Heat/melting and pressure.
The study of plants is called botany. There are different types of plants in the living being and these are algae, bryophytes, pteridophytes, gymnosperm, and angiosperm.
The correct answer is mentioned as follows:-
<h3>GYMNOSPERM</h3>
- The less developed plant which does not bear flowers and has covered less seed is called gymnosperm.
According to the question, the diagram is not mentioned in the question hence we can not able to tell the characteristics of the area marked as X. The plants do not look like palm trees.
Hence, provide it with the diagram for better assessment.
For more information about the Gymnosperm, refer to the link:-
brainly.com/question/12985618
Answer:
1. hydrogen; 2
2. it means two strands of DNA twisted around each other like a winding staircase
