Q: What type of relationship occurs between organisms when one member benefits without affecting the other? Choices: - cooperative - bilateral - parasitic - commensalism A:
commensalism

(Question)
Q: What is made up of nerve cells that sense stimuli and transmit signals? Choices: - muscle tissues - blood tissue - dependent tissue - nervous tissue A:
(Answer)
nervous tissue

Ques: Q: What part of an animal helps to prevent water loss and gives support and protection? Choices: - membrane - cuticle - backbone - exoskeleton A:
Ans: exoskeleton

(Q).
Q: What do we call forces that act on the system from outside? Choices: - material - internal - static - external A:
(A).
external

Ques:Q: What can be switched off by a protein called the trp repressor? Choices: - the cytokine - the chaperone protein - the genetic precursor - the operon A:

Ans:the operon

Q: In a model of a hemoglobin molecule, the purple part indicates the presence of what element? Choices: - gold - helium - silver - iron A:
iron