Directions: Write vertebrate or invertebrate on the blank of every item if the statement belongs to that group
1. They have muscles attached to their
bones
2. They have backbones
3. They have a nervous system with a
brain
4 Their body temperature remains
constant.
5. They have legs, wings, or fins for
movement
1. These animals are small and slow
moving
2. These animals lack supportive
systems
3. They do not possess lungs because
they respire through their skin.
4. They reproduce by spontaneous
division of their body into two or
more parts
5. They have no backbones.​

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis