Asked by Anonymous

1. A trilobite is considered an index fossil because this organism existed during a limited period in Earth's history. That means that any fossil located in a layer of rock beneath a layer containing trilobite fossils is ____________ than a trilobite.

2. According to this diagram, monotremes, marsupials, and placentals have the same _________ known as therapsid.

For this one, there is a cladogram with the therapsid at the bottom and the monotremes and marsupials on the top.

Is 1. "older" and 2. "ancestor"?
Answered by bobpursley
the first is correct. On the second, I have no idea what the diagram is, however, I suspect your "ancestor" is correct.
Answered by Anonymous
This is the diagram:

connexus. com/content/media/917517-482013-73416-PM-569566141.jpg
Answered by Billabong
Anonymous if ur from connexus ur breaking the honor code
Answered by bri
Don't break the honor code but i can help explain a little try looking up to see if the fossils under the trilobite is older than you will know
Answered by M&M
hey guys I go to connexus so plz don't break our honor code we try to be a professional school.
Answered by Natica
yes don't break the honor code but YES the answers are correct
Answered by sup
we don't care!!!!!!!
Answered by Kingo
Like we give a damn about the honor code :/ If you're not helping then get out of this website.
Answered by ^^^^^
wow..... extremely rude. they are trying to keep you out of trouble. just sayin. @Kingo
Answered by Private name so connexus dont bust my ass
ythanks guys for caring but its not needed we got his love ypu all
Answered by Sese
Bro! I go to connexus as well but calm down! just give her the answers and go on. You are correct 1 is older and 2 is ancestor.
Answered by grop
i rather npt break this
Answered by Anonymous
Btw what grade level is this because I'm in 7th grade and I'm also in connections academy but I've been told that some of the stuff I'm doing is not 7th grade work, that includes the natural selection and adaptation unit test
Answered by patty
The answer is older! A trilobite is an index fossil because it was the organism only existed during a limited time in Earth's history so if you find a fossil located in a layer of rock beneath a layer containing trilobite, it's older and can be used to help calculate the times other organisms were around.
Answered by TBH
NO one at all if you are on this site on the first place cares about some stupid honour code soooo shut uuuppp about it
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