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KIM [24]
3 years ago
13

Explain how the bone patterns in mammalian limbs came about, using the theory of evolution from a common ancestor

Biology
2 answers:
xxTIMURxx [149]3 years ago
8 0
The bone patterns in mammalian limbs can be further traced to the bone structure of the Xenarthra species as far as its histology is concerned. There has been a bone compactness showing pattern most specifically in the femur area between the species of Cingulata and Pilosa.
Ksenya-84 [330]3 years ago
3 0

Answer:

Limbs are homologous construction which are serially repetitive. The  ensuing hind limb was created by the old duplication incidents, the anatomical construction of the pectoral appendages  including the genetic design has been duplicated by the ensuing hind limb  which is control of the progress of induction, working together and ddevelopment. This complementary base of the limbs has important significance for its evolution.

Quantitative genetics theory is of the notion that genetic forecast has made limbs to undergo evolution in parallel solely among the stylopod, zeugopod and autopod which are corresponding segments.This genetic intake, observed in markings of phenotypic sheathing influence the variation that is relevant to draft coupled with the total immovability of limbs.

The entire phyla amphibians, reptiles, birds and mammals are known to be pentadactyl. The availability of pentadactyl limb indicates the inheritance of the specific  trait from a single ancestor with continious modifications in the period of evolution.

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6 0
4 years ago
Read 2 more answers
ASAP NEEDED NOW NOW NOW NOW NOW !!!!! OFFERING ALL OF MY POINTS
sweet [91]

Answer:

B. Nature selects against only harmful traits.

Explanation:

Natural selection only acts on traits that impact reproductive success. Nature chooses against just unsafe attributes. The vestigial structures do not hurt the living being.

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8 0
3 years ago
What do homologous and analogous<br> structures have in common?
Anestetic [448]
They both have joints to connect may parts together.
7 0
3 years ago
Select all that apply.
alexira [117]
All of the statements above except "most only thrive in narrow range of environments," is true for the eubacteria. They are organisms that can be found in every habitat on Earth. Some of these bacteria are responsible for the diseases that we contract but they also play a large role in the Earth's ecosystems as decomposers and heterotrophs. They have genetic structures that help them thrive and survive in extreme environments. <span> </span>
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4 years ago
Photosynthetic organisms are ________. Question 10 options: decomposers that obtain nutrients from the soil consumers that obtai
ipn [44]

Answer:

producers that make their own organic matter from inorganic molecules

Explanation:

Phosynthetic organisms are those that capture solar energy and can be used in the production of organic compounds. Through this process they are able to make their own food based on something as simple as sunlight, the organisms that are in this group are: higher plants, algae, some bacteria, which can convert carbon dioxide into organic compounds and of these compounds reduce them into carbohydrates.

The energy necessary for this process to occur, is generated through the light of the same sun, which promotes the activity of these organisms for the preparation of organic compounds and their carbohydrates, which are used by cells as a source of Energy.

It is important to note that most of the foods that are consumed throughout the day and the fossil fuel that is found in nature, are a product of this process called photosynthesis. Photosynthetic organisms are considered to be the largest primary producers within the same trophic chain itself, since among them are those that produce oxygen, which are green plants, algae and some bacteria. But there are also organisms that produce photosynthesis and do not produce oxygen, among these are purple sulfur bacteria and green sulfur bacteria.

5 0
3 years ago
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