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Naya [18.7K]
3 years ago
12

Four groups of scientists, in different parts of the world, are dating fossils found in a rock layer of the same geologic time p

eriod. To validate the age of their fossils, the results of their tests would need to be:
complex
identical
inconsistent
non-testable
Biology
1 answer:
zaharov [31]3 years ago
8 0

Answer:

The result should be identical.

Explanation:

As fossils gives us information about geological time period and also gives us information about the vegetation,types of animals or plants that were available at that time,their genetic information etc. If any fossils are found in a rock layer  of the same geological time,should be examined first and check whether they are identical or not.

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_____are specialized photoreceptors that work well in low light conditions.
Aleksandr [31]

Answer:

Rods

Explanation:

Rods are specialized photoreceptors that function best in low-light conditions. They are a major part of our vision in dimly lit environments, as well as our perception of movement in our peripheral vision.

8 0
3 years ago
A land developer and several ecologists are discussing how a parcel of private land should be developed with housing while savin
FromTheMoon [43]

Options for the question have not been provided. They are as follows:

A) The single intact parcel would have a smaller amount of edge than the 20 separate parcels.

B) The isolated hectare plots increase the ability of individuals to disperse from one habitat to another.

C) The separate 1-hectare plots are less vulnerable to edge effects.

D) The large plot will create more inbreeding in many species.

Answer:

A) The single intact parcel would have a smaller amount of edge than the 20 separate parcels.

Explanation:

In the given case, 20 hectares of land has been allocated to natural habitat. This means that natural flora and fauna will flourish here without any human interference. In this situation it is better to have an intact 20 hectares area at one side of the land, rather than having 20 separately spread out 1 hectare areas. This is because having one large piece of land at one side will reduce the edge effect.

Edges occur where two different habitats meet. While edges can be beneficial when it comes to natural habitats because the boundary habitat increases overall biodiversity, it can be detrimental when the edges are due to human settlements. It will be difficult to avoid human interference as the natural habitats are scattered among human settlements. Each individual plot will also get less area due to which it will be difficult for all the species to accommodate comfortably. Many animals can venture out in search of food which can be dangerous to both animals and humans. It is better to have a big separate land at one corner so that everyone can survive peacefully.

3 0
3 years ago
Original DNA strand: ATT GAG CC Mutated DNA strand: ATT GAG CT What type of mutation does the example above demonstrate?
otez555 [7]
The first mutation is substitution and the second is deletion
4 0
3 years ago
Describe the steps that bone goes through as it heals from a break.
lyudmila [28]

Answer:

Explained

Explanation:

Bone healing has three main processes and these stages are overlapping to each other. These processes are inflammation,bone production and bone remodeling.

Inflammation occurs immediately after the fracture and last several days. It enables clotting of blood. It provides initial structure stability and framework for new bone formation.  

Bone production occurs when the clotted blood formed by inflammation is replaced with fibrous tissues and cartilage as soft callous.

Bone remodeling is the final stage of the bone healing and it goes on for several months. Bone continues to form and compact. Bones returns to its original shape and the blood circulation in that area improves.

8 0
3 years ago
how would the second row of values in the plant experiment most likely compare to the second row of values in the original exper
timurjin [86]

The second row of values in plant experiment most likely to have "high oxygen level and carbon  dioxide level would be the same".

Explanation:

The procedure by which living things convert oxygen and glucose to water and carbon, accordingly yielding vitality is called photosynthesis. It does not require the nearness of daylight and is continually happening in living life forms. Cell breath occurs in the mitochondria of cells.  

Through these procedures, plants get the carbon dioxide they need, and living life forms get the oxygen they need. They are additionally crucial to the vitality trade that living things need to endure.

4 0
3 years ago
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