I would break the bones and see what kind of fossils are inside
Answer:
I. evolved from ancestors that walked
Explanation:
Whales and pythons have vestigial structures, which are structures (hind legs) which are no longer useful to them since they have evolved. The ancestors of the whale and python did use the hind legs but over generations the whale and snake have adapted to new environments and they no longer need them.
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
<u><em>Definitions:</em></u>
<u><em></em></u>
<u>Predation rate</u>
is the annual mortality within. a population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator strategies. Predation risk, on the.
<u>random mutations:</u>
What is commonly called "random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.
<u>competition:</u>
the activity or condition of competing.
<u>environmental changes:</u>
Examples of these global environmental changes include climate change, freshwater shortages, loss of biodiversity (with consequent changes to functioning of ecosystems), and exhaustion of fisheries.
The answer you are looking for is called Serotonin. Please put this as the brainiest answer thank you and hope this helped.
Answer: bahadur shah zafar
Explanation:
