Heredity And Evolution: Question Preview (ID: 18812)

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Which of these cell structures is involved in the inheritance of traits?
a) chloroplast
b) cytoplasm
c) chromosome
d) mitochondrion

Three finch species observed by Charles Darwin on the Galapagos Islands each had different beak shapes. Which statement is MOST LIKELY true about these finches?
a) The different beaks are the result of adaptations to eating certain kinds of food on the islands.
b) The different beaks are the result of adaptations to the amount of food available: the more food, the larger the beak.
c) The different beaks are not related to the food the birds eat but to the length of the finch's life.
d) The different beaks are not related to the food the birds eat but to the season.

Which pair of organ systems work together to fight viral diseases such as the Ou?
a) respiratory and nervous
b) circulatory and immune
c) digestive and reproductive
d) immune and excretory

What happens if an environment changes and a population in that environment has no adaptations for the new environment?
a) The population forms a new species.
b) The population tries to change in its environment.
c) The population tries to develop adaptations to prevent extinction.
d) The population is not likely to survive and may become extinct.

A bird species feeds on the seeds of a particular tree. A drought causes the outer covering of the seeds to become thicker and harder. After many generations of drought, what is the MOST LIKEL Y effect of this change on the birds?
a) There will be no physical or behavioral change in the birds.
b) All the birds will starve, and the species will become extinct.
c) The birds will have stronger beaks.
d) Some of the birds will be larger and some will be smaller.

A certain species of trilobite is known to have lived 300 million years ago. If this index fossil was found in a rock layer containing other fossils, what could you infer about the other fossils?
a) The rock layer killed the trilobite and the other fossils.
b) The other fossils are about 300 million years old.
c) The organisms that formed the other fossils went extinct.
d) The rock layer formed before the trilobite or the other fossi ls.

Pea plants have green seeds only if a plant receives an allele for green seeds from each of its parents. What kind of allele produces green seeds in pea plants?
a) dominant
b) recessIve
c) hybrid
d) mutated

Variations may allow the physical characteristics of organisms to change over successive generations. Which of the following are MOST LIKELY to lead to variations within a species over time?
a) photosynthesis and asexual reproduction
b) mutation and sexual reproduction
c) selective breeding and asexual reproduction
d) photosynthesis and sexual reproduction

The type of reproduction that involves the joining of two specialized cells called gametes is
a) vegetative propagation
b) sexual reproduction.
c) budding.
d) regeneration .

Some kinds of Staphylococcus aureus bacteria have become resistant to antibiotics. According to the theory of natural selection, what is their resistance an example of?
a) extinction
b) asexual reproduction
c) mutation
d) adaptation

What is inbreeding an example or?
a) natural selection
b) selective breeding
c) evolution
d) mutation

How do scientists learn about organisms such as dinosaurs that disappeared from Earth long ago?
a) by examining igneous rocks
b) by studying decaying organisms
c) by examining fossils
d) by using only their imaginations

Biological evolution means that the traits of groups of organisms change over time. Which information would provide the least convincing evidence for evolution?
a) The fossil record shows that humans have developed a smaller chin in the last few hundred thousand years.
b) The horses of today have longer leg bones than horses of the past.
c) The bones of the human hand and the whale flipper share a basic common form.
d) The development of air conditioning allows more people to live in the desert Southwest.

Some mushrooms produce spores that do not require fertilization. Reproduction by spores in these mushrooms is an example of
a) vegeta tive propagation
b) sexual reproduction
c) budding
d) asexual reproduction

What type of clues can body fossils give us about a fossilized animal?
a) the size and shape of the animal
b) whether the animal had offspring
c) whether the animal enjoyed runnIng
d) the color of the animal's fur

Fossil records show that a bird once lived throughout the US suddenly died off in the habitat east of the Rocky Mountains. Which of the following BEST explains why this occurred?
a) When the Rocky Mountains formed it split the birds to that the birds in the east couldn't mate with the birds in the west.
b) Predators were more common on the west side of the Rocky Mountains.
c) The climate changed on the east side of the Rocky Mountains, and the birds did not have adaptations for the new environment.
d) The habitat was more desirable on the west side of the Rocky Mountains, so the birds all moved there.

Which of these BEST describes why most of the puppies in a litter look similar to their parents?
a) The puppies and their parents eat the same kinds of food.
b) The puppies and their parents carry out the same life processes.
c) The puppies and their parents have similar genes.
d) The puppies and their parents have the same organ systems.

Which of the following is a true statement about asexual reproduction?
a) It requires two parents.
b) It increases genetic diversity.
c) It results in offspring that are genetically identical.
d) It does not involve chromosomes

Which of the following BEST explains why humans selectively breed plants?
a) to produce offspring that are genetically identical
b) to produce offspring that have greater genetic variation
c) to produce offspring that have specific traits
d) to produce offspring that have no genetic similarities to one another

What can the location of a fossil in a rock layer tell scientists about the organism?
a) how long ago the organism lived
b) that the organism is now extinct
c) how many offspring the organism had
d) the exact age of the fossil

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