gaseous exchange in mammals starts from the nose, air is cleaned, purified in the nostrils i.e. moisture and dust particles are removed. purified air I is passed through the trachea to the bronchus, bronchuoles (sub -bronchus) and enters the air sacs in the lungs where gaseous exchange takes place (alveous). oxygen is absorbed into the moist walls of the alveous and carbon iv oxide is removed and brought out through the same process to nose and breath out.
BORORIO answered the question on May 4, 2018 at 03:50
-
Discuss the adaptations of the following plants to their various habitats (i) Xerophytes (ii) Mesophytes (iii)Halophytes (iv) Hydrophytes
(Solved)
Discuss the adaptations of the following plants to their various habitats.
i) Xerophytes
ii) Mesophytes
iii)Halophytes
iv) Hydrophytes
Date posted:
April 30, 2018
.
Answers (1)
-
Describe the evidences of organic evolution
(Solved)
Describe the evidences of organice evolution.
Date posted:
April 30, 2018
.
Answers (1)
-
How are leaves of mesophytes adapted to their functions?
(Solved)
How are leaves of mesophytes adapted to their functions?
Date posted:
April 28, 2018
.
Answers (1)
-
Why is it advisable to feed 100kg of grain to man instead of using it to fatten steers then supply beef to human population?
(Solved)
Why is it advisable to feed 100kg of grain to man instead of using it to fatten steers then supply beef to human population?
Date posted:
April 28, 2018
.
Answers (1)
-
What is the importance of saprophytic fungi and bacteria in an ecosystem?
(Solved)
What is the importance of saprophytic fungi and bacteria in an ecosystem?
Date posted:
April 28, 2018
.
Answers (1)
-
Describe how the belt transect can be used in estimating the population of a shrub in a grass land.
(Solved)
Describe how the belt transect can be used in estimating the population of a shrub in a grass land.
Date posted:
April 28, 2018
.
Answers (1)
-
50 black mice and 50 white mice were released in an area inhabited by a pair of owls. After four months, the mice in the...
(Solved)
50 black mice and 50 white mice were released in an area inhabited by a pair of owls. After four months, the mice in the area were recaptured and only 38 black mice and only a white mice remained.
a) How would you explain these results?
b) Name the theory of evolution that support the results in (a) above.
Date posted:
April 28, 2018
.
Answers (1)
-
State two most important factors that favour exponential growth of a population of gazelle in a park.
(Solved)
State two most important factors that favour exponential growth of a population of gazelle in a park.
Date posted:
April 28, 2018
.
Answers (1)
-
Describe how natural selection brings about adaptations of a species to its environment
(Solved)
Describe how natural selection brings about adaptations of a species to its environment.
Date posted:
April 25, 2018
.
Answers (1)
-
What is the difference between artificial classification and modern classification
(Solved)
What is the difference between artificial classification and modern classification
Date posted:
April 24, 2018
.
Answers (1)
-
Explain how a leaf is tested for starch
(Solved)
Explain how a leaf is tested for starch.
Date posted:
April 23, 2018
.
Answers (1)
-
Discuss the apparatus used in specimen
(Solved)
Discuss the apparatus used in specimen
Date posted:
April 21, 2018
.
Answers (1)
-
Explain the role of the following in homeostasis; 1. Skin 2. Liver 3. Hypothalamus
(Solved)
Explain the role of the following in homeostasis;
1. Skin
2. Liver
3. Hypothalamus
Date posted:
April 20, 2018
.
Answers (1)
-
Describe how carbon dioxide produced by respiring muscle cells reaches the alveolar cavities in mammalian lungs
(Solved)
Describe how carbon dioxide produced by respiring muscle cells reaches the alveolar cavities in mammalian lungs.
Date posted:
April 19, 2018
.
Answers (1)
-
Explain how a finned fish is adapted to locomotion in water
(Solved)
Explain how a finned fish is adapted to locomotion in water.
Date posted:
April 18, 2018
.
Answers (1)
-
Give the reasons why support is necessary in animals
(Solved)
Give the reasons why support is necessary in animals.
Date posted:
April 18, 2018
.
Answers (1)
-
Explain how support in plants is achieved
(Solved)
Explain how support in plants is achieved
Date posted:
April 18, 2018
.
Answers (1)
-
State the importance of support in plants
(Solved)
State the importance of support in plants.
Date posted:
April 18, 2018
.
Answers (1)
-
State the importance of support systems in living organisms
(Solved)
State the importance of support systems in living organisms.
Date posted:
April 18, 2018
.
Answers (1)
-
How is the human eye adapted to its functions?
(Solved)
How is the human eye adapted to its functions?
Date posted:
April 18, 2018
.
Answers (1)