Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biology Of Mammals > Reproduction > Flashcards

Reproduction Flashcards

(48 cards)

Start Studying
1
Q

What is viviparity?

A

Giving birth to live young

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What can the baculum be used to identify?

A

Age and taxonomy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the simplex uterus

A

Entire uterus is fused into one single organ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is one method of reproductive delay?

A

Sperm storage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How can reproductive suppression occur?

A

Suppress own Suppress others

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What defines mammalian reproduction?

A

Egg-uterus relationship

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Which species have a simplex uterus?

A

Higher primates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does delayed development occur?

A

Egg is fertilised. Blastocyst implants into uterus lining

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why does infanticide occur?

A

New dominant male kills offspring to bring female back into oestrus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is polygyny

A

Multiple females single males

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which species have a bipartite uterus?

A

Whales

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is parturition?

A

The act of giving birth to young

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the characteristics monotreme reproduction?

A

Egg laying, single functioning ovary, cloaca, mammary glands, no nipples

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the functional of epithelial spines?

A

Remove sperm from multiple matings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which species have bicornuate uterus?

A

Bats and carnivores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 2 derived characteristics of mammals?

A

Hair, mammary glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the bicornuate uterus?

A

Heart-shaped uterus. Upper parts are separate but fused at the bottom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How are copulation cycles maintained?

A

Social and environmental cues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what are the characteristics marsupial reproduction?

A

Cloaca, basic placenta, brief gestation, long lactation, development in a pouch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Why do stoats have delayed implantation?

Study These Flashcards
A

Males mate with altricial young, females arent big enough to cope with birth and to allow young to develop

17
Q

What is Corpus luteum?

Study These Flashcards
A

Hormone secreting structure that develops in an ovary

17
Q

What are the stages in metatherian lactation?

Study These Flashcards
A

Mammogenesis Early lactogenesis Late lactogenesis

18
Q

Which 2 species lay eggs?

Study These Flashcards
A

Platypus and echidna

19
Q

What is polyandry?

Study These Flashcards
A

Multiple males single female

21
In which orders are the testes abdominal?
Monotremes, Cetacea, Aenarthra, Paenungulata
21
How does delayed implantation occur?
Embryonic diapause. Blastocyst maintained in a state of dormancy
22
Why does reproductive suppress occur?
Reproduction is costly, need to maximise long term fitness
23
What is unique about the marsupial penis?
It is bifid into 2 halves
24
What are the parts of the male anatomy?
Testes, penis, baculum
25
Why is the marsupial penis the way it is?
To allow sperm to be deposited in both sides of the vagina
27
What is the baculum?
Penis bone
28
What are diphyodont teeth?
2 sets of teeth (milk and permanent)
30
What are the characteristics of eutherian reproduction?
Advanced placenta, towards nutrition transfer via lactation.
31
What are the 6 placental structures?
Eputheliochorial Syndesmochorial Endotheliochorial Hemochorial Endothelioendothelial Hemoendothelial
32
What occurs in marsupial birth?
New borns are altricial, crawl to pouch
34
Which species have a duplex uterus?
Rodents, marsupials, lagomorphs
35
What is the bipartite uterus?
2 separate uteri but share a single cervix
37
What are the 4 types of uterus?
Duplex, bipartite, bicornuate, simplex
39
What is unique about the platypus vagina?
Only the left oviduct is functional
40
Which species are the only ones with male lactation?
Dayak fruit bat
41
What is a monoestrous cycle?
One cycle per year
42
What is the bruce effect?
Female rodents terminate pregancies following exposure to the scent of unfamiliar males
43
How does sperm storage work?
Copulation before torpor, sperm heads embedded in uterus lining
44
What is the duplex uterus?
2 wholly separate uteri with one fallopian tube
45
What is a polyoestrous cycle?
More than one a year
46
What is semelparity?
Investing everything into one mating event to create best conditions and secure best female
47
What is unique about the echidna penis?
Bifid - 4 rosetters, only 2 are fucntional
48
What is the function of mammary glands?
Transfer nutrients

Biology Of Mammals (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions