Answer:
thymine
Explanation:
Though both RNA and DNA contain the nitrogenous bases adenine, guanine and cytosine, RNA contains the nitrogenous base uracil instead of thymine. Uracil pairs with adenine in RNA, just as thymine pairs with adenine in DNA.
It happens in every ecosystem and is natural
Answer:
Similarities: they are heterotrophic organisms
Differences: These groups are very different from each other: snakes are reptiles, while flies are insects
Explanation:
1) Snakes:
- Kingdom: Animalia
- Phylum: Chordata (organisms with a notochord)
- Subphylum: Vertebrata (vertebrae separated by intervertebral discs)
- Class: Sauropsida (respiration through lungs, paddle-shaped limbs)
-Order: Reptiles (oviparous, cold-blooded)
- Suborder: Serpentes
2) Fly:
- Kingdom: Animalia
- Phylum: Arthropoda (bilateral symmetry, exoskeletons of chitin, segmented body)
- Class: Insecta (body divided in head, thorax, and abdomen, three pairs of legs)
- Order: Diptera (compound eyes, two wings, complete metamorphosis)
-Suborder: Brachycera
Unlike ionic bonds, covalent bonds involve the sharing of electrons between atoms.
- - Final answer: <span>b. sharing of electrons between atoms.</span>