Answer: herbaceous plants are plants with very flexible stems. Their leaves and stems die down to soil level at the end of every growing season amd woody plants are plants with very strong and not easily bendable stems such as trees. Woody plants produce wood as a structural tissue
Answer: The action of a neurotransmitter at the postsynaptic cell is terminated by the following: enzymatic degradation, diffusion or reuptake into the presynaptic cell by specific transporters.
Explanation: After a neurotransmitter has bound to its receptor on the postsynaptic membrane and triggered a biological response, in order to avoid over stimulation of the receptors, the neurotransmitter is either degraded by specific enzymes or taken back to the presynaptic cell into the synaptic vesicles by action of specific transporters. This mechanism is to maintain a balance (homeostasis).
Nutrients attach themselves to diffusion molecules outside of the cell and these molecules will then carry the nutrients across the cell membrane and release them into the cell.
Spindle fibers form in cell divison
Answer:
Explanation:
Adenine an Guanine are purines while cytosine and thymine are pyrimidines.
According to Chargaff's rule, the ratio of purines to pyrimidines is equal.
Thus, the number of cytosine (C) will be equal to the number of guanine (G).
As it is given that the number of guanine-containing nucleotides = 410
Thus, G = C = 410
Now, G + C = 410 + 410 = 820
The number of adenine (A) will be equal to the number of thymine (T).
Thus, A + T = Total number of nucleotides – Nucleotides containing G and C nitrogenous bases
= 1500 – 820 = 680
Therefore, A = 340 and T = 340
The number of adenine will be equal to number of thymine, which is 340.
Therefore, Number of pyrimidines that the segment possess = C + T
= 410 + 340 = 750