Biology, 16.12.2021 23:20, LindaCat78
What type of animal symmetry also includes the formation of a head? What is this process called?
A. Those with bilateral symmetry display cephalization.
B. Those with radial symmetry display cephalization.
C. Those with radial symmetry have an oral side.
D. Those with asymmetry display cephalization.
Answers: 1
Biology, 22.06.2019 15:00, Gunn2368
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
Answers: 1
Biology, 22.06.2019 17:50, radcon8099
Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. me % babies born at different weights - babies born in that category which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. mark this and totum save and exit next submit type here to search
Answers: 2
Biology, 22.06.2019 19:00, admierewebb
Penicillin is hydrolyzed and thereby rendered inactive by penicillinase (also known as ฮฒ-lactamase), an enzyme present in some resistant bacteria. the mass of this enzyme in staphylococcus aureus is 29.6 kd. the amount of penicillin hydrolyzed in 1 minute in a 10-ml solution containing 10-9 g of purified penicillinase was measured as a function of the concentration of penicillin. assume that the concentration of penicillin does not change appreciably during the assay. penicillin(ฮผm) amount hydrolyzed(nmol) 1 0.11 3 0.25 5 0.34 10 0.45 30 0.58 50 0.61 (a) plot v0 versus [s] and 1/v0 versus 1/[s] for these data. does penicillinase appear to obey michaelis-menten kinetics? if so, what is the value of km? (b) what is the value of vmax? (c) what is the turnover number of penicillinase under these experimental conditions? assume one active site per enzyme molecule.
Answers: 2
What type of animal symmetry also includes the formation of a head? What is this process called?
A...
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