How do conservation tillage practices lead to agricultural sustainability? a. conservation tillage practices reduce the amount of water required to grow crops. b. conservation tillage practices reduce soil erosion and maintain soil nutrient levels. c. conservation tillage practices naturally protect crops from insect damage, reducing the need for pesticides. d. conservation tillage practices reduce the amount of energy needed to produce crops. answer asap ()

Conservation tillage can be defined as the process of conserving the soil by avoiding soil erosion. By avoiding the soil erosion, this process helps in maintaining the nutrient levels of the soils, thus, increasing the agricultural sustainability. The soil erosion removes the nutrient rich top layer of the soil which negatively impacts the agriculture. The practices of conservation tillage protects this layer of the soil, and allow the water around to enter deep in the soil.

Hence, the correct answer is 'Option B - conservation tillage practices help reduce soil erosion and maintain soil nutrient levels'.

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.

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