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Organisms, Populations and Ecosystems Flashcards | StudBud
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Organisms, Populations and Ecosystems
Organisms, Populations and Ecosystems
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Final Exam Review Project
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
Define Gene pool:
Combined genetic informatio of all members in a population
Species entering a new habitat
Sex cells (Egg or sperm)
Evolution of new species
2
Which of the following is true of a zygote?
It produces haploid male gametophytes
It is an unfertilized egg
It forms into a blastocyst
It is made up of only one cell
3
What causes blood pressure?
cholesterol in the blood
contraction of the ventricles in the heart
removal of oxygen from the blood
stress that exercise puts on heart muscle
4
Define Alleles:
Blood vessels that carry blood away from heart
Sex cells (Egg or sperm)
Evolution of new species
Differnt forms of the same gene
5
Define Carrying capacity:
Organism that only has one cell
Change in genetic material
Amount of population an environment can support over time
<div>Dying out of species</div>
6
A plant lives in an area with limited sunlight. Which adaptation would be most useful?
Deep Roots
Thin Cuticle
Large Leaves
Coloful Leaves
7
What is the term for a strong response to a harmless antigen in the environment?
an allergy
an autoimmune disease
cell-mediated immunity
inflammatory response
8
What is biology?
The study of the sun
Study of people's thoughts,etc.
Study of life
A solar system.
9
Define Crossing-over:
Regrowth of damaged cell
None of the above
Mutation in gene
Chromsomes break off and exchange
10
Which of these organisms would most likely be found at the top of an energy pyramid?
Clams - a primary consumer
Sardines - a primary consumer
Sharks - a secondary consumer
Kelp - a primary producer
11
Which following factors would most directly affect blood flow through the circulatory system?
blood sugar
outside temperature
blood pressure
respiratory rate
12
Define oraganisms:
Openings in the leaves of plants where gas exchange occurs
Movement of organisms out of an area
Movement of organisms into an area
An individual animal, plant, or single-celled life form
13
The way that crimes are solved today was affected by which of the following technologies?
Genetic modificationswer 4
gene therapy
DNA fingerprinting
genetic testing
14
Which statement describes the role of flowers in plant survival?
Flowers can absorb carbon dioxide for sugar production.
Flowers contain cells that carry out photosynthesis.
Flowers produce oxygen through cellular respiration.
Flowers contain cells that produce gametes.
15
Which of the following describes fertilization?
cell differentiation to form a blastula
a sperm joining an egg to form a zygote
formation of germ layers in a deuterostome
sperm and egg production
16
Plant cells specialized for cell division are most likely found in what part of the plant?
Leaf epidermis
Stem epidermis
Root tips
Vascular Tissue
17
Define Seed:
Change in a gene
Field of classifying organisms
Dying out species
Productive structure that contains plant embryo
18
If the xylem in a young tree is damaged, which process is first affected?
Performing photosynthesis
Absorbing water from soil
Transporting sugar to roots
Transporting water to leaves
19
What is the main function of leaves?
None of the above
Both
Leaves provide a place for photosynthesis to occur.
Leaves provide support for growth and a place to store food.
20
Define Extinction:
Florishing species
Chromosomes broken off and exchanged
Dying out of species
Vessle that carries blood to heart
21
Define Arteries:
Organ system that controls body functions
Blood Vessles that carry blood to heart
Blood Vessels that carry blood away from heart
Combination of genes in a gene pool
22
Why are there so few aquatic plants and phytoplankton that stay the bottom zones in the ocean?
Water is a limiting factor.
The ocean floor contains many decomposers.
The temperature in these zones is extremely low.
Most sunlight is absorbed before reaching these levels.
23
Which of the following are abiotic factors that shape ecosystems?
Niches, trees, and bacteria
Wind, precipitation, and soil type
Sunlight, mushrooms, and wind
Worms, plants and temperature
24
Define Genome:
All of the above
Embryo of a plant
A mass of gas that protects the planet
Hereditary information of a particular species
25
Complete burning of plant material returns carbon primarily to the
Atmosphere
Herbivores
Vegetation
Water
26
Define speciation:
Species with repeating abilites
Species who is dying out
Process where species over populate
Evolution of new species
27
What is the main purpose of seeds in plants that have them?
To be fertilized by other plants.
To protect and distribute the zygote.
To entice animals to eat the plant
.To store water for the mother plant
28
What is the body's first line of defense against infection by foreign organisms?
the skin
antibodies
lymph nodes
white blood cells
29
Which structure in the leaf controls the opening and closing of the stoma?
Guard Cell
Cuticle
Epidermis
Spongy mesophyll
30
Define Cone:
Housing of reproductive anatomy of pine tree
Study of distribution of Earth's organisms
None of the above
Early development of organism
