How do flowers help with plant reproduction? The egg and sperm cells of the plant is found in different parts of the flower.

Flowers are used to keep sperm cells safe from the environment.

Flowers are used to attract animals to eat the plant to help pollination.

Flowers are used to keep the egg cells safe from the environment.

Differentiation of cells changes the nucleic information. true false

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? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Explain the process that creates the heat of the sun?