Scientists use a process known as the scientific method to conduct their research. there are various versions of this process, but they all have similar basic steps as indicated in the flow chart below. torres-porras took all of the steps in the flow chart after he observed differences between red deer populations in fenced and unfenced estates. drag the description from the torres-porras experiment on to the position it represents in the scientific method.

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates