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Westkost [7]
1 year ago
11

Tyler wants to know how the growth of tomato plants is affected by the quantities of various gases in the atmosphere. What type

of scientific investigation should Tyler conduct in order to accurately answer his question through direct observations? A. Tyler should research tomato plants on the internet. B. Tyler should grow tomato plants in his back yard. C. Tyler should ask a professional gardener about tomato plants. D. Tyler should perform a controlled experiment.
Biology
2 answers:
monitta1 year ago
5 0
The best approach for Tyler is a controlled experiment if he wants to directly observe the outcome. 

A controlled experiment is designed to minimize the effects of the variables other than the independent variable. A controlled experiment allows reliable results because he can do the experiment specific to the problem and variables involved. 

lukranit [14]1 year ago
4 0

Answer:

The correct answer is D. Tyler should perform a controlled experiment.

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CAM photosynthesis limits CO2 fixation to nighttime hours in order to (A) allow water to enter leaf spaces during the daylight h
bixtya [17]

Answer:

(B) open stomata only at night, limiting water loss because of heat and low humidity.

Explanation:

CAM plants are found in the regions characterized by very hot and dry environmental conditions. These plants reduce the water loss through transpiration by exhibiting CAM photosynthesis.  

They open the stomata during night time when the air is cooler and rich in moisture. They take in CO2 during night time and fix it into the oxaloacetate which in turn is converted into malate and is stored in the vacuoles.  

During day time, stomata remain closed to prevent water loss and the CO2 trapped during night time (released by decarboxylation of malate) enter the Calvin cycle.

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1 year ago
Autonomic centers in the ________ exert neural control over hormone secretion by the adrenal medullae. a) pineal gland b) pituit
frez [133]

Answer:

The correct answer will be option-E

Explanation:

The autonomic nervous system or ANS activity in the brain is mainly controlled and regulated by the hypothalamus structure. The autonomic centres of the hypothalamus control the hormonal secretion adrenal medulla like adrenaline and norepinephrine.

The secretion of the hypothalamus controls the activity of the vasomotor center which help maintain the blood pressure.

Thus, option-hypothalamus is the correct answer.

3 0
2 years ago
A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work to
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I think you can choose respiration. Because
5 0
2 years ago
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Explain have a fats sugars and or starch contained in seeds or milk are useful for the plant sprouting from the seed or the baby
Kipish [7]
There is a lot of calories in fats that can be a good help and can be used for growth, fats are high energy molecules that help in growing organism. Fats produces carbon dioxide, water, and ATP when metabolism.  The sugars and or starch is useful in the same method, they provide calories necessary for a seed or baby animal to grow. The sugars used in glycolysis and then the products of glycolysis used in  the citric acid cycle, and the starch can be cleaved into more manageable sugars. 
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1 year ago
If a molecule of CO2 released into the blood in your left toe is exhaled from your nose, it must pass through all of the followi
stepladder [879]

Answer:

a) the pulmonary vein

Explanation:

  • Veins are the blood vessels that carry blood to the heart.
  • Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart.
  • There are two right pulmonary veins, known as the right superior and right inferior veins.
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  3. Drains from: lungs
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2 years ago
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