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Natural sciences

Ecosystems and the environmental balance

Educator section

Memorandum

Assignment 11:

  • Lion
  • Blue whale (largest mammal)
  • Bat
  • Pangolin and hedgehog

What do you remember?

(i) An ecosystem is formed by all the living organisms that have a mutual influence on one another and on their environment

(ii) air; water; sun and soil

(iii) organism – matter – energy

(iv) plants (producer); caterpillars (primary consumers); birds (secondary consumers)

(iv) horse; elephant

(vi) Carnivores are meat eaters and herbivores are plant eaters

Leaner section

Content

Activity: to distinguish between herbivores, carnivores and omnivores [lo 1.2, lo 2.1, lo 2.2]

3. MACROCONSUMERS

(a) HERBIVORES

They eat seed-pods, grass, leaves and vegetables. They do not eat meat and therefore do not hunt. Instead, they are hunted by carnivores. Their bodies are adapted to suit their way of life and feeding habits.

They have large ears and can hear exceptionally well. Some of them have stripes (e.g. kudu, nyala, zebra, etc.) to camouflage themselves. Many carnivores only see shades of grey, black and white. As carnivores do not distinguish between colours, kudu and other buck can remain safe while they stand quite still when danger threatens.

Most plant-eaters have very good eye-sight, with the eyes set at the sides of the head, which gives them a wide field of vision. They also have a good sense of smell. Herbivores (e.g. kudu, rabbits, hares, locusts, springbuck, sheep, etc.) are constantly on guard against danger!

Assignment 11

Write a short report on one of the above-mentioned animals, describing its ears, eyes, sense of smell, food and enemies.

MY REPORT ON THE . . .

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

EDUCATOR’S ASSESSMENT

CRITERIA 1 2 3 4
Research done correctly _____ _____ _____ _____
Data meaningful _____ _____ _____ _____
Reporting complete _____ _____ _____ _____

(b) CARNIVORES

The largest group of carnivores are mammals, which include the cat family (wild cats, lions, leopards, tigers and domestic cats) and the dog family (wolves, foxes, jackals, wild dogs and domestic dogs).

They are hunters and can only eat once they have caught their prey (not the domestic dog). Carnivores hear and smell well and have strong, pointed jaws to snap at their prey and tear off chunks of flesh easily. Their eyes are situated in the front of their heads, so they can focus well and judge distance very accurately. They also have strong legs that enable them to be fast and agile when chasing their prey. They can run fast for long distances, without tiring.

Questions & Answers

how can chip be made from sand
Eke Reply
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Berger describes sociologists as concerned with
Mueller Reply
what is hormones?
Wellington
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Source:  OpenStax, Natural sciences grade 6. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11079/1.1
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