ehd123

Which of the follow is true about Darwin?

Which of the follow is true about Darwin?

1. None of these answers are true.
2. two of these answers are true.
3. He was the first true geneticist
4. He believed an individual could develop certain traits that it could pass on to its offspring.
5.His theory of evoluti

Nonameeee   94   1 Reply

bio_man

What increases the number of alleles in a species (not just a population)?

What increases the number of alleles in a species (not just a population)?

1. Natural selection
2. Bottleneck effect
3. Founder effect
4. mutation
5. Gene flow


I'm torn between mutation and natural selection.. .

Nonameeee   133   1 Reply

bio_man

A weird question presumably about invisibility or translucence its badly worded.

A weird question presumably about invisibility or translucence its badly worded.

Tardigrada wasn't correct, nor was Gastrotricha. What on earth is this asking me...

[img width=350 height=127]https://biology-forums.com/gallery/42/967094_1

Nonameeee   243   3 Replies

bio_man

As a general rule, the nervous system coordinates ________ while the endocrine system regulates ...

As a general rule, the nervous system coordinates ________ while the endocrine system regulates ...

As a general rule, the nervous system coordinates ________ while the endocrine system regulates ________.
 a. nervous activity, endometrial activity
  b. rapid responses, long lasting activities
  c. nail-biting, immune responses

Blueyasser   168   2 Replies

Song Dong

These four hallmark characteristics of chordates develop from which structures?

These four hallmark characteristics of chordates develop from which structures?

Where have I gone wrong here? I cannot for the life of me figure out which one I got wrong. I only got one wrong I think.

[img width=350 height=282]https://biol

Nonameeee   246   3 Replies

bio_man

If the interior of the thylakoid were not a sealed compartment ________.

If the interior of the thylakoid were not a sealed compartment ________.

If the interior of the thylakoid were not a sealed compartment ________.
A) There would be no location for the electron transport chain
B) Light would not be able to reach the photosystems
C) Water could not be split
D) The proton gradient could

borteleto   240   3 Replies

Jake Conti

Which of the following is a symptom of pleiotropic genetic disease (multiple gene effects) caused ...

Which of the following is a symptom of pleiotropic genetic disease (multiple gene effects) caused ...

[html]Which of the following is a symptom of pleiotropic genetic disease (multiple gene effects) caused directly by bad breeding programs?

▸ persistent mucus in stool

▸ reflux of esophageal contents

▸ moderate to severe joint damage

▸ temporary v

rachelarnold   111   2 Replies

Song Dong

The ancestry of birds lies among the _______________. a.tetanurans b.tyranno

The ancestry of birds lies among the _______________. a.tetanurans b.tyranno

The ancestry of birds lies among the _______________.
   a.   tetanurans
   b.   tyrannosaurids
   c.   ceratosaurs
   d.   dilophosaurs

Lauren1   602   8 Replies

Song Dong

Which of these phyla CAN have an asymmetrical body plan?

Which of these phyla CAN have an asymmetrical body plan?

Mollusca, Arthropoda, Cnidaria, Rotifera, Platyhelminthes, or Porifera?



This isn't for a grade, but I am asking you guys because I suspect this to be a very tricky question. My knowledge tells me Mollusca.... because spong

Nonameeee   117   3 Replies

bio_man

Why do florists and horticulturists often cut stems while they're holding a plant underwater?

Why do florists and horticulturists often cut stems while they're holding a plant underwater?

Why do florists and horticulturists often cut stems while they're holding a plant underwater?
A) to avoid transpiration
B) to prevent dormancy
C) to disrupt apical dominance
D) to avoid formation of an embolism

purpleberry   340   3 Replies

Sergio Hernandez1

The most extensively sampled record of dinosaur extinction is in ____________.

The most extensively sampled record of dinosaur extinction is in ____________.

The most extensively sampled record of dinosaur extinction is in ____________.
   a.   Mongolia
   b.   eastern Montana
c.   northwestern New Mexico
d.   eastern Wyoming

Lauren1   857   4 Replies

FaithGibb

What modified plant part would include a white potato as an example?

What modified plant part would include a white potato as an example?

What modified plant part would include a white potato as an example?
A) stem
B) root
C) leaf
D) flower

chezmoi   211   3 Replies

yeet bus

How can I make a terrarium that can be atmospherically and pressure controlled for growing animals

How can I make a terrarium that can be atmospherically and pressure controlled for growing animals

So, basically I want to try and simulate prehistoric growth conditions. I need to be able to control the oxygen and carbon dioxide levels, along with increasing the atmospheric pressure from sea level to 2x. Does anybody know how to design a terrariu

C. Bruce   94   1 Reply

bio_man

Which plant is best adapted to prevent an embolism in their xylem tubes?

Which plant is best adapted to prevent an embolism in their xylem tubes?

Which plant is best adapted to prevent an embolism in their xylem tubes?
A) a banana plant in a very warm climate
B) a spruce tree with narrow, tapering tracheids
C) a maple tree with wide, perforated vessel elements
D) a cattail

purpleberry   458   7 Replies

kennedymalone03

A characteristic that is shared by snakes and birds is ______.

A characteristic that is shared by snakes and birds is ______.

A characteristic that is shared by snakes and birds is ______.
A) being ectothermic
B) the presence of only a single ovary in females
C) the amniotic egg
D) being endothermic

mikael   4350   6 Replies

Omar Refaie

Evidence for group behavior in sauropods is provided by _____________. a.track

Evidence for group behavior in sauropods is provided by _____________. a.track

Evidence for group behavior in sauropods is provided by _____________.
   a.   trackways
   b.   mass death assemblages
   c.   nests of eggs
   d.   a and b

Lauren1   840   4 Replies

Art Agent Aneko

As shown here, what is a bean/bean pod actually?

As shown here, what is a bean/bean pod actually?

As shown here, what is a bean/bean pod actually?
A) stem
B) fruit
C) axillary bud
D) petiole

purpleberry   549   4 Replies

Dammy Emego

Suppose you laid a seedling on its side so that the root was parallel to the ground. Immediately ...

Suppose you laid a seedling on its side so that the root was parallel to the ground. Immediately ...

Suppose you laid a seedling on its side so that the root was parallel to the ground. Immediately after the change in position, where in the root cells (position A, B, or C in the figure above) would you find the amyloplasts? The answer should be one

ceybe   633   3 Replies

Aaryan Menon

The mechanism by which bumblebees and certain moths generate preflight heat i

The mechanism by which bumblebees and certain moths generate preflight heat i

 
The mechanism by which bumblebees and certain moths generate preflight heat in thoracic muscles involves   
A)
 
a metabolic futile cycle in carbohydrate metabolism   
B)
 
the simultaneous contr

Jermain_   418   3 Replies

Krissy Marie

Predict the photosynthetic pathway that might be used by a saguaro cactus?

Predict the photosynthetic pathway that might be used by a saguaro cactus?

A. C4 pathway
B. CAM
C. C3 pathway
D. Nitrogen fixation

ffmedic1043   1640   3 Replies

Chandler Powell

The poorly formed limb joints of hatchling Maiasaura suggest they were _________

The poorly formed limb joints of hatchling Maiasaura suggest they were _________

The poorly formed limb joints of hatchling Maiasaura suggest they were ________________.
   a.   endothermic
   b.   ectothermic
   c.   altricial
   d.   precocial

Lauren1   532   4 Replies

JD UwU

What are the advantages of producing gametes within a flower?

What are the advantages of producing gametes within a flower?

 What are the advantages of producing gametes within a flower?

colleen   818   2 Replies

Cooper Gluck

On a cladogram, a dog is more closely related to a _________ . a.cat than a f

On a cladogram, a dog is more closely related to a _________ . a.cat than a f

On a cladogram, a dog is more closely related to a  _________ .
   a.   cat than a frog
   b.   frog than a cat
   c.   trout than a horse
   d.   trout than a whale

Lauren1   907   4 Replies

Cpierce5011

Ceratopsid frills functioned _____________. a.in thermoregulation b.as the si

Ceratopsid frills functioned _____________. a.in thermoregulation b.as the si

Ceratopsid frills functioned _____________.
   a.   in thermoregulation
b.   as the sites of attachment of jaw-moving muscles
c.   in display
d.   all of the above

Lauren1   774   4 Replies

FaithGibb

Ramon is observing slides of transverse sections of roots of unlabeled plants.?

Ramon is observing slides of transverse sections of roots of unlabeled plants.?

Ramon is observing slides of transverse sections of roots of unlabeled plants. One of the slides shows a vascular bundle that is arranged as a ring of xylem and phloem about the center of the root. Another slide shows a central bundle of xylem and ph

rivera5454   3337   2 Replies

destiny grant

Which of the following ensures that the product does not rise above the maximum limit (for ash, ...

Which of the following ensures that the product does not rise above the maximum limit (for ash, ...

[html]Which of the following ensures that the product does not rise above the maximum limit (for ash, fiber, water) or fall below the minimum limit (protein, fat, energy) as per the requirement?

▸ guaranteed analysis

▸ ingredients list

▸ adequacy

Kira214   121   2 Replies

Thelma Sabb

Fish Eyes. Any experts on fish eyes?

Fish Eyes. Any experts on fish eyes?

Are there any ichthyologists that know the anatomy of zebrafish eyes? I would like to know how well they see.

CarbonRobot   138   2 Replies

CarbonRobot

Why is bone such a useful structural material for tetrapods on land? Calcified cartilage is lighter ...

Why is bone such a useful structural material for tetrapods on land? Calcified cartilage is lighter ...

Why is bone such a useful structural material for tetrapods on land? Calcified cartilage is lighter than bone. Isn't that an advantage for a terrestrial vertebrate?
 
  What will be an ideal response?

chubi1993   252   2 Replies

Kelvin T

The preferred form of stored fuel for migratory animals is

The preferred form of stored fuel for migratory animals is

 
The preferred form of stored fuel for migratory animals is   
A)
 
amino acids.   
B)
 
glycogen and other types of starch.   
C)
 
lipid.   
D)
 
protei

Jermain_   657   3 Replies

weewoopolice

Which of the following best describes the condition of a twig if the auxin produced by its apical ...

Which of the following best describes the condition of a twig if the auxin produced by its apical ...

Which of the following best describes the condition of a twig if the auxin produced by its apical meristem is conveyed equally down all sides?
A) It will elongate.
B) It will branch near its tip.
C) It will produce a flower.
D) It will bend to on

kaylie.yardley   268   3 Replies

Zachary Smith

The most famous diplodocid is ________________. a.Barosaurus b.Supersaurus

The most famous diplodocid is ________________. a.Barosaurus b.Supersaurus

The most famous diplodocid is ________________.
   a.   Barosaurus
   b.   Supersaurus
   c.   Apatosaurus
   d.   Brachiosaurus

Lauren1   963   4 Replies

Hdhehe

Why do we call Paleozoic chondrichthyans such as Cladoselache sharks, and why isn't that ...

Why do we call Paleozoic chondrichthyans such as Cladoselache sharks, and why isn't that ...

Why do we call Paleozoic chondrichthyans such as Cladoselache sharks, and why isn't that terminology strictly correct?
 
  What will be an ideal response?

NATTYICE325   145   2 Replies

Vada Sayers

Two clades of tetanurans are recognized, the __________ and ___________. a.cera

Two clades of tetanurans are recognized, the __________ and ___________. a.cera

Two clades of tetanurans are recognized, the __________ and ___________.
a.   ceratosaurs, coelurosaurs
b.   carnosaurs, dilophosaurs
c.   dromaeosaurs, elmisaurs
d.   carnosaurs, coelurosaurs

Lauren1   620   4 Replies

FaithGibb

Ladybug mating

Ladybug mating

Today i saw red and black ladybug are mating,what kind of ladybug will be hatched from that? I read that their mating time is in spring and autmn ..but i didnt find any info for this ,so if someone  know anwser i will be thankfull ...greetings f

DKitty   114   2 Replies

Dkitty

Two great expeditions of the first half of the 20th Century collected dinosaurs

Two great expeditions of the first half of the 20th Century collected dinosaurs

Two great expeditions of the first half of the 20th Century collected dinosaurs in ________ and ________.
   a.   Europe, South America
   b.   China, Russia
   c.   Tanzania, Mongolia
   d.   Madagascar, Australia

Lauren1   812   4 Replies

Arin Edwards

How many moles of ATP are required to produce one mole of urea?

How many moles of ATP are required to produce one mole of urea?

 
How many moles of ATP are required to produce one mole of urea?   
A)
 
1   
B)
 
5   
C)
 
10   
D)
 
50   

Jermain_   473   3 Replies

Riya Thapa

It takes _________ years or more for most bones to fossilize. a.1 million b.

It takes _________ years or more for most bones to fossilize. a.1 million b.

It takes _________ years or more for most bones to fossilize.
   a.   1 million
   b.   ten thousand
   c.   five
   d.   10 million

Lauren1   644   4 Replies

Arin Edwards

Vasectomy is female sterilization.

Vasectomy is female sterilization.

Vasectomy is female sterilization.


▸ true

▸ false

rachelarnold   133   1 Reply

momoneymoprobz

The slow block to polyspermy occurs when polar bodies discharge their contents, thereby altering the ...

The slow block to polyspermy occurs when polar bodies discharge their contents, thereby altering the ...

[html]The slow block to polyspermy occurs when polar bodies discharge their contents, thereby a

Deeznutz21   120   1 Reply

Ayeayeaye0

Which of the following is one function of the developing follicle?

Which of the following is one function of the developing follicle?

[html]Which of the following is one function of the developing follicle?


▸

kiaraancheta   129   1 Reply

djaser