Please help with the following questions STAT, will rate. Provide complete answe
ID: 301846 • Letter: P
Question
Please help with the following questions STAT, will rate. Provide complete answers. Thank you
O Question 6 1.67 pts Which of the following statements about bilateral symmetry is FALSE? O Only a longitudinal cut along the sagittal plane will divide the organism into two mirror images O It's advantageous for sessile organisms (organisms that don't move) O It's advantageous for organizing all sensory organs in the anterior part O It fostered the concentration of neurons near sensory organs, starting the evolution or a brain O It's advantageous for setting a direction for moving, as the organism has an anterior and a posterior end
Explanation / Answer
Answer 6: Radial symmetry is advantegeous for sessil organisms NOT bileteral symmetry as the want sensory organs distributed all around their body so that they can sense the detect and grab food while sitting at one place.
Option (2) is FALSE.
Answer 7: According to endosymbiotic theory for the origin of mitochondria states that they have descended from bacteria (like purple nonsulfur bacteria) that survived endocytosis by other species of prokaryote and incorporated into the cytoplasm. Also, eukartic cells have developed from prokaryotic cells.
Option (1) is TRUE. Chloroplast descendent from free living photosynthetic prokaryotic cell.
Answer 8: Cells of protists colony are held together by Biofilm.
Option (3) is FALSE.
Answer 9: Since life originated in water, all the developments favoured aquatic life. The body type of all the organism supported movement in water as in their body shape and body skeleton. Hence more energy was required to move on land.
Option (4) is FALSE.
Answer 10: The Cmabrian explosion of animal diversity was hypothesised to be because of ecological and developmental reasons i.e., increase in oxygen in the environment, increased predation and chnages in developmental genes.
Option (4) is FALSE.