When protists feed on solid nutrients such as bacteria by phagocytosis, they are said to be using ________ nutrition.
A. holozoic
B. endozoic
C. saprozoic
D. parasitic
Answer: A
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Science is subdivided into specific areas of study termed disciplines. These divisions are artificial but are helpful to narrow the massive scope of scientific knowledge to a manageable amount. Given what you know about each, which scientific division is likely to present the best answer to a question about how fluid dynamics affect blood pressure in mammals?
A. Bioinformatics – use of technology to study and store biological data B. Biochemistry – study of chemical reactions needed for life function, usually at the cellular level. C. Biology – study of life D. Biophysics – study of biological processes through physics
A heterozygous fruit fly with normal wings and a gray body (VvBb) is crossed with homozygous flies with vestigial
wings and black bodies (vvbb). If there are 800 F1 progeny, the expected phenotypes would be: a. 200 normal gray, 200 normal black, 200 vestigial gray, and 200 vestigial black b. 400 normal gray and 400 vestigial black c. 800 normal gray
d. 800 vestigial black e. 450 normal gray, 150 normal black, 150 vestigial gray, and 50 vestigial black
Jenny is losing weight, has poor tolerance to heat, and has mood swings, high blood pressure, and a rapid heart rate. She has very high levels of thyroid hormone, high levels of TSH, and a goiter
Which of these diagnoses is the most likely for Jenny's condition? A) defective thyroid hormone receptors in the body cells B) insufficient iodine in the diet C) defective receptors for thyroid hormone control by the anterior pituitary D) too much iodine in the diet
Which gammaproteobacteria are facultatively anaerobic, gram-negative rods that inhabit the intestinal tracts of humans and other animals?
a. Pseudomonadales b. Vibrionales c. Enterobacteriales d. Legionellales