Answer:
topical, chronological, spatial, cause-effect, and problem-solution sequence.
Explanation:
Https://lrnx.k12.com/lrnx-ui/student/index?keyCode=P9Q9C9C9G9I97-U9H99-H9W-89L-L-L-J-C9M9U9F9B909F9U....https://lrnx.k12.com/lrnx-ui/student/index?keyCode=P9Q9C9C9G9I97-U9H99-H9W-89L-L-L-J-C9M9U9F9B909F9U...
Answer:
D. Yes, two hydrogen bonds could form between thymine and cytosine.
Explanation:
A hydrogen bond (often informally abbreviated H -bond) is a primarily electrostatic force of attraction between a hydrogen (H) atom which is covalently bound to a more electronegative atom or group, particularly the second-row elements nitrogen (N), oxygen (O), or fluorine (F)—the hydrogen bond donor (Dn)—and another electronegative atom bearing a lone pair of electrons—the hydrogen bond acceptor (Ac).
The formation of stable hydrogen bonds depends on the distance between two strands, the size of the bases and geometry of each base. Stable pairings occur between guanine and cytosine and between adenine and thymine (or adenine and uracil in RNA).
One hydrogen bond could form between the C4 carbonyl group on thymine (a hydrogen bond acceptor) and the C4 amino group on cytosine (a hydrogen bond donor). Another hydrogen bond could form between N3 of thymine (a hydrogen bond donor) and the N3 of cytosine (a hydrogen bond acceptor). Note that the C2 carbonyl groups found on both bases are both hydrogen bond acceptors and therefore a hydrogen bond cannot be formed between them.
Answer:
Articular discs or menisci, Articular fat pads
Explanation:
Articular discs or menisci - the fibrocartilage pads between opposing surfaces in a joint.
Articular fat pads - adipose tissue pads that protect the articular cartilage, as seen in the infrapatellar fat pad in the knee.
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It can affect the environment because it could absorb into the ground and contaminate the groundwater, then this could runoff into a pond, river, lake, etc., which would then contaminate that water source. This also negatively impacts wildlife because they rely on these water sources to drink water, bathe, and/or catch food (ex: a bear catching a fish in a river).