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pishuonlain [190]
3 years ago
7

From what did people once believe the suns energy comes?

Biology
1 answer:
ollegr [7]3 years ago
5 0

Answer:

The answer is fire. People thought the sun's energy came from fire.

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The light- ____ reactions occur in thylapidary membranes?
Papessa [141]
I think it's light dependent and the light independent take place outside the thylakoid membranes. 
6 0
3 years ago
A student builds a model of a DNA strand.
insens350 [35]

Answer:

There is no attachment to this question, however, the base sequence on the model built by the student is: CAGCCATC

The options of the bases on the complementary model are:

A) CTACCGAC

B) GUCGGUAG

C) GTCGGAAG

D) GTCGGTAG

The answer is D

Explanation:

A DNA molecule is a polymer biomolecule made up of nucleotide bases. It is a double stranded molecule, with each strand containing nucleotides held together by hydrogen bonds. The pairing of nucleotides in one strand of DNA to another follows the COMPLEMENTARY BASE PAIRING RULE, which states that Adenine binds to Thymine (A-T) while Guanine binds to Cytosine (G-C).

According to this question, a student builds a model containing the base sequence: CAGCCATC, the model that contains bases that are complementary to the ones built by the student is: GTCGGTAG

4 0
3 years ago
Read 2 more answers
When a singly ionized potassium ion moves through a channel in the membrane passing from the outside to the inside, what is the
Korolek [52]

The magnitude of the work done by the electric field of the membrane is <u>W = 1.28 × 10⁻²⁰ Joules</u>.

We start with the necessity to take into account a value for the voltage present there in order to solve this problem by first considering that the membranes have two layers, one internal and one external, each responsible for producing a potential difference between the two levels.

As a result, in order to find a solution, it is necessary to take into account the potential difference between the two surfaces. In this instance, we'll assume a particular value for the load, but the recipient is free to substitute a different value if they prefer.

The product of the potential difference and the charge is used to define the work that an electric field performs. The charge of the potassium ion will be equal to that of its electron, so,

q = 1.6 × 10⁻¹⁹ Coulombs

Then the Work would be:

W = Vq

Here,

v = Potential difference

q = Charge

The 80mV potential difference we will have is quantified as follows:

W = (80mV (1V/1000mV))( 1.6 × 10⁻¹⁹ C)

W = 1.28 × 10⁻²⁰ Joules is the amount of work that the membrane's electric field has produced.

Find more on work done at : brainly.com/question/25573309

#SPJ4

5 0
1 year ago
Which list shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to t
insens350 [35]
The correct answers c
6 0
3 years ago
Read 2 more answers
Which of the following is not an example of severe weather?
IrinaVladis [17]

Answer:

thunderstorm

Explanation:

no major damage, or severe flooding involved. just a heavier rain storm with possible lighting/thunder.

6 0
3 years ago
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