3: Trees are very eco friendly and they are what help us breathe natural air. They have a impact in a pro and con way. Pro, they build more stores, homes, and things we need in those spaces. Con: They are killing our fresh air and we don’t need that. The world is already going through disasters, and we are getting animals extinct.
Genetically modified can be stated as the foods which are derived from whose genetic material (DNA) has been modified in a way that does not occur naturally
<u>Explanation:</u>
<u>pros:</u>
- It takes less land for cultivation and it produces more food
- It can conserve energy soil and water resources
- It can save plants from extinction
- It will use less water
- less use of pesticides
<u>cons:</u>
- Increased rate of allergic reaction
- It can spoil or pollute the others fields and stuffs
- It creates super weeds ans super bugs
- Less nutritious
- chance for genetic changes
C is the answer..........
Protein can be reversed to make glucose so the answer is protein
The right answer is vein (it contains blood and has valves).
The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.