All organisms are equally likely to form fossils. Explanation: Because only hard organisms have a highest chance to become fossils, like bones, teeth and shells. That’s why is false.
Which statement is true about fossils?
Answer: The correct answer would be D) The complexity of the organisms in fossil beds increases closer to the surface. For example, bones, exoskeleton, shells, et cetera.
Which statement about fossils can be used as evidence that evolution by natural selection has been in effect for millions of years?
Which statement about fossils could be used as evidence that evolution by natural selection has been in effect for millions of. years? Fossils found in higher layers of rock are older than those. found in lower layers.
When two species do not reproduce because of differences in mating rituals The situation is referred to as?
behavioral isolation. 16-3. When two species do not reproduce because of differences in mating rituals, the situation is referred to as. a. temporal isolation.
Do fossils have to be cut open?
Fossils have to be cut open to study the insides.
Modern tools like X-rays let scientists study inside fossils without damaging them.
How many kinds of fossils are there?
There are four main types of fossils, all formed in a different way, which are conducive to preserving different types of organisms. These are mold fossils, cast fossils, trace fossils and true form fossils.
Where are most fossils found?
Fossils are mostly found where sedimentary rocks of the right age – which for dinosaurs is the Mesozoic – are exposed. The best places are river valleys, cliffs and hillsides, and human-made exposures such as quarries and road cuttings.
In what era can you find the oldest fossil?
The oldest is the Paleozoic Era, which means “ancient life.” Fossils from the Paleozoic Era include animals and plants that are entirely extinct (e.g., trilobites) or are rare (e.g., brachiopods) in the modern world.
Why are homologous structures used as evidence for evolution?
Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species’ relatedness.
Which statement about fossils could be used as evidence that evolution?
This type of evolution is easily confirmed by the presence of fossils of the most diverse species of living beings in the world. This is because, as we know, fossils are records of species that do not currently exist, but existed millions of years ago and are similar to current species, being their ancestors.
Why can’t different species breed?
The biological species concept defines organisms as being, or not being, of the same species based on whether they can interbreed to make fertile offspring. … Broadly speaking, different species are unable to interbreed and produce healthy, fertile offspring due to barriers called mechanisms of reproductive isolation.
What is behavioral isolation example?
Behavioral isolation refers to the fact that many species perform different mating rituals. This is a common barrier between animals. For example, certain species of crickets will only mate with males that produce a particular mating song.
When two or more species reproduce at different times?
Temporal isolation happens when two or more species reproduce at different times.
What are the 7 types of fossils?
What are the Different Types of Fossils
- Body fossils – Soft parts. The first type, body fossils, are the fossilized remains of an animal or plant, like bones, shells, and leaves. …
- Molecular Fossils. …
- Trace Fossils. …
- Carbon Fossils. …
- Pseudofossils.
How do you tell if a rock is a fossil?
Mostly, however, heavy and lightly colored objects are rocks, like flint. Paleontologists also examine the surfaces of potential fossils. If they are smooth and do not have any real texture, they are probably rocks. Even if it is shaped like a bone, if it does not have the right texture then it is probably a rock.
Are fossils worth anything?
Fossils are purchased much as one would buy a sculpture or a painting, to decorate homes. … Unfortunately, while the value of a rare stamp is really only what someone is willing to pay for it, the rarest natural history objects, such as fossils, are also the ones with the greatest scientific value.