Answer:
One of the central conclusions Mendel reached after studying and breeding multiple generations of pea plants was the idea that "[you cannot] draw from the external resemblances [any] conclusions as to [the plants'] internal nature." Today, scientists use the word "phenotype" to refer to what Mendel termed an organism's "external resemblance," and the word "genotype" to refer to what Mendel termed an organism's "internal nature." Thus, to restate Mendel's conclusion in modern terms, an organism's genotype cannot be inferred by simply observing its phenotype. Indeed, Mendel's experiments revealed that phenotypes could be hidden in one generation, only to reemerge in subsequent generations. Mendel thus wondered how organisms preserved the "elementen" (or hereditary material) associated with these traits in the intervening generation, when the traits were hidden from view.
Depression is the most common mental health diagnosis
The most effective way to keep dry land from becoming more arid is to use sustainable agricultural practices.
The right answer is "plant a tree belt"
The event of increasingly arid dry land or desertification is an event where the land becomes a very dry lack of water, vegetation, and also wild animals.
Answer:
1. Down Syndrome - Caused by an extra copy of chromosome 21
2. Klinefelter Syndrome - Boys with extra x chromosome(s)
3. Turner Syndrome - Girls lacking a second x chromosome
I'm pretty sure that the answer is C
