Answer:
a)Osteoclasts
b)Osteoblasts
Explanation:
a) destroys the bone matrix
b) have osteogenic functions
<h2>Collagen genes is the best choice</h2>
Explanation:
Collagen is the most abundant protein in mammals
- Collagen is found in bones,muscles,tendons and skin
- It is the one which holds the body together
- It strengthen and support many tissues in the body
- Collagen genes encode many types of collagen which have a structural role in the extracellular matrix and has a great tensile strength
- At least 26 different collagen polypeptide chains are present which are encoded by 26 unique collagen genes
- Since collagen is the main protein of connective tissue in animals and is considered as the most abundant protein in mammals it can be the best choice to base the phylogeny
- Rest all options are specific for a particular function in particular animals
Answer:
(look at explanation)
Explanation:
Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells. These control the contractions of your heart.
They do not have a distinct head and thorax but a fused version of the two called a cephalothorax. That's one of the major differences between insects and crustaceans, both being subgroups of arthropods.
Both the offspring (hybrid offspring) produced by donkeys and horses are infertile, sterile, cannot have its own offspring and both have 31 pairs of chromosomes each. Because of this, both horses and donkeys are considered as a separate species
