Which of the following surface molecules is/are constitutively expressed by DN T cells?

Constitutively means at all times.

Choose ALL correct options. No partial credit.

This is a trick question!

Select one or more:
A. CD3
B. MHC-I
C. MHC-II
D. TCR
E. CD8
F. CD4
G. BCR

Which of the following is a difference between a food chain and a food web? selected: a. food webs contain both plants and animals. food chains only contain animals.this answer is incorrect. b. food webs show energy transfer. food chains show which animal eats which animal. c. food webs separate organisms by tropic level. food chains do not. d. food webs are a complex patterns of energy flow. food chains only show one line of energy flow.

What are some aquatic organisms that live in cold water temperatures?

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.