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What causes seed germination to begin?
a) warm temperature
b) exposure to water
c) at least 9 hours of daylight in a 24-hour period
d) soil rich in organic material
Which of the following is characteristic of angiosperms?
a) production of cones
b) seeds not protected by fruit
c) growth from a rhizome
d) production of flowers
Which statement applies to asexual reproduction?
a) sperm and egg are required
b) offspring are genetically different from the parents
c) most animals reproduce in this way
d) offspring are genetically identical to the parent
Which term describes the uniting of a sperm and egg to form a zygote?
a) fertilization
b) meiosis
c) pollination
d) germination
Organisms are classified as producers if they are able to
a) remove oxygen from the air
b) remove microbes from the soil
c) make their own food
d) make carbon dioxide
A most likely cause for a person's loss of body weight might be taking in
a) fewer Calories per day than required
b) more Calories per day than required
c) the same number of Calories per day as required
d)
The sum of all chemical reactions in an organism is called
a) metabolism
b) exercise
c) adaptation
d) respiration
Which process takes place within chloroplasts?
a) metamorphosis
b) photosynthesis
c) sexual reproduction
d) cellular division
The energy required for organisms to respond to the environment comes from
a) vitamins
b) minerals
c) water
d) food
The sequence, DNA---- X ---- chromosome, represents the organization of the genetic information in the nucleus of a cell. One term in the sequence is represented by X. The X in the sequence most likely represents a
a) gene
b) mutation
c) clone
d) protein
Chemicals that regulate and control human body functions are known as
a) fats
b) hormones
c) carbohydrates
d) muscular
Which substance is produced during cellular respiration?
a) oxygen
b) sugar
c) carbon dioxide
d) vitamins
Which human organ system removes liquid and gaseous waste from the body?
a) endocrine
b) excretory
c) nervous
d) muscular
The breaking down of food in the human digestive system is both chemical and
a) geothermal
b) mechanical
c) electrical
d) potential
Which sequence represents increasing levels of organization in the human body?
a) organ ---- organ system ---- cell ---- tissue
b) organ ---- cell ---- organ system ---- tissue
c) cell ---- tissue ---- organ ---- organ sysem
d) cell ---- organ ---- tissue ---- organ system
When a plant dies, the materials in the plant
a) are lost forever
b) usually become fossils
c) are recycled by decomposers
d) react with carbon dioxide
In addition to cytoplasm, most human body cells also have
a) chloroplasts and a cell wall
b) chloroplasts and a cell membrane
c) genetic material and a cell wall
d) genetic material and a cell membrane
Heredity includes all of the following except
a) traits
b) nutrients
c) chromosomes
d) phenotype
What is a mutation?
a) A change in a gene which is harmful, beneficial, or has no effect at all
b) A change in a gene which is only beneficial
c) A change in a gene which is only harmful
d) No change in a gene
Down's Syndrome is an example of
a) incomplete dominance
b) genetic engineering
c) a chromosome disorder
d) a sex linked disorder
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