Which statements are true of the bone tissue? * an osteon is a functional unit of compact bone
haversian system is another name for osteon
lacunae are small spaces within bone tissue
there is rich blood, nerve and nutrient supply to bone tissue
bone is always thick and heavy
spongy bone is mostly found along the diaphysis of a long bone

There are two types of bone tissue: compact and spongy. Compact Bone Tissue. Compact bone (or cortical bone) forms the hard external layer of all bones and surrounds the medullary cavity, or bone marrow. It provides protection and strength to bones. Compact bone tissue consists of units called osteons or Haversian systems

Explanation:

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.