Answer:
Option 2
Explanation:
don't don't hold me to this but I think it's decreased trade among countries has caused whittling world economy because that is a problem and problems are typically a push factor
Cardiovascular fitness is best described as B. the ability of the body
to transport oxygenated blood efficiently. Cardiovascular fitness is
improved by regular aerobic exercises and help to strengthen the cardiac
muscles, making the heart more efficient in pumping blood through the
body. Moreover, cardiac efficiency decreases the resting heart rate of a
person as their heart is more effective in transporting blood with each
contraction.
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Answer:
Abuse Can affect people in many ways. But also depending on how bad is it. some people dont notice right away for many reasons. These may include that She/he Maybe decides to keep that to himself. he decides to forget everything that´s going on and continue with his life and not wanting help from others. He´s scared that if she/he speaks They may get punished or are afraid that no one can help and fix the situaiton. They also decide to fake their happines by smiling to much, by telling everyone that their fine when they really arent. Its very hard to identify who´s depressed and who´s being abuse because both people who suffer from it they intend to stay away from it and not let anyone know how they feel. They decide to keep doing what they love even though they dont feel happy about it. Every person who may suffer from it can be hard to identify they are being abused for the same reasons. They fake who they are... and decide not to cause problems
Explanation: I hope this helped lol :)
Answer:
In the case of HIV-1, this loss-of-function mutation has proven to be beneficial.
Explanation:
Loss-of-function mutations are those that result in a gene product that has less or no function compared to the unmutated gene. When the allele completely loses function, (null allele), it is called an amorphous mutation. Phenotypes associated with these mutations are usually recessive, except when the organism is haploid, or when the reduced dosage of the normal gene is not sufficient to produce a normal phenotype (this phenomenon is called haploinsufficiency).
As mentioned earlier, this type of mutation results in a defective gene, but the text shown in the above question shows an example of a beneficial loss-of-function mutation because this mutation provides resistance to HIV-1 infection.
