Practice Biology EOC

Front

The four butterflies in the illustration represent the offspring in the F₁ generation. Which statement is best supported by the phenotypes of these offspring?

Back

The F₁ generation is the result of a dihybrid cross.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

The initial steps in gene expression are modeled. Double-stranded DNA first unwinds into two strands. Which process and product are represented in the diagrams?

Back

Process: transcription; product: mRNA

Tags

NGSS.HS-LS1-1

Front

Name the process in the picture: transcription, mitosis, translation, replication

Back

replication

Front

Name M.

Back

Calvin cycle

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

Front

Name B.

Back

nitrogen base

Tags

NGSS.HS-LS1-1

Front

The diagram represents one way an enzyme can be inhibited. Which statement explains the effect of an inhibitor on an enzyme?

Back

A substrate will be unable to attach to the enzyme.

Front

An environmental change that removed which of these organisms from the Alaskan ecosystem would cause the most instability? Options: Auklets, Foxes, Salmon, Zooplankton.

Back

Zooplankton

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

NGSS.HS-LS2-6

NGSS.HS-LS4-5

Front

An analysis of DNA and RNA sequences can be used to classify organisms. A dendrogram, such as the one shown, is based on molecular data. It can be used to represent evolutionary relationships within a group of organisms that are hypothesized to have descended from a common ancestor. Which statement is best supported by the information in this dendrogram? Options: Lesser pandas are more genetically similar to giant pandas than they are to raccoons. Brown bears are more genetically similar to giant pandas than they are to sun bears. Lesser pandas are more genetically similar to raccoons than they are to giant pandas. The bear species are all more genetically similar to dogs than they are to giant pandas.

Back

Lesser pandas are more genetically similar to raccoons than they are to giant pandas.

Tags

NGSS.MS-LS4-2

Front

Role of the cell membrane in egg model of human red blood cells when placed in different solutions.

Back

The cell membrane allows water to enter and leave the cell.

Tags

NGSS.MS-LS1-2

Front

What is this an example of? Options: vestigial structures, embryology, homologous structures, fossil record

Back

homologous structures