Part III. Direction: Match the organisms in Column A to the symbiotic relationships that they might have in an ecosystem in Column B.
Column A
Column B
1. Bees and flower
A. commensalism
2. Orchids attached on a big tree
B. competition
3. Tapeworm in human intestine
C. mutualism
4. Grasses in the backyard
D. parasitism
5. Larva of an insect lives on the leaves of a plant​

preservation because he preserves part of the land and preserves means save

explanation:

the answer to your question is sperm

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: