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Biology

Parent Category: Science
Biology is a branch of science that studies the nature of life from the smallest parts of living things to the largest plants and animals. Ask and answer questions about the living world and its wonderful inhabitants in this category!
Yes. All the natural sources of food can be contaminated withresidues of pesticides etc., for example, you can find traces ofDDT and PCBs in the body fat of penguins. Also, most foods containwater, which is a chemical, and foods themselves are organicchemicals, which means that they contain carbon,...
The heart circulates both oxygenated and deoxygenated blood butalong different paths - the human heart has 4 chambers which enableit to do this.
1)Penetration, 2) Biosynthesis>(Early phase - Middle phase -Late phase ) 3)Gene regulation biochemistry, 4)Maturation andlysis, 5) Productive cycle.
the best light for plants is sun light , put your plants on the window stil or plant outside
Causes of variation is random mutation. Random mutationsconstantly occur in the genomes of organisms; these mutationscreate genetic variation. If all living things were same, we willall use up one type of food as our nutrient source and eventuallywe will run out of food to consume.. making less...
Thank you for your question. My answer is "No." However, an injury to the cervical spinal nerves or those evenlower, like an injury to the axillary (armpit) nerves or those inthe elbow region can cause the symptoms of a pinched nerve withpain in the wrist. Pain would be located at the nerve injury...
we can do this technique by a proper method.first we have to takethe cut part of a root stem n then grind it by machine n thenspread this solution on chromatographic paper ......when the paperbecomes dry we can see the transition of different colours...
Abdominal pain and loss of appetite are very unspecific symptoms.They can stem from pretty much any disorder in thegastroinstestinal tract, and even from disorders elsewhere in thebody. A common gastrointestinal infection by rota- or noroviruses("stomach flu") for example can feel bad but might cure...
They have small holes in their shells.
No, the condition is caused by deficiency of the parathyroid gland.
Generally, the source of energy for cell functions is ATP orAdenosine triphosphate.
internal respiration is the exchange ofgases between the body cells and blood..
The left overs left behind in the soil as irrigated water forfarming evaporates, which makes the soil water have a higherosmotic content for the plants. A higher concentration of solutesmeans there is a lower amount of water. Therefore, more water willrun/diffuse out of the plants cells right into...
Depends on the location of the forest. Gray Wolf: The iconic predator of the American North. Wolfpopulations have sprung back in recent years after decades ofdecline. Jaguar: The largest feline in the Americas, the jaguar once rangesinto the Southern US. Now its range is from Mexico to Peru. ...
Most of the chromatographic techniques are meant to characterizeand study the molecules in different states.
Transparent, biconvex intraocular tissue that helps bring rays oflight to a focus on the retina.
A room and a cell are alike in that they are isolated parts of acollection. The rooms have walls which separate them from the otherrooms of the house, and the cells have cell membranes (and cellwalls for plant cells) which separate them from the other cells inthe tissue. However, you can take the...
The part of the grain that remains after being refined is theendosperm.
Reidi Seahorses, Coral beauty angelfish, Fire Coral and many more types of coral, algea and more
Yes, there is a nuclear membrane in interphase. It dissolves inprophase and then reforms in telophase.
The population of Asia is approximately 4 billion people. Thecontinent takes up nearly 10 percent of the land on the entireplanet.
chromosomey. i think that is its scientific name.
I can only speculate but I wouldn't imagine global warming wouldhave had much of an impact on global shark populations to date.Water takes a lot of energy to heat up and changes to globaloceanic temperatures are less noticable than atmospherictemperatures. Sharks are cold-blooded so changes in the...
The function of cartilage in the bronchus is to hold the softtissue open so that air may pass through. The cartilage in thebronchus are C-shaped rings.
When completely digested they become amino acids.
Farmers had drought conditions, land was over farmed. Almost dailydust storms and heat.
The skeletal system has a few important jobs. One is to keep usfrom becoming blobs of human tissue similar to jellyfish butwithout the water. The other is to protect vital organs such as ourbrains, heart, lungs, liver. But they have another role which is tocreate a form on which everything else can...
Mitochondria and chloroplasts likely evolved from engulfedprokaryotes that once lived as independent organisms. At somepoint, a eukaryotic cell engulfed an aerobic prokaryote, which thenformed an endosymbiotic relationship with the host eukaryote,gradually developing into a mitochondrion. Eukaryotic...
From the mother, that is why they may need to eat more protein, tohelp the baby grow. :)
Cytokines, chemokines, and general hormones are the cell messagingmechanisms in higher organisms. Transcription factors and geneexpression products play big roles, too.
They both have mitchondria, phospholipid by-layer, use ribosomes, nucleus, endoplasmic reticulum.
Smooth ER aren't covered in ribosomes, but rough ER are. ER are like transport tubes that go through the cell.
RH factor in blood types stands for "Rhesus Factor". Blood testswere performed on Rhesus monkeys and the Rh+ and Rh- factors wereisolated. An antigen found in the red blood cells of most people:those who have Rh factor are said to be Rh positive (Rh+), whilethose who do not are Rh negative (Rh-)....
Because it is a pharmacological medication, FDA regulation callsfor distilled water just like any other liquid medication apharmacy would mix behind the counter.
Greenhouse gases, climate and temperature can all be affected byenergy conservation.
extensor digitorum, extensor indicis, extensor digiti minimi,flexor digitorum superficialis, and the flexor digitorum profundus.There are also extrinsic muscles that work only in the thumb; theseinclude the flexor pollicis longus, extensor pollicis longus,extensor pollicis brevis, and adbuctor...
This question is based on a misconception. Abiotic factors are nonliving parts of an environment, such as temperature and rock type.Biotic factors are living things, which includes decomposers,
As biologists learned more \nabout the natural world, they realized that Linnaeus’s two kingdoms, \nAnimalia and Plantae, did not adequately represent the full diversity \nof life. As a result, the original two kingdoms have today become six \nkingdoms, with two of those groups used just for...
bacteria is not a plant or an animal because it is single-celled. plants and animals have many cells.
You have to go to a surgeon
There is 1 skull in the body last time I checked.
The 5' cap attached to the mRNA ensures the mRNA's stability while it undergoes translation.
It is here that messages from the eyes are interpreted.
No, but the microbes which cause the diseases can spread onpeople's hands, so good hygiene is an important element of diseasecontrol.
Cranial nerves that have a motor function tend to be bilaterally innervated . In other words, the rightaccessory nerve (XI) receives input from both the right and theleft motor cortex. The same goes for the left accessory nerve. This is a handy advantage in strokes, since upper motor neuronelesions...
Phenotype is the observable characteristics shown by an organism itis affected by both genotype (alleles and genes) and environment.If ,for example, a boy inherited white-colour skin from both hismother and father but he spent a lot of time in the sun then he'sskin will get darker. Or if his parents...
Should be herbivores since carnivores are higher in the food chain.
Initiation involves binding of mRNA and initiator aminoacyl-tRNA to small subunit, followed by binding of large subunit. Initiation codon in mRNA (AUG)
Supplies of food, places and sources we can get food from.
Kalahari Desert & Richtersveld
This could be down to a lack of fruit consumption. This happened toa cousin of mine and the doctor said more fruit and veg should beeaten. If you're really worried go to the doctor. Hope this helped!
Yes! Lets take an example, we are exercising and our breathingsystem is working, other systems will also work like muscularsystem will work, it will help the body to move around. Nervoussystem also function, it'll help you to run by giving sensoryimpulses to foot, and to heart to pump blood. So...
It turns to water and sometimes methane gas is released.
Some archaebacteria are photosynthetic , meaning they maketheir own food; however, rather than use the pigment chlorophylllike green plants and algae, they employ a light-sensitive purpleprotein called bacteriorhodopsin. Other archaea live in placeswhere no sunlight penetrates, such as deep-sea...
In desert plants the root hairs are more sensitive for waterabsorption and can absorb water at times from the moist air presentin the porous soil. The root hairs of tropical rain forest plantsabsorb only capillary water present in the soil.
Clostridium tetani , the bacterial pathogen that causes tetanus (lock jaw) is arguably armed but is definitely dangerous. The toxin excreted by this bacterium causes serious illness and death in humans, but it is arguable whether that toxin can be considered an intentional weapon, since it serves...
A sharp tap just below the knee.
well it depends on what kind of animal your talking about.
This means that playing is a crucial stage in the brain developmentof any young animal. It is a chance to act out the situations that they will have toface in real life, but in a safe, controlled way.
There are one directional valves in the veins and in the heart.
ya it may be possible that by the using role scoper results in soilerosion
This is actually 3.0 musculoskeletal and 76 gr of musculoskeletal
Anaerobic exercise is an exerciseintense enough to trigger lactic acid formation. It is used by athletes in non-endurance sports to promote strength, speed and power and by body builders to build muscle mass.
the membrane of the tympanum or ear-drum.
Red and blue wavelengths have the greatest impact on plant growth.green is least effective.
The first two reports (1990 and 1995) of the International Panel on Climate Change (IPCC) confirmed that the world is definitely warming and this warming is being caused by human activity.
Small agranulocytes that have a dense nucleus and very little cytoplasm are called Lymphocytes.
Storage location of DNA, and are used to pass on genetic traits.
because of yo mama looser chupaley :o
The sun gives off a few billion wats per second. If solar power went mainstream, then the world would be set on energy for the next billion years until the sun explodes.
Inez Fung is a professor of Atmospheric Science at UC Berkeleyand the Co-Director of Berkeley Institute of the Environment . Dr Brenda Ekwurzel works on the national climate program at theUnion of Concerned Scientists (UCS). . Marine ecologist and climate expert Corina Brussaard is part ofa new...
The purpose of cytoplasm is to keep all organelles in place.
Yes, colossal squids do squirt black ink when attacked.
Vicodin has the potential to alter the brain's neurotransmitters.
Superregnum: Eukaryota Regnum: Plantae Divisio: Magnoliophyta Classis: Magnoliopsida Ordo: Asterales Familia: Asteraceae Subfamilia: Asteroideae Tribus: Madieae Genus: Eriophyllum Species: Eriophyllum latilobum wooley sunflorer . Superregnum: Eukaryota Regnum: Plantae ...
In 1665 the first biological cells were documented by Robert Hooke.He looked at thin slices of cork under a microscope.
It is a herbivore. It eats mainly seeds, leaves, mangrove shoots, and unripe fruit.
Chloroplasts are membrane bound organelles in plant cells thatcontain chlorophyll, which absorbs red light and uses it tohydrolyse water to oxygen gas and hydrogen ions. These hydrogenions pass through the electron transport chain, which is a sequenceof membrane proteins which use the energy of the...
There is no system as the names grew up gradually.
1. Financial Income - There is money in recycling.In the level of the individual, one of the benefits of recycling isfinancial income. There are a lot of things lying around the housethat we no longer want or need that might just end up in a dumpsitesomewhere, that we can recycle and earn money...