In algae, gametangia are generally unicellular
_________________ Indicate whether the statement is true or false.
T
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In all vertebrates with four-chambered hearts, the ________ receives oxygenated blood directly from the ________.
A. left ventricle, left atrium B. left ventricle, lungs C. right ventricle, right atrium D. right ventricle, lungs E. left atrium, left ventricle
The sex hormones of many animals are a specific type of lipid molecule known as
a. fatty acid. b. phospholipid. c. carotenoid. d. steroid. e. lipoprotein.
Chlamydomonas is multicellular, produces motile haploid sperm, and is photosynthetic. Chlamydomonas is which of the following?
A. an apicomplexan B. a slime mold C. a protozoan D. a green alga E. a diatom
Answer the following questions true (T) or false (F)
1. People with genes for a form of hemoglobin known as hemoglobin C are at risk of fatal malaria disease. 2. Staphylococcus aureus is part of the upper respiratory microbiome. 3. Haemophilus influenzae is a common cause of sinus infections.