Biology

How much blood do i have

well i always have a light period and i figure its becuz im petite so i dont have enough blood to dispose of cuz then i would die so ya im 13 years old im 411 and i weigh 83-85 pounds so how much bloo

Few biology question? mono/dicot

1) What conducting tissue is near the epidermis in monocot stems? How about dicot stems?-Dicot stems the phloem is closest to the epidermis in young plants.As they get older and become woody the epide

Facts about animal cells

Facts about animal cells please, kthxbai-- No cell wall -Change shape if they have to -Eukaryote -Have a plasma membrane which is selectively permeable and can -Contain organelles - one nucleus with

Eye colour? Mix of parents'

My dad has blue eyes with pale blue in them and my mother has green eyes (a form of brown) with almost dark golden dots in them and a brown ring round the pupil. Im not sure about my grandparents eyes

A question about photosynthesis and thylakoids

Okay so the thylakoid stacks have chlorophyll on their surface right so are the sugars produced in the thylakoids? also how do the sugars get into the stroma? and if the sugars are produced in the thy

What is species, population, community and niches

This is biology question , anyone please help me! explain to me briefly. Thank you.-Species = a group of organisms that is capable of breeding and producing offspring. Population = all the organisms

Do young amoebas get into trouble because they lack structure in their lives

hardy-har-har-har lol-I dont think so..

What is the difference between anaerobic and aerobic respiration

Aerobic respiration is respiration in the presence of oxygen, and anaerobic respiration is when no oxygen is present. In aerobic respiration, carbon dioxide is produced. In anaerobic respiration, lac

Do the free ribosomes do the same thing as the ones on the endoplasmic reticullum

or do they have different functions? Also a cell does export protein right? but why? and where does the protein go?-Hi again!And essentially yes.Ribosomes all take mRNA and use it to TRANSCRIBE it i

Those who know med/bio, do you agree with this

We have no souls, only neurotranmitters. What we feel, our thoughts, our actions, our motivation... are all just chemical reaction in our brains. Theres no mystical souls in us that look like gas-li

If mutations do not occur from now on, would evolution still occur

The definition of evolution is the change in allele frequencies in a population over time. Stopping mutation would prevent new alleles from being formed but natural selection would still act on all ex

Does every cell in our body have a nucleus

also. are ribosomes, mitochondria, endoplasmic reticullum, gogli complex, microfilaments, micro tubules, lysosomes, peroxisomes present in every cell in our body? I think yes and that they differ only

What does selection coefficient represent

It measures the relative fitness of a phenotype. It is a theoretical value used to determine the survival of a gene in population genetics. It is symbolised by the letter s and is represented a number

Are chromosomes used in asexual reproduction

why dont plants have chromosomess?? how do plants reproduce? they germinate right? so is that asexual reproduction? also mitosis is asexual and meiosis is sexual right? but meiosis-2 is exactly lik

Incest: why do the kids end up with some type of deformity

Yes. I know incest is wrong, but, why do the children end up deformed? I know it has to do with the DNA being too similar but what exactly happens-Now incest does not automatically mean deformity and