A period in a man’s life, usually during his 70s or 80s, when testosterone decreases, causing a decrease in spermatogenesis, is called

Look at the punnett square for an x-linked recessive disease. is it possible for a female offspring to have the disease?

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.

About __ of the mass of the cell is water