Which of the following best describes the features of an open system? an open system exchanges nothing with other systems. an open system exchanges only matter with another system. an open system exchanges only energy with another system. an open system exchanges matter and/or energy with another system.

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

Abnormal softening of a gland is known as

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation