Chemicals that help chemical reactions occur at faster rates in living organisms are known as Enzymes.
Answer:
animal cells
Explanation:
animal cells have a sort of rounder shape to them
Answer:
tiny region of the brain in the hypothalamus, situated directly above the optic chiasm.
Convergent evolution in my understanding is the independent evolution of similar features in species of different lineages.
Answer:
The correct answer is- Normal vaginal pH is acidic (4 to 5), which protects from infection.
Explanation:
The vaginal part in woman have high tendency to get infection because of moist internal condition and its location but vagina also have a protective mechanism which protect it from the infection.
A woman's vagina contains many species of Lactobacillus genus which secrete lactic acid and hydrogen peroxide that maintains the low pH level in the vagina. So due to this reason, the normal pH of the vagina remains between 4-5 which does not allow pathogenic bacteria to flourish and cause infection.
