What role did gravity play in forming the sun?
gravity caused the solar nebula to collapse toward the center, causing the center of the sun to be dense and hot.
gravity turned the protoplanetary disk into a planetesimal, which became the sun.
gravity turned the protoplanetary disk into a rotating solar nebula, which became the sun.
gravity caused small particles to collide to form larger particles called planetesimals, which eventually formed the sun.

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material

Abody cell has been growing and at synthesis proteins.in the nucleus of this body cell,dna replication is taking place. and a copy of the cells genetic material is copied.which of the following is the best conclusion you can make about the life cycle of this cell ? a) the cell is ready to undergo mitosis.and a chemical signal will send the cell to prophase b)the cell is undergoing meiosis and will cross over the genetic material next c)the cell is in the s phase of interphase and will move next to the g2 phase d) the cell is in the g2 phase of the interphase and is ready to begin diving