What is composed of several food chains in an ecosystem that intersect and depend on one another?

• niche

• feeding level

• energy pyramid

• food web

Tags

NGSS.MS-LS2-3

What is the ultimate source of energy in any food chain?

• the sun

• producers

• consumers

• decomposers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organisms can be found at the first, or lowest, trophic level?

• herbivores

• carnivores

• heterotrophs

• autotrophs

Tags

NGSS.MS-LS2-3

Which statement describes an autotroph?

• It is an organism that makes its own food.

• It is an organism that eats other organisms.

• It is an organism that eats decaying matter.

• None of the above.

Tags

NGSS.MS-LS2-3

Specific portions of DNA that determine hereditary characteristics

• Genotype

• Genes

• Phenotype

• Chromosomes

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures

• homologous structures

• adaptive radiation

• fossil

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

According to this image, which two domains of life are most related?

• Bacteria & Archaea

• Archaea & Eukarya

• Eukarya & Bacteria

Tags

NGSS.HS-LS4-1

When an offspring inherits two recessive alleles

• Heterozygous

• Homozygous

• Genotype

• Phenotype

Tags

NGSS.HS-LS3-1

What best describes the hind leg bones seen in the whale?

• The bones are analogous structures to the fins of living fish.

• The bones are vestigial structures that had a function in an ancestor.

• The bones are homologous structures to the wings of butterflies.

• The bones are fossil structures from an extinct ancestor.

Tags

NGSS.MS-LS4-2

Sickle cell anemia is a ​ ​ (a)   disease that affects the red ​ (b)   cells and is the result of two ​ (c)   genes. ​

• Genetic

• blood

• recessive

• cancerous

• shapeless

• dominant

Tags

NGSS.MS-LS3-1