Permanent teeth eruption in children generally starts at the

age of

a. 6 months

b. 6 years

c. 2 years

. 12 years

What might happen if you completely removed a predator from an ecosystem? Explain in three sentences.

Euglena are protists that move by means of flagella, and they contain chloroplasts and an eye spot or light receptor. They are capable of ingesting food by phagocytosis. Being simple organisms, they can reproduce asexually.

Name three natural sources of calcium carbonate?

Farmer Brown can harvest 2 1/3 acres of corn in 1 day. how many days will it take hime to harvest 10 1/2 acres of corn?

Which statements describe the inheritance of traits? Check all that apply. A: All traits are inherited. B:Only some traits are inherited. C:Offspring inherit one allele for a gene from each parent.

What does the word prudent mean? A. slow B. easy C. wise D. kind

Briefly describe the steps of protein synthesis

Which tissue contains a calcified ground substance and is specialized for structural support? a. muscle tissue b. dense regular connective tissue c. areolar connective tissue d. bone connective tissue

This question refers to the same populations of mosquito fish as the previous question. Based on the evidence given in your textbook, can you state that the mosquitofish have speciated into different species, or not?

What is happening when cells start to swell up with water?