Ants and bee's don't have a backbone, instead, in most cases, they have an exoskeleton.
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Answer:
The roaches antennas
Explanation:
the roaches antennas sense movement from far so the antennas sense when the roach is in danger their for it moves away not towards it.
A. Amber, because in the Prehistoric times the insects and small dinosaurs fell into amber and became preserved in the hardened sap.
Answer:the component materials and their arrangement
Explanation:
Bone are important for movement in animals.bones is made up of 15% water,30% collagen fibres and 55% mineral salts..bone cells are widely separated. The Collagen makes bones soft and flexible. Mineral salts makes it fragile and strong.
The osteogenic cells builds the bones and the osteoclasts breaks down older bone tissue, in order to keep the body strong.
Spongy bones contains tiny spicules that helps in strength.
It also reduces the weight of the bones .
The cells of Compact bones are arranged in the direction of stress to keep the bone strong.
They are constantly changing throughout life
Answer:
B. Deletion
Explanation:
the 3rd letter (C) is missing (deleted)
