Blood moves in .............direction/s in a human's veins or arteries.
two
many
only one
................ it is the process of making new plants
Photosynthesis process
seeding
Plant reproduction
Gases enter plants through the ............
leaves
stems
roots
..............produce seeds for the plant that help the plant to reproduce
Stomata
Flowers
Roots
circulatory system in human consists of .............
Blood vessels, heart, and lungs
the heart and blood vessels
Blood vessels and lungs
During photosynthesis process, light energy of the sun is transformed into ................
physical energy
thermal energy
chemical energy
............they are organisms that break the dead bodies into simple materials.
Decomposers
Consumers
Producers
........... return the blood that carries carbon dioxide
Veins
Arteries
........... it is the system that transports blood and other fluids throughout the body
Digestive system
Respiratory system
Circulatory system
During photosynthesis process, the plant produces ............
carbon dioxide, salt and water
Carbon dioxide and water
oxygen and water
Air enters the human body through the ..............
lungs
nose and mouth
nose and lungs
All organisms on the earth are connected to one another by a flow of energy.
True
False
............. are the reproductive parts of many plants.
Stems
................Carry blood from the heart to the body cells
Cells
Plant transport system has one- way vessels