B is unsustainable as this is a practice of intensive farming usually conducted indoors, and is resource and energy expensive. C is unsustainable because groundwater is a limited resource and groundwater can take 1000s of years to be recharged. D is unsustainable as this involves moving water across vast distances and is expensive and ecologically damaging. A is sustainable as drought-resistant plants would in the long run use less water.
An educated guess that is aslo posed as a tentative explanation is called a hypothesis.
Answer:
<h3>Offspring receive chromosomes from their parents, each chromosome contains alleles, each allele contains genes which determine the appearance of an organism</h3>
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edlyn moreno
Leptin hormone is the hormones which appears to be designed to protect the body against weight loss.
Leptin hormone is secreted from fat cells and it helps to regulate body weight. Leptin hormone is predominantly made by adipose cell that help to regulate energy balance by inhibiting hunger. leptin hormone is opposed by the action of the ghrelin hormone which is a hunger hormone/
