Which statement is true about chromosomes? a. they are made up of dna wrapped around proteins b. they are made of lipids and carbohydrates c. they are made during meiosis d. they are not involved in mitosis

Name the part of the the brain labeled "e".

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2