Answer:
2nd one
Explanation:
crop rotations with nitrogen fixing crops such as legumes and some cover crops, can help put nitrogen back into your soil naturally. this makes soil healthy and can increase yields
Rapid cooling produces small crystals, and slower cooling produces large crystals.
Hope this helped!
Robert Steve and James are three new organisms ( lizard species ) Steve can breath under water he has scaly moist lizard skin a long strong tail and very sharp claws weighs 20 pounds and is 6ft long Steve prefers to eat small fish.
Robert can't breath under water has scaly dry lizard skin very sharp teeth and is very poisonous he has night vision weighs 5 pounds and is 2 ft long he mainly eats small bugs like lies and wasps.
James on the other hand is completely different he has is 10 feet long weighs 180pounds can run 5 miles per hour has powerful jaws that can break bones he has razor sharp teeth and claws and poisonous spit he has a smell radius of 15 miles and is a very heavy set he also prefers to eat big land animals like deer he's a Carnavor.
all of these Organisms are in a similar species (Lizard) and have similar characteristics ( Like scaly lizard skin and sharp claws) but they all have different traits and abilities.
I Hope this helped you.
Answer:
No. The probability of a dominant allele to be lost is less compared to the probability of the dominant allele.
Explanation:
The loss of alleles during the generations occurs during cases of natural selection, where individuals who have characteristics favored by the environment survive. However, natural selection acts on the phenotype of individuals and not on the genotype (where the alleles are). Thus, the probability that a phenotype caused by the recessive alleles will be lost over the generations may be greater than the probability that a phenotype caused by a dominant allele will be lost. However, the probability that this recessive allele will be lost is almost nil.
Let's look at an example: As we know, recessive alleles are only expressed in the phenotype if they are hom0zygous, that is, in pairs formed by two recessive alleles. However, heterozygous alleles (pairs formed by a recessive allele and a dominant allele) will express the phenotype determined only by the dominant allele. In this case, a population of lizards that have the dominant allele "A", for green lizards and recessive allele "b", for red lizards, will present individuals with the "AA" (green), "Ab" (green color) and "bb" (red color) allele pairs. If these lizards lived in the grass, natural selection would allow only green lizards to survive, as they would not be seen by predators. The red lizards would die and would not pass on the "bb" genotype for the next generations, but the recessive "b" allele would continue to be passed on to the next generations because it is part of the individuals with the "Ab" genotype that survived. If the grass were red, natural selection would allow the red lizards to survive, as they would not be seen by predators. Likewise, the recessive allele "b" would be passed on to the next generation, but the same would not happen with the dominate allele "A", which would be lost.
Answer:
If more trees grew, the darker coloring of frogs would be more likely to survive. If the trees were cut down, the lighter variation of frogs would be more likely to survive.
Explanation:
Darker colored frogs would be harder to spot in the shade of the trees and survive and through natural selection, their genes would pass on. Same thing applies to the lighter colored frogs without the shade of the trees.