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love history [14]
3 years ago
5

Which of the following best describes these

Biology
1 answer:
Nikitich [7]3 years ago
8 0

Answer:B

Explanation:

Because i know it

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Evidence suggests that first, ____________ were acquired when an aerobic bacterium was engulfed by larger cells and became mutua
leonid [27]

Answer:

1. Mitochondria

2. Chloroplast

3. the formation of eukaryotic cells

4. DNA

Explanation:

The theory of endosymbiosis was proposed by the Lynn Margulis in 1967 which suggested that the eukaryotic organelles like the mitochondria and chloroplast evolved when another prokaryotic cell engulfed the prokaryotic bacteria.

The mitochondria were formed when the chemosynthetic bacteria were engulfed by the bacteria and the engulfed bacteria formed a symbiotic relationship. Similarly, the chloroplast was originated in the same way when the photosynthetic bacteria were engulfed by another prokaryote.

The evidence which supports their ar:

1. The same size of the organelles to the bacteria

2. The presence of the circular DNA of the organelles like bacteria  

3. The similarity in the 30s and 70s ribosomal subunits.

7 0
3 years ago
Read 2 more answers
Parts of some plants and animals grow according to the Fibonacci sequence of numbers developed by an Italian mathematician in wh
WARRIOR [948]

Answer:

The Fibonacci succession is the next infinite succession of natural numbers, each Fibonacci number is the sum of the two previous to it: a hurricane, the galaxies or the roses have this pattern in nature.

Explanation:

The Fibonacci spiral: an approximation of the golden spiral generated by drawing circular arcs connecting the opposite corners of the squares adjusted to the values of the succession; successively attaching squares of side 0, 1, 1, 2, 3, 5, 8, 13, 21 and 34.

5 0
3 years ago
What are the likely steps of theories and laws?
sleet_krkn [62]
Is a proposition that has not been empirically proven yet, and that attempts to describe or justify a system or phenomenon.
5 0
2 years ago
What elements has the same number of valence electrons as aluminum
Lera25 [3.4K]
Boron<span> (B), G</span>allium<span> (</span>Ga<span>), I</span>ndium<span> (In), T</span>hallium(Tl<span>)</span>
7 0
3 years ago
Mechanical energy materials
Elodia [21]

Answer:

Mechanical energy is one of the only types of energy that is easy to see. If something is moving, it is using mechanical energy! Take a look at these sources of mechanical energy that you're likely to find in the home.

- Turning a doorknob

-Breathing in and out

- Hammering a nail

-Riding a bicycle

-Sharpening a pencil

-Using kitchen appliances

-Listening to music

-Typing on a keyboard

-Driving a car

-Exercising

Explanation:

<em>Mechanical- </em>Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both.

5 0
3 years ago
Read 2 more answers
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