![subject](/tpl/images/cats/biologiya.png)
Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 according to this dichotomous key, any catfish must have a. a double dorsal fin, a small fin on the back near the tail, and barbs near the mouth. b. a single dorsal fin, no small fin on the back near the tail, and barbs near the mouth. c. a double dorsal fin, a small fin on the back near the tail, and no barbs near the mouth. d. a single dorsal fin, a small fin on the back near the tail, and barbs near the mouth.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 23:00
Neelaredoxin is a 15-kda protein that is a gene product common in anaerobic prokaryotes. it has superoxide-scavenging activity, and it is constitutively expressed. in addition, its expression is not further induced during its exposure to o2 or h2o2 (silva, g., et al. 2001. j. bacteriol. 183: 4413–4420). which of the following statements best describes neelaredoxin synthesis? a-neelaredoxin is produced at all times; levels are constant even when exposed to o2 or h2o2.b-neelaredoxin is produced at all times; exposure to o2 or h2o2 increases expression.c-neelaredoxin is produced at all times; exposure to o2 or h2o2 decreases or prevents expression.d-neelaredoxin is only produced when there is exposure to o2 or h2o2.
Answers: 3
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 23:00
If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 00:30
What was the land like over 500 million years ago? what was under the sea?
Answers: 1
You know the right answer?
Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) h...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 02.07.2019 21:30
![question](/tpl/images/cats/istoriya.png)
History, 02.07.2019 21:30
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 02.07.2019 21:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/es.png)
Spanish, 02.07.2019 21:30
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/es.png)