In multi-celullar organisms , the cell cycle produces groups of cells that perform the same function. These groups of cells form what it is called a tissue. A tissue is made up of cells that all are specialised to perform the same function. A bunch of tissues form an organ. Organs are more complex in structure and functions.
lots of different organs together form an organ system.
A. Development of transportation
Answer:can you add the diagram?
Explanation:
"Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor" is the one among the following that <span>provides the best example of how comparative embryology supports the theory of evolution. The correct option among all the options that are given in the question is option "C". </span>
From smallest to largest: Planetesimals to protoplanets to moon to planet.
A planetesiamal is a small body from which planets originate. When planetesimals joins together they become protoplanet. An aggregation of protoplanets will become a moon or a planet. Moons are always smaller compared to the planet they orbit.
