Answer:
Means to increase drag and prevent sinking is the correct answer.
Explanation:
Plankton avoid sinking by increasing their surface area and decreasing their density. Spines slow down sinking by adding surface area without increasing density. Defense against predation would be to sing below. Not the opposite.
I could help if I knew what you needed help with
I think that genetic engineering is a good idea because it helps cure deseases that people cant cure, and could possibly cure cancer some day.
Hope my oppinion helped!
Answer:
Results are validated when other scientists performs the same experiment and conclude with the same result.
Explanation:
Experimental evidence gives confirmation especially in science.Scientists starts an experiment by following some protocols such as observation,hypothesis,collection of data literature review,methodology,Experiments (trial and tests) finally results and discussion.Results are validated as experimental evidence. Eventually come to a conclusion.
Gene mapping describes the methods used to identify the locus of a gene and the distances between genes. The essence of all genome mapping is to place a collection of molecular markers onto their respective positions on the genome. i hope this helps.
