The first is incorrect because the more massive an object, the more gravitational force acts on it.
The second is false because the gravitational force decreases with distance. It's why the outer planets are usually smaller.
The third is true. It depends on both mass and distance and attracts two objects together.
The fourth is false because temperature and pressure have nothing to do with gravity.
Answer:
Cellular structures means the organelles of the cell. Organelles are the parts of the cell which are responsible for their specific functions. Each organelle do some work for the cell. Some organelle produces proteins and energy i. e. ribosome and mitochondria respectively. Some are responsible for the removal of waste products such as lysosomes and vacuole. The function of cell is to produce energy from the food for the body.
Can you elaborate ?????????????????????????
Answer:
Option A) Simple Prokaryotes.
Explanation:
- The first life that existed on Earth was the single-celled microbes who lack a well defined nucleus and are known as Prokaryotes
- They existed on Earth for almost four billion years ago.
- In Prokaryotes "Pro" means before and "Karyon" means nucleus which means they lacked nucleus and many other cell organelles that complex structures have.
- They are single celled organism adaptive of living in earth older environment.
Result: Simple Prokaryotes was the first life on earth.
