If activated B cells secrete antibodies, then what secrete antibodies? Answer choices: - parasites - barnacles - the body's largest organ - major threat to health - activated b cells - resistance activities - fur seals - it keeps an organism warm
activated b cells
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If insects lack a vertebral column or backbone, then what do insects lack? Answer choices: - sensory neurons - the body's largest organ - a vertebral column - wings - legs - Chlorophyll - a cuticle - reproductive system
a vertebral column
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If nematodes are in the phylum Nematoda, then what phylum are Nematodes in? Answer choices: - Most plants - ferns - parasites - Epidermis - white - insects - graptolites - Nematoda
Nematoda
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If transport of neurotransmitters is active transport, then the transport of what requires energy? Answer choices: - communication - microorganisms - colors of the spectrum - Something to move - salamanders - Neurotransmitters - an object - Veins and arteries.
Neurotransmitters
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