ورق عمل الدرس الثالث العلاقات في النظم البيئية علوم صف خامس : نقدم اليكم في هذا الملف مجموعة من أوراق العلوم الهامة والتي تتضمن عددا من الأسئلة والتدريبات الشاملة ، من منهج العلوم الصف الخامس ،و قد تم تصميم هذا الملف لمساعدة طلابنا الاعزاء، في دراستهم و تحضيرهم للامتحان النهائي بشكل متكامل.
Science Grade 5 Lesson 3
Relationships in Ecosystems
Competition : the fight for limited resources
Limiting factor : is any resource that restricts the growth of populations
Abiotic limiting factors : water, temperature, weather, soil type, space to grow shelter and sunlight
Biotic limiting factors: the amount of available food
Carrying capacity, is the greatest number of individuals within a population that an ccosystem can support
Habitat : is the physical place where an organism lives and hunts for food
Niche : is the special role that an organism plays in a community
Symbiosis : is a relationship between two or more kinds organisms that last over times
Mutualism : a symbiotic relationship that benefits both organisms. Examples: o Pollinator (insect or bird) and a flowering plant o Ants and acacia trees o Lichens (the fungus and alg
Commensalism : a symbiotic relationship that benefits one organism without harming the other
Example : Remoras are fish attach themselves to the bodies of rays and shark to get food
transportation and protection. o Orchids growing on trees in a rain forest
Parasitism : symbiotic relationship where one organism benefit and the other harmed
Example : Ticks and parasites on animals
Tapeworm in human
Amoeba cause a disease called dysentery
A lichen is a combination of fungus and algae that lives on the sides of trees, rocks, and other materials. The fungus provides the algae with water and minerals and the algae uses the water and minerals to make food for both organisms. What type of relationship does the lichen represent
Parasitism
Commensali
Mutualism
When a symbiotic relationship benefits both organisms, it is an example of
Commensalism
Mutualism
Parasitis
Carnivores
When a symbiotic relationship helps one organism and hurts the other it is an example of
Commensalism
Mutualism
Parasitism
the following picture is an example of what kind of symbiotic relationship
Commensalism
Mutualism
Parasitism
Which of the following symbiotic relationships is considered parasitic
ticks feeding on a dog o bees transporting pollen from flowers opilot fish swimming under sharks
birds eating the insects from the back of a hippopotamus
Ants and acacia trees have a mutualistic relationship because
they benefit cach other
hey are part of the same ecosystem
they are both adapted to a humid climate
the ants eat part of the acacia tree
Which of the following is a symbiotic relationship where one partner benefits and the other does not benefit or lose from the relationship
commensalism
mutualism
parasitism
decomposition
Which of the following is a symbiotic relationship where both partners benefit
commensalism
mutualism
parasitism
decomposition
Which of the following is a symbiotic relationship where one partner benefits and the other is harmed
commensalism
mutualism
symbolism
Parasitism
Which of the following symbiotic relationships is considered parasitic
Tapeworm in an intestinal tract
Becs transporting pollen from flower
Pilot fish swimming under sharks
Birds cating the insects from the back of a hippopotamus
Ants and acacia trees have a mutualistic relationship because
They both benefit from living with each other
They are part of the same ecosystem
They are both adapted to a humid climate
the ants eat part of the acacia tree
This occurs when organisms try to get the same resources
Symbiosis
Competitiom
Predation
Parasitism
A relationship in which one animal hunts, kills and eats another
Parasitism
Symbiosis
Predation
Mutualism
The animal that is hunted and killed for food
Predator
Scavenger
Decomposer Prey
A close relationship between two different species of organisms living together
Food Web
Food Chain
Symbiosis
Competition
A symbiotic relationship in which both species benefit
Competitiom
Commensalism
Parasitism
Mutualism
A symbiotic relationship in which on species benefits without benefiting or harming the other organism
Competition
Parasitism
Commensalism
Mutualism
A symbiotic relationship in which one species benefits by harming another
Mutualism
Competition Commensalism Parasitism
A dog and a tick are examples of which symbiotic relationship
Predator Pree
Parasitism
Commensalism Mutualism
An owl and a mouse are examples of which symbiotic relationship
Mutualism
Parasitism
Commensalism
Predator/Prey
A clownfish lives in a sea anemone. The anemone is not hurt, but the clownfish can live in its safety. This is an example of what symbiotic relationship
Mutualism
Parasitism
Predator/Prey
Commensalism