Like the cnidarians, flatworms depend on __________ for achieving circulation and gas exchange

A. blood
B. hemolymph
C. diffusion
D. hearts
E. lungs


C

Biology & Microbiology

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________ is a water-soluble hormone derived from the nervous system that regulates blood volume and blood pressure?

A. Antidiuretic hormone B. Aldosterone C. Cortisol D. Oxytocin E. Adrenocorticotropic hormone

Biology & Microbiology

The C4 photosynthetic cycle is more efficient than the C3 cycle when the ________

a. climate is hot and dry b. soil is deficient in nitrogen c. climate is cool and damp d. plant is growing at a high altitude

Biology & Microbiology

An mRNA codon reads GUA. If a transition mutation occurs at the third base pair, will the final protein be changed?

What will be an ideal response?

Biology & Microbiology

If a strand of RNA has the sequence AAGCTC, transcription will result in __________________________________________________________________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology