A lack of Vitamin D is said to be detrimental to the maintenance of bone density. If a scientist wanted to determine whether this view was supported by scientific evidence,
which of the following would be the best method of doing so?
(a) carry out a survey of people with normal bone density to find out whether they
take Vitamin D tablets or not
(b) compare the bone density of two groups of people with low bone density after
providing only one of the groups with Vitamin D
(c) compare the incidence of people with low bone density in two different populations
(d) carry out an experiment in which a group of people with normal bone density are
exposed to very little sunlight to prevent the production of Vitamin D

Answers

Answer 1

Answer: i would do B because then you can compare people who do take Vitamin D to people who don't and then you can see who has better bones and the effects.

Answer 2

Answer: D is also a good option because when their little production of vitamin D we can easily determine what is the effect of this experiment to the bone density...

Related Questions

What does the combined genetic information of all members of a particular population form?
What is the role of natural selection in evolution?
Which stage of the listening process might include an alert posture, appropriate facial expressions, and direct eye contact?selectingrespondingunderstandingrememberingevaluating?
During what phase of meiosis is the DNA replicated?
What waves are part of the electromagnetic spectrum

_____ are masses of cells full of pores.

Answers

The correct answer is Porifera; specifically sponges. Sponge, from the phylum of Porifera, are masses of cells full of pores. Sponges are multicellular organism that had their bodies full of pores and channels that allows the water to circulate throughout.

I will give out 90 points. Please answer!!DNA Polymerase is used to (select all that apply) the answer is not just “synthesize the daughter strand)
-“read” the template strand
-synthesize the daughter strand
-unzip the template strand
-cut the template strand
-cut the daughter strand

IS THE ANSWER 2-5 and not 1??

Answers

The answer is number 4 hope this helps

Final answer:

DNA Polymerase 'reads' the template strand and synthesizes the daughter strand during DNA replication. It does not unzip or cut the template or daughter strands.

Explanation:

DNA Polymerase has specific functions during DNA replication, a process that occurs prior to cell division. Out of the given options, DNA Polymerase is responsible for two actions:

"Read" the template strand: DNA Polymerase 'reads' the DNA sequence in the 3'-to-5' direction and synthesizes the new DNA strand in the 5'-to-3' direction.
Synthesize the daughter strand: DNA Polymerase helps in the synthesis of the new DNA strand (known as the daughter strand) by adding nucleotides to the 3' end of the growing DNA chain.

However, DNA Polymerase does not 'unzip' the template strand, this is the job of another enzyme called DNA helicase. Likewise, DNA Polymerase does not cut the template or the daughter strand. Thus, answers 3, 4, and 5 are incorrect.

Learn more about DNA Polymerase here:

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A fisheries management official recommends that long line fishing in a certain area be prohibited during the spring and summer season of the year. What is the most likely reason for this?Prevent the catching of sea birds during their nesting and breeding season.
Enable the fishing fleet to catch younger fish.
Maximize fishing profits during peak tourist season.
Avoid fishing competition with foreign fishing fleets.

Answers

The correct answer for this question would be the first option. The reason that is most likely why fisheries management official recommends that long line fishing in a certain area be prohibited during the spring and summer season of the year is to prevent the catching of sea birds during their nesting and breeding season. Hope this answer helps.

Answer:

Prevent the catching of sea birds during their nesting and breeding season.

Explanation:

Which sequence represents a cross section of the bilayer

Answers

hydrophillic head, hydrophobic tail, hydrophobic tail, hydrophillic head

Answer:

The correct order would be a hydrophilic head, hydrophobic tail, hydrophobic tail, and hydrophilic head.

The plasma membrane is a lipid bilayer, that is, a layer formed of two layers of phospholipids.

A phospholipid is made up of two parts; hydrophilic polar heads and hydrophobic lipid tail.

The two layers are arranged in such a way that the hydrophilic parts are present outwards and the hydrophobic tails are sandwiched between the polar heads of two layers.

Thus, the order would be a hydrophilic head, hydrophobic tail, hydrophobic tail, and hydrophilic head.

The table above summarizes traits for two parents and their child The patterns evident in this data demonstrate that A genetic information is passed from neither mothers nor fathers to offspring B. genetic information is passed only from mothers to offspring C. genetic information is passed only from fathers to offspring D. genetic information is passed from both parents to offspring