Final Flashcards

1
Q

Micro evolution

A

Any allele may increase or decrease in frequency in a population

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

Non random mating

A

Individuals of one genotype reproduce more often with each other

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

Genetic drift

A

When a small group separates from the larger whole

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

Speciation

A

Process by which new species form.

Reproductive isolating mechanisms are always part of the process.

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

Reproductive isolation

A

The end of gene exchange between populations

Beginning of speciation.

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

Allopatric speciation

A

Physical barrier arises and ends gene flow between populations.

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

Sympatric speciation

A

New species form within a home range if an existing species in the absence of a physical barrier.

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

Parapatric speciation

A

Populations in contact song a common border evolve into distinct species

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

Stasis

A

A lineage exists for millions of years with little or no change

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

Natural populations are never in?

A

Genetic equilibrium

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

Consist of stems leaves and flowers
Transports things
Photosynthesis

A

Shoots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Absorption of water
Transport if water
Storage if food
Interacts with soil and fungi

A

Root

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

Meristems

A

Where tissues originate

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

Apical meristem

A

Tips of roots and stems responsible for growth and elongation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Responsible for the increase in diameter of older roots and attend

A

Lateral meristem

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

Ground tissue

A

Makes up bulk of the plant body

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

Vascular tissue

A

Contains two kinds of conducting tissues that distribute water and solutes through the plant body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Dermal tissue

A

Covers and protects the plants surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Phloem

A

Transports sugars and other solutes throughout the plant body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Sieve tube members

A

Located in the phloem

Connects cytoplasm of adjacent cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Companion cells

A

Adjacent sieve tube members

Helps load and unload sugars

22
Q

Endodermis

A

Innermost layer of the cortex

Surrounds the vascular cylinder and helps control water mincemeat into it

23
Q

Gibberellins

A

Regulate height, play Key role in rapid stem growth

24
Q

Effector helper T cells

A

Clones

Secrete interleukins, which stimulate further cell divisions and differentiation

25
Kill infected cells by punching holes in their cell membranes with proteins called perforins.
Cytotoxic T cells
26
IgM
First immunoglobulin to be secreted during immune response | Trigger the complement cascade
27
IgG
Activate complement proteins and neutralize many toxins | Can cross placenta to protect the fetus
28
IgA
Present in saliva Tears and mucus | Help repel invaders at the start of the respiratory system
29
IgE
Secretes histamine
30
Active immunization
Deliberate production of memory cells by a vaccine that is made from killed or weakened bacteria or viruses
31
Incomplete digestive system
Has one opening
32
Complete digestive system
Has two openings
33
What 5 regions of the vertebrate digestive tract make up the Alimentary canal
Mouth Esophagus Stomach Small large intestine
34
Vertebrate digestive tract performs 5 functions
``` Ingestion Mechanical processing and motility Digestion- chemical breakdown Absorption Elimination ```
35
Pepsin
Begins digestion of proteins
36
Small intestine
Carb and fat digestion and completes protein digestion.
37
Jejunum
Central section of small intestine
38
Duodenum
Upper section of small intestine
39
ileum
Rest of small intestine
40
Liver
Destroys old blood cells Adds glucose to bloodstream Produces bile which is stored in the gallbladder
41
Mucosa
Epithelial lining that faces the lumen of the gut. | In the small intestine
42
Sub mucosa in the small intestine
Contains blood and lymph vessels
43
Large intestine
Stores and concentrates feces | Cecum is at junction of colon and connects to anus
44
Water re absorption
Sodium is actively transported out of the colon and water follows
45
Interspecific competition
Both species are harmed by the interaction
46
Predation and parasitism
One species benefits while the other is harmed
47
Mutualism
Bothe species benefit
48
Exploitation competition
All individuals have equal access to a resource but differ in their ability to get it. (Speed)
49
Interference competition
Some individuals limit others access to the resource
50
Competitive exclusion
Complete competitors can't coexist indefinitely