Answer:
an autotroph is a <em>producer</em> in the food chain
Explanation:
An autotroph produces its own food from light, heat, and/or environmental chemicals, often including water and/or carbon dioxide. It is a <em>producer</em>, not a consumer, in the food chain.
Correct answer: Habitat Destruction
Habitat destruction affect the entire habits functionally and it is unable to support the species present in that particular region. The main cause of species extinction all over the world is habitat destruction.
Humans are known to cause extinction of the species by creating pollution, overhunting, by introducing invasive species into the ecosystem etc
Taproot & fibrous those should be your answers
1) Four Helixes in a double chromosome [ 2 for each strand ]
2) Centromere is t<span>he region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
3) </span><span>A </span>homologous pair<span> is a </span>pair<span> of chromosomes containing a maternal and paternal chromatid joined to together at the centromere
4) End result = 12 pair of chromosome which is unindentical to each other.
5) Crossing over is </span><span>the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.
Crossing over occurs during prophase I in nucleus of the cell [ as it is operation of chromosomes ]
</span>Crossing over<span> creates new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity. So, it is so important for Genetic diversity
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Hope this helps!
