Answer: b. Muscles
A metazoa is a division of animal kingdom that includes all animals expect protozoa and sponges. Metazoa division includes multicelluar animals, which exhibit highly differentiated cells. They have muscular and nerve system and well coordinated tissues and organs. Locomotion requires a coordination activity of muscular, skeletal and neural system. It is mainly achieved by contraction and relaxation of muscles that occurs due to specialized muscle proteins named as actin and myosin which receives signals from nerves.
Hence, locomotion in metazoa is due to contraction of muscles.
Answer:
see below
Explanation:
their roots respond positively, growing down, into the soil, and their stems respond negatively, growing upward, to reach the sunlight.
Answer:
C. Between rai and h
Explanation:
To be able solve this problem, it will be helpful to go and review the two - point mapping data generated for all the three genes that were involved. Putting in to considering that the map distances between jv-h (7.3 mu) and h-th (16.7 mu) equal the sum of the distance between jv-th (24 mu), having been given the distance between th-rai is greater (26.2 mu), the jv gene is said to be located between rai and and h.
