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