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My name is Ann [436]
3 years ago
14

A keystone species affects relative abundance of species in a community at

Biology
1 answer:
Shalnov [3]3 years ago
7 0

Answer: a. the lowest trophic level

Explanation:

The keystone species is the one on which the entire ecosystem depends upon. It maintains a balance in the ecosystem. If this species is removed the ecosystem will drastically change. The members of the keystone species are abundantly available at the lowest trophic level. This will help in making a balance in a community or ecosystem. If some members die others will be available to survive others.

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inheritance of biological characteristics is determined by individuals units known as genes. In organisms that reproduce sexuall
nasty-shy [4]

Answer:

Principles by Mendel

Explanation:

The heritage principles of Gregor Mendel are at the core of modern genetic engineering. Mendel has created three heritage principles by conducting experiments with pea plant breeding, which described the passing on of genetic characteristics before anyone thought that genes did exist.Mendel referred to this components as "elementen" and suggested that, throughout sexual reproduction, each parent contributes a form of elementary elementen to the resultant offspring. This blend of parental elementen then defined what type of characteristic was noticeable in the descendants.

Genetic concepts are laws or guidelines regulating the biological heredity process, the transition of parents' to children's attributes by information that is biochemically transmitted by DNA, to gene units.

6 0
3 years ago
Normal Gene:A T C AT A G G A A A AT AC
Paha777 [63]

Answer:

Normal Gene: AUC  AUA  GGA AAA UAC

Mutated Gene:   AUC  ACA GGA AAU UAC

Explanation:

The transcription takes place in the nucleus. This process involve copying of DNA sequence into mRNA (messenger RNA) sequence. mRNA too consists of 4 nucleotides except the fact that in mRNA the thymine (T) is replaced by uracil (U). This involves the following steps:

  • Unwinding of DNA
  • Binding of RNA polymerase to the unwinded DNA.
  • Synthesis of RNA commonly mRNA
  • RNA elongation
  • Stop codon (UAA, UAG, UGA) initiating termination of synthesis of RNA
6 0
3 years ago
Where is the genetic material located in the cells?
Marrrta [24]

Answer:

The cell nucleus

Explanation:

4 0
3 years ago
Which type of shift in plate boundaries creates ravines in the ocean floor?
goldenfox [79]

Answer:

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.

Explanation:

6 0
3 years ago
What occurs during the process of meiosis in humans that can lead to a child with the condition of Down syndrome?
Talja [164]
There will end up being an extra chromosome
4 0
4 years ago
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