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Artemon [7]
3 years ago
9

!!????????????!!!!!!!!!!!!!?!?!?!?? giving brainliest !

Biology
1 answer:
ArbitrLikvidat [17]3 years ago
6 0
The answer is A, the screw and lever. Hope you do well
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The following table shows the kinds of seed that are commonly eaten by four types of birds. In the table, an X indicates that th
kondaur [170]

Answer: Pigeon X X

Explanation:

Idk?

6 0
3 years ago
In the family tree below, people with the recessive trait of attached earlobes are shaded gray.
maks197457 [2]
The first thing that could help you is that squares are male and circles are female, which means that C and D are incorrect.
Now, <span>the sister has attached earlobes, so both parents must have the recessive allele along with the dominant, which means that the child has both recessive and dominant as well. This means that the correct answer is A. </span><span>It is a male with at least one dominant allele.</span>
6 0
4 years ago
Read 2 more answers
Small, isolated groups of Central American Indians are nearly 100% type O for the ABO blood system. This is best explained as be
tiny-mole [99]
For me I’ll say b artificial selection
5 0
3 years ago
The shape of a protein molecule is influenced by
Rus_ich [418]

Answer:

The answer is C. its sequence of amino acids.

The protein's shape is influenced by its sequence of amino acids or primary structure.

Explanation:

The primary structure of a protein molecule is dependent on the amino acid chain sequence it has. The amino acid chain's <u>linear</u> structure is composed of <u>covalently bonded</u> amino acids via peptide bonds. This serves as the <u>overall backbone </u>of the protein.

<h3>Additional notes: </h3>

Secondary structure of protein

It defines the 3-dimensional shape of the<u> locally folded polypeptide</u>. They come in two forms, the alpha helices and beta sheets. During the formation of the primary structure, acidic and basic amino residues may cause kinks and turns, re-configuring the 3-D shape of the local polypeptide.

Tertiary structure of protein

This determines the overall 3-dimensional structure of the protein. The structure is due to the <u>linking of the R groups</u> of the related amino acids, <u>hydrophobic bonds</u>, and <u>disulfide bonds</u>. These bonds are <u>highly stable</u> and are not easily changed or destroyed.

Quaternary structure of protein

It is a structure that consists of multiple folded polypeptide chains or subunits. This allows the protein to have m<u>ultiple functions</u>. <u>Non-covalent forces</u> keep these structures together, making it <u>prone to rapid conformational changes.</u>

8 0
4 years ago
A scientist measures the weight of two different animals one is 250 grams and the other is 330 grams in milligrams what is the d
ASHA 777 [7]
For the first animal: 250x1000=250000 mg

for the second animal: 330x1000=330000 mg

to find the difference: 330000-250000=80000 mg (which is your final answer)
6 0
4 years ago
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