BIOLOGY HIGH SCHOOL

A database is an efficient way to share information because it

Answers

Answer 1
Answer:

Can be searched quicky for the most relevant observations.
Answer 2
Answer:

Answer: Can be searched quickly for the most relevant observations.

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Courtney is making regular observations of the growth rate of kudzu vines on a ditch in her neighborhood. She isolated and tagged five tendrils of the vine, and takes weekly cumulative measurements for a year. A portion of her results are shown below. What issue with her data does Courtney need to resolve? Tendril #


Week 1 Week 3 Week 6


1 1.2 cm 5.9 in 1.2 ft


2 2.0 cm 4.8 in 0.98 ft


3 0.8 cm 3.2 in 0.55 ft


4 0.2 cm 1.6 in 0.35 ft


5 1.5 cm 4.3 in 1.01 ft


A) Inconsistent units of measure

B) Insufficient amount of data

C) Duration of the study

D) Number of samples

Answers

Answer: A. Inconsistent units of measure

Explanation:

When taking data such as measurements, it is very important that the results are reported in the same unit of measure. Failure to do so will eventually affect your analysed result.

Answer:

A) Inconsistent units of measure

Explanation:

Since Courtney measured the same variable in all the tagged tendrils, the unit of measurement is supposed to be the same. Before any further processing or analysis of the data, she will need to use the appropriate conversion factors to convert all the variates to the same unit.

The research lasted for a whole year and data were collected weekly, the issue of insufficient data or duration of study does not arise in this case. Also since, the size of study population was not indicated, it will be be difficult to point out the sample size as an issue.

The correct option is A.

Osmosis is the diffusion of small molecules. -------------------------------------------------------------------------------- True False

Answers

The answer to your question is false cause…Diffusion and osmosis are related concepts, which involve movement of materials from areas of high concentration to areas of low concentration. Diffusion involves movement of any chemical from one place to another; osmosis refers to movement of water across a membrane. Only water can undergo osmosis.

2. Explain how you determined the genotype of Maria and Juanita, even though you did not test their DNA

Answers

The answer is a pedigree chart.


Pedigree charts are used to explain the occurrence of particular genes from one generation to the next. It gives enough information about family disease history. They are used in families to find out the probability of inheriting some disease. So, if Maria and Juanita are cousins and the genotypes of other members of their family are known, the pedigree chart could predict their genotypes. Still, it is not as precisely as DNA test.

What characteristic do all algae share?

Answers

They are autotrophs.
they are autotrophs because they make their own food like protists do via photosynthesis.(Was this helpful?)

Which statement describes the relationship between chromosomes, genes, and alleles? A. Alleles transfer genes to the appropriate location within a chromosome. B. Alleles are sites on a chromosome that genes bind to. C. Chromosome's have mutated parts called genes. These mutations are caused by alleles. D. A chromosome's specific section is called a gene. Alleles are variations of a gene.

Answers

D is the best of the options given. Alleles are different versions of a gene. A given gene is localized (located) in a specific location on a chromosome. A chromosome consists of genes. There are many different versions of genes out there. (i.e. the gene for hair color could have an allele coding for black, blond, red, brown, etc. colored hair. That allele would be where you find the gene for hair color on the chromosome.) Hope this helps! :)

Which of the following is a nucleotide of DNA?a
ribose, phosphate, uracil
b
deoxyribose, phosphate, uracil
c
ribose, phosphate, thymine
d
deoxyribose, phosphate, cytosine

Answers

D.


Hope this helped. :)
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