Answer:
RNA polymerases
Answer:
2nd option
Explanation:
What step of photosynthesis produces the O2?
Answer:
The chloroplast is involved in both stages of photosynthesis. The light reactions take place in the thylakoid. There, water (H2O) is oxidized, and oxygen (O2) is released. The electrons that freed from the water are transferred to ATP and NADPH.
Explanation:
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Do you guys know the answer????
Answer:
X=16
Explanation:
We would need to convert the whole number (5) into a fractIon. By doing this, we multiply 5 by 3 to get 15. We also must add in the 1 form the 1/3 in the 5, getting 16 for a total, then Adding 16 to the whole equation would be 16/3 or x=16
Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder.
Which statement correctly describes these broken pieces of the sample?
Answer:
Explanation:
Some look like a fine powder
When a rancher puts cattle in a pasture, what happens to the amount of grass in it?
Answer:
When a rancher puts cattle in a pasture, what happens to the amount of grass in it? Cows put in a pasture of fresh grass will eat it down too a point it would regrow fast.. Unless the pasture is not large enough for the number of cattle. Then they will eat it into the ground and kill it.
Explanation:
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what happens during telophase ll
SELECT THREE OPTIONS
Answer:
During telophase, nuclear membrane forms around each set of chromosomes. This separates the nuclear DNA from the cytoplasm. The chromosomes then start to uncoil becoming diffuse and less compact.
Explanation:
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Answer:
nuclear membrane forms
Explanation:
i got it right
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Cells that can differentiate into a variety of cell types are called _____
Answer:
pluripotent
Explanation:
A cell that can differentiate into all cell types of the adult organism are called
"pluripotent". Like cells are named meristematic cells in higher plants and embryonic stem cells in animals, though some groups report the presence of adult pluripotent cells.
Mixture is the combination of some elements or compound that is formed( )
Answer:
....by physical combination.
Explanation:
.....
Answer:
Mixtures are physical combinations of two or more elements and/or compounds. Mixtures can be classified as homogeneous or heterogeneous. Elements and compounds are both examples of pure substances. Compounds are substances that are made up of more than one type of atom.
Explanation:
Why is the nucleus considered the command center of the cell?
Answer:
A
Explanation:
Analyze: Cellular respiration involves two phases. The anaerobic phase does not involve oxygen, while the aerobic phase does. Where does each phase take place?
Answer:
The anerobic part takes place in the fluid part of the cytoplasm while the aerobic part takes place in the mitochondria
Explanation:
Part D)
Think about pushing two boxes of different weights across the floor-one box is a lot heavier than the other box. How will the amount of force change as you push each box? Explain how this relates to energy expenditure of two people-one person who's heavler than the other.
This is on plato and edmentrum. :)
Answer:
More force is needed to push the heavier box. Likewise, people who weigh more use more energy to move their bodies than people who weigh less.
Explanation:
copied directly from edmentum/plato
Answer:
More force is needed to push the heavier box. Likewise, people who weigh more use more energy to move their bodies than people who weigh less.
Explanation:
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10. Which respiratory condition below correctly describes what happens during pneumonia? A. The alveoli become damaged and enlarged . O B. The airways become swollen and inflamed . C. The alveoli in the lungs fill with fluid. D. The airways restrict in response to an invader.
Answer:
the alveoli in the lungs fill with fluid
Early civilizations made pottery as functional and decoritave objects.they used geometric and free flowing designs.what design was especially important in ancient pottery? A) circle B) square C) spiral D triangle if this gets annoying sorry dudes and dudettes
Answer:
most potteries were Circular, Such as in Egypt they had slavery, but it wasn't like European slavery. They would grow their farms to provide for their families. one main way was to carry water back for their crops in circular plates and vases.
You could say Egyptian slavery wasn't slavery. it was mainly just everyone fending on their source of crops. And everyone could sell their crops for more produce.
Explanation:
Answer choice: Circle
About what percentage of the land area of South America has a growing season of over 240 days?
Answer:
75%
Explanation:
Answer:
75% of the land area in South America has a growing season of over 240 days.
Explanation:
What happened when there was not enough carbon dioxide in the atmosphere to trap the sun's heat about 600 mya?
Answer:
Decreased Temperatures
Explanation:
Because carbon dioxide traps heat in the atmosphere, a lessening of atmospheric carbon dioxide concentrations would mean that more heat could escape into space. This would result in a net decrease in the Earth's average temperature, assuming other factors remain the same.
Explain how different TYPES OF ORGANISMS defend themselves against microorganisms. (6 marks)
How do oxygen and carbon dioxide levels take over time
In the capillaries, oxygen flows rapidly through the blood through this air-blood barrier. Similarly, carbon dioxide flows into the alveoli from the blood and is then exhaled.
Answer:
Oxygen flows quickly through the blood through an air-blood barrier. Likewise, carbon dioxide flows into the alveoli from the blood and is then exhaled.
Explanation:
photosynthesis provide food and oxygen to all the living organism Is this true or False ???
Answer:
True
I hope this helps!
A hand sanitizer was advertised to be more effective at killing bacteria than any antibacterial soap. Students were split evenly into 4 groups to test this claim. Groups 1-3 washed their hands using the assigned hand sanitizer or soap (see table) and warm water for two minutes, and then dried their hands with a paper towel. Group 4 rubbed their hands vigorously for 2 minutes in warm water, without any soap or sanitizer, and then dried their hands with a paper towel. After washing, each student’s hands were swabbed and the swab was applied to a culture plate and incubated. Finally, the bacterial cultures were counted. what is the independent variable?
Answer:
Group 4
Explanation:
The control group in this case would be those students in group 4.
The control group during an experiment is a group that does not receive the treatment administered to other groups and as such used as a standard for measuring the effects of the treatment on other groups. Whatever differences that exist between the control group and the various treatment groups is attributed to be as a result of the treatment administered to the groups.
In this case, group 4 only used warm water for washing their hands instead of the hand sanitizer/soap used by the other groups. Whatever differences found out in the bacterial count in their respective culture swabs can be attributed to the effects of the hand sanitizer/soap.
Which of the following is the function of plant leaves ?
A. Erecting the plant above the ground
B. Providing the attachment of climber plants
C. Absorbing water and mineral from the soil
D. Involves in the process of photosynthesis.
what are the similarities between the first quarter moon and the third quarter moon
Answer:
what are the answer choices
Would you say cells, bacteria, algae, plants, or animals are the basic units of life? Explain why you think so.
Human organisms, like the female pictured here, are composed of a variety of organ systems. Regardless of the organ system, certain
components remain constant. They are
es )
A)
tissues and organs.
B)
cells, tissues, and organs.
atoms, cells tissues, and organs.
D)
atoms, compounds, cells, tissues, and organs.
Answer: atoms, compounds, cells, tissues, and organs.
Explanation: i did it for myself
During a murder investigation, the medical examiner tests the contents of the
victim's stomach to try to identify their last meal and establish a connection to a
suspect. The contents tested using Lugol's iodine turned a dark purple color
which indicates the presence of starch. This test indicates which of these
macromolecules was present in the victim's last meal? *
A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic Acid
Which of the following phrases describe the function of the digestive system?
l. Smooth, muscular tube connects the mouth to the stomach
ll. Muscular action in the esophagus pushed food to the stomach
lll. Structures called the microvilli to increase the surface area of the intestines
lV. Nutrients are made available to the body's cells
A. l and ll
B. ll and lll
C. ll and lV
D. lll and lV
Answer:
B. ll and lll
Explanation:
The question above is asking for the "function" of the Digestive System. Function refers to how the digestive system actually works.
I is not related to the function of the digestive system. It only describes the "esophagus."
II is called the "Peristalsis." This is one of the functions of the digestive system. This allows the food to move down the GI tract.
III is part of the process called "Segmentation." This is one of the functions of the digestive system. The increase surface area of the microvilli expands 25 times and this allows greater absorption of food.
IV is not related to the function of the digestive system.
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Answer:
.1 goes with pic 4 .2 goes with pic 5 .3 goes with pic 4 4. goes with pic .1
and .5 goes with pic 2
Explanation:
explain why the suspension of isolated chloroplasts became alkaline when illuminated?
Answer:
Yes, protons are pumped across the membrane, but flow right back again through the ATP synthase. More important is that illumination is required for carbon fixation. As photosynthesis runs, the chloroplasts remove CO2 from the water they are suspended in. In solution, CO2 forms carbonic acid, so removing CO2 will reduce the level of carbonic acid, raising the pH.
Explanation:
Chloroplasts are the primary cell organelles involved in the conversion of light energy into stable chemical energy through photosynthesis. The chloroplasts will become alkaline due to a rise in pH and a reduction in carbon dioxide.
Chloroplast is the green-colored cell organelle, primarily involved in the conversion of light energy into chemical energy.
When the isolated chloroplasts are illuminated, the suspension in which chloroplasts are suspended becomes alkaline. It is assumed that protons are pumped in from the medium to the thylakoids.
As photosynthesis takes place, the chloroplasts remove carbon dioxide from the suspension, which causes an increase in the pH of the suspension.
Therefore, the formation of carbonic acid from the CO2 will raise the pH.
To know more about the chloroplasts, refer to the following link:
https://brainly.com/question/9328266
How do the three types of distribution differ from one another?
Explanation:
direct channel allows the consumer to make purchases from the manufacturer while an indirect channel allows the consumer to buy the goods from a wholesaler or retailer. Indirect channels are typical for goods that are sold in traditional brick-and-mortar stores.
actual gas exchange takes place in the
A)Trachea
B)Bronchi
C)Larynx
D)Alveoli
Answer:
The trachea, bronchi, and bronchioles are involved in conduction. Gas exchange takes place only in the lungs. Lung tissue consists mainly of tiny air sacs called alveoli, which is where gas exchange takes place between air in the alveoli and the blood in capillaries surrounding them.
Explanation:
actual gas takes place in alveoli
A community decides to upgrade its water purification and management system.what lasting impact could this have on available freshwater?