How does estrogen affect endometrium?

How does estrogen affect endometrium? The endometrium changes throughout the menstrual cycle in response to hormones. During the first part of the cycle, the hormone estrogen is made by the ovaries. Estrogen causes the lining to grow and thicken to prepare the uterus for pregnancy. What causes the endometrium to thicken and become vascular and […]

Is a GMC truck better than a Chevy?

Is a GMC truck better than a Chevy? GMC trucks, thanks to GMC’s focus on utility vehicles like pickups and SUVs, are higher quality and better equipped than standard Chevys. GMC trucks are targeted toward professionals more than Chevy trucks are. Chevy trucks appeal more to mass market buyers and recreational pickup drivers. Which is […]

Do dragonflies survive winter?

Do dragonflies survive winter? Overwintering as Nymphs. Not many insects are active in the winter, but the nymphs of dragonflies, mayflies and stoneflies live in waters of ponds and streams, often beneath ice. They feed actively and grow all winter to emerge as adults in early spring. What happens to dragonflies during winter? Some dragonflies […]

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