Black squirrels may increase in a certain area due to natural selection because of the ground below it being dark so the squirrels would adapt to the terrain, making them harder to see by predators.
EXAMPLE: if a light fur colored squirrel is on a dark terrain, an Owl or Large bird could easily see the color differentiation and notice that it is a small land organism (prey).
So the squirrels kin would evolve in the sense that they would have darker fur to match their inhabitance
An adult sponge reproduces by mitosis, or cell division.
B. Being Biased as scientists want concrete facts that haven't been influenced by bias or outside forces.
Answer:
Similarities between Mitochondria and Chloroplasts-
Both mitochondria and chloroplast consists of DNA , have two membranes, have fluids inside them and convert energy.
Difference between Mitochondria and Chloroplasts-
They have different number of compartments, have different functions, and are involved in different energy processes.
Explanation:
Difference in Mitochondria and Chloroplasts-
a) Chloroplast is found in plants and unicellular organism and Mitochondria is found all cells.
b) Chloroplast converts solar energy into chemical energy while Mitochondria converts one form of chemical energy into other form of chemical energy
c) Chloroplast is involved in photosynthesis while mitochondria is involved in cellular respiration.
d) Chloroplast has three parts i) Thylakoid ii) stroma and iii) granum while mitochondria has three parts i) Critsa ii) Matrix
Similarities between Mitochondria and Chloroplasts-
Both mitochondria and chloroplast consists of DNA , have two membranes, have fluids inside them and convert energy.