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Andrej [43]
3 years ago
15

What observation led researchers to purpose that chloroplasts evolved from Cyanobacteria

Biology
2 answers:
ArbitrLikvidat [17]3 years ago
8 0
Considering your talking about the a-d options Here is my answer
<span>A) Both produce proteins.
B) Both contain mitochondria.
C) Both provide structure to cells.
D) Both perform photosynthesis.

Answer is D</span>
devlian [24]3 years ago
8 0
Researchers were led <span>to propose that chloroplasts evolved from cyanobacteria because they observed that both of them perform photosynthesis. </span>
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The initial step in the synthesis of the hormone known as vitamin D demonstrates the interaction of multiple organ systems as in
Naddik [55]

Answer: Endocrine system

Explanation: The integumentary system is that is made up of the skin, hair, nails and the Endocrine glands. The following functions of the integumentary system are:

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c. The integumentary system helps in regulating and maintaining the body temperature

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3 0
4 years ago
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qwelly [4]

Answer:

Q2->They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.

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Explanation:

6 0
3 years ago
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hichkok12 [17]

Answer:

The invisible path the earth takes around the sun is called an orbit. all planets have orbits at varying speeds and some are even elliptical.

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7 0
4 years ago
A key part of the Watson-Crick model came when Watson realized
vaieri [72.5K]

Answer:

A–T

T–A

T–A

C–G

A–T

G–C

G–C

C–G

T–A

A–T

Explanation:

A always pairs up with T

C always pairs up with G

7 0
3 years ago
What is the main purpose of cellular respiration
djyliett [7]

Answer: The purpose of cellular respiration is simple: it provides cells with the energy they need to function.

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