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Sati [7]
3 years ago
13

The images show fossils of a modern bird and two extinct organisms (a Tyrannosaurus rex and an Archaeopteryx). Based on the stru

cture of the three organisms, it can be concluded that . The Archaeopteryx and bird have wings, while dinosaurs have limbs. So, it can be concluded that
Biology
1 answer:
Effectus [21]3 years ago
6 0

Answer:

The Archaeopteryx and bird have wings, while dinosaurs have limbs. This fact does give us an indication that  Archaeopteryx could have been the first bird.

Explanation: While a lot of people consider it as the first bird, paleontologists do not agree with this stance. The discovery of several Archaeopteryx fossils has revealed that although the creature had wings, most of its features were distinctively reptilian. For example, the presence of a full set of teeth. Also, the formation of its wings reveals that it was actually incapable of flying. At the most, it could flap its wings and make a very short upward flight. Scientific analysis of physical characteristics places coelurosaurian theropods as the closest ancestral relatives of Archaeopteryx whereas the presence of wings makes them closely related to the modern-day birds. Thus according to the scientific community, it is safe to believe that  Archaeopteryx was an intermediary between the birds and reptiles; a precursor to the evolution of modern-day birds.  

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cricket20 [7]

Answer:

Xylem and phloem

Explanation:

Xylem and phloem are the conducting tissues of the vascular strands. Their main role is in the transportation of food, minerals, and water. Xylem is the tissue which is responsible for the transport of water in plants while the phloem is responsible for the transfer of food and nutrients in the plant.

3 0
3 years ago
5. The burning of fossil fuels has increased the carbon dioxide content of the
posledela

One of the possible effects of increased carbon dioxide concentration on our planet would be a warmer climate.

<h3>Greenhouse effect</h3>

Carbon dioxide is one of the numerous greenhouse gases that exist in nature. The gases are responsible for the warming of the planet.

Carbon dioxide and other greenhouse gases form a blanket layer in the atmosphere and trap some of the reflected solar radiations from the sun, preventing them from escaping back to space.

The more the concentration of greenhouse gases in the atmosphere, the more the solar radiation that is trapped and the warmer the earth gets.

More on greenhouse effects can be found here: brainly.com/question/13706708

#SPJ1  

8 0
2 years ago
Some snail species' shells can have right-handed direction of shell coiling or left-handed direction of shell coiling. The direc
makkiz [27]

The cross between Dd egg-snail and a dd s snail mate will result in snails with genotype 1/2 Dd:1/2 dd and phenotype all right-coiling.

<h3>What is a genotype?</h3>

The genotype refers to the allele combinations that can be found for one or more loci in an individual.

The phenotype refers to how the genes and alleles interact to produce a physical trait in an organism.

In this case, one parent can produce two types of gametes (D and d), whereas the other parent can only produce d gametes.

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4 0
2 years ago
Is glass a natural resource
aksik [14]

Answer:

yes

Explanation:

it is found in many forms in the natural world.

6 0
3 years ago
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Its C. W<span>hen rust forms on iron, the iron atoms combine with oxygen atoms in the air to form a new substance that is made of both iron and oxygen. Hope this helps!</span>
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3 years ago
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