What’s the question please? I’d like to answer but I’m a bit confused
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
The statement above is TRUE.
Depressants has many negative effects, these include depression, chronic fatigue, breathing difficulties, sleep problems, etc.
Long time use of depressants can affect the immune system, weakening it considerably and making the body susceptible to many diseases including cancer.
Answer:
Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele.
Explanation:
Answer: The population will evolve, leaving only those genetically equipped to deal with low oxygen levels. brainliest
Explanation: