1.a.In agriculture cultural control is the practice of modifying the growing environment to reduce the prevalence of unwanted pests. Examples include changing soil pH or fertility levels, irrigation practices, amount of sunlight, temperature, or the use of beneficial animals or insects.
1.b. Cultural control is using the production or utilization methods of a commodity with a concern for insect management. Cultural control practices are usually multipurpose technical procedures that create environments that either avoid high-risk situations for infestations or develop unfavorable conditions for pests.
1.c.Simplicity and low cost are the primary advantages of cultural control tactics, and disadvantages are few as long as these tactics are compatible with a farmer's other management objectives (high yields, mechanization, etc.).
Carbon cycle refers to an array of procedures by which the compounds of carbon are interconverted in the environment, comprising the inclusion of carbon dioxide into living tissue by the process of photosynthesis and then getting back into the atmosphere via respiration, the burning of fossil fuels, and the decomposition of dead organisms.
The following are the steps that illustrate how the carbon cycle functions:
1. Carbon enters the atmosphere as carbon dioxide from combustion and respiration.
2. The absorption of carbon dioxide takes place by the producers to manufacture glucose in photosynthesis.
3. The animals feed on the plant passing the carbon components through the food chain. The majority of the consumed carbon is exhaled in the form of CO2, which was produced at the time of aerobic respiration. The plants and animals die eventually.
4. The dead plants and animals get dissociated by the dead organisms and return the carbon present in their bodies back to the atmosphere as CO2 by the process of respiration. In certain occasions, the dead plant and animals get converted into fossil fuel, which is available in future for combustion.
Answer: a-Male cones are smaller than female cones.
The cones are the characteristics of the gymnosperms plant species specifically to the Conifers. These plants exhibit naked ovules and the pollination in these cones is aided by the wind pollination. The male cones are smaller than the female cones and grows on the lower branches of the trees whereas the female cones grows on the higher branches. Each bract or scale of the male cone exhibit numerous pollen grains which are blown away by the wind and they pollinate the ovules of the female cones. Each bract or scale of female cone exhibit an ovule at the lower end. Each ovule is fertilized by the pollen to form the seed.
The kidney filters about 200 quarts of blood to remove about 2 quarts of waste and excess water. That excess water and waste is sent to the bladder and leaves the body as urine.
