In land plants we have separation of work, the root system anchors and absorbs the water, the shoot system makes energy and makes seeds.( )
举一反三
- ______ injuries makes additional safety measures necessary. Climbers will usually work in pairs and use a system of ropes and anchors
- ______ injuries<br/>makes additional safetymeasures necessary.<br/>Climbers will usually workin pairs and use a<br/>system of ropes and anchors Climbers will usually workin pairs and use a<br/>system of ropes and anchors
- The operating system makes your machine easier to use.
- What are the main components of garden? A: Terrace B: Water system C: Plants D: Architecture
- A gas system absorbs 200J of heat and simultaneously does 300J work on surroundings at a given temperature, what is △U in joules for the gas system? A: +100 B: -200 C: +200 D: -100