1. Complete the paragraph

Myosin and actin are the in the meat. The red colour of meat is due to a pigment called
The red colour changes to brown during cooking. This
is called the___ ___. Meat can be tenderised by which
allows the tougherto be changed to.

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.

What is the relation ship between structure and function in an organism