Why does the nucleus have a positive charge?

On a laboratory exam, a student is asked to determine if the cells under a microscope are plant cells or animal cells. What might the student look for when making the observation

Situations in which one allele for a gene is not completely dominant over another allele for that gene are called ...

What term can can be used to describe evolution by natural selection

Consider the two types of sudoriferous glands. Then click and drag each label into the appropriate category to determine whether it applies to apocrine glands, merocrine (eccrine) glands, or both.

Drug addiction occurs when an individual will lie about taking a drug. a drug no longer causes a person to get high, but they take it again. physical and/or psychological dependence develops.

What is directly responsible for an acquired trait

Which statement best describes a physical change? Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.

What are catalysts that speed up reactions in living things called? A. Biocatalysts B. Enzymes C. Cellular facilitators D. Polymers

Offspring that are genetically unique are the result of mitotic reproduction. vegetative reproduction. asexual reproduction. sexual reproduction.

Are dinosaurs bones biotic or abiotic