The main features of fish. How can fish be described according to examples of representative species, basic...
The main features of fish. How can fish be described according to examples of representative species, basic morphology, skin, respiration, circulation, nitrogen waste, thermal control and types of reproduction?
Homework Answers
Examples of representative species of fish - sharks, sardine, mackerel, rays, catfish, dolphins
Basic morphology - fishes are divided into two types chondrichthyes which are cartilaginous fish and osteichthyes which are bony fish. Then they are differentiated based on their hydrodynamic body,scales.
Skin- placoid scales are seen on cartilaginous fishes and cycloid scales or ctenoid scales are seen on bony fishes.
Respiration - is mainly through gills. Oxygen dissolved in water is taken up through the gills.
Circulation - the circulation is mainly closed and incomplete with heart being two chambered.
Nirogen waste - urea waste is secreted in chondrichthyes and ammonia in osteichthyes.
Thermal control - heterothermic
Types of reproduction - fertilization is internal in cartilaginous fishes while its external in bony fishes.
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The main features of fish. How can fish be described
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a) One problem that all respiring organisms share is the
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oxygen and removal of carbon dioxide. Two types of structures that
have evolved for carrying out gas exchange are gills and lungs. The
table below lists organisms according to the type of structure they
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Describe the general process of gas exchange that occurs
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use critical analysis doing these questions
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Question 1: Homeostasis, Common Ancestry, and
Divergence
a) One problem that all respiring organisms share is the
need for biological structures that allow efficient uptake of
oxygen and removal of carbon dioxide. Two types of structures that
have evolved for carrying out gas exchange are gills and lungs. The
table below lists organisms according to the type of structure they
use for gas exchange.
Describe the general process of gas exchange that occurs
between a gill or lung and the...
480 CHAPTER 21 ANALYZING DATA 21.1 Does the Identity of Organisms Influence Energy Flow between Trophic Levels? Ecologists have noted that individuals and populations of 1. Plants non insect invertebrate herbivores- some species known as keystone species: see Concept small mammals large mammals 16.3) influence energy flow between trophic levels more 2. Algae - aquatic non-insect invertebrate herbivores than others. In particular, we've seen several examples in -insect predators - fish which invasive species have greatly altered energy transfers 3....
Answer all questions in 1-3 sentences, thank you.
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Can you please help me to find Possible test questions?
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please Identify the key points and main thesis of the
article
2. Describe the skills you will need to develop to manage the
hospital of the future.
use critical analysis doing these questions
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never read the article -what are the key points you would want the
reader to know in order to understand the hospital of the future.
In addition, managers, executives do not have time to read--so
again what key...
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