Biology, 29.06.2019 20:30 James300102
The diagram below shows the layers in a rock having a brachiopod: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has two identical organisms marked as, brachiopod, in the key and one shaded circle, the middle layer has a two squares, the top layer has one star shape. in the key the shaded circle is marked as x, the square is marked as y and the star is marked as z which statement about the rock fossils is true? organism x existed for a short period of time. organism y became extinct before organism x. organism x and organism y existed at the same time. organism z became extinct much before organism x.
Answers: 1
Biology, 22.06.2019 01:20
Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen
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Biology, 22.06.2019 04:00
The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.
Answers: 1
Biology, 22.06.2019 04:00
Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them
Answers: 1
The diagram below shows the layers in a rock having a brachiopod: a rock column labeled rock is sho...
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