Regents Review 1

There are over 2000 kinds of edible insects in the world, and they are becoming an increasingly popular source of protein. One cup of cricket flour contains over 28 grams of protein. The building blocks of the protein in cricket flour are

• amino acids

• water

• simple sugars

• carbohydrates

Which list contains only abiotic conditions that might be found in a pond ecosystem?

• temperature of the water, green plant populations, dissolved minerals in the water

• temperature of the water, dissolved oxygen in the water, dissolved minerals in the water

• bacteria, dissolved minerals in the water, temperature of the water

• dissolved oxygen in the water, fi sh populations, insect populations

Protein synthesis is accomplished primarily by the interaction of which two cell structures?

• vacuoles and mitochondria

• ribosomes and vacuoles

• nuclei and ribosomes

• nuclei and mitochondria

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

Identical twins were separated at birth and raised by two different families. Years later, one twin was a physically fit member of the cross-country team, and the other twin was overweight with slightly higher-than-normal blood pressure. The differences in these twins could be explained by the fact that

• the genes in the two individuals are completely different

• in twins, each individual inherits genes from only one parent

• the DNA bases in twins combine differently

• the environment can influence the expression of genes

Tags

NGSS.MS-LS1-5

The diagram best represents...

• the recycling of energy in a forest community

• ecological succession after climatic changes

• competition for limited resources in a population

• The flow of materials in a forest community

Tags

NGSS.MS-LS2-3

Traits are passed from parents to offspring. These traits are determined by

• chromosomes, located on genes, found in the nucleus

• genes, located on chromosomes, found in the nucleus

• chromosomes, located on genes, found in the ribosomes

• genes, located on chromosomes, found in the ribosomes

Tags

NGSS.MS-LS3-2

In which cell structure is energy extracted from nutrients?

• chloroplast

• ribosome

• mitochondrion

• vacuole

The diagram below represents a food web in a pond ecosystem. Two carnivores in the food web are

• bass and small invertebrates

• small invertebrates and crabs

• water plants and clams

• crabs and crayfish

Dodder plants consist of tangled masses of yellow, leafl ess vines and contain few chloroplasts. The vines twist around and grow into the stems of other plants and absorb water and nutrients from them. Which statement best describes this relationship?

• Dodder plants are parasitic, relying on host organisms for resources.

• Dodder plants are decomposers, returning organic material back to the environment.

• Dodder plants are producers, while the other plants that they attach to are consumers.

• Dodder plants are consumers, transferring energy to other plants in the ecosystem.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Two kittens in a litter are genetically different from each other and from their parents. These genetic differences are most directly due to

• sexual reproduction

• asexual reproduction

• cloning

• evoltuion

Tags

NGSS.MS-LS3-2