Drugs that lead to birth defects in the formation of the limbs are most damaging when the conceptus is exposed to them during weeks 1–2 of development, before the placenta is fully formed. 4–8 of development, when limbs are undergoing peak development. 12–16 of development, when limbs have formed but are not fully mature. 24–28 of development, when plasticity of surrounding tissues has been lost.

4–8 of development, when limbs are undergoing peak development.

During pregnancy, estrogen and progesterone from the placenta stimulate FSH and LH secretion and thereby stimulate ovarian follicle development. inhibit FSH and LH secretion and thereby arrest ovarian follicle development. stimulate GnRH secretion and thereby inhibit overgrowth of the uterus. inhibit release of corticotropin-releasing hormone and thereby prevent excessive stress responses.

inhibit FSH and LH secretion and thereby arrest ovarian follicle development.

Changes in the size of the uterus during pregnancy are due to hypertrophy but not hyperplasia. hyperplasia but not hypertrophy. both hypertrophy and hyperplasia.

both hypertrophy and hyperplasia.

Prolactin is secreted from the ________ gland, and its levels ___________ during pregnancy. hypothalamus; double mammary; double corpus luteum; increase tenfold anterior pituitary; increase tenfold

anterior pituitary; increase tenfold

Edema and varicose veins in the lower extremities sometimes develop in the third trimester of a pregnancy due to decreased cardiac output. elevated blood pressure. compression of abdominal blood vessels. elevated hematocrit.

compression of abdominal blood vessels.

Braxton-Hicks contractions tend to be regular and increasingly frequent as time passes. increasingly intense as time passes. irregularly spaced and do not become more frequent as time passes. regular in timing but relatively weak.

irregularly spaced and do not become more frequent as time passes.

Which statement accurately describes the effects of oxytocin and prostaglandins on uterine contractions? Both oxytocin and prostaglandins stimulate uterine contraction. Both oxytocin and prostaglandins inhibit uterine contraction. Oxytocin stimulates uterine contractions, but prostaglandins inhibit them. Prostaglandins stimulate uterine contractions, but oxytocin inhibits them.

Both oxytocin and prostaglandins stimulate uterine contraction.

Compared to breast milk, colostrum contains more fat and more immunoglobulins. more fat but less immunoglobulins. less fat but more immunoglobulins. less fat and less immunoglobulins.

less fat but more immunoglobulins.

In a mother who has recently delivered a child, afterpains occur when dopamine triggers uterine contractions. oxytocin triggers uterine contractions. estrogen triggers prostaglandin release. progesterone inhibits prostaglandin release.

oxytocin triggers uterine contractions.

Individuals who are described as heterozygous have different genotypes than the predominant genotype. genes for one trait on several chromosomes. alleles for a particular trait. parents who displayed two different phenotypes.

alleles for a particular trait.

Consider a mother with normal vision who has a son with red-green color blindness. The mother was a "carrier" of the affected gene, as she had a normal phenotype but two recessive alleles. two dominant alleles. one dominant and one recessive allele. a codominant set of alleles. an incompletely penetrating genotype.

one dominant and one recessive allele.

Fetal alcohol syndrome involves a disorder that alters the sequence of base pairs in the genes of the fetus. structural integrity of the chromosomes of the fetus. expression of genes in the fetus. gametes of the fetus.

expression of genes in the fetus.

A&P: Final Exam - Ch. 29

Flashcard

•

Science

•

University

•

Practice Problem

•

Hard

Makayla Snow

FREE Resource

Student preview

50 questions

Show all answers

FLASHCARD QUESTION

Front

The pre-embryonic period ends when

a morula is formed.

the zygote undergoes cleavage.

the blastocyst implants in the uterus.

the morula develops a trophoblast.

Back

the blastocyst implants in the uterus.

FLASHCARD QUESTION

Front

Which type of gamete remains viable for a longer time after it enters the female reproductive tract?

Sperm

Egg

Back

Sperm

FLASHCARD QUESTION

Front

Capacitation lasts several ________ and involves removal of ___________.

seconds; lipids from the surface of the egg

hours; proteins from the surface of the sperm

days; carbohydrates from the surface of the egg

weeks; glycolipids from the surface of the sperm

Back

hours; proteins from the surface of the sperm

FLASHCARD QUESTION

Front

Cleavage involves a series of ________ divisions and __________ in the overall size of the conceptus.

meiotic; an increase

meiotic; no change

meiotic; a decrease

mitotic; no change

mitotic; an increase

Back

mitotic; no change

FLASHCARD QUESTION

Front

At the 16-cell stage, the conceptus is known as a(n)

trophoblast.

blastocyst.

embryoblast.

morula.

zygote.

Back

morula.

FLASHCARD QUESTION

Front

The process by which a blastocyst embeds within the uterine endometrium is known as

cleavage.

morulation.

implantation.

capacitation.

the acrosome reaction.

Back

implantation.

FLASHCARD QUESTION

Front

The outer layer of the trophoblast that burrows into the lining of the uterus is the

embryoblast.

syncytiotrophoblast.

cytotrophoblast.

morula.

zona pellucida.

Back

syncytiotrophoblast.

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

54 questions

Analyzing Line Graphs & Tables

Quiz

•

4th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

Discover more resources for Science

11 questions

Recitation Week 2

Quiz

•

University