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Deffense [45]
3 years ago
15

Photosynthetic eukaryotes have genes for ribosomal RNA (rRNA) in their nuclei, mitochondria, and chloroplasts. Keeping in mind h

ow the two latter organelles were acquired in evolution, which rRNA genes, if any, are likely to have been evolutionarily derived from close relatives?
Biology
1 answer:
Vikki [24]3 years ago
8 0

Answer:

The correct answer is - nuclear rRNA, mitochondrial rRNA, and chloroplast rRNA are from distant relatives.

Explanation:

Mitochondria and chloroplast get their own genome which includes DNA and rRNA as the diverge from the prokaryotes such as bacteria and archaea which were acquired by the eukaryotes.

They brought advantages with them to the eukaryotic organism and host cells such as the ability of photosynthesis and act as the powerhouse of the cell.

Thus, the correct answer is option - nuclear rRNA, mitochondrial rRNA, and chloroplast rRNA are from distant relatives.

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2. Give ONE possible reason, biotic or abiotic, why the population decreased in 1990
klemol [59]

Answer:

availability of resources.

Explanation:

Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.

3 0
3 years ago
I really need help on this
ruslelena [56]
I think its that I'm not sure

7 0
3 years ago
What do greenhouse gases do to the warmth from the sun that is reflected back
Murrr4er [49]

Answer:

hope this helps

Explanation:

The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.

8 0
3 years ago
What tissue has lacunae, calcium salts, and blood vessels? Select one: a. fibrocartilaginous tissue b. areolar tissue c. bone (o
kipiarov [429]

Answer:

c. bone (osseous tissue)

Explanation:

The extracellular matrix of the bone tissue consists of an organic component and an inorganic component.

The organic component includes Collagen , proteoglycans and glycoprotiens, While the inorganic component contains calcium and phopsphorus. The cells are present in the lacunae situated betwen the lamellae and contain a number of oblong spaces.

It also contains blood vessels as a typical long bons is supplied by a nutrient artery , periosteal vessels and epiphyseal arteries.

Hence C is the right answer.

8 0
3 years ago
A plane is taking off of an runway. This is an example of?
Readme [11.4K]

Answer:

vrtkoff

Explanation:

The vrtkoff example represents a simplified aircraft taking-off from a runway. There are several viewpoints defined in this model, both static and attached to the plane, allowing you to see the take-off from various perspectives.

6 0
3 years ago
Read 2 more answers
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