false, because if you add additional organisms, the food web would become lopsided, causing the organisms food to decrease.
Answer:
living: predataors- frogs, bigger fish, birds, bears(depends on location),
prey- insect, algae, seaweed, snails
nonliving: pollution, amount of oxygen in waters, pH levels
Explanation:
In the simulation, the brightness of the guppies is directly related to
how fast they are consumed by predators. This phenomenon is explained
simply and reflects natural selection. The brighter guppies are at a
selective disadvantage due to the ease with which predators are able to
spot them. The darker colored guppies are able to avoid predator better
so they live fore a longer time.
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Ans.
Sex-linked genes are those genes that found on sex-chromosomes (X and Y chromosomes) and their phenotypic expression for a trait depends on the gender of the offspring.
Most of the sex-linked genes are present on X chromosomes as X chromosomes have more number of genes as they are made up of more DNA as compared to Y chromosome.
However, male individuals are more likely to exhibit the sex-linked traits. It is because most of the sex-linked traits are recessive and males have only one copy of X chromosome, while females have two copies of X chromosome. One mutated copy in male can exhibit the trait, while in females, both of the mutated copies are required to exhibit that trait.
