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Elis [28]
3 years ago
7

So-called "dark matter" cannot be directly observed because

Biology
2 answers:
Inga [223]3 years ago
5 0

Answer:

B. it gives off no radiation

Explanation:

Dark matter is so named because it neither absorbs nor emits light and therefore cannot be directly observed.

Ghella [55]3 years ago
5 0

Answer:

B

Explanation:

it gives off no radiation

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When a protein denatures, which type of bonding is effected?
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Answer:

When a protein is denatured, secondary and tertiary structures are altered but the peptide bonds of the primary structure between the amino acids are left intact. Since all structural levels of the protein determine its function, the protein can no longer perform its function once it has been denatured.A protein becomes denatured when its normal shape gets deformed because some of the hydrogen bonds are broken. Weak hydrogen bonds break when too much heat is applied or when they are exposed to an acid (like citric acid from lemon juice).

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The following are steps used to construct a cladogram that best reflects the evolutionary relationships of a group of species. W
svetlana [45]

Answer:

Apply the principle of parsimony

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