Suggest two features of humans -other than wrist circumference- that are affected by both genes and environment
Answers
Explanation:
Differences in anthropometry and body composition in populates arising from ecological habitat has been documented in several studies. The study attempted to evaluate the differences between the anthropometric and body composition parameters in young women of Kaduna and Rivers State, Nigeria. The study involved young women, without physical deformities within the age range of 18–30 years (mean age 22.10 ± 2.62 and 22.55 ± 3.78 for Kaduna and Rivers women respectively) that are indigenes of Kaduna and Rivers State. The study was based on a cross-sectional sampling of 788 tertiary institution students (401women from Rivers State females and 387 Kaduna females). The following anthropometric variables were measured: weight to the nearest 0.1 kg and height to the nearest 0.5 cm using a stadiometer, limb circumferences, and body circumferences using a nonstretchable tape. Body composition parameters were measured using bioimpedance analyzer. Data obtained showed that limb circumferences of Kaduna women are signifi cantly higher than Rivers women (P < 0.000 for arm circumference, P < 0.01 for calf circumference, and P < 0.000 for forearm circumference) except for the thigh circumference. However, weight, height, iliac and tricep skinfold of women from Rivers State was signifi cantly higher than Kaduna women (P < 0.01, P < 0.01, P < 0.05, and P < 0.05). Muscle mass, percentage body fat, basal metabolic rate, and metabolic age of Rivers women were signifi cantly higher than that of their Kaduna counterparts at a signifi cant level of P < 0.001, P < 0.05, P < 0.01, and P < 0.01, respectively. Rivers state women presented higher anthropometric variables and body composition parameters, but a lower limb circumference than their counterparts from Kaduna State. The difference in body composition could be tied to genetics and physiological variation that exists between individuals of a different population.
Keywords: Anthropometry, body composition, Nigeria, women
Introduction
Explanation:
Considering the answers;
A. small body
B. Drop in body temperature
C. Long, narrow beak
D. Brightly colored feathers
The answer would be C. long, narrow beak
The characteristics that is most likely a trait that developed in response to available food source is long, narrow beak.
These are examples of acquired traits, acquired traits are characteristic or traits that produces a phenotype that is a result of an environment influence. They are not coded for in the DNA of an individual and thus cannot be passed down to offspring during reproduction.