It has been discovered that many plants synthesize molecules that destroy the corpora allata, which are the structures in insects responsible for synthesis of juvenile hormone. insects exposed to these molecules do not molt. which of the following statements reflects how levels of juvenile hormone disrupt the insect life cycle?
a. reduced juvenile hormone prevents molting.
b. exposure to juvenile hormone prevents the larvae from developing into adult insects.
c. reduced juvenile hormone causes insects to molt prematurely into sterile adults.
d. exposure to juvenile hormone causes juvenile insects to die.

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.

What molecule does hemoglobin decay into over time

How are fossils used to date organisms?