Please help me ASAP TvT How does crossing-over result in genetic recombination?

- It permits the exchange of genetic material between homologous chromosomes.

- It reduces the original cell’s chromosome number by half.

- It mixes half the maternal chromosomes with half the paternal chromosomes.

- It randomly separates the maternal and paternal chromosomes.

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body

Pls in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.