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KiRa [710]
2 years ago
10

Based on morphological and molecular data, researchers hypothesize that the split between dugongs and proboscideans likely occur

red between 48 and 34 million years ago. Explain how molecular data from fossils and living organisms would support the existence of an evolutionary relationship between dugongs and proboscideans.
Biology
1 answer:
sineoko [7]2 years ago
0 0

Answer:

Both molecular and morphological comparisons among dugongs and proboscideans species should be conducted

Explanation:

From a molecular biology point of view, it is possible to compare the sequences of dugongs and proboscideans and thus observe the homology level between genes of interest, it in order to establish evolutionary relationships among species. Moroever, by mass spectrometry (MS), it is possible to compare proteins in fossils >1 million years, these comparisons may shed light on the evolutionary origin of one group

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Amiraneli [1.4K]

Answer:

<em>The correct option is C) direction of force</em>

Explanation:

In the terms of physics, force can be described as a push or pull on an object which allows the object to either move forward or backwards or in other directions.

When Dr. Jeff uses the fire extinguisher of the skateboard to move forward, he will require the same force to move backward but in the opposite direction. Hence, for moving backwards, the only thing required by Dr. Jeff to move backwards will be the direction of the force.

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5. Michael wanted to see what kitchen cleaner worked best for cleaning her counters. He used
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Yeah it haves to be C if not then it could be b I think but I probably more positive with c
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Sandra is an avid hiker. She’s found three rocks while hiking near the Camden Gorge. Help her identify which type of rocks they
MaRussiya [10]

Rock A = It is a metamorphic rock that  experienced tremendous heat  and  pressure due to massive,  moving tectonic plates.

Metamorphic rocks are rocks that have been somewhat squished and transformed by heat and pressure. These rocks often have different layers as the rocks go through pressure and are literally look like rocks that have been piled up and then stuck together. The best indicator of this rock being a metamorphic rock is the wavy elongated stripes. The stripes are created from the different rock elements being pressed together over time.

Rock B = It is a sedimentary rock made  primarily from lithification of  organic material.

Sedimentary rocks are rocks that have been formed by different substances that come together due to the different weather conditions. The best indicator of this being a sedimentary rock is how the rock came together and looks like a bunch of shells were glued together.

Rock C = It is an igneous rock that  was formed above  Earth’s surface.

Most igneous rocks have smooth outer layers. These rocks are often made with solidified magma from volcanoes. The best indicator of this being an igneous rock is the indication of it being a solidified piece of magma.

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Luda [366]
<h2>Maternal effect</h2>

Explanation:

In maternal effect the phenotype of the progeny is decided by the genotype of the mother

  • The female partner is one step ahead to her male partner
  • The ovum transcribes some of its nuclear genes prior to fertilization and these genes are responsible for the development of embryo that is why these genes are called maternal effect genes
  • This effect is observed in Drosophila

In the given question both male and female have brown eyes with Nn genotype,phenotype of the offspring will be decided by the genotype of mother(Nn) hence despite of having recessive genotype(nn) all the offsprings will show brown eyes

6 0
2 years ago
Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? A. Directional selection
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Answer;

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