A group of students is investigating how the addition of salt impacts the floatation of an egg in water. Four identical cups were taken for the experiment. The data of the experiment are shown. Experimental Record
Cup Amount of Water (mL) Amount of Salt (g) Level of Egg above Water
1 450 0 Sinks to bottom
2 450 68 2 cm
3 450 136 3 cm
4 450 272 4 cm

What was the dependent variable in this experiment?
A. Density of water in the cup
B. Level of egg above water
C. Amount of water in the cup
D. Amount of salt added

Drag each label to the correct location on the image. g organisms adopt different strategies and structures to make sure their offspring it uses. herds young into center of group produces many offspring at once to protect against high predation risk protects offspring until environmental conditions are ideal for growth coo b 13 1994 7 odos si . an . i

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression.c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression.d-neelaredoxin is only produced when there is exposure to o2 or h2o2.