Answer:
Most lethal genes are recessive. ... One coat color of ranch foxes is caused by a recessive lethal gene. This gene causes a death if both recessive alleles are possessed by the same individual. Recessive lethal alleles do not cause death in the heterozygous form because a certain threshold of protein output is maintained.
Explanation:
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Stratigraphy is the study of rock layers. By knowing the number of rock layers under the ground, it is easy to predict how old the ground, or in this case, the Earth is.
Answer:
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Explanation:
Animals survive in deserts by living underground or resting in burrows during the heat of the day. Some creatures get the moisture they need from their food, so they don't need to drink much water, if any. Others live along the edges of deserts, where there are more plants and shelter.
Even though deserts don't get much rain, the desert is a habitat for some plants and animals. Each species has adapted to be able to live in a range of temperatures and without much water. ... Animals that live in deserts include lizards, geckos, toads, jackrabbits, camels, snakes, spiders and meerkats.