<span>Every living organism begins life as a single cell. Unicellular organisms may stay as one cell but they grow too. Multicellular organisms add more and more cells to form more tissues and organs as they grow. </span>
Cells communicate through their own language of chemical signals. Different compounds, such as hormones and neurotransmitters, act like words and phrases, telling a cell about the environment around it or communicating messages.
✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧
Hello!
✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧
❖ Before mitosis and meiosis occur, DNA replication has to occur. DNA replication is when another copy is made of the DNA and in mitosis and meiosis, you need the replicated DNA for the sister chromatids.
~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡
~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ
Answer:
Answer:
Explanation:
1. Monoculture
2. Erosion
3. Desertification
4. Bio-logical Magnification
5. Bio- diversity
6. Ecological hot spot
7. ecological footprint
8. Ozone Layer
9. Aquaculture
10. Global Warming
Explanation:
Endangered Species Act of 1973
