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.
The red blood cell lives for up to about 120 days.
Answer:
The relationship controls the population size of both species.
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Explanation:
A predator-prey relationship tends to keep the populations of both species in balance. This is shown by the graph in Figure below. As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well.
Answer is A all living things need to go through the photosynthesis cycle and need oxygen to sustain life
Answer:
Bacteria has prokaryotic cells i. e. no true nucleus or membrane around the nucleus. They lack mitochondria, ribosome, lysosomes, endoplasmic reticulum, golgi bodies and cell wall.
Explanation:
Prokaryotes are the organisms which have no true nucleus while eukaryotes have true nucleus. True nucleus means that the membrane is present around the nucleus. Many organelles are also absent in prokaryotic cell which are present in eukaryotic cells.
