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ikadub [295]
3 years ago
10

What bacteria was the first one on the Earth?

Biology
2 answers:
Alina [70]3 years ago
7 0

Answer:

anaerobic heterotrophic bacteria

vredina [299]3 years ago
4 0

Explanation:

Cyanobacteria, also known as blue-green algae, started out on Earth quite a while ago. Possible fossil examples have been found in rocks that are around 3500 million years old, in Western Australia. and make me brainlist

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When vesicles of the cardiac sarcoplasmic reticulum (CSR) are incubated with ATP Mg^2+ and Ca^2+, they take up Ca^2+ and reach a
abruzzese [7]

Answer

I added 4 and 5 as an attachment due to time constraint.

Explanation:

1. at a steady state ca2+ taken by vesicle = 40n/mol

enclosed volume of CSR = 5μ/mg

concentration of ca2+ in vesicle =

40*10⁻⁶/5x10⁻⁶

= 0.008

= 8x10⁻⁹mol/L

2. radius of circle =75nM

volume = 150nm

volume of vesicle = 4/3 x pi x r³

= 1.33 x 3.14 x (75x10⁻⁹)³

= 1.77 x 10⁻²¹

when we convert this we get

1.77x10⁻¹⁸L since 1m³ is equal to 100oL

surface area =4x3.14x(75x10⁻⁹)²

= 12.56x5.625⁻¹⁵

= 7.065x10⁻¹⁴m²

this is 7.065x10⁻¹⁰cm²

3. number of vesicle/CSR

= 5x10⁻⁶/1.77x10⁻¹⁸

= 2.824x10¹²

surface are = 2.824x10¹² x7.06x10⁻¹⁰

= 19.95x10²

8 0
3 years ago
Explain what it means when we say that a nation is an imagined community, and give an example
tester [92]

An imagined community is a concept developed by Benedict Anderson in his 1983 book Imagined Communities, to analyze nationalism. Anderson depicts a nation as a socially constructed community, imagined by the people who perceive themselves as part of that group.

7 0
3 years ago
Whic
Elenna [48]

Answer:

This is called replication.Generally, in an experimental set up experimental findings needed to be repeated continuously until a reasonable similar conclusion is reached.

Scientists needed to carry out similar experimental findings to get a similar results, to arrive at a reasonable conclusion.

It is  the stage that is  important for them to check the results arrived at.Replication therefore helps to identify any variability in the experimental results,for accurate results.

Explanation:

5 0
3 years ago
If a bug has 10 chromosomes in his body cell. Why will his cells have 10 chromosomes after MITOSIS?
max2010maxim [7]
Would have 20 chromosomes
8 0
3 years ago
In an atom, why are electrons in different places and not together?
damaskus [11]
Because the charge of electrons is opposite in sign than protons, the two types of particles attract each other, and this force, known as the Coulomb force, holds the atom together. Electrons travel around the nucleus in orbitals, but it is impossible to know both the speed and location of an electron at the same time.:) let me know if this helped
8 0
3 years ago
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