QUESTION 1 Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are p

Question

QUESTION 1

Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are

produced in both male and female humans.

only produced in female humans.

constantly secreted into the bloodstream of males.

produced in the ovaries.

produced in the testes.

QUESTION 2

Immature eggs are called

blastocysts.

basal cells.

follicles.

ovaries.

oocytes.

QUESTION 3

Random changes in gene frequency that occur in small populations describes the concept of

sympatric speciation.

convergent evolution.

parapatric speciation.

adaptive radiation.

genetic drift.

QUESTION 4

Negative feedback loops act to

cause expulsion of milk during breastfeeding.

cause milk production after childbirth.

cause an erection of the penis when stimulated.

cause uterine contractions during childbirth.

control sperm production.

QUESTION 5

A population in Hardy-Weinberg equilibrium

is under no selective pressures.

consists of allele frequencies that are constantly changing.

requires a small population size.

consists of genotype frequencies that are constantly changing.

is very common in nature.

QUESTION 6

Which of the following is not true of the punctuated equilibrium theory?

It proposes that most evolutionary change is concentrated in relatively brief episodes of change.

It suggests that most species undergo little phenotypic change during most of their evolutionary duration.

It was inspired in part by patterns observed in the fossil record.

It suggests that subgroups diverge and evolve at about equal and constant rates.

It appears to be well supported by the fossil record.

QUESTION 7

Most mutations lead to a decreased chance of survival for the mutant organism. Rarely, a mutation can provide an increased chance of survival. These rare mutations provide a(n) _____________________ for the mutant.

selective advantage

selective disadvantage

environmental susceptibility

directional shift

adaptive

QUESTION 8

Chemical compounds secreted by mammals and insects to communicate sexual readiness are called

hormones.

developers.

pheromones.

testosterones.

estrogens.

QUESTION 9

As opposed to external fertilization, internal fertilization ensures that

the number of sperm and eggs produced will be equal.

sperm and egg will be released simultaneously.

sperm will be protected until they can unite with the eggs.

only the fittest of sperm and egg combinations will survive.

all of the sperm will fertilize eggs.

QUESTION 10

Embryonic development includes all of the following except

fertilization.

cleavage.

growth.

organogenesis.

gastrulation.

QUESTION 11

Vestigial organs

include the human appendix and wisdom teeth and a snakes hipbones.

are not found in present-day organisms.

are similar in many organisms.

did not have a function when they first developed, but do so today.

must have evolved individually in different organisms.

QUESTION 12

Human chorionic gonadotropin (hCG)

is stored in the ovaries.

acts as a hormone signaling menstruation.

can be used to reveal pregnancy.

is produced by the amnion.

is needed to form the placenta.

QUESTION 13

After being produced in the seminiferous tubules, sperm mature in the

seminal vesicle.

urethra.

ejaculatory duct.

epididymis.

vas deferens.

QUESTION 14

Which of the following is the best description of an adaptation?

a trait that will be beneficial in the future

a trait that is currently beneficial to survival

a trait that is of no advantage to survival

a trait that was beneficial to survival in the past

an environmental change that selects for certain traits

QUESTION 15

Animals that possess both male and female sexual organs

are parthenogenetic and typically self-fertilize.

are hermaphroditic and typically self-fertilize.

are hermaphroditic and typically cross-fertilize.

are dioecious and typically cross-fertilize.

are dioecious and typically self-fertilize.

QUESTION 16

This type of selection favors both extremes of the phenotype spectrum within a population.

directional

stabilizing

disruptive

neutral

natural

QUESTION 17

Which of the following statements about natural selection is true?

Natural selection results in those individuals within a population who are best-adapted surviving and producing more offspring.

All individuals within a population have an equal likelihood of survival. Survival is based on chance.

Natural selection causes variations to arise within a population.

Natural selection leads to increased likelihood of survival for certain individuals based on variation. The variation must come from outside the population.

Natural selection leads to extinction.

QUESTION 18

The primary male hormone is

produced in the brain.

produced throughout a males entire lifetime.

testosterone.

estrogen.

only involved in sperm production.

QUESTION 19

Up until the late eighteenth and early nineteenth centuries, many naturalists believed that all species of living organism(s) had been created separately and had remained unchanged since the creation. Around that time, scientific research provided findings that were contradictory to that idea. All of the following are findings that contradict the idea of a single creation. Choose the exception.

Some fossils of extinct organisms are quite different from living organisms.

The platypus is only found in Australia and the dodo was only found on Madagascar.

As scientists explored more of the earth, they found that different groups of organisms were found in the different regions.

The limbs of some mammals serve the same purpose but their bone patterns are very different.

Even though the limbs of various mammals carry out different functions (swimming, gliding, running, holding, etc.), the bone patterns are very similar.

QUESTION 20

On a molecular level, all organisms

have the same bases in DNA and RNA, the same amino acids in proteins, and use the same genetic code.

use different means of storing genetic information.

show no similarities.

have the same bases in DNA and RNA, but different amino acids in proteins.

have the same bases in DNA and RNA, the same amino acids in proteins, but use different genetic codes.

A.

produced in both male and female humans.

B.

only produced in female humans.

C.

constantly secreted into the bloodstream of males.

D.

produced in the ovaries.

E.

produced in the testes.

Explanation / Answer

Question 1:

Both FSH and LH hormones are produced in females only. FSH stimulates the ovarian follicle, and causes an egg to grow. FSH also stimulates the production of estrogen in the follicle. LH causes the egg to be released from the ovary through ovulation.

Hence, the correct option is (B) only produced in female humans.

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