1
Question: Based on the above information, why do you think the eyes of catfish are relatively small?
Organism of the Day: Catfish
Catfishes (order Siluriformes) are a diverse group of rayfinned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior. Many of the larger species of catfish are farmed or fished for food, while many of the smaller species, particularly the genus Corydoras, are important in the aquarium hobby.
Catfish may have up to four pairs of barbels, although pairs of barbels may be absent, depending on the species. Their barbels are important in detecting food. The eyes on catfish are generally small.
Catfish have no scales; their bodies are often naked. In some species, the mucuscovered skin is used in cutaneous respiration, where the fish breathes through its skin. In some catfish, the skin is covered in bony plates called scutes; some form of body armor appears in various ways within the order.
2
Biology1. Organism of the Day 102. Schoolwires Web Survey 15/Start Homework3. Evolution Video/Test Make Up 554. 16.1 Notes5. Start Homework
AnnouncementsDue Today: Nothing:)
Due Monday: Read 16.1 and Answer Questions 1 3.
3
Schoolwires Survey Activity
4
Evolution Video/Test Make Up
5
6
16.1 NotesDarwin's Voyage of Discovery
I. Charles Darwin
7
16.1 NotesII. Darwin's Epic Journey
A. Evolution
B. HMS Beagle
8
16.1 NotesIII. Observations Aboard the Beagle
A. Biological Diversity
B. Patterns of Diversity
9
TurnandTalk
10
16.1 Notesi.Species vary globally
11
16.1 Notesii. Species vary locally
12
13
16.1 Notesiii. Species vary over time
1. Fossils
2.
iv. Synthesis of Ideas
14
16.1 Notes
15
Exit Question:
Define evolution.
RemindersDue Monday: Read 16.1 and Answer Questions 1 3.
Top Related