The answer is stabilizing selection.
<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>
Stabilizing selection favors heterozygotes Ss, disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.
<span>She placed a food source = 7 meters (m) from the nest
</span><span>she then takes ants from the nest and places them in a spot that is 4 m from the nest and 3 m from the food source
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The answer is that the ants are expected to start searching for their nest on their return trip "<span>after they have traveled 3 m from the food source".
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Ribosomes<span> are usually found in the rough endoplasmic reticulum, but can also be found throughout the cytoplasm.</span>The job of the ribosome is to make new proteins. If all of a cells ribosomes were weakened, the cell would be unable to make new proteins.
It is the Flow of energy, where R is the energy used in Respiration by the organisms, whose magnitude with Gross production equals to Net production.
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.
