Q) 它们是归于下列哪一类?
.....A) 杂食动物
.....B) 肉食动物
.....C) 水生动物
.....D) 冷血动物
.....B) 肉食动物
.....C) 水生动物
.....D) 冷血动物
nOtE :
海豚都是肉食性动物,通常以鱼及乌贼为食。
海豚都是肉食性动物,通常以鱼及乌贼为食。
3) State the specific characteristic of plant A to protect it from strong winds?
.....Plant A has leaves that are separated so that do not break easily.
3) Identity the following variables.
....i) The manipulated variable: The position of the water
....ii) The responding variable: The growth of the roots after three weeks
4) How does the manipulated variable affect the responding variable?
.....The roots grow towards water