Answer:
Two key adaptations they have are the ability to survive in waterlogged and anoxic (no oxygen) soil, and the ability to tolerate brackish waters. Some mangroves remove salt from brackish estuarine waters through ultra-filtration in their roots.
Answer:D
Explanation: The pulmonary air sacs of birds only permit a unidirectional flow of air through the lungs. Unidirectional flow means that air is inhale and exhale through one trachea alternatively. This means the bird lungs only receive largely fresh air which has a high oxygen content during inhalation and do not receive fresh during exhalation. While air flow bidirectional in mammals.
Answer:
B
Explanation:
The moon moves in the earth's shadow and is blocked by the earth .
Answer:
Evolution of management is the concept that was developed in the early days of men when the realization was made that we must live in groups for the survival.
Explanation:
- Since men saw and realized that they need to live in groups, mighty men in the past were able to organize the masses, share them into various groups. The sharing was done accord to the masses' strength, mental capacities and intelligence.
- The evolution of management section is mainly divided into four sections:
- Early Management Thought
- The Scientific Management Era
- The Social Person Era
- The Modern Era