questions Flashcards
- The type of reproductive strategy with many offspring and no parental care is
A. r-selected reproduction
B. K-selected reproduction
C. Intermediate reproduction
D. Viviparous reproduction
a
- Young are developed in an egg containing yolk
A. Oviparous
B. Ovoviviparous
C. Viviparous
D. Both A and B
d
- _______ cells provide support for spermatogenisis.
sertoli
- The hormone ______________ stimulates mammary gland development.
prolactin
- The function of the prostate gland is to:
Supply fructose for energy, and secrete prostaglandins
Provides lubrication in the form of a mucous like substance
Secretes an alkaline fluid that neutralizes the acidic environment and provides clotting enzymes
Secretes an acidic fluid that provides fructose as an energy source
C
- What describes an oviparous organism:
The laying of eggs where the young then grow, develop, and hatch
Eggs originate inside the parent where a yolk is present, but no parental nourishment takes place. Eggs can be expelled later, or eggs can hatch prior to expulsion
Offspring develops within the parent’s body, and uses maternal blood to exchange nutrients
Eggs are fertilized and then develop a placenta for growth and development, prior to egg expulsion from the parent
A
- Suckling of the mammary glands triggers milk ejection, which stimulates one of two hormones to be secreted: _______
oxytocin
- Males still require estrogen to be produced, as estrogen has two benefits (list 1): ______ _____
sperm production
- What are the advantages of mammary gland feeding?
nutrients, immuno protective cells, inhibiting pregnancy hormones,
stages of labor
cervical dilation
delivery
placenta delivery
uterine involution
- Which placental hormone stimulates the growth of myometrium and helps prepare the mammary gland for lactation?
A. estrogen
B. chorionic gonadotropin
C. progesterone
D. chorionic somatomammotropin
A
- Which of the following is NOT and effect of estrogen?
A. egg maturation and release
B. maturation of ovarian follicles
C. thins cervical mucus
D. inhibits uterine contractions during gestation
E. promotes fat deposition and feminine body configuration
D
- Which of the following is not a type of reproduction in animals?
A. Budding
B. Parthenogenesis
C. Cloning in eukaryotes
D. Sexual reproduction
c
- Which hormone is secreted by Leydig cells in the testes?
A. Estrogen
B. Testosterone
C. Progesterone
D. Luteinizing hormone
b
In males, __________ cells provide support for spermatogenesis within the seminiferous tubules
Sertoli
- Describe the difference between r-selected and K-selected reproductive strategies.
R: little parental care
k: fewer offspring with significant care
- Which of the following is a basic process that takes place in the renal tubules?
Filtration
Secretion
Reabsorption
Osmoconcentration
All of the above
e
- In fish urinary systems _____ is maintained as major osmolytes.
Urea
Ammonia
Uric Acid
Trimethylamine Oxide
Both A and D
e
- In the avian urinary system, excess salt is secreted from the _____.
Rectum
Skin
Nasal Passage
Gizzard
C
- 80% of the kidney’s energy requirement is used for ___ transport.
K+
Na+
Cl-
Water
None of the above
b
- What are the three layers of the molecular sieve and their basic structure?
glomerular wall - flattened endothelial cells
basement membrane - gel layer of collagen and glycoprts
inner layer bowmans capsule - podocytes with filtration flits
- What are two of the three aspects of the glomerular membrane that glomerular filtration rate (GFR) depends on?
net filtration pressure, SA and permeability of glomerular membrane
Which of the following are the effects of natriuretic peptides?
A. Natriuresis
B. Increase GFR
C. Inhibit Na+ reabsorption
D. Decrease cardiac output
E. All the above
e
What causes renal diseases?
A. Cellular damage from diabetes
B. ethylene glycol
C. Inappropriate immune responses
D. Obstruction of urine flow
E. All the above
e