Biology, 08.04.2020 00:51 onlymyworld27

"An organism that is closely related to the group you’re interested in, but not a part of it. A way to establish a basis of comparison for an trait analysis." This is a definition of: a. An ancestor b. A marker c. An outgroup d. A stem group

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Answer from: rheamskeorsey33

c. An outgroup

Explanation:

An outgroup is a group organisms that is not part of the group (ingroup) where evolutionary relationship is determined or investigated, but is closely related to the ingroup.

Th outgroup is used to compare the ingroup and gives room to root the phylogenetic tree. It is used as a reference group to determine the evolutionary relationships of an ingroup.

When determining an outgroup it is necessary to understand the evolution of traits in the phylogenetic tree. The outgroup must not be part of the ingroup, but must be closely related enough to the ingroup to enable for comparisons.

For example Angiosperms can be an ingroup, while gymnosperm an outgroup.

Answer from: daniellekennedy05

The correct answer is c. An outgroup

Explanation:

An outgroup is that taxon or group used in the analysis that is not included in the study group. It is used for comparative purposes. Usually several outgroup are used in the cladistic analysis that consists of the discovery and selection of characters and taxa, the encoding of characters, and determination of cladograms that best explain the distribution of characters over taxa.

Answer from: Quest

slitherio is the original. its the best friend of all middle schoolers. the man you can count any time you have some free time. slitherio is the guy you hang with while you're in the computer lab suppose to be doing "research or whatever". slitherio isn't just a game but a friend.

wormaxio is just a fake trying to squeeze its way into the friend group. trying to pretend its cool and your best pal but how long has it really been there for you, really. it only wants you as friend to boost its social status. wormaxio is just annoying fake pleb. no offense

you and have a wonderful day

Answer from: Quest

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life. if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.

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