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dimulka [17.4K]
2 years ago
11

1. Which word best describes a scientific hypothesis? a. provable b. theoretical c. testable d. quantifiable

Biology
2 answers:
Masja [62]2 years ago
7 0
C. Testable.  A hypothesis should always be testible
Mekhanik [1.2K]2 years ago
3 0
You have to remember that a scientific hypothesis is a question about whether or not something will happen the way you think it will.
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If the thyroid gland is unable to produce iodinated thyroglobulin, what is the effect on hormone production?
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Describe the function of each organelle. Nucleus Ribosome Endoplasmic reticulum Golgi apparatus
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Read 2 more answers
The average 70 kg (150 lb) being has 5.5 L of blood (1.05 g/mL). How many 1 oz drinks of 20% alcohol by volume (40 proof) must b
AlekseyPX

Answer:

The total blood given is 5.5 liters

Thus, total alcohol needed for BAC (blood alcohol content) to exceed 0.1 gram per 100 ml will be 0.1/100 × 5500 = 5.5 grams alcohol.

1 oz = 28.3 grams

28.3 gram water = 28.3 ml

It has 20 percent alcohol by volume,

Therefore, alcohol in one drink will be:

20/100 × 28.3

= 5.66 ml

= 5.66 × 0.79 (density of ethanol)

= 4.47 gram

Thus, no of drinks will be 5.5 g / 4.47 g = 1.2

Hence, 1.2 drinks will make the BAC to exceed 0.1 g / 100 ml in the blood.

4 0
1 year ago
In most cells, there are electrochemical gradients of many ions across the plasma membrane even though there are usually only on
devlian [24]

Answer:

The correct answer is option A, that is, cotransport proteins.

Explanation:

The variable that possesses the tendency to mediate energy based on chemical potential is termed as an electrochemical gradient. The electrochemical gradient is differentiated into two parts, that is, electrical gradient and chemical gradient. Both these forms of gradient take place over the surface of a membrane.  

The movement of the majority of the ions takes place by the phenomenon of electrochemical gradients, of which some are found on the surface of the membrane and function as electrogenic pumps. While the gradients of some of the ions are mostly accounted for by the co-transport proteins, as these proteins take part in the movement of ions or molecules through a plasma membrane that involves concentration gradient based on the kind of molecules and movement.  

5 0
1 year ago
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