امتحان الكتروني -ساينس - الصف الرابع - الوحدة الاولى - الدرس الثاني

Savannah is found in ............, where the temperature is moderate.

Mutations over time and generations can improve ______.

Prickly pear has a lot of spines to ........

The upper surfaces of the ....... of water lily plant are covered with wax.

Mangrove tree has a  special type of roots, called aerial roots.

........has short branches and thorns instead of leaves.

............is a process by which species change over many generations through mutation

Biological adaptations primarily include changes that  ........... in an environment.

............grows in rainforests of Amazon in Brazil .The height of these trees reaches to 70 metres.

Plants grow in all the places reached by the Sun, even at the bottom of iced marine surfaces.

The shape and size of a bird's beak had changed from the parent to the offspring This change in the physical beak trait is called ...........

Kapok tree has .................-shaped leaves.

Most plants can't overcome the drought, except .......

Organisms that cannot _____ will die off

Acacia tree has ..........to reach deep underground water.