<span> </span>During
the follicular phase, granulosa cells secrete estrogen, which stimulates
secretion of gonadotropin-releasing hormone (GnRH), which then increases
production of luteinizing hormone (LH).
The
follicular phase is the phase of the menstrual cycle, during which follicles in
the ovary mature and it ends with ovulation.
Answer:
I think that birds have different bill lengths because of their habitats and their diet. Also natural selection and evolution has also played a factor due to the fact that birds have not always looked the way that they do now, for example the Archaeopteryx a bird that lived around the time of the dinosaurs had a shorter and more powerful bill to grind insects and small mammals
Explanation:
Answer:
The purpose is to defense, capture food, and clearing.
Answer:
The Six Kingdoms. When Linnaeus developed his system of classification, there were only two kingdoms, Plants and Animals. But the use of the microscope led to the discovery of new organisms and the identification of differences in cells. Today the system of classification includes six kingdoms.
Explanation: