Un gobierno no regula la caza de sus especies nativas. Esto conduce a la extinción de varias especies de grandes mamíferos. Este es un ejemplo de
¿qué amenaza a la biodiversidad? *

i believe the answer is a or 1

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

c should be the answer

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.