Answer: A semi-permeable membrane is that which only allows certain
substances to pass through.
I think b.only select generation are effective...
The statement that when consumed together, grains and legumes are good complementing protein sources is true.<span>
</span><span>Legumes are plants that include beans, lentils, peas and peanuts, while grains are </span><span>wheat, oats, corn, rice..</span><span>
They are less expensive than meat, poultry and fish.
</span>When eaten together provide a complete protein essential for health.
Allele frequency:
Number of times an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene
I would assume it is neutral stimulus but I may be wrong
