An inadequate secretion of thyroid hormones results in which is characterized by weight gain and lethargy, while an excess of thyroid hormone secretion results in which is characterized by

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.