Many cells have a nucleus that contains chromosomes. these chromosomes carry genes that are composed of

a
hormones

b
minerals and water

c
dna molecules

d
undigested food molecules

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?