6452428
Descripción
Test por anajaneee ., actualizado hace más de 1 año
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Creado por anajaneee .
hace casi 8 años
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Pregunta 1
Pregunta
_______ gives variety.
Respuesta
-
differences
-
similarities
Pregunta 2
Pregunta
___________ give stability.
Respuesta
-
similarities
-
differences
Pregunta 3
Pregunta
DNA are long thread-like molecules coiled into genes.
Respuesta
- True
- False
Pregunta 4
Pregunta
Chromosome are essentially DNA molecules.
Respuesta
- True
- False
Pregunta 5
Pregunta
Genes are specific region of DNA located linearly on specific chromosomes.
Respuesta
- True
- False
Pregunta 6
Pregunta
How many kinds of chromosomes do diploid cells contain?
Respuesta
-
one (n)
-
two (2n)
Pregunta 7
Pregunta
How many kinds of chromosomes do haploid cells contain?
Respuesta
-
one (n)
-
two (2n)
Pregunta 8
Pregunta
Do most organisms have diploid cells or haploid cells?
Respuesta
-
diploid
-
haploid
Pregunta 9
Pregunta
[blank_start]Cell division[blank_end] is the natural division of [blank_start]one[blank_end] cell into [blank_start]two[blank_end] cells. It is the division of the [blank_start]cytoplasm[blank_end].
Respuesta
-
Cell division
-
one
-
two
-
cytoplasm
Pregunta 10
Pregunta
The process when an [blank_start]animal[blank_end] cell pinches itself in half during the process of cytokinesis is called [blank_start]cleavage[blank_end].
Respuesta
-
animal
-
cleavage
Pregunta 11
Pregunta
In cell division of [blank_start]plant[blank_end] cells, a cell will build a wall between two current walls by [blank_start]coalescence[blank_end] of cells, forming a plate that enlarges.
Respuesta
-
plant
-
coalescence
Pregunta 12
Pregunta
The two types of nuclear division are [blank_start]mitosis[blank_end] and [blank_start]meiosis[blank_end].
Respuesta
-
mitosis
-
meiosis
Pregunta 13
Pregunta
Nuclear division occurs before cytokinesis.
Respuesta
- True
- False
Pregunta 14
Pregunta
In the process of [blank_start]mitosis[blank_end], one nucleus divides into two.
Respuesta
-
mitosis
Pregunta 15
Pregunta
Mitosis has ONE duplication and ONE division.
Respuesta
- True
- False
Pregunta 16
Pregunta
If the parent cell has 16 chromosomes and goes through the process of MITOSIS, how many daughter cells will it produce, and with how many chromosomes?
Respuesta
-
2 daughter cells, 16 chromosomes each
-
2 daughter cells, 8 chromosomes each
-
4 daughter cells, 8 chromosomes each
-
4 daughter cells, 16 chromosomes each
Pregunta 17
Pregunta
[blank_start]Mitosis[blank_end] makes two nuclei from one nucleus and the two new nuclei contain the same number of chromosomes as the parent.
Respuesta
-
Mitosis
Pregunta 18
Pregunta
Essentially, when mitosis ends, the organism is dead.
Respuesta
- True
- False
Pregunta 19
Pregunta
The functionality of mitosis is:
Respuesta
-
Make more identical cells
-
The growth of multicellular organisms
-
asexual reproduction for unicellular organisms
-
None of the above
Pregunta 20
Pregunta
Meiosis is a specialized type of nuclear division that only occurs at certain times in certain organisms.
Respuesta
- True
- False
Pregunta 21
Pregunta
Meiosis has [blank_start]ONE[blank_end] duplication and [blank_start]TWO[blank_end] divisions.
Respuesta
-
ONE
-
TWO
Pregunta 22
Pregunta
If a parent cell has 16 chromosomes and goes through the process of meiosis, how many daughter cells will it produce and with how many chromosomes each?
Respuesta
-
2 daughter cells, 16 chromosomes each
-
2 daughter cells, 8 chromosomes each
-
4 daughter cells, 16 chromosomes each
-
4 daughter cells, 8 chromosomes each
Pregunta 23
Pregunta
Meiosis does not end after Division II.
Respuesta
- True
- False
Pregunta 24
Pregunta
The functionality of meiosis is
Respuesta
-
take diploid nuclei, convert to haploid cells
-
sexual reproduction; producing gametes and spores
-
asexual reproduction
Pregunta 25
Pregunta
In most organisms, meiosis does not produce gametes or spores
Respuesta
- True
- False
Pregunta 26
Pregunta
Evolution is the [blank_start]grand unifying theory[blank_end] of biology.
Respuesta
-
grand unifying theory
Pregunta 27
Pregunta
Who first proposed the idea of gradualism in a geological sense?
Respuesta
-
Darwin
-
Hulton
-
Wallace
Pregunta 28
Pregunta
Lamark proposed a mechanism for how life and things change throughout time: the idea of USE AND DISUSE; that body parts used most evolve to become bigger and stronger.
Respuesta
- True
- False
Pregunta 29
Pregunta
[blank_start]Lyell[blank_end], a geologist, proposed the idea that gradualism is still happening at the same rate. He studied geological records and published "Principles of Geology."
Respuesta
-
Lyell
Pregunta 30
Pregunta
Darwin thought that Lyell's gradualistic ideas could apply biologically too.
Respuesta
- True
- False
Pregunta 31
Pregunta
Darwin's 3 observations of nature include:
Respuesta
-
Unity of Life
-
Diversity of Life
-
Match between organisms & their environment; descent with modification
-
gradualism
Pregunta 32
Pregunta
Darwinism (the theory of evolution) consists of these major components:
Respuesta
-
perpetual change (always changing)
-
Common descent (living things have unified history, life comes from life)
-
Multiplication of Species (a single ancestral population can split to produce 2 or more populations, becoming different from each other)**
-
Gradualism (populations of organisms accumulate small changes over long periods of time)
-
Natural Selection (mechanism that explains how organisms appear to be designed to meet the demands of their environments "adaptation"
-
none of the above
Pregunta 33
Pregunta
[blank_start]Artificial[blank_end] selection is the process through which humans modify species over many generations by selecting and breeding individuals that possess desired traits.
Respuesta
-
Artificial
Pregunta 34
Pregunta
Darwin's 4 postulates are:
Respuesta
-
differences - individuals within a population differ from one another
-
inheritance - the differences are passed down from parent to offspring
-
some individuals are more successful at surviving and reproducing than others
-
the successful individuals are not merely luck, but succeed because of the variant traits they have inherited and will pass onto their offspring
-
gradualism
-
perpetual change
-
multiplication of species
Pregunta 35
Pregunta
Individuals with favorable traits will, on average, survive better than those with unfavorable traits; known as differential survival.
Respuesta
- True
- False
Pregunta 36
Pregunta
Individuals with more favorable traits will usually produce more offspring; known as differential reproduction.
Respuesta
- True
- False
Pregunta 37
Pregunta
[blank_start]Adaptation[blank_end] is an inherited characteristic of an organism that enhances their survival and reproduction in specific environments. A trait that increases an organism's fitness relative to individuals lacking it is called [blank_start]relative fitness[blank_end]; the contribution an individual makes to the gene pool of the next generation via [blank_start]reproduction[blank_end].
Respuesta
-
Adaptation
-
relative fitness
-
reproduction
Pregunta 38
Pregunta
Natural selection is the only process that can naturally create adaptation.
Respuesta
- True
- False
Pregunta 39
Pregunta
Natural selection operates on [blank_start]individuals[blank_end], selected for/against (more fit, less fit). (not an all or none process)
Respuesta
-
individuals
Pregunta 40
Pregunta
When faced with a changing environment, what options does a population have?
Respuesta
-
adapt (via ns)
-
move/disperse (if there is somewhere to go
-
go extinct, die
Pregunta 41
Pregunta
Natural selection can only act on existing variations
Respuesta
- True
- False
Pregunta 42
Pregunta
Evolution is limited by historical constraints.
Respuesta
- True
- False
Pregunta 43
Pregunta
Adaptations are often compromises
Respuesta
- True
- False
Pregunta 44
Pregunta
Chance, natural selection, and the environment all interact.
Respuesta
- True
- False
Pregunta 45
Pregunta
Which concept distinguishes a species using distinctive external features?
Respuesta
-
Morphological
-
Biological
-
Ecological
-
Phylogenetic
Pregunta 46
Pregunta
Which concept says a group of population whose member have the potential to interbreed and produce viable, fertile offspring among their species?
Respuesta
-
Morphological
-
Biological
-
Ecological
-
Phylogenetic
Pregunta 47
Pregunta
Which concept views a species based on its ecological niche? (niche=sum of species using biotic and abiotic resources in its environment)
Respuesta
-
Morphological
-
Biological
-
Ecological
-
Phlyogenetic
Pregunta 48
Pregunta
Which concept focuses on the smallest group of individuals on a phylogenetic tree? Phylogenetic defines a species as the smallest group of individuals that share a common ancestor (e.g. morphology, molecular sequences)
Respuesta
-
Morphological
-
Biological
-
ecological
-
phylogenetic
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