AP BIOLOGY

Detailed explanation-1: -Expert-Verified Answer. Explanation: Water and minerals are absorbed from soil by root hairs which are unicellular elongations from root tip. Xylem helps in water, minerals conduction in a unidirectional manner from roots to leaves, stem .

Detailed explanation-2: -Secondary succession occurs opposite to the process of primary succession. It starts after the processes like forest fire, hurricane, etc which reduces the established ecosystem.

Detailed explanation-3: -In the ecological succession the biomass overall decreases. There are two main types of succession, primary and secondary. So the correct option is ‘Species diversity, biomass increases’.

Detailed explanation-4: -Correct answer: Explanation: Primary succession occurs in an environment without previous life, or a barren habitat. Secondary succession occurs in an area that had previously been inhabited but experienced a disturbance, such as a lava flow.

Detailed explanation-5: -Ecological succession is directional, therefore a predictable process.