شرح ساينس الصف السادس الابتدائي لغات - الفصل الدراسي الثاني
شرح ساينس سادسة ابتدائي - ترم ثاني

لينك تحميل الملزمة
https://drive.google.com/file/d/1x5GPU5Z-zhoBbkk0mVQIt2_tBakHMvaZ/view?usp=sharing

لينك تليجرام
https://t.me/mrahmedelbashagroup

In This Lesson:
How do environmental factors and genetic factors affect the growth of living organisms?
▌Living organisms can't survive easily in desert environment that has hard environmental factors such as extreme climate conditions.
▌Living organisms can grow well when there are enough environmental resources such as water, food .... etc.
▌When there is a shortage in the environmental resources, living organisms must adapt to the changes of the environmental conditions in their habitats to survive.
▌Small dorcas gazelle is similar to its parents because the small dorcas gets some properties from its parents known as the genetic factors that allow it to survive in desert environment such as :
- Its body color helps it to adapt its environment.
- It do not drink water for several months.

Bird Migration
Adaptation
It is the process that helps living organisms to survive in the environment in which they live.

Bird migration :
• Migration is considered a behavioral adaptation.
• Migration means a group of animals (like birds) moves together from one place to another seasonally and often they return to the place from where they are started, and so their cycle of migration is repeated.
Example of migratory birds: Steppe eagle.
► Reasons of bird migration :
Birds migrate to search for the best conditions that help them reproduce (breed) and preserve their species, such as :
1. Different food sources.
2. Suitable habitats during different times of the year.

Environmental and genetic influences (effects) on migratory birds:
• Migratory birds may face many challenges during their journey such as:
- Extreme weather conditions. - Predators.
- Shortage of food and water. - Limited resting sites due to habitat loss.
So, migratory birds must have structural characteristics (physical traits) that help them to survive during their journey.

Migratory birds in Egypt:
Examples: Falcons - Eagles.
• The Red Sea and Nile River are from important stopovers for millions of migratory birds every year.
• The main factors that attract the flocks of migratory birds to Egypt:
1. The moderate winter climate.
2. The area of Red Sea that contains different environments such as:
- Coastal environment. - Marine environment. - Mountain environment.

Basic needs:
Living organisms need some basic needs to survive such as:
• Food. • Water. • Habitat.
Influencing growth:
The environmental factors and genetic factors affect the behaviors, structure and the growth of living organisms.

► Examples of environmental factors:


► Examples of genetic factors (Hereditary traits) :








بالتوفيق
مستر احمد الباشا