qué ocurriría en el experimento se realizará con un objeto que no tuviera fricción por ejemplo un pedazo de plastilina​

the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602