Answer:
The correct option is cell wall and central vacuole.
Explanation:
The cell wall can be described as an additional membrane around the cell membrane which is present in the plant cells but is absent in animal cells.
The plant cells also have a vacuole located at the center on the cell. The central vacuole is absent in animal cells. It stores the waste and other materials for the plant cell. The plant vacuole also provides support to the cell.
Answer:
Resource conservation
Explanation:
Depresion in term of Resource conservation theory is a mental state where an individual or organism develops motivation to conserve a depleting resources while in search of a new source.
For a depressed organism to reduce energy consumption in order to save for the future, it is exhibiting resource conservation
There are exactly 24 chromosomes in a girl cell and 24 in a boy cell.
Answer:
Cells vary greatly in shape These shapes are often related to the function they perform. like the disk shape of erythrocytes can absorb and transport oxygen due to increased surface area., the amoeboid shape of leukocytes allow them to squeeze through capillaries. etc.
Explanation:
Cells can be disc-like , polygonal, rectangular, cubopid thread like branched or even irregular. these are related to the functions that each cell performs.
Some examples showing relation between cell shape and function are as follows.:
- Human blood cells are circular and biconcave to transport oxygen.
- White blood cell are amoeboid to squeeze through thin capillaries.
- Nerve cells are long so that they can carry nerve impulse to a long distance very quickly.
- Guard cells of stomata are bean or dumbell shaped to open and close the stomata.
Answer:
Electromagnatic waves.
Explanation:
The energy from the sun is transferred to the earth surface in the form of heat and light. This done through radiation and convection methods heat from the sun is transported to the earth surface through radiation and convection techniques while the light is being transferred.
