Answer:
Oxygen to us, climate/weather patterns, and provides us with seafood
Explanation:
<span>cytotoxic t-cells I believe is the answrer cause they work alobg with helper t cells</span>
Answer: B The leaves are dark green
C The leaves are needle-like
D The leaves are attached to the stem
Explanation:
Answer:
Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity. During crossing over, part of one chromosome is exchanged with another. ... Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.