Why is organ transplant surgery so difficult

Which of these statements are true about scientific theories and hypothesis

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

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.