ehd123

Hydrostatic equilibrium in our Sun is the balance between?

Hydrostatic equilibrium in our Sun is the balance between?

1) convection and radiation.
2) pressure and radiation.
3) convection and gravitation.
4) gravitation and pressure.
5) radiation and gravitation.

ASJ   2949   1 Reply

bolbol

Cone snails produce large amounts of venom in their venom sacs.Which of the following is true?

Cone snails produce large amounts of venom in their venom sacs.Which of the following is true?

Cone snails produce large amounts of venom in their venom sacs. The cells that produce this protein line the venom sac. Which of the following is most likely true regarding these cells?
A)They have a large central vacuole.
B)The have more mitochondri

fisher 2012   939   1 Reply

bolbol

Phylogenetic analysis with 16S and CYTB

Phylogenetic analysis with 16S and CYTB

So, I'm in my master's degree in animal biology and I want to create a phylogenetic tree for my taxon, but so far I've only done it using Cytb, is there a way to compare cytb with 16S, ND4 or NT3, and unite all of this into a phylogene

Anonymous   166   1 Reply

doubleu

Questions about running MEGA phylogenetic analysis with mitrochondrial transcription factor TCF7L2

Questions about running MEGA phylogenetic analysis with mitrochondrial transcription factor TCF7L2

hey everyone,

I was bored today so for shits and giggles i compiled the same TCF7L2 sequence for 4 animals off of the NIH ( African Elephant, Emu, Saltwater croc and anole lizard) to compile into one FASTA file and then run through a phylo

ChimpMilk   277   3 Replies

bio_man

Identify each stage of the life cycle (Chapter 13, Question 5, Part C)

Identify each stage of the life cycle (Chapter 13, Question 5, Part C)

Help please,

I was working on my hw and got stuck, hoping somebody could give me a hand, thanks.

Instructions:
In the life cycle of an organism, meiosis is paired with the process of fertilization. Under

12

vpechenyy   262280   16 Replies

Rstate

Breeding and rearing of Geocarcinus spp. in a captive setting

Breeding and rearing of Geocarcinus spp. in a captive setting

I’ve been putting research into the natural life cycles of 'moon crabs'. I have just acquired a young pair. I am not absolutely positive of the species, but it is the genus Gecarcinus, most likely Gecarcinus quadratus.

They’ll be

PoetaCorvi   178   1 Reply

Shay619

How do you stain Ectomycorrizae?

How do you stain Ectomycorrizae?

Hey all,

I am doing research on fungal relationships in the north east united states. In order to properly continue my research, I am attempting to collect soil samples and stain ectomycorrhizae.
My questions are:
What is the mos

itzhak   706   1 Reply

bolbol

Transformation of flowers in chrysanthemum

Transformation of flowers in chrysanthemum

Is a disc flower (the one on the inside, smaller, with pistils and stamens) able to transform to a ray flower (the one on the outside, bigger, with only pistils) in any chrysanthemum species? Perhaps under some conditions?

chrysanthemum   176   1 Reply

Flynn

Scientists are trying to engineer non-legume crop plants, such as corn, wheat, and rice, to form sym

Scientists are trying to engineer non-legume crop plants, such as corn, wheat, and rice, to form sym

I cant figure this one out...

Part C - Root nodule formation in legumes

Scientists are trying to engineer non-legume crop plants, such as corn, wheat, and rice, to form symbiotic relationships similar to the legume-Rhizobium rel

tq786   10782   4 Replies

Miranda Miles

Genetic lineage of grass.

Genetic lineage of grass.

I was wondering what the likelihood is of the grass in my yard today has direct genetic lines to the grass 50 years ago?

CarbonRobot   318   1 Reply

bio_man

Methods of hunting

Methods of hunting

In vertebrates, with the exception of primates, hunting strategies using constructed traps (e.g., such as spider webs) are not common. What might this be due to?  Analyze the existing types of constructed traps in the animal kingdom. Suggest a r

lillil   331   1 Reply

Anonymous

Identifying vascular bundles

Identifying vascular bundles

Can anyone identify the vascular bundle (xylem and phloem) in this image? The sample is probably too thick so I can't see that clearly so I'm not sure about that. Thanks.

Anonymous   464   1 Reply

Anonymous

how does the life cycle of seedless vascular plants differ from they life cycle of a bryophyte, like moss?

how does the life cycle of seedless vascular plants differ from they life cycle of a bryophyte, like moss?

how does the life cycle of seedless vascular plants differ from they life cycle of a bryophyte, like moss?

microman   2131   1 Reply

bolbol

In fluid mechanics, what are the definitions of static pressure and hydrostatic pressure?

In fluid mechanics, what are the definitions of static pressure and hydrostatic pressure?

What are the primary differences between the two?

julesarth   1058   1 Reply

bolbol

Camel - Ship of the desert.

Camel - Ship of the desert.

https://en.wikipedia.org/wiki/Camelidae

I would like to know whether the Camels seen in zoos of all countries would be able to walk in the Sahara desert and other deserts where the temperature is very high?

Po

prashantakerkar   505   4 Replies

Anonymous

Shark teeth quality?

Shark teeth quality?

Do the quality of a shark's teeth decrease with each new one, or are they pretty much identical  from youth to old age?

CarbonRobot   286   5 Replies

bio_man

Why do seals seem to just float in deep water so much?

Why do seals seem to just float in deep water so much?

Hi.

A Facebook post from a local triggered me this morning to ask this.

He posted a video of a seal just playing around in the water.

I see them doing this sort of thing a lot around here. Central Coast, NSW, Austr

Naithi O_Rea   250   4 Replies

Naithi O_Rea

An elevation of lymphocytes is ____________. (Fill in the blank)

An elevation of lymphocytes is ____________. (Fill in the blank)

An elevation of lymphocytes is ____________.
 
  Fill in the blank(s) with correct word

Anonymous   267   1 Reply

Anonymous

Is it a mutation in these mushrooms or something else?

Is it a mutation in these mushrooms or something else?

Big mushroom is conjoined with small ones. What kind of biological process is this?

Anonymous   214   1 Reply

bio_man

Which of the following levels of biodiversity are declining?

Which of the following levels of biodiversity are declining?

Hi
The cells after the metaphase I am with the equal distribution of the chromosomes; the statement now asks that chromosomes arrangement in the cell is by the given eight variations. You have to sort the cell accordingly in the meiosis II distr

churaton makmee   222   1 Reply

bio_man

Cockatiel DNA

Cockatiel DNA

I have a student in class that would like to do some type of research on cockatiel DNA.  He currently owns 4 mating pairs.  I am far from a bird expert so I was reaching out to see if anyone had ideas of something he could study.
Thank

Marion B   278   3 Replies

bio_man

I need help identifying a certain creature that popped up in a jar with sea water (details below)

I need help identifying a certain creature that popped up in a jar with sea water (details below)

Hi, a few weeks ago my dad put a bunch of thing he found at sea in a glass jar with sand and water and closed it up. From what we know was in there were two brittle starfishes, and yesterday my brother had the not so brilliant idea of throwing chunks

helpwhatisthis   364   1 Reply

bio_man

How stem orientation of a rose influences bud stimulation

How stem orientation of a rose influences bud stimulation

Hi,

It is well known that climbing roses with their stems orientated more horizontally stimulates more lateral bud growth as opposed to a vertical stem that only flowers at the end. Tried to find some stuff online and think it may be to do

Bisquit   407   1 Reply

duddy

If a mutation appears in one individual that changes one base in a DNA sequence to another base...

If a mutation appears in one individual that changes one base in a DNA sequence to another base...

 If a mutation appears in one individual that changes one base in a DNA sequence to another base, and the population is evolving by genetic drift, over time that mutation will:
 Always take over and displace the old sequence. Disappear half the

12...2829

maryam89   28404   399 Replies

HCP4021

Can dolphins drink coffee?

Can dolphins drink coffee?

If they can , is the effect similar to humans?

Thank you!

alikim   590   1 Reply

studymite

Where is the cortex located in the following picture?

Where is the cortex located in the following picture?

Sadah_17   397   1 Reply

bio_man

Where in the following picture does the vast majority of water enter roots?

Where in the following picture does the vast majority of water enter roots?

Sadah_17   396   1 Reply

bio_man

Biology homework help

Biology homework help

[url=https://biology-forums.com/index.php?action=g

Sadah_17   372   3 Replies

bio_man

In the summer, in which direction does the flow of water happen in the following picture?

In the summer, in which direction does the flow of water happen in the following picture?

In the summer, in which direction does the flow of water

Sadah_17   382   2 Replies

duddy

In the following picture, where is the endodermis located?

In the following picture, where is the endodermis located?

In the following picture, where is the endodermis locate

Sadah_17   377   1 Reply

bio_man

Biology help

Biology help

options are
cortex, endodermis, epidermis, p

Sadah_17   327   1 Reply

bio_man

Which direction will the water flow in the following figure?

Which direction will the water flow in the following figure?

Which direction will the water flow in the following figur

Sadah_17   312   1 Reply

bio_man

The following picture depicts a model of a root, along with water transport towards the xylem.

The following picture depicts a model of a root, along with water transport towards the xylem.

options are
apoplastic transport
symplastic

Sadah_17   326   1 Reply

bio_man

The following picture depicts a model of a root, along with water transport towards the xylem.

The following picture depicts a model of a root, along with water transport towards the xylem.

options are
cortex
epidermis
xylem

Sadah_17   337   1 Reply

bio_man

What is the most likely pollinator of the flower in the following picture?

What is the most likely pollinator of the flower in the following picture?

What is the most likely pollinator of the flower in the f

Sadah_17   299   1 Reply

bio_man

What is the most likely pollinator of the flowers in following picture?

What is the most likely pollinator of the flowers in following picture?

What is the most likely pollinator of the flowers in foll

Sadah_17   305   1 Reply

bio_man

What is the most likely pollinator of the flower in the following picture?

What is the most likely pollinator of the flower in the following picture?

What is the most likely pollinator of the flower in the f

Sadah_17   283   1 Reply

bio_man

What is the most likely pollinator of the flowers in the following picture? Hint: the corolla ...

What is the most likely pollinator of the flowers in the following picture? Hint: the corolla ...

What is the most likely pollinator of the flowers in the

Sadah_17   293   1 Reply

bio_man

What flower organ is depicted with an arrow?

What flower organ is depicted with an arrow?

What flower organ is depicted with an arrow?
O Sepal

Sadah_17   268   1 Reply

bio_man

Given the nature of the most likely pollinator of the flowers in the following picture, which of ...

Given the nature of the most likely pollinator of the flowers in the following picture, which of ...

Given the nature of the most likely pollinator of the flo

Sadah_17   253   1 Reply

bio_man