Long light waves enter the atmosphere and become trapped.
Incoming solar radiation is trapped in the upper atmosphere and then heats the
layers below
Answer: To what I understand about Global Climate. I think that *B* is the correct answer. I hope this helped you, if not my apologies!
make a poster illustrating the advantages and disadvantages of using geothermal power plant. Explain your work.
Explanation:
Advantages and Disadvantages of Geothermal Energy: Geothermal Energy is a source of energy that is sustainable and renewable and still majorly untapped. As a resource that is environmentally friendly, it has the potential of meeting the cooling, heating, and electricity demands of the future. There are a number of pros of geothermal energy but on the other hand, some challenges that have to be overcome for fully exploiting this natural resource.
Glucose
Glycolysis
Pyruvate
Oxygen present
No oxygen
Krebs cycle
Fermentation
2 ATP
Electron
transport chain
30 ATP
Why is lactic acid fermentation less efficient for producing energy than aerobic
cellular respiration is?
Answer:
because the breaking down of glucose in the body passes through several pathways . Before it can produce energy
Compare taiga forests to temperate broadleaf forests. Which of the following are true? (Select all that apply.)
A. Taiga forests receive more rainfall than temperate broadleaf forests.
B. Taiga forests receive less rainfall than temperate broadleaf forests.
C. Taiga forests are warmer than temperate broadleaf forests.
D. Taiga forests are colder than temperate broadleaf forests.
Answer:
Taiga forests receive less rainfall than temperate broadleaf forests and Taiga forest are colder than temperate broadleaf forests.
Explanation:
Answer B and D for b is because taiga forests are in the cold regions and for B a lot of precipitation.
WILL GIVE BRAINLIEST!!!!!!
Yeast is a fungus which grows inside humans digestive and reproductive track. When the yeast is in normal limits it helps to keep the bacteria living in humans in balance. A balanced human maintains homeostasis and is healthy.
What is the relationship between yeast and humans?
Answer:
I would think mutualism.
Explanation:
Because the yeast is provided a place to grow, and the human is benefitted by the yeast helping to keep balance.
People with free earlobes don't have any advantages or disadvantages compared to people with attached earlobes. This is an example of a ____________ mutation.
A. beneficial
B. harmful
C. neutral
Answer:
This is an example of a neutral mutation.
Explanation:
Nothing is wrong with having one or the other; it does not make anyone super human.
I hope I am right. I would not want you with the wrong answer.
A construction company is building a new shopping mall. Following is an excerpt from their letter to the mayor about the new project. Identify the sentence that represents a preventive action to limit mass movement on the construction site. The site of the mall is within the city limits, near the base of a mountain. It is 1. 75 miles from a fracking site. An interstate highway will be carved out of the mountain and will pass over a pond. The excavation will place parts of the mall’s foundation approximately 2 inches below the water table line. A construction company has been called in to divert all excess water flowing into the pond to an unused natural reserve 800 feet away. The construction company is using the most technologically advanced methods.
Answer:
A construction company has been called in to divert all excess water flowing into the pond to an unused natural reserve 800 feet away.
Explanation:
The sentence clearly shows a preventive action to limit mass movement on the construction site.
Excess water significantly will make the soil saturated and saturated soil is prone to movement. That is, the company's action diverting excess water is definitely a preventive action to limit mass movement in the construction site.
Answer:
See below
Explanation:
A laboratory cat could be made to twitch its whiskers by direct stimulation of a region within the ________ lobes of its cerebral cortex.
Answer:
frontal
Explanation:
What type of rock does not allow water pass through?
Answer:
impermeable
Explanation:
Answer:
Rocks that will not let water pass through them are called 'impermeable' like mudstone and granite.
Which structure of the oral cavity is composed of skeletal muscle?.
The tongue is the structure which has skeletal muscle present.
What is Skeletal muscle?They are usually attached to the bone and are responsible for wide range of movements and functions.
The movement is usually voluntary and the tongue which is found in the oral cavity possesses all the features mentioned above thereby making it the most appropriate choice.
Read more about Skeletal muscle here https://brainly.com/question/24655445
During pinocytosis, the cell takes in liquids
a. True
b. False
Answer:
ture
Explanation:
Someone help I only need the answers of part a,b,and c!!!!!!
what lakes are connected to the Cape Fear river basin??
Answer:
It is formed at Haywood, near the county line between Lee and Chatham counties, by the confluence of the Deep and Haw rivers just below Jordan Lake. It flows southeast past Lillington, Fayetteville, and Elizabethtown, then receives the Black River approximately 10 miles (16 km) northwest of Wilmington.
Explanation:
Answer and explanation:
Cape Fear River is formed in central North Carolina at the Chatham-Lee County line by the convergence of the Deep and Haw Rivers, flowing southeast and touching parts of Harnett, Cumberland, Bladen, Columbus, Pender, Brunswick, and New Hanover Counties before emptying into the Atlantic Ocean at Cape Fear (part of Bald ...)
Currently, about 35 percent of streams in the Cape Fear basin are impaired, 18 percent are polluted, and 27 percent of estuaries are use-impaired. Those problems are due to reduced water quality caused by the presence of “non-water” contaminants in concentrations higher than are considered safe.
Equesion that represents the process of photosynthesis
Answer:
The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
Explanation:
A tissue through which gases are exchanged between the blood and the air in the lungs.
a) stratified squamous epithelium
b) simple squamous epithelium
c) simple culumnar epithelium
d) simple cuboidal epithelium
Answer:
B- simple squamous epithelium.
Explanation:
Alveoli consists of simple squamous epithelium which is the main site for gas exchange. Thus, the correct option is B.
Gas exchange through the process of pulmonary respiration takes place in the alveoli (singular alveolus) of the lungs.
Alveolus is made up of two types of cells - type I and type II alveolar cells.
Type I alveolar cells are simple squamous epithelial cells supported by a thin elastic basement membrane. These cells form a continuous lining of the alveolar membrane and are the main sites for gas exchange.
Type II alveolar cells are septal cells that are present in between the type I cells. They secrete a fluid to keep the surface between the cells moist and it also contain surfactants for reducing the surface tension and preventing the collapse of alveolus.
Learn more about alveolus in:
https://brainly.com/question/31711784
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