The three classes of vertebrate endocrine hormones are ________, ________, and ________

Fill in the blank(s) with correct word


peptides (or proteins); amino acid derivatives; steroids

Biology & Microbiology

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Symptoms of a common cold, such as runny nose and sore throat, most directly result from

a. attachment of virus particles to the mucosa of the upper respiratory tract. b. cell death in the lining of the nose and throat. c. the body's attempts to defend against the infection. d. general stress and social isolation brought about by having an infection. e. psychological conditioning based on previous infections.

Biology & Microbiology

The simple tissue composed of living, thin-walled cells with functions that depend on location is called ____ tissue

a. vascular b. dermal c. collenchyma d. sclerenchyma e. parenchyma

Biology & Microbiology

The exome refers to the _________________

A. portion of the genome that encodes proteins B. portion of the genome that contains introns C. portion of the genome that contains regulatory sequences D. entire genome E. guanine based genes

Biology & Microbiology

Which of these is an INCORRECT matching of causative agent and disease?

a. Yersinia pestis: plague b. Salmonella: food poisoning c. Brucella: yellow fever d. Clostridium: gas gangrene

Biology & Microbiology