Answer:
The correct answer will be option-E.
Explanation:
Chordae tendinae are the string-like structure in the heart which is composed of dense regular connective tissue called collagen and elastin proteins. They arise from the papillary muscles of the heart and branches out in the ventricle portion of the heart.
These play an important role in the closure of the AV valves to prevent the backward flow of the blood to the atria during ventricular contraction by holding cusps of the valve into the dome-shaped structure.
Thus, option-E is the correct answer.
Answer:
B, C, D
Explanation:
The following statements are true regarding the continental crust;
It is between 25 and 70 km thick
Its made of all types of rocks
It contains silicate minerals high in sodium, potassium, aluminum, and calcium
Answer:
<h2>Reduced ability to colonize the mammalian gut.</h2>
Explanation:
The Entner-Doudoroff Pathway (ED Pathway) is a metabolic pathway that is most notably in Gram-negative bacteria, some + bacteria and archaea. Glucose is the starting molecuke in the ED pathway and through a series of enzyme assisted chemical reactions it is catabolized into pyruvate.
Those mutants of E. coli lacking a key enzyme in Entner-Doudoroff (ED Pathway)Pathway leads to reduced ability to colonize the mammalian gut.
Answer:in
Effect of small numbers of individuals on changes in the frequencies of an allele
Explanation:
By definition population genetics studies the changes in genetic variation of a population, this involves the modelling of changes in the frequencies of genes and alleles.
For example if an organism is born with a color that enhances its reproduction that population may change drastically in appearance, on the contrary if the allele causes a genetic disease, the population numbers might decrease.
The surface tension is the result of the tendency of water molecules to attract cohesion.
