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Maurinko [17]
2 years ago
15

How did stromatolites contribute oxygen to the early atmosphere?

Biology
2 answers:
Neko [114]2 years ago
8 0

How did stromatolites contribute oxygen to the early atmosphere?

by weathering of rocks

through photolysis

through methane degradation

through photosynthesis

Answer:

by weathering of rocks

pls rate 5star + thanks

SashulF [63]2 years ago
5 0

Answer:

By weathering of rocks

Explanation:

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According to the mohs hardness scale shown on the left, which mineral can scratch fluorite but be scratched by quarts
slamgirl [31]

Answer:

Apitite

Explanation: Apitite has a hardness of 5 it can scratch flouride but Quartz has a hardness of 7 meaning it can scratch Apitite

7 0
3 years ago
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Peroxidase is a protein. What is this protein’s function, and how did it get its name?.
Olin [163]

Answer:

Most peroxidases are ferric heme proteins; one notable exception being the glutathione peroxidase, which is a selenium-containing enzyme. They are present in virtually all living species.

Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.

3 0
2 years ago
You cross two red griffins with blue eyes and produce offspring that are: red with blue eyes, red with green eyes, white with bl
sergejj [24]

Answer:

The reason for the offspring to present these genotypes is that during the formation of the gametes, the alleles separate and are inherited independently, therefore they can generate several different phenotypic combinations.

Explanation:

In order for an offspring to present very different phenotypes, as shown in the question above, it is necessary that the two red griffins with blue eyes that were crossed are heterozygous. Thus it will be possible for the offspring to present a wide variety of phenotype, according to Mendel's second law.

Mendel's second law is called the Law of segregation. This law explains that the alleles (which determine the characteristics of individuals) are separated in the formation of gametes and inherited by the offspring of a cross independently, and can generate different combinations of phenotypes, when the parents of a cross are heterozygous.

8 0
3 years ago
Which of the following statements is true?
mr Goodwill [35]

Answer:

Spongy bone is well adapted to accept stress in many directions, which makes it good for shock absorption

Explanation:

Spongy bone tissue is less compact and always present towards the interior of the bone and is covered by compact bone. Spongy bone tissue has lamellae that are arranged in an irregular pattern. The thin irregular columns of lamellae are called trabeculae.

The trabeculae of spongy bone tissues are precisely arranged along the line of stress. This feature of spongy bones allows them to resist the stress applied from many directions and to transfer the force making them a good shock absorber. The final arrangement of trabeculae is achieved only after the person learns the locomotory movements completely.

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3 years ago
How are protista similar to bacteria​
matrenka [14]

Answer: they are mostly single celled organisms and they usually reproduce A-sexually.

6 0
3 years ago
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