Which type of molecules does the body use to build and repair muscle tissue?

nucleic acids

carbohydrates

lipids

proteins

Some organelles found in modern eukaryotic cells may be the result of a symbiotic relationship between ancient prokaryotes. Which organelles may have once been prokaryotes? a. mitochondria and endoplasmic reticulum c. mitochondria and ribosomes b.

What has very thin walls to allow the nutrients and gasses to be exchanged between the blood and cells?

Which biomedical has been most impacted by logging? A. tundra B. grassland C. Tigar D. temperature rain forest

A nonspecific response of the body to any demand put upon it that can be both physical and mental is called

Which of the following diseases is caused by an abnormal chromosome inherited before birth? A. sickle cell anemia B. diabetes C. Huntington's disease D. Turner syndrome

Each of two parents has the genotype red divided by brown , which consists of the pair of alleles that determine hair color , and each parent contributes one of those alleles to a child.

A woman has been trying to conceive for several years, unsuccessfully. at a fertility clinic, they discover that she has blocked fallopian tubes.

A cell that begins meiosis with 46 chromosomes produces daughter cells with

Which kingdom (s) include organisms that are autotrophic or heterotrophic?

In what types of living things must groups of cells work together?