Many scientists say that there is a good reason for gaps in the fossil record. Can you explain why some extinct animals and plants were never fossilized?

Answers

Answer 1

Answer:

Answer:

For an organism to become a fossil, it must not decompose or be eaten. This can happen if the organism either lives within or is moved to a place where it can be buried and kept from decaying. When an organism is buried quickly, there is less decay and the better the chance for it to be preserved.

Explanation:

I copied and pasted from https://www.americangeosciences.org/education/k5geosource/activities/investigations/fossils/how-fossils-form ,it might help for your work.

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The discovery, characterization, and the application of the CRISPR/CAS system has revolutionized the study of genetics and genetic engineering. Please select all correct answers regarding its mechanism of action and application. Multiple correct answers are possible, and partial credit will be given.A. CRISPR sequences in bacteria resemble those from bacteriophage and plamid DNA. B. For reverse genetics studies, CRISPR/CAS can be used to replace wildtype alleles with mutant alleles which can knockout the function of the target genes. C. CRISPR is a DNA sequence in the bacterial chromosome. D. The guide RNA directs CAS to specific DNA sequences. E. The CRISPR/CAS system was discovered in bacteria, and its natural function is the equivalent of an immune system in bacteria for "remembering" viral infections and for attacking viral DNA in future infections.
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1) For each of the genotypes below determine what the phenotype would be. Bobtails in cats are recessive. Normal tails are dominant.
TT _____________ Tt _________ tt _____________

Answers

TT is Normal tail

Tt is Normal tail

tt is Bobtail

Those are the phenotypes.

consider a molecule of the polymer, polyethylene, and a protein molecule as if they were strings of beads. How would the string representing polyethylene differ from that representing a protein

Answers

Answer:

When a macromolecule contains repeated similar sub units of a particular molecule:such a repeated units are called polymers.

Therefore, polyethylene is a micromolecule of repeated subunits called ethylene formed during polymerization..Therefore, the small units joined together to form polyethylene are ethylene.These are alkene hydrocarbons,which are similar in structure with the carbon atoms linked by double bonds.When the Pi bonds of the double bonds breaks. hydrogen atoms forms free covalents bonds in all these sub units.

However, polypeptides is made of of 20 different amino acids, connected by peptides, disulfide and other bonds.Therefore the protein molecules will be different from the polyethylene and polymers. This is because each of the 20 amino acids has different R-groups, and It is this R-groups that determine the functional characteristics displayed by each amino acid sub- units.Therefore, the characteristics of a protein molecule will be determine by the type of Amino acids it contains.

Thus the beads of polyethylene will be the same, but different in proteins

Explanation:

What is the average temperature in Iceland?

Answers

The southerly lowlands of the island average around 0 °C (32 °F) in winter, while the Highlands of Iceland tend to average around −10 °C (14 °F). The lowest temperatures in the northern part of the island range from around −25 to −30 °C (−13 to −22 °F). The lowest temperature on record is −39.7 °C (−39.5 °F).

The southerly lowlands of the island average around 0 °C (32 °F)

Mutations that are
passed to offspring must occur

Answers

Answer:

Germ cell DNA

Explanation:

mutations that are present in other body cells do not get passed onto offspring. if the mutations are present in a germ cell it does get passed onto offspring

The process of converting nitrogen gas to nitrate ions that
plants can absorb is

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The process of converting nitrogen gas to nitrate ions that plants can absorb is
Nitrogen fixation

Friction is aforce that acts

Answers

Is force friction is force that acts

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The Carbo Foods company produced 2000 cupcakes in its first day of operation. We would like to know the average amount of sugar in these cupcakes. Scientists randomly select 50 of the company’s cupcakes produced on that first day. The scientists find that the 50 cupcakes have an average of 30 grams of sugar each. • a) What is the population of interest in this experiment? • b) What is the population size, N ? • c) What is the sample in this experiment? • d) What is the sample size, n ? • e) Describe the sample results. • f) Based on the sample results, what might we infer about the population?

Strepsirhines have a special lower incisor called a Group of answer choices tooth comb. diastema. two-ridge tooth. bilophodont.

Explain the relationship among homeostasis, defective mitochondria, and the symptoms caused by LHON.

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