According to piaget, at what age will most children enter the concrete operations stage of cognitive development?

a. between the ages of 4 and 6

b. usually by age 2

c. by age 12

d. by age 7

My best friend's hedgehog started to lick mine then started to bite her, we aren't quite sure what it means?

Jellyfish, corals, and hydras are examples of which of the following? sponges phylogeny tentacles cnidarians

Use Analogies Supposesome codons mapped two different amino acids? What would the effect be on your translation coded messages? What would the effect be on the production of proteins?

Charged ions are traveling through a cell membrane with the concentration gradient. This is an example of

Explain how the use of oil as an energy source can potentially affect aquatic viability.

Where is fresh water found? Select three options, rivers oceans ice sheets water vapor coastal wetlands

A mineral that breaks along one or more straight lines exhibits which property ФωФ

Which of the following is a biotic factor? a. Parasites b. Sun c. Soil d. Temperature

When nucleotide sequence of the cell's DNA becomes altered it causes what

Factors that can alter the level of expression of a gene include Check All That Apply an increase in l temperature. an increase in salinity. exposure to UV radiation. presence of particular energy substrate.