What causes the stoma to open?
A. When the guard cells are full of water, they become stiff and hold
the pore open.
B. When the guard cells get covered in wax, they become limp and
the pore opens
C. When the guard cells are empty, they become limp and the pore
opens.
D. When the guard cells inflate with oxygen, they become stiff and
the pore opens.
A. When the guard cells are full of water, they become stiff and hold
the pore open.
Two guard cells make up the stomata. The walls of these cells are thicker on the inside than they are on the outside. Stomata open when they take in water and close when they lose water due to the unequal thickness of the paired guard cells.When stomata open, they release water vapor and other gases into the atmosphere, including oxygen.A. When the guard cells are full of water, stoma become stiff and hold the pore openFor more information:
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Plants exchange carbon dioxide, water, and oxygen with their surrounding environment through openings in their called O A. leaves, stomata B. stems, sori OC leaves, xylem D. roots, guard cells
8. The central Dogma of Biology states:
a. DNA proteins ORNA
b. RNA O Proteins DNA
c. DNA RNA proteins
d. DNAO RNA mRNA
Answer:
Answer is C.
Explanation:
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What role have nitrates and phosphates played in damaging Muddy Creek?
Answer:
Nitrates and phosphates lead to eutrophication and anoxia in the creek which caused aquatic animals to die and damaged the creek.
Explanation:
Nitrates (NO3-) are chemical compounds that contain nitrogen and oxygen molecules. They are salts that are commonly found in fertilizers and are soluble in water. Phosphates are also compounds that are used in agricultural processes.
Nitrates and phosphate found in water are usually from plants that have been washed off by rain water and also from vehicles' exhaust.
When there are abnormally high levels of nitrates and phosphates in water, it becomes difficult for aquatic animals to survive. In bodies of water, the nitrates and phosphates become sources of food to algae and other plants, this causes them to become over stimulated, and lead to Eutrophication (a high concentration of nutrients) and Anoxia (lack of oxygen).
This causes the fishes to run out of oxygen and die. Then the water begins to change color (milky white or green), give off an offensive odor and gradually turns into a swamp and eventually a meadow
Describe the difference between codominance and incomplete dominance. Give 1 example of each.
How much water would have to be displaced for the Lucia to float?
List the ways how you can help make your commumity safe and healthy.
1.
2.
3.
4.
5.
Will give brainliest
Summarize sexual reproduction in plants. I need help please!!
Answer:
Plant reproduction is the development of new offspring that can be achieved through sexual or asexual reproduction in plants. By the fusion of gametes, sexual reproduction creates embryos, resulting in offspring genetically distinct from the parent or parents. Asexual reproduction creates new individuals, genetically similar to the parent plants, without the fusion of gametes.
Explanation:
Which of the following is NOT a cartilage we find in the body?
Dense cartilage
Hyaline cartilage
Fibrocartilage
Elastie cartilage
4. A student described a wetland ecosystem in the chart below.
Wetland Ecosystem
Abiotic Factors
Description
Water Depth
Shallow
Salinity
Fresh water
Soil
Very wet mud
Sunlight
Sunlight filtered through
trees
What type of ecosystem was the student most likely describing?
A. Marsh
B. Swamp
Forest
D. Estuary
Answer:
Boys preparing for the chinese civil sevice examination had to memorize Confusian texts before learning what they meant. Teaching now downplays such memorization. Is there any educational value for students to memorize poems, texts, etc?
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