The ratio of sexually active males to sexually receptive females is called
Select one:
a. The sex fitness ratio
b. Operational sex ratio
c. Optimal sex ratio
d. Fibonacci sex ratio
e. Effective sex ratio
Answer: b. Operational sex ratio
Explanation:
The sex fitness ratio: The gender fitness ratio in a
population.
Optimal sex ratio: The optimum sex ratio is typically 1:1 sex
ratio.
Effective sex ratio (ESR) is defined as the ratio of males to
females that atleast mate once.
operational sex ratio is the ratio of sexually active males to
sexually receptive females
The ratio of sexually active males to sexually receptive females is called Select one: a. The...
many choice question Which of the following are reasons why females are usually the choosy sex? The cost of sperm Operational sex ratio is female biased Females invest more in gametes than males The sex ratio differs Operational sex ratio is male biased The cost of eggs You may select zero, one, or many answers Submit response
Question 17 Complete Mark o.o0 out of 1.00 Sexually transmitted infections disproportionately affedct Select one: a. females and adults age 25 and older b. males and young people age 15 to 24. c. males and adults age 25 and older. d. females and young people age 15 to 24. . Your answer is incorrect 29
Question 17 Complete Mark o.o0 out of 1.00 Sexually transmitted infections disproportionately affedct Select one: a. females and adults age 25 and older b. males and young people age 15 to 24. c. males and adults age 25 and older. d. females and young people age 15 to 24. . Your answer is incorrect 29
In birds with a ZZ-ZW sex determination system, males are ZZ and females are ZW. Which is the heterogametic sex? Group of answer choices a Females b Neither males nor females c Both males and females d Males
A city contains 150,000 people (80,000 females and 70,000 males), and 1,500 people die per year (800 males and 700 females). There were 55 cases (40 males and 15 females) of lung cancer per year, of whom 40 died (30 males and 10 females). Compute: a. Crude mortality rate b. Sex-specific mortality rate c. Cause-specific mortality rate for lung cancer in each sex. d. Case fatality rate for lung cancer in each sex. e. PMR for lung cancer compared to...
In a ZZ-ZW sex determination system, males are ZZ and females are ZW. Which sex is going to be most affected by mutations on the Z chromosome? Group of answer choices a Males will be more affected b Females will be more affected c Additional information is needed to answer this question d Females and males will be equally affected
1. Dosage compensation often occurs in species whose males and females A) differ in their autosome numbers. B) differ in their sex chromosome numbers. C) have the same number of autosomes. D) have the same number of sex chromosomes. 2. Extranuclear inheritance involves the inheritance of genes that are found in _____ and _____. A) nucleus B) mitochondria C) chloroplasts D) endoplasmic reticulum E) ribosomes
Which hormone, found in both males and females, can cause a lack of interest in sex if the levels of this hormone fall too low? a. glucose b. leptin c. estrogen d. testosterone
S. During puberty, typically 9. Common beliefs about people of particular genders base and females will experience devel loping males will experienceermarche a. menarche; menarche b. spermarche; spermarche c. m d. spermarche; menarche on many people's similar gender schemas are called gender a. stereotypes. b. roles. e. identities. d. expressions. Marisol explains to her best friend that she is bisexual. Mariso 10. a. biological sex b. gender identity c. sexual orientation. d. sexual activity 11. According to rescarch, which of...
Most penguin species are not sexually dimorphic, which means they lack obvious outward body characteristics which indicate sex. Observation of behavior or a blood test can determine Penguin sex. A penguin researcher is interested in estimating the proportion of females in a large penguin population. She takes a random sample of n = 20 penguins and determines the sex of each one using a blood test. She finds 12 males and 8 females. Let π be the proportion of females...