In agroecosystems, farmers practice monoculture. It is a practice of growing one type of crop in the same field year after year. Monoculture is an attempt to check herbivores from eating crops. As a result population of herbivores get reduced from the food webs. Using different types of agro-chemicals such as insecticides, pesticides, weedicides also reduces number species. Therefore, the most unusual characteristic of food webs in agroecosystems is lack of biodiversity.
Agree on using one system. That way no one would be confused by the measurements and everyone would have the same calculations without having to painfully convert. Preferably the metric since it was designed to be easy
Shorten this answer as you will
Potential and kinetic energy. Most object have kinetic energy. If an object is moving it is a kinectic energy. Potential energy is an energy stored in the position or arrangement of the object.
cells in the vegetal half of the embryo should be unpigmented those in the animal half and there should be heavily pigmented.
Explanation:
The Yolk molecules moving in the vegetal halves of the egg which is the case in most of the animals, slows down the cell division. These lesser division area or the zone demarcates the area to be vegetal pole and due to lesser cell division, it becomes unpigmented or less pigmented Based on the observation time and perspect with assuming no movement.
The pole opposite to the vegetal, is animal pole which with absence or less of yolk, gets more ability to divide and hence become more pigmented or heavily pigmented. This brings polarity to the egg and becomes telolecithal egg.
Physical Factors:Physical factors that affect population distribution include altitude and latitude,relief,climate,soils,vegetation,water and location of mineral and energy resources.
