Can some one help me out please

Biology

1 answer:

slavikrds [6]3 years ago

3 0

Answer:

1. DNA Based Answer: Even though the structure of DNA is the same for everyone, each person has a different sequence, or order, of base pairs in their DNA. This makes everyone's DNA different/unique.

Personal Based Answer: Things that make you different from everyone else would be your attitude, the way you talk, the way you walk, the way you dress, the things you like to do, etc.

2. Genes help to form traits, more than one gene can create a certain trait. Sometimes genes contain genetic abnormalities, or acquired mutations, which influence haw traits develop. Within genes, DNA contains 4 building blocks. (Adenine, cytosine, guanine, and thymine)

Hope this helps

Have a nice day((:

Explanation:

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Answer:

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Explanation:

An innate behavior which specific to a species and is highly stereotyped is termed as a fixed action pattern.
This behavior occurs due to a neuronal network that is hard-wired in the species and the response is said to be generated following a key stimulus.
A key stimulus is the one that generates a fixed action pattern and this is also called a releaser.
A key stimulus can be in the form of shape, sound, color, or a combination of these.
In this case, the red spot is a stimulus for the chicks which causes them to peck at their parent's bill, and hence, the red spot is a key stimulus, and pecking of the chicks is a fixed action pattern.
The parents regurgitate the food only when the chicks peck at their bills, so pecking is a key stimulus for the parents which causes them to regurgitate the food which is a fixed action pattern.

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