Answer:
chromosome
Explanation:
A chromosome consists of entire set of genes with in an organism’s total population.
DNA with is a chromosome is arranged in a discrete short and wide units. A chromosome consists of millions of DNA base pairs which consists of large number of genes. The chromosome structure comprises of double helix DNA wrapped around proteins. DNA with in chromosome provide basis for chromosome synthesis.
1.underground stem -- for storage of food ex. potato , ginger.
2.spines for protection ex. citrus , bougainvillea
Bacteria have different phage resistance mechanisms, such as spontaneous mutations, the CRISPR-Cas system.
Spontaneous mutations are the main mechanisms leading to phage resistance by altering the structure of bacterial wall components that act as phage receptors. These include lipopolysaccharides (LPS), outer membrane proteins, cell wall teichoic acids, capsules, and other bacterial components.
Answer:
Barroreceptors are specific type of receptors that are present within the membrane or wells of the blood vessels and monitor the changes occur in blood pressure.
The major and important barroreceptors are located in carotid sinus and the aorta for detecting fluctuation in the blood pressure. If blood pressure falls these receptors firing rate decreases and barroceptors reflexes act to increase heart rate in order to restore blood pressure in an individual.
Thus, the correct answer would be - increasing heart rate.