Which is not true about polyploidy

a
b
c
d

please help!!!

3rd option

Explanation: How does an organism become polyploid? Polyploids arise when a rare mitotic or meiotic catastrophe, such as nondisjunction, causes the formation of gametes that have a complete set of duplicate chromosomes. Diploid gametes are frequently formed in this way. In fact, polyploidy exists across all major taxonomic animal groups and occurs even relatively frequently among some groups, particularly in fish and amphibians.

the answer is b: 1.4 km/hr

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.