Answer:
Amoeba cells catch food and move about extending fingerlike projections of a colorless material called protoplasm and are found in decaying bottom vegetation of fresh water streams and ponds
Answer:
It needs the spines for protection
Explanation:
The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.
An expiremental constant is the amount of water and sunlight, the variable is the music
<span>Simple.
All of the millions of different life forms (the diversity of life) have come about by natural selection, whereby random mutations in the genes have either succeeded or failed.
But all life can be traced back to a common single-celled origin. Thus we have the unity of life where we (possibly) share more than 50 % of our DNA with a crocodile.eg:analogous organs, homologous organs.</span>
Answer:
There is no enough data on Earth's temperature before life appeared.
Explanation:
