Explanation:

- Segment A "of many sorts show" seems to need a subject, making it more likely to come later in the sequence.

- Segment B "both plants and animals" introduces subjects suitable for starting the sentence.

- Segment C "growth habits and even modes" sounds like it's describing something, potentially coming after a subject.

- Segment D "remarkable changes in form," logically follows something showing or demonstrating these changes.

- Segment E "of reproduction to adapt to changing environment" seems to complete a thought started earlier.

Options Explained:

1. BADCE: Begins with introducing plants and animals and correctly follows through their growth habits and changes.

- Both plants and animals (B)

- Show (A)

- Remarkable changes in form, growth habits and even modes (D & C)

- Of reproduction to adapt to changing environment (E)

2. ABCED: Does not introduce the subject strongly at the start.

3. CAEDB: Jumbles the logical sequence.

4. BDCEA: Begins correctly but jumbles the changes and reproduction parts.

5. CAEBD: Begins mid-thought and scatters logical connections.

Correct Answer: Option 1 - BADCE