What do u mean <span>Cystic fibrosis is controlled by recessive alleles(cc). if two parents without cystic fibrosis have a child with cystic fibrosis, what is the probability ratio that their next child will have cystic fibrosis?</span>
Answer:
r-selected species (e.g., American bullfrog)
Explanation:
The r-selected species (r-strategists) are those species in which their populations oscillate near the carrying capacity, i.e., the maximum population size sustained by a particular environment. These species are generally located in low-quality (less competitive) ecological niches and produce many offsprings that grow rapidly and have low chances of surviving to adulthood. Some examples of r-strategists include amphibians, fish, small mammals, etc. Conversely, K-selected species have more stable populations and produce a low amount of offspring (e.g., large mammals such as elephants).
Answer: A
Explanation:
Whaling is the practice or industry of hunting and killing whales for their oil, meat, or whalebone.
answer:
because it benefits the soil. the long alfalfa stand life also gives the soil a chance to rest from frequent field crop rotations, helps provide nitrogen for subsequent crops, and improves soil tilth. this helps prevent pesticide and sediment movement to natural waterways.
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