Which Lophotrochozoan phylum includes members that have a wheel-like, ciliated, food-gathering organ around their heads called a corona?

a. Mollusca
b. Rotifera
c. Nemertea
d. Platyhelminthes


Ans: b. Rotifera

Biology & Microbiology

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The ascending tracts of the spinal cord are responsible sensory and motor functions of the peripheral nervous system that control the skeletal muscles.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following eukaryotic cell structures plays a role in protein trafficking and sorting?

a) lysosomes b) mitochondria c) the Golgi apparatus d) the endoplasmic reticulum e) vacuoles

Biology & Microbiology

Which of the following will not support viral cultivation?

A. primary cell cultures B. embryonated bird eggs C. continuous cell cultures D. blood agar E. live lab animals

Biology & Microbiology

In cats, a fur color gene is on the X chromosome. At this locus, cats can have a black allele or an orange allele. Cats who are homozygous for the black allele have black fur, cats who are homozygous for the orange allele have orange fur, and cats who are heterozygous at this locus are tortoiseshell. What offspring would you expect from a cross between an orange female and a black male?

A. tortoiseshell females and orange males B. tortoiseshell females and black males C. orange females and black males D. black females and orange males E. tortoiseshell females and tortoiseshell males

Biology & Microbiology