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lana [24]
3 years ago
8

Help fast

Biology
2 answers:
WITCHER [35]3 years ago
6 0

Answer:B.

an organism's cells and systems

Explanation:

tamaranim1 [39]3 years ago
3 0

Answer:b

Explanation:

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Which of the following is a correct statement about sugar movemetn in phloem?
Simora [160]

Answer:

a. movement can occur both upward and downward in the plant

Explanation:

The phloem loading causes the accumulation of sugars in the sieved elements generating a negative solute potential (quedas), with a drop in water potential (ψw), so water enters the sieved elements increasing the turgor pressure (ψp). With the discharge of phloem in the drain occurs lower concentration of sugars in the screened elements, increases the solute potential, becoming positive, thus the phloem water potential increases and thus the water leaves the conducting vessel. In the specific case of sugar movement in the phloem, it can be stated that this movement can occur both up and down in the plant.

7 0
3 years ago
One end of the rope is vibrated to produce a wave with a wavelength of 0.25 m. The
evablogger [386]

Answer:

3) 0.75m/s

Explanation:

The wavelength of a wave is calculated using the formula;

λ = v/f

Where!

λ = wavelength of wave (m)

v = velocity or speed (m/s)

f = frequency of wave (Hz)

According to this question, one end of a rope is vibrated to produce a wave with a wavelength (λ) of 0.25 m and frequency (f) of 3.0 Hz.

Using λ = v/f

v = λ × f

v = 0.25 × 3

v = 0.75m/s.

5 0
3 years ago
A patient in hospital has a temperature of 39.8°C. A healthy person’s temperature is 37.9°C. How many degrees above this is the
Stella [2.4K]

Answer:

1.9

Explanation:

you should subtract the temperature of the patient with the temperature of the healthy person

8 0
2 years ago
Briefly describe why all burners must be turned off before any developing chambers are prepared
suter [353]
<span>The burners must be turned off because, in the case of liquid chromatography, the eluant solvents being used are flammable. Leaving the burners lit could cause the eluant to catch on fire, putting the scientist at risk.</span>
3 0
3 years ago
Three days ago yesterday was the day before tuesday. what day will it be tomorrow
Katyanochek1 [597]
I think It Would Be Monday Be It's The Day Before Tuesday
3 0
3 years ago
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