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Ostrovityanka [42]
3 years ago
11

A fossil is any natural evidence of prehistoric life that provides some idea of the size, shape, or form of the organism. A foss

il does need not to be a whole animal or plant. Broken fragments are also fossils, as are the tracks left behind by the organisms. Fossils provide important evidence of how life and environmental conditions have changed. The fossils found in rock formations of different time periods differ because the environment on Earth has changed.
A paleontologist discovers a rock slab on which the footprints of a Pennsylvania dinosaur are well preserved. What does this fossil tell us about Pennsylvania?

A) rocks used to be really soft
B) you need bone to make fossils
C) animals are preserved as fossils
D) there was a time in Pennsylvania history when dinosaur existed
Biology
1 answer:
ArbitrLikvidat [17]3 years ago
7 0

Answer:

The correct answer is option (D) there was a time in Pennsylvania history when dinosaur existed.

Explanation: A paleontologist discovers a rock slab on which the footprints of a Pennsylvania dinosaur are well preserved. This means that there was a time in Pennsylvania history when dinosaur existed in this area. Here fossil is a fragment of rock on which the footprints of dinosaur is present.

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Air always moves from pressure to pressure
Darina [25.2K]

Answer:

C

Explanation:

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5 0
3 years ago
The photo shows a cross between a plant with white flowers and a plant with red flowers. The offspring is a plant with flowers t
Elena-2011 [213]

Answer:

The correct answer is - A. codominance.

Explanation:

Codominance is an inheritance pattern that develops if there are two alleles of a particular gene in an organism and both are expressed together. It is not common as normally dominant allele masks the effect of recessive allele but here both traits occur.

Codominance is different from incomplete dominance as incomplete dominance expresses the dominant allele more than the recessive allele and expresses a mix of both.

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3 years ago
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Marat540 [252]

<span>Food chains and webs not only describe the order in which organisms are eaten, but they also describe the animals that are all related. To exist with one another, organisms belonging to a same species either compete for the resources or divide it amongst themselves, where animals and plants of the same species co-exist and creates a beauty with nature.</span>

8 0
4 years ago
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Katen [24]
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Some legumes have a symbiotic relationship with bacteria that live in their root system. These bacteria are called Rhizobia and have the ability of nitrogen-fixation. 

3 0
3 years ago
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4 0
4 years ago
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