SIGNALS
Mention 2 main types of signals in communication systems.
DIGITAL AND ANALOG SIGNALS
This instrument was used to send messages in dots and dashes before phones existed.
TELEPGRAPH
Who discovered cells in cork?
ROBET HOOKE
These organisms are made of only one cell.
UNICELLULAR ORGANISMS
This organelle contains the cell’s genetic material and controls its activities.
NUCLEUS
DIGITAL SIGNAL:
What numbers are used in binary code?
0S AND 1S
DECODE THE LETTER:
. . .
S
Who stated that all cells come from pre-existing cells?
RUDOLF VIRCHOW
These organisms are made of more than one cell and often have specialized cells.
MULTICELLULAR ORGANISMS
These organelles are called the “powerhouse of the cell” because they produce energy.
MITOCHONDRIA
Which signal is more sensitive to noise (interference)?
ANALOG SIGNAL
DECODE THE WORD:
. . / - .
IN
Which scientists proposed the Cell Theory?
Matthias Schleiden and Theodor Schwann
Both unicellular and multicellular organisms share these three characteristics: they need energy, contain genetic material, and…
composed of cells, grow, and reproduce
This organelle stores water, nutrients, and waste products in the cell.
VACUOLE
Which signal requires more complex systems of processing?
DIGITAL SIGNAL
DECODE THE WORD:
. . . . / . / . - . . / . - . . / - - -
HELLO
Who observed living microorganisms for the first time?
Anton van Leeuwenhoek
These types of cells can be either prokaryotic or eukaryotic and perform all life functions alone.
UNICELLULAR CELLS
Found only in plant cells, this organelle carries out photosynthesis.
CHLOROPLAST
DESCRIBE HOW WAVES MOVE DURING A PHONE CALL
When you speak into your phone, your voice is encoded into electrical signals, which are then changed into radio waves. These radio waves travel through the air to a cell tower and then to another phone. The receiving phone decodes the waves back into sound waves, so the other person can hear your voice.
WHAT IS MORSE CODE?
order the definition:
that encodes text characters / dots and dashes / Morse code / as sequences of / is a telecommunications method
Morse code is a telecommunications method that encodes text characters as sequences of dots and dashes.
What scientific concept links Hooke, Leeuwenhoek, Virchow, and Schleiden & Schwann?
All of them are related to the CEL THEORY or DEVELOPMENT OF CELLS
Unicellular organisms do not have these, unlike multicellular organisms.
TISSUES, ORGANS, AND ORGAN SYSTEMS
These small structures are responsible for making proteins.
RIBOSOME