As the leaf surface area decreases ; Number of leaves increase inmost plants.
As the leaf surface area increases, the rate of transpiration increases as well because leaves with large surface areas have bigger stomata. also the smaller the leave surface area of a plant/tree the denser the leaves the plants/tree will have.
Trees with tiny leaves tend to have a lot of leaves because of the decrease transpiration rate occurring in the leaves of the plants .
Hence we can conclude that what generally happens to the number of leaves as leaf surface area decrease is number of leaves increases in most plants.
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<span>The correct option is A. Endomembrane system is a series of units that work together to label, package, and transport proteins and molecules. Endomembrane system are found in the endoplasmic reticulum and golgi apparatus. The major components of the endomembrane system are golgi apparatus, endoplasmic reticulum, vessicles, cell membrane and the nuclear membrane. </span>
Answer:
1. Signaling molecule
2. Signaling receptors
Explanation:
Hormones, growth factors, neurotransmitters, etc. serve the function of signaling molecules for cells. These molecules are released by one cell and bind to the receptors present on/in the target cells to elicit the desired response. Thereby, the signaling molecules serve in cell-cell communication.
For example, insulin hormone synthesized and released from beta cells of pancreas binds to its cell surface receptors present on the surfaces of liver cells and muscle cells to stimulate the uptake of the glucose from the blood.
Likewise, neurotransmitters released from the presynaptic neuron bind to receptors present on the membrane of postsynaptic neuron and serve to carry the nerve impulse to the postsynaptic neuron.
D.8 should be the correct answer
