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velikii [3]
3 years ago
6

The diagram shows the fossils found in different layers of a rock.

Biology
2 answers:
puteri [66]3 years ago
8 0

Answer:

The answer is the last one

Layer D is the youngest layer

trasher [3.6K]3 years ago
7 0

Answer: C

Explanation:

idk y

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____ happens when a lineage splits into two or more lines of descent.
Evgesh-ka [11]

When a lineage splits into multiple line of descents, then, it leads to speciation. It is a process by which a single population evolves into different species.  The process of speciation leads to the development of two or more species as  the lineages are splitted. These two evolved species are genetically independent.

Hence, the blank can be filled with 'speciation'.

4 0
3 years ago
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Digestion breaks carbohydrates down into basic subunits (“building blocks”) called:
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The monomer of carbohydrates, monosaccharides. 
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Staphylococcus aureus is grown in heart-infusion broth at 37°C. If you start exponential phase with 100 cells, and after 90 minu
Nikolay [14]

Answer:

30 minutes

Explanation:

Bacteria reproduce by binary fission, a process by which one parent cell divides to form 2 progeny cells. Because one cell produces 2 progeny cells, bacteria are said to undergo exponential ( logarithmic) growth.

As in the case of staphylococcus aureus, we start with 100 cells ,  and after 90 minutes number becomes 800 that means  , firstly the cells doubled (100 x 2 = 200 ) after 30 minutes. Again after 30 minutes they doubled ( 200 x 2 =400 ) and again after 30 minutes they doubled (400 x 2 = 800). So in 90 minutes 100 cells became 800 cells.

Hence the generation time for S.aureus is 30 minutes.

8 0
3 years ago
Damaged small blood vessels beneath the skin following blunt trauma causes: A: cyanosis. B: hematoma. C: mottling. D: ecchymosis
Zarrin [17]

Answer:D:Ecchymosis

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When small blood vessels beneath the skin are damaged, blood seeps into the soft tissues. This manifests as a bruise, also referred to as ecchymosis

6 0
2 years ago
Please help me with this question please
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