Which one of the following is NOT considered to be one of the macronutrients needed by plants?
A. manganese
B. nitrogen
C. phosphorus
D. sulfur
E. potassium
Answer: A
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What nucleoside trisphosphate provides energy for lipid synthesis?
A. CTP B. UTP C. GTP D. TTP
Proteins embedded in the nuclear envelope that selectively allow substances to cross into and out of the nucleus form
A. Golgi B. Cytosol C. Endoplasmic Reticulum D. Nuclear Pores E. Nucleus
Which of the following is the function of the vestibular system?
a. transmission of auditory stimuli b. sinus in the skull that reduces mass c. detection of movement and balance d. sensing of the placement of the body’s limbs in space
The photoreceptors of an earthworm are
located
a. on short antennae. b. on their body surface. c. in their eyes. d. near the tip of their tail. e. nowhere- earthworms do not have photoreceptors.