Answer:
Explanation:
En México se encuentran vario corredores biológicos por ejemplo el Corredor biológico Mesoamericano en los que se encuentran los estados de Chiapas, Quintana Roo, Yucatán, Campeche, Tabasco y Oaxaca.E
Answer:Valves stop blood flowing backwards
Explanation: Valve are flags of tissue that control the direction of the blood in our heart.,it prevent the backwards flow of blood. valves regulate blood from flowing back into the atria.The right and left atrio-ventricular valves prevent blood from flowing backwards into atria. When the ventricle is full,the valve prevent backwards flow of blood.
Answer:
Skeletal System
Explanation:
Skeletal system is the system that consists of bones, cartilage and the ligaments that hold bones together.
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<h3>~AH1807</h3>
Answer:
Conservation tillage.
Explanation:
Tillage refers to agricultural methods that is practiced before growing crops it could be by digging, overturning , ploughing e.t.c.
Conservation tillage is a type of tillage that involve practices which leave the soil undisturbed. It could either be no till I .e the soil is not disturbed at all or mulch uses the chisel to till the soil before planting and ridge till in which the the seeds are planted on a seed beds. This type of tillage conserve the soil by reducing erosion.
Erosion bring about removal of soil tip layer, washing away of nutrients which is important for plants growth. Through conservation tillage soil structure and nutrients are preserved and sustained.
