Cartilaginous fish conducts internal fertilization. Internal fertilization happens when the egg cell and sperm cells of the parents were fertilized inside the body of the parent. And the baby is developed over time.
Sexual production requires the sperm and egg cell
Answer:
hydrogen, because organic compound consists of hydrogen
Answer:The bodies of different species are similar.
The development of different species are similar.
The DNA of different species are similar.
Experiments can form the molecules of life out of chemicals.
Fossils show a history of life that gets more complex.
Fossils show different stages of evolution in a species.
The fossil record is backed up by the geological record.
Explanation: their all true, i did the lesson
Growth, repair, reproduce
