Answer:
Cell–cell interaction refers to the direct interactions between cell surfaces that play a crucial role in the development and function of multicellular organisms. These interactions allow cells to communicate with each other in response to changes in their microenvironment.
Answer:
A protist
Explanation:
In the given question, the characteristic of an unidentified organism are given which are:
1. The organism is unicellular and autotrophic which means that it is a producer and belongs to a plant like organism.
2. The membrane bound nucleus means that the organism is an eukaryote.
The organism is thus an unicellular, autotrophic and an eukaryote could be a species of algae which is considered a protist. The protists are the organisms which shows characteristic of the ukaryotes but are not considered true plants and animals.
Thus, a protist is correct answer.
Answer: Dark energy and dark matter describe proposed solutions to as yet unresolved gravitational phenomena. So far as we know, the two are distinct. Dark matter originates from our efforts to explain the observed mismatch between the gravitational mass and the luminous mass of galaxies and clusters of galaxies.
Answer: D, all are processes that shape Earth's features. I don't know if this was a choice answer but, hope this helps. :)
Explanation:
