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amid [387]
2 years ago
14

This scientist performed an experiment where he weighed a pot with soil and then grew a seedling in it for five years. During th

is time, he only added water to the plant. At the end of five years, he weighed the soil, and it weighed the same as it did at the beginning of his experiment. He concluded that the water he added to the tree was what gave it more mass.
Who was this scientist?
Jan van Helmont
Joseph Priestly
Jan Ingenhousz
John Woodward
Biology
1 answer:
lbvjy [14]2 years ago
6 0

Answer:

Jan van Helmont

Explanation:

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What is activation energy?
Aleks04 [339]

Answer: The activation energy is: the energy needed to get a reaction started

Explanation: this is dealing with enzymes and their reactions

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3 years ago
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DNAase is an enzyme that catalyzes the hydrolysis of the covalent bonds that join nucleotides together. What would first happen
Free_Kalibri [48]

DNAase is an enzyme that catalyzes the hydrolysis of the covalent bonds that join nucleotides together. What would first happen to DNA molecules treated with DNAase?

A) The purines would be separated from the deoxyribose sugars.

B) The pyrimidines would be separated from the deoxyribose sugars.

C) All bases would be separated from the deoxyribose sugars.

D) The two strands of the double helix would separate.

E) The phosphodiester bonds between deoxyribose sugars would be broken.

Answer:

E) The phosphodiester bonds between deoxyribose sugars would be broken.

Explanation:

The purines and pyrimidines of two DNA strands of a DNA duplex are held together by hydrogen bonds. Hydrogen bonds are not covalent bonds. The enzyme DNAase targets the phosphodiester bonds. These are the covalent bonds that join two deoxyribonucleotides of a DNA strand together. therefore, when a DNA is subjected to digestion with DNAase enzyme, the phosphodiester bonds will be broken that hold the pentose sugars of two nucleotides by a phosphate group.

6 0
3 years ago
Give 3 real world examples of “science” and “not science”
choli [55]

Answer:

Example:

Explanation:

science:                              

the water cycle                  

a volcano exploding          

a rock forming

Not science:

https://undsci.berkeley.edu/article/0_0_0/whatisscience_12

5 0
3 years ago
Galaxies moving away from us will emit light that is redder than we would otherwise expect
Alekssandra [29.7K]
This is true, for it is called redshift
3 0
3 years ago
Various factors influences the fluidity of the phospholipid bilayer of the cell membrane. If we were to chart the composition of
mote1985 [20]

Answer:

D

an increase in the length of the fatty acid tails.

Explanation:

As average annual temperatures decrease, we would expect to find phospholipids within the cell membranes of organisms to have both saturated

and unsaturated fatty acid tails. Saturated fatty acids tails are arranged linearly, in a way that maximizes interactions between the tails and

decreases bilayer fluidity. Unsaturated fatty acids, on the other hand, have more distance between the tails, fewer intermolecular interactions and

more membrane fluidity. Longer tails and decreased cholesterol also decrease fluidity

5 0
2 years ago
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