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Svetach [21]
3 years ago
8

PLEASE HELP ASAP!!!! CORRECT ANSWERS ONLY PLEASE!!!!

Biology
1 answer:
olganol [36]3 years ago
8 0
The answer to this is the last option i think
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What is the difference between a control and a variable?
Alla [95]
N an experiment the "control" is the group of people or object this is used to measure the effect of the variable. The "control" is the thing that does not change and is not the thing in question.

In an experiment the "variable" is the thing which is changed and manipulated by the experimenter. It is the effect of something,

Example: You want to test a drug. you get a group of 40 people. 20 people are given the pill, 20 people are not given the pill but a sugar pill. the people who have the pill is the "variable" and the people who dont have the pill is the "control".
3 0
3 years ago
During the process of photosynthesis which of the following is being created by producers
Kay [80]

Answer: C.Food

Explanation: In the process of photosynthesis, the chloroplasts in the cell make the food- sugar/glucose-. they do this by collecting the sunlight, water, and carbon dioxide, making the food. Any food they don't end up using is then converted to oxygen.

6 0
3 years ago
A client has inhaled, drawing air into the oropharynx. from this location, air will:
Rufina [12.5K]
The answer to this question would be: <span>proceed through the trachea, bronchi, and then bronchioles.

After going pass the oropharynx the air will be going to trachea, </span>bronchi, bronchioles and will end in the alveolus. In alveolus, the oxygen from the air will diffuse to the blood while carbon dioxide will diffuse to the alveolus. The carbon dioxide is going out of the lungs when doing expiration.
5 0
3 years ago
Two test tubes are filled with a solution of bromthymol blue. A student exhales through a straw into each tube, and the bromthym
AlekseyPX

Explanation:

The plant is utilizing CO2 in photosynthesis

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Bromothymol blue, an acid indicator, goes from blue to yellow when reacting with acid. The color change in sunlight  confirmed the use of CO2, dissolved within the solution as carbonic acid- its removal from the solution makes the more basic, and the solution goes from yellow (acidic) to blue (alkaline).

CO2 + H2O ↔ H2CO3

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released.

Occuring in several complex steps, photosynthesis is a rate limited reaction, it depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally,

  • water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain.
  • This occurs in the thykaloids, where pigment molecules like chlorophyll reside.
  • Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate( through the process of glycoysis). The electron transport chain, in which oxygen functions as the terminal electron acceptor occurs in both plants and animals.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

5 0
3 years ago
After mitosis, how many chromosomes do the new cells have compared to the original?
irakobra [83]

Answer:

The same

Explanation:

In mitosis, genetically identical daughter cells are created. In meiosis the number of chromosomes is half as many as the original cell

6 0
3 years ago
Read 2 more answers
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