Biology Year Review

What is natural selection?

• When an animal has the desire to change this leads to actual change

• Environmental factors change, nature "selects" traits to be passed on

• Not using body parts would cause it to decrease in size or disappear

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Where does photosynthesis take place?

• Lysosomes

• Chloroplast

• Cytoplasm

Tags

NGSS.HS-LS1-5

What does the term "fitness" mean in biology?

• By how many offspring they have

• The size of their muscles

• How long an animal survives

Tags

NGSS.HS-LS4-3

NGSS.HS-LS4-4

Match the description to the scientist.

'A bunch of prehistoric penguins stopped using their wings to fly and the wings shrank from disuse. These penguins with shrunken wings passed their shrunken wings characteristic to their offspring.'

• Lamarck

• Darwin

Set of alleles; can be homozygous or heterozygous

• Genotype

• Phenotype

• Homozygous

• Heterozygous

Expressed trait/gene

• Genotype

• Phenotype

• Homozygous

• Heterozygous

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Overpowers recessive alleles and traits; will be expressed even if just one allele is present

• Genotype

• Phenotype

• Dominant

• Recessive

Which description best fits the karyotype in the image above?

• Monosomy X

• Trisomy X

• Monosomy 7

• Trisomy 7

The karyotype photo above is.....

• human, female

• human, male

• female but not human

• male but not human

Tags

NGSS.HS-LS3-1

An anticodon is a set of 3 nitrogen bases on a _________ strand.

• DNA

• mRNA

• tRNA