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When we watch animals in the wild, most often we see them foraging for food. The foraging behaviour of animals has been a focus of behavioural studies for many decades.
Natural selection shapes this behaviour so as to maximize net energy gain as a function of time. Corvous caurinus, a species of crow, forages mostly on the bivalves found in the inter-tidal zones. After searching and locating the prey, the crow picks up the bivalve.
To break open the bivalve, it flies to a certain height and then drops the bivalve on a rock. Profitability of a prey is the most significant consideration in any such behaviour and is explained as the net energy gained per unit of prey handling time.
HOMEOS T ASI S - Homeo = same, Stasis = state Living beings maintain their internal environment by self regulating system, it is called homeostasis. Term coined by
charecterstic features of phylum protozoa.
Q. Antimicrobial Barriers - proliferation of microorganisms? The first barrier is the integument: a physical barrier to protect the food, e.g., the shell on eggs, the skin on
Primary effects 1. Nuclear contamination 2. Biological contamination 3. Chemical contamination 4. Destruction of infrastructure facilities. 5.
Describe Austin Flint Murmur in heart dieases? The AR jet may impinge on the undersurface of the anterior leaflet of the mitral valve and push it up, thus creating a relative M
cutaneous respiration in musquito
Phases of Respiration in Animals The procedures of respiration in these animals have the following phases. i) External respiration is usually described as breathing. It inv
Q. Amphibian identity card. How are amphibians characterized according to examples of representing beings, basic morphology, circulation, skin, nitrogen waste, respiration, thermal
Define Classification of Weight Imbalance? Obesity is defined as a condition with accumulation of excess body fat. Do you think that a measure of how much fat a person has in i
Q. What amount of catalyst is obsessive in the reaction it catalyzes? Catalysts are not obsessive in the reactions they catalyze.
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