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MaRussiya [10]
3 years ago
12

Which characterization accurately describes BOTH regular fossils and index fossils?

Biology
1 answer:
kompoz [17]3 years ago
7 0

Answer:

D

Explanation:

Fossils tell us where they came from.

Have a great day

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people once believed that organisms could grow food and dirt. how might the study of cells affect the view.
gavmur [86]

This is disproven by the study of cells due to plants don't grow food they making by using sunlight are and water and nutrients <em><u>from </u></em><em><u /></em><u />the soil so it cannot produce the soil due to this fact.
3 0
3 years ago
Investigator Benton uses several methods to analyze hair samples found at the crime scene. He examines the physical features of
Diano4ka-milaya [45]

Answer:

Medulla.

By analyzing the DNA extracted from the hair follicle, the medullary index and the pattern of medulla in the hair samples obtained from a crime scene, an investigator can identify the owner.

Explanation:

The hair consists of follicle and shaft. The follicle is the part of the skin, where the hair grows and the hair shaft has three layers: an inner medulla,  a cortex, and an outer cuticle.

The morphology (physical characteristics) of hair provides a broad detail on the racial background of  an individual and an investigator can identify a  group of people who share similar  traits. But the hair without follicle cells attached to it, cannot  be used to identify a specific individual. If the follicle of a hair is present, then it can lead to individual identification by DNA analysis. Also the medulla of animals is larger than that in the humans. By comparing the medullary index (the ratio of the diameter of the medulla to the diameter of the entire  hair), it can be determined if the hair obtained from crime scene belongs to animals or humans. The macroscopic (length, color, and curliness) and  microscopic characteristics ( pattern of the medulla, pigmentation of  the cortex, and types of scales on the cuticle) of the hair samples are studied during a crime investigation. If the entire hair follicle (follicular tag) is present in the hair samples found at the crime scene, the blood and tissue attached to  the follicle is extracted and analyzed using DNA profiling. DNA analysis of the hair follicle provides  an identification with greater accuracy than the hair shaft.

6 0
3 years ago
Which process in eukaryotic cells will proceed normally whether oxygen (o2) is present or absent?
VLD [36.1K]
The correct answer is glycolysis. 

Glycolysis is an anaerobic process of splitting a molecule of glucose (6 carbons) to 2 molecules of pyruvate (3 carbons each). Glycolysis does not require the presence of oxygen and will still produce energy, albeit lower than aerobic metabolism. In the absence of oxygen, fermentation can occur wherein pyruvate is further converted into lactate.
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3 years ago
AL SUMERJIRCE EN EL MAR A 30M UN BUZON EXPERIMENTARA MAYAOR PRECION QUE CUANDO LO HACE EN UNA PISINA DE SOLO 3M VERDADERO O FALS
andrezito [222]
Sorry need the points
6 0
3 years ago
Which of the follwing is a characteristic of cancerous cells?
ohaa [14]

Answer:

D

Explanation:

Cancer cells exhibit uncontrolled and disorganized growth. Formation of new blood vessels is required to bring nutrients and oxygen to cancerous tumors. Cancer cells cannot enter the cell cycle and therefore are mortal. cancer cells enter the cell cycle repeatedly, and in this way they are immortal.

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