Colorblindness is an X-linked recessive trait. A phenotypically normal man and a colorblind woman have four sons. What is the probability that all four of them are color blind? Assume no new mutations.

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

-hails tea

explanation:

-t poses

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

c. establishing proper sleep hygiene