Biology, 25.11.2020 17:50, ashiteru123

Use the evidence of these ammonite index fossils, what can we say about these two geologic layers?

They were laid down around the same time

Sandstone is older than the shale

Shale is older than the sandstone

Since they are from different locations, unless we can radiometric Lee date them, we cannot distinguish anything between the two

Use the evidence of these ammonite index fossils, what can we say about these two

geologic layers

Answers: 3

Show answers

Other questions on the subject: Biology

Biology, 21.06.2019 17:30, elizm0427

In order to clone adult animals, scientists typically begin with a(n)

Answers: 1

continue

Biology, 21.06.2019 20:00, Mathmatician22

Two male mice, which we will call male a and male b, are both phenotypically normal. male a was from a litter that contained half phenotypically normal mice and half dwarf mice. the mother of male a was known to be homozygous for the normal igf2 allele. male b was from a litter of eight mice that were all phenotypically normal. the parents of male b were a phenotypically normal male and a dwarf female. male a and male b were put into a cage with two female mice that we will call female a and female b. female a is a dwarf and female b is phenotypically normal. the parents of these two females were unknown, although it was known that they were from the same litter. the mice were allowed to mate with each other, and the following data were obtained: female a gave birth to three dwarf babies and four normal babies. female b gave birth to four normal babies and two dwarf babies. which male(s)mated with female a and female b? male a with both females male a with female b, and male b with female a male a with female a, and male b with female b could not be determined male b with both females

Answers: 3

continue

Biology, 22.06.2019 02:00, naimareiad

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Answers: 3

continue

Biology, 22.06.2019 12:00, KaiKai11

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Answers: 2

continue

Do you know the correct answer?

Use the evidence of these ammonite index fossils, what can we say about these two geologic layers?<...