The rocks found at the bottom of a river smooth and flat because those are collides with each other.
Explanation:
At the bottom of the river, the rocks which are found are very smooth and the shape of these rocks are flat because the rocks at the bottom collide with each other.
This results in the chipping off parts of the rocks and this results in the surface of the rock to become smooth and becoming flat. Moreover the sand found at the bottom acts as a sand paper creating resistance and smooth-ens the rocks at the bottom of the river.
Answer:
1. Body cells divide because of
a) growth: cells divide in order to grow and get larger
b) replace: almost millions of cells die each day. To replace those cells the body cells divide
c) reproduce: body cells divide in order to reproduce more cells
2. Mitosis: the type of cell division in which two daughter cells each having the same number and kind of chromosomes arise from a single parent cell.
3. Meiosis: the type of cell division that results in four daughter cells each with half number of chromosomes of parent cells as in the production of gametes(sex cells) and plant spores .
Answer:
a technological change is an increase in the efficiency of a product or process that results in an increase in output, without an increase in input. ... Processes or products, such as the telephone, move through technological change in three stages: Invention - the creation of a new product or process
Explanation:
Answer:
A
A because it is talking specifically about two different pieces within the human body which have two different functions
correct answer is there are fewer structures in the cell on the top
and the structures in the cells are similar
