Hydrogen bonds<span> are much weaker than covalent bond because of its bond is formed through fundamentally electrostatic interactions.
Hydrogen bonds happen due to dipole-dipole attraction while covalent bonds happen when valence electrons are shared.
Reasons why complementary nucleotides across the double-stranded dna bond together using hydrogen bonds rather than covalent bonds are (1) the distance between two strands, (2) size of the bases, (3) geometry of each base.</span>
The answer is: In recent years, scientists have discovered fossils from long ago that glaciers have hidden
Answer:
c.Endocrina
Explanation:
El sistema endocrino consta de órganos que producen sustancias químicas especiales llamadas hormonas.
Las hormonas son mensajeros químicos secretados directamente en el torrente sanguíneo que regulan diversas actividades en el cuerpo.
Por lo tanto, el sistema endocrino secreta sustancias químicas en el torrente sanguíneo.
The correct answer is - India was a separate continent until 45 million years ago.
India and Southeast Asia despite bordering one another have great differences in the flora and fauna. The reason for that is that India was a separate continent until 45 million years ago, while Southeast Asia was part of Asia. Because of the long period of isolation before the collision with the Asian mainland, the flora and fauna of India developed unique characteristics, mostly found only in India, and some being shared between India and Madagascar as it was the last land with which it was in contact before becoming a separate continent and started moving towards Asia. The differences are bigger in the southern half of India, while in the northern half they are lesser and have more similarities with the flora and fauna of Southeast Asia.
Answer:
what r we suposed to answer??
Explanation:
