Which statement best. describes the fossil record?it is a complete record
it is an incomplete record
most fossils are older than 5. billion years
all fossils are younger than 600 years

Answer:

this is bases

Explanation:

because, acids chemical reaction , there is no 2 written when writing an acids chemical reaction

Answer;

Three ways that scientist can use to avoid bias are;

- Sampling method

- Using blind study

- Repetition

Explanation;

Sampling method involves the studying of a small quantity of a particular aspect in order to form an opinion about the whole population. To avoid bias its important to obtain samples that are appropriate and that would cover the entire participants studied.

-Repetition involves repeating a particular experiment several times in order to ensure that one gets the same results that is ensure accuracy of the results.

-Blind study involves an experiment in which the control and the variable groups are conceal from the participants until after the end of the experiment. It is an important factor to avoid bias in scientific research.

Final answer:

Scientists can minimize bias in scientific investigations through randomization, blind studies, and double-blind studies.

Explanation:

There are three ways that scientists can minimize bias in scientific investigations:

1. Randomization: Scientists can assign participants or samples randomly to different groups or conditions to ensure that each group is similar and reduce bias.
2. Blind studies: Scientists can conduct blind studies where participants or researchers are unaware of the group assignments or the purpose of the study to prevent biased behavior or expectations.
3. Double-blind studies: Scientists can also conduct double-blind studies where both the participants and the researchers are unaware of the group assignments to further avoid bias.

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secondary succession occurs in area where there is already soil, but the plants and animal life there has been wiped out.

Answer:

A. Secondary

Explanation:

The description the question gives is where there is soil, but all plants and animals lives have been cut out. This fits the secondary succession.

Primary succession is immediately wrong because it is when the environment is lacking soil, which is not what the question is asking. And since Primary is incorrect, this also means D. All of these is incorrect as well. Annual already has plant life

A group of species that have a similar characteristic is called a family. Therefore, the correct statement is option C.

What is biological classification?

Biological classification is the science of organizing living organisms on their evolutionary relationships. Taxonomy allows scientists to provide a systematic way of naming and classifying organisms. Within each kingdom, organisms are classified into specific categories. The basic unit of classification is the species, which involves a group of organisms that have a ability to produce a viable offspring.

Above the species level, organisms are grouped into genus, families, orders, classes, phyla, and kingdoms. These taxonomic ranks are arranged in a hierarchical manner. For example, a family encompasses several genera, and a genus encompasses several species.

Families are groups of similar genera. It typically includes several genera of closely related species. A family is a taxonomic rank that comes above the genus and below the order, therefore, it constitutes several genus with closely related species.

Therefore, family is a group of species that have a similar characteristics.

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