Which of the following have led to declines in freshwater mussel diversity? ***(Select all that apply) ***

o Dam construction

o Reforestation

o Deforestation

o Channelization/Ditching of streams

o Over-harvesting of fish

o Over-harvesting of freshwater mussels

o The establishment of laws like the Clean Water Act and the Endangered Species Act

the answer is b

explanation:

rocks and weathering-matching

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

about 40,000,000 results (0.81 seconds)  

search results

what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.