Biology, 27.02.2020 19:24 chandataylor4215
Centrioles, cilia, flagella, and basal bodies have remarkably similar structural elements and arrangements. Which of the following hypotheses is most plausible in light of such structural similarities?a. Loss of basal bodies should lead to loss of all cilia, flagella, and centrioles.
b. Motor proteins such as dynein must have evolved before any of these four kinds of structures.
c. Natural selection for cell motility repeatedly selected for microtubular arrays in circular patterns in the evolution of each of these structures.
d. Cilia and flagella arise from the centrioles.
e. Cilia and flagella coevolved in the same ancestral eukaryotic organism.
Answers: 3
Biology, 21.06.2019 21:10
Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marlaโs complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.
Answers: 3
Centrioles, cilia, flagella, and basal bodies have remarkably similar structural elements and arrang...
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