What intermolecular force is responsible for holding the two strands of a dna double helix together?

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root

Support mangrove trees out of the water. a) pneumatophores b) prop roots c) sand dunes d) tide supports

Humans have to eat food to get the nutrients that keep us alive, but plants use the sun to power photosynthesis