Grade 7 Revision Crossword

When your body changes from a child to an adult.
Chemicals that control the changes from a child to an adult.
Male sex cells.
The tube inside the penis that carries urine.
The womb is also called the ____.
The female reproductive system includes a cycle of events called the ____ cycle.
A fertilised egg divides to form a ball of cells.
The ____ is responsible to provide oxygen and nutrients to the baby.
The bag that contains the liquid that protects an unborn baby.
Oxygen and nutrients ____ from the mother to the baby.
Special characteristics that allow an organism to survive in a particular environment.
For animals to survive in very cold climates they usually have very small ____.
Animals control body heat by having a lower surface area to ____ ratio.
Animals that live in desert climates have ____ body fat.
Animals that live in desert climates have a more ____ body shape.
Plants that live in very cold climates sometimes have ____.
Many trees in cold climates are _____.
Plants that are able to store a lot of water in their stems or leaves.
Desert plants' flowers open at ____.
Desert plants have ____ that protect the plant from being eaten.
Allows an animal to blend in with its environment.
Allows an animal to look, sound and act like another that is poisonous or dangerous.
A deep sleep in which an animal's body temperature drops.
Lions and wild dogs are known to hunt in ____.
The movement of a plant toward or away from a stimulus.
When a seed does not germinate for years because it is waiting for right circumstances it is called _____.
Largest group in the Plant kingdom.
Produces "naked seeds".
Plants that have leaves that are parallel veined.
Plants that have a tap root system.
The presence of differences between species.
A characteristic received from the parents is ___.
Variation caused by your surroundings is called _____ variations.
Species gradually evolves through ___ selection.
Selective breeding is an example of ____ selection.
Mushrooms fit into this kingdom.