Feathers are modified as scales. According to the history, birds which have feathers are the descendants of the dinosaurs which have scales.
That's why feathers are categorized as scales in the present record according to studies. <span />
Answer:
Both are directly proportional.
Explanation:
The given factors' correlations with intelligence are directly proportional although their values are belove 1.
Brain size is directly proportional with intelligence by a value of 0.3-.04.
The speed of takin in perceptual information is directly proportional with intelligence by a value of 0.3.
I hope this answer helps.
Blood cells are produced in the bone marrow and the bone marrow is part of the skeletal system. So the answer would be skeletal system<em>. </em>
<span>False. A condition in which gametes are the same size and shape is isogamy. </span>
I think its C. hormones act on muscles and glands only. Because hormones act on cells, tissues, organs etc. So this is incorrect and the rest of them are correct.
