What is a hard black rock with small crystals

A scientist shines ultraviolet light on a colony of blue colored bacteria. She then places colonies of the bacteria in separate Petri dishes.

What gene or chromosome is affected by huntington's disease?

The observable traits of an organism (such as hair color or height) is referred to as the: Group of answer choices Phenotype Alleles Genotype Chromosomes

Some substances, such as mercury, tend to be found in increasing concentrations as one moves up the food chain. What is the term for this? Bioaccumulation Biomagnification Biotic-accumulation Biotic-magnification

James is homozygous dominant for curly hair (cc), and his wife is heterozygous (cc). what is the probability that their first child will also be homozygous dominant for curly hair? a. 25% b. 75% c. 50% d. 0%

What is a population?

In what way is cytokinesis in plant cells similar to binary fission in a bacterium? All of these choices are correct. A microtubule-like structure constricts the plasma membrane between the two nuclei to separate the daughter cells.

Which statement describes the ability of the cell membrane to allow various substances to move through it? a) The cell membrane is selectively permeable. b) The cell membrane id composed of lipids and phosphates.

What are the potential consequences if a person has their gallbladder removed?

What must change in the ecosystem for tree to appear