General Biology

Protein digestion begins in the _____.

Protein digestion begins in the _____.

Protein digestion begins in the _____.
 
  a. mouth c. small intestine
  b. stomach d. large intestine

Question 2

A digestive system functions in _____.
 
  a. secr

Preet   53   2 Replies

Preet

Bile has a role in _____ digestion and absorption.

Bile has a role in _____ digestion and absorption.

Bile has a role in _____ digestion and absorption.
 
  a. carbohydrate c. protein
  b. fat d. amino acid

Question 2

Most nutrients are absorbed in the _____.
 
  a.

supernumerary   57   3 Replies

Nax101

Bacteria in the _____ make essential vitamins.

Bacteria in the _____ make essential vitamins.

Bacteria in the _____ make essential vitamins.
 
  a. stomach c. large intestine
  b. small intestine d. esophagus

Question 2

Monosaccharides and amino acids absorbed from the

Eye_opener   44   1 Reply

rtstudent

Most water that enters the gut is absorbed across the lining of the _____.

Most water that enters the gut is absorbed across the lining of the _____.

Most water that enters the gut is absorbed across the lining of the _____.
 
  a. stomach c. large intestine
  b. small intestine d. esophagus

Question 2

The pH is lowest in the

blahfuk5   41   1 Reply

Anyy

Blood that flows through capillaries in the small intestine flows next through vessels in the _____. ...

Blood that flows through capillaries in the small intestine flows next through vessels in the _____. ...

Blood that flows through capillaries in the small intestine flows next through vessels in the _____.
 
  a. stomach c. pancreas
  b. heart d. liver

Question 2

_____ are inorga

BurningAshe   64   3 Replies

qurat.ain46

_____ is(are) a good source of omega-3 fatty acids that can reduce the risk of heart disease.

_____ is(are) a good source of omega-3 fatty acids that can reduce the risk of heart disease.

_____ is(are) a good source of omega-3 fatty acids that can reduce the risk of heart disease.
 
  a. Oatmeal c. Fish
  b. Legumes d. Corn syrup

Question 2

Tiny filaments called _

teilour   53   2 Replies

teilour

Which of the following vitamins is fat soluble?

Which of the following vitamins is fat soluble?

Which of the following vitamins is fat soluble?
 
  a. vitamin A c. vitamin C
  b. vitamin B6 d. all of these

Question 2

What is the most common cause of anorexia-related deat

Lost4ever   43   1 Reply

oliverb1

Breakdown of _____ produces ammonia. (Multiple Choice)

Breakdown of _____ produces ammonia. (Multiple Choice)

Breakdown of _____ produces ammonia.
 
  a. carbohydrates c. proteins
  b. nucleic acids d. nucleic acids and proteins

Question 2

A freshwater fish gains most of its water by __

nmar   70   2 Replies

nmar

Bowman's capsule, the start of the tubular part of a nephron, is located in the _____.

Bowman's capsule, the start of the tubular part of a nephron, is located in the _____.

Bowman's capsule, the start of the tubular part of a nephron, is located in the _____.
 
  a. renal cortex c. renal pelvis
  b. renal medulla d. renal artery

Question 2

Insect

skyleton   38   2 Replies

skyleton

Blood pressure forces water and small solutes out of blood and into nephrons during _____.

Blood pressure forces water and small solutes out of blood and into nephrons during _____.

Blood pressure forces water and small solutes out of blood and into nephrons during _____.
 
  a. glomerular filtration
  b. tubular reabsorption
  c. tubular secretion
  d. both glomerular filtration and tubular secretion[b

diamonddiva007   49   2 Replies

diamonddiva007

Which of the following is secreted into kidney tubules?

Which of the following is secreted into kidney tubules?

Which of the following is secreted into kidney tubules?
 
  a. H+ c. water
  b. glucose d. protein

Question 2

Kidneys return most of the water and small solutes back to blood by

dotyc92   62   2 Replies

dotyc92

_____ can keep people with kidney failure alive, but it cannot cure them. (Fill in the blank)

_____ can keep people with kidney failure alive, but it cannot cure them. (Fill in the blank)

_____ can keep people with kidney failure alive, but it cannot cure them.
 
  Fill in the blank(s) with correct word

Question 2

Antidiuretic hormone makes distal tubules and collec

bunnies   34   3 Replies

Tokelo

Most land animals have _____ fertilization.

Most land animals have _____ fertilization.

Most land animals have _____ fertilization.
 
  a. internal b. external

Question 2

Which of the following is an endotherm?
 
  a. a shark c. a monkey
  b. a frog d.

D_o_m   49   3 Replies

bcspears

Testosterone is secreted by the _____.

Testosterone is secreted by the _____.

Testosterone is secreted by the _____.
 
  a. testes c. prostate gland
  b. hypothalamus d. pituitary gland

Question 2

An animal that makes eggs and sperm is a _____.
 

qpitt19777   48   2 Replies

qpitt19777

The corpus luteum develops from _____.

The corpus luteum develops from _____.

The corpus luteum develops from _____.
 
  a. a polar body c. a secondary oocyte
  b. follicle cells d. spermatogonia

Question 2

During a menstrual cycle, a midcycle surge of

Preet   53   3 Replies

Steven

A homeotic gene regulates _____. (Multiple Choice)

A homeotic gene regulates _____. (Multiple Choice)

A homeotic gene regulates _____.
 
  a. where body parts form c. secondary sexual traits
  b. milk production d. sperm formation

Question 2

Sexually transmitted bacteria cause

Pandabearsrlyfe   44   2 Replies

Pandabearsrlyfe

What are the three tissues of a vertebrate gastrula? What will be an ideal ...

What are the three tissues of a vertebrate gastrula? What will be an ideal ...

What are the three tissues of a vertebrate gastrula?
 
  What will be an ideal response?

Question 2

True or false. All blastomeres have the same cytoplasmic components and express

cb2015   29   1 Reply

transfer

Genes affect the behavior of individuals by _____.

Genes affect the behavior of individuals by _____.

Genes affect the behavior of individuals by _____.
 
  a. influencing the development of nervous systems
  b. affecting how individuals respond to hormones
  c. determining which stimuli can be detected
  d. all of these

Hank   30   2 Replies

Hank

A behavior is defined as adaptive if it _____.

A behavior is defined as adaptive if it _____.

A behavior is defined as adaptive if it _____.
 
  a. varies among individuals of a population
  b. occurs without prior learning
  c. increases an individual's reproductive success
  d. is widespread across a species
[br

Johnnyvic   29   1 Reply

Michael876

A _____ is a chemical that conveys information between individuals of the same species.

A _____ is a chemical that conveys information between individuals of the same species.

A _____ is a chemical that conveys information between individuals of the same species.
 
  a. pheromone
  b. neurotransmitter
  c. hormone
  d. all of these

Question 2
[

mayismqz   27   3 Replies

beunique90

List two possible benefits of living in a group. What will be an ideal ...

List two possible benefits of living in a group. What will be an ideal ...

List two possible benefits of living in a group.
 
  What will be an ideal response?

Question 2

In what group of animals are monogamy and cooperative care of the young by two paren

Lost4ever   20   3 Replies

yd

Eusocial insects _____. (Multiple Choice)

Eusocial insects _____. (Multiple Choice)

Eusocial insects _____.
 
  a. live in extended family groups
  b. include termites, honeybees, and ants
  c. show a reproductive division of labor
  d. all of these

Question 2

bector215   33   1 Reply

grodriguezz

Most commonly, individuals of a population show a ________ distribution through their habitat. ...

Most commonly, individuals of a population show a ________ distribution through their habitat. ...

Most commonly, individuals of a population show a ________ distribution through their habitat.
 
  Fill in the blank(s) with correct word

Question 2

Helping other individuals at a re

claudiawong05   49   3 Replies

merana.potros

Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 ...

Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 ...

Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 of them have marks. There are about ________ fish in this pond.
 
  Fill in the blank(s) with correct word

[fa]che

EmpressDina   40   3 Replies

houghtk2

For given species, the maximum rate of increase per individual under ideal conditions is its _____. ...

For given species, the maximum rate of increase per individual under ideal conditions is its _____. ...

For given species, the maximum rate of increase per individual under ideal conditions is its _____.
 
  a. biotic potential c. environmental resistance
  b. carrying capacity d. density control

fokkdsn   57   1 Reply

carelesslycool

A life history pattern for a population is a set of adaptive traits such as _____.

A life history pattern for a population is a set of adaptive traits such as _____.

A life history pattern for a population is a set of adaptive traits such as _____.
 
  a. logevity c. age at reproductive maturity
  b. fertility d. all of these

Question 2

____

RICHDANGER123   40   2 Replies

RICHDANGER123

Compared to the less developed countries, the highly developed ones have a higher _____.

Compared to the less developed countries, the highly developed ones have a higher _____.

Compared to the less developed countries, the highly developed ones have a higher _____.
 
  a. death rate c. total fertility rate
  b. birth rate d. resource consumption rate

Question 2[/

rolab97   47   2 Replies

rolab97

Species that usually colonize empty habitats are more likely to show traits that are favored by ...

Species that usually colonize empty habitats are more likely to show traits that are favored by ...

Species that usually colonize empty habitats are more likely to show traits that are favored by _____.
 
  a. r-selection b. K-selection

Question 2

An increase in infant mortality

dxcwgr   24   3 Replies

Mikestreff

The type of place where a species typically lives is called its _____.

The type of place where a species typically lives is called its _____.

The type of place where a species typically lives is called its _____.
 
  a. niche c. community
  b. habitat d. population

Question 2

All members of a cohort are the same _____.

Seven7Seven   46   1 Reply

mas0375

Lizards that eat flies they catch on the ground and birds that catch and eat flies in the air are ...

Lizards that eat flies they catch on the ground and birds that catch and eat flies in the air are ...

Lizards that eat flies they catch on the ground and birds that catch and eat flies in the air are engaged in _____ competition.
 
  a. exploitative d. interspecific
  b. interference e. both exploitative and interspecific
  c. in

jai   55   2 Replies

jai

A tick is a(n) _____.

A tick is a(n) _____.

A tick is a(n) _____.
 
  a. brood parasite c. endoparasite
  b. ectoparasite

Question 2

_____ can lead to resource partitioning.
 
  a. Mutualism c. Commensalism

m671   42   3 Replies

ddd856

________ species are the first to colonize a new habitat. (Fill in the blank)

________ species are the first to colonize a new habitat. (Fill in the blank)

________ species are the first to colonize a new habitat.
 
  Fill in the blank(s) with correct word

Question 2

By a currently favored hypothesis, species richness of a community is g

LesleyCher   40   3 Replies

Disney6

Species richness is greatest in communities _____.

Species richness is greatest in communities _____.

Species richness is greatest in communities _____.
 
  a. near the equator c. near the poles
  b. in temperate regions d. that recently formed

Question 2

Growth of a forest in an

rickyfa18   33   1 Reply

sosobon

Mammals are least likely to be _____.

Mammals are least likely to be _____.

Mammals are least likely to be _____.
 
  a. mutualists c. brood parasites
  b. commensal d. predators

Question 2

If you remove a species from a community, the population size of

chrystalhdz   49   2 Replies

chrystalhdz

In most ecosystems, the primary producers use energy from _____ to build organic compounds.

In most ecosystems, the primary producers use energy from _____ to build organic compounds.

In most ecosystems, the primary producers use energy from _____ to build organic compounds.
 
  a. inorganic chemicals c. heat
  b. sunlight d. lower trophic levels

Question 2

Her

dotyc92   48   1 Reply

michjfrg88

Organisms at the first trophic level _____.

Organisms at the first trophic level _____.

Organisms at the first trophic level _____.
 
  a. capture energy from a nonliving source
  b. are eaten by organisms at higher trophic levels
  c. are shown at the bottom of an energy pyramid
  d. all of these

[co

rylee19   71   3 Replies

barelysurving

A (n) _____ is an autotroph.

A (n) _____ is an autotroph.

A (n) _____ is an autotroph.
 
  a. primary producer c. detritivore
  b. herbivore d. top carnivore

Question 2

Primary productivity on land is affected by _____.
 
  a

reubank   45   2 Replies

reubank

Earth's largest carbon reservoir is ____.

Earth's largest carbon reservoir is ____.

Earth's largest carbon reservoir is ____.
 
  a. the atmosphere c. seawater
  b. sediments and rocks d. living organisms

Question 2

Most of earth's fresh water is _____.

lacieb23   71   1 Reply

lex2013

Greenhouse gases _____. (Multiple Choice)

Greenhouse gases _____. (Multiple Choice)

Greenhouse gases _____.
 
  a. help keep Earth's surface warm enough for life
  b. are released by natural and human activities
  c. are at higher levels than they were 100 years ago
  d. all of these

[color=#FBB11

tempuser   52   2 Replies

tempuser

Earth's larges phosphorus reservoir is _____.

Earth's larges phosphorus reservoir is _____.

Earth's larges phosphorus reservoir is _____.
 
  a. the atmosphere c. sediments and rocks
  b. bird droppings d. living organisms

Question 2

The _____ cycle is a sedimentary

pch123   38   3 Replies

bhinz