What vascular plant tissue is made of dead cells

Term for distinguishing characteristics that are inherited

A disease called phenylketonuria causes mental problems, reduces skin pigmentation, and also affects the coloration of urine. What kind of effect is exhibited by the gene responsible for this disease?

Once isolated, the identical population of shrimp began to evolve differently from one another. What factors may have caused these separated groups to physically change from their original parent species?

Compare dominant and and recessive traits

Search around your house. Name two examples of objects that show mechanical energy.

Which of the following are found in plant cells but not animal cells? plastids ribosomes chloroplasts vacuoles

Which characteristic of the male reproductive system is not variable among animal species that reproduce sexually?

Why the children in a family may have different genotype and phenotype than predicted by the punnet squre

What is meant by the term "chemically gated sodium channel"? Group of answer choices A membrane channel that opens when some chemical binds to it, allowing sodium to cross the cell membrane A membrane channel that opens when sodium binds to it,

Scientists now know how much carbon dioxide was present in the atmosphere as far back as 800,000 years ago. How did they obtain this data?