The gradual decline in men's testosterone levels in middle age can reduce their sex drive
Answer:
Explanation:
Echinoderms are marine organisms which means they live in the ocean. They are found in all marine waters on Earth although there are few species living in the Arctic. Many echinoderms are visible on the seashore such as sand dollars, globular spiny sea urchins and asteroids.
Answer:
Thyroid hormones are sometimes present in either abnormally high or low levels in people with bipolar disorder.
Explanation:
→depression is associated with low levels of thyroid hormone
→mood elevation is associated with high levels of thyroid hormone.
furthermore; reducing the levels of high thyroid hormone in the blood stream with lithium may mitigate manic symptoms in patients of bipolar disorder,
this buttress the point that fluctuations in thyroid hormones is a causative factor
Soil
Soil is the upper layer of the ground comprising of a mixture of sand, silt, clay, loose rock fragments, and organic matter that can support the growth of rooted plants. The relative proportions of sand, silt and clay determine the texture and size of the pores of the soil, which affects its ability to allow air and water to penetrate/infiltrate.