If an organism adapts to a new environment what may happen to their skeleton
What is a possible outcome of a mistake in meiosis?
List and briefly describe in your own words the four main points of Darwin's theory?
Variations( individuals of a species are not identical), traits are passed from generation to generation, struggle for existence (more offspring are born than can survive) and survival for the fittest(only the survivors of the competition for resources will reproduce).
Variations occur within members of a population. These variations arise by chance and from within the individual. Through sexual reproduction these characteristics are transmitted to successive offspring. The offspring by far outnumber the parental generation but only a few survive to adulthood and are able to reproduce. This is due to environment pressures such as predation, diseases and competition for food and breeding sites. In the struggle for existence individuals with advantageous variations are well adapted to the environment.
The most common kind of pretexting in cyberspace is ________.
The most common kind of pretexting in cyberspace is Phishing.
Phishing is an online fraud technique used by criminals in the computer world to steal bank passwords and other personal information, using it fraudulently. It is a kind of pretext widely used in cyberspace.
The phrase phishing came from the English word "fishing". That is, criminals use this technique to "fish" the data from victims who "bite the hook" thrown by the phisher ("fisherman"), a name given to those who perform a phishing.
A phishing attempt can happen through fake websites or emails, which mimic the image of a famous and trusted company in order to get victims' attention. Typically, the content of websites or phishing emails promise extravagant promotions to the Internet or ask them to update their bank details, avoiding account cancellation, for example.
A psychologist would say that she enjoys the game because it acts as a __________.
How do sand dunes form ?
its c the wind carries the sand until it runs into an obstacle.
sand dunes form from wind
Hemoglobin is a protein in red blood cells that binds to oxygen. Which physiological changes that naturally occur in the body reduce hemoglobin's affinity for oxygen?
Hemoglobin is a biological macromolecule of protein contained in red blood cells, which efficiently carries oxygen from the lungs to other tissues of the body. Hemoglobin helps in the transportation of carbon dioxide and hydrogen ions back to the lungs.
Hemoglobin consists of four non-organic subunits, each with a cofactor called a haem group that has an iron atom center. The iron is the main component that actually binds to oxygen, thus each hemoglobin molecule is able to carry four molecules of O2. Cooperation among the four subunits of the hemoglobin molecule is necessary for the efficient transportation of O2. The four subunits of hemoglobin actually bind to oxygen cooperatively, the binding of oxygen to one site of the four subunits will increase the likelihood of the remaining sites to bind with oxygen as well.
The binding of the first oxygen allows the second, third, and fourth oxygen molecules to subsequently bind with increasing ease. Haemoglobin easily bonds with CO2 relatively faster than O2. When the carbon dioxide is in direct equilibrium with the concentration of protons in the blood, increasing blood carbon dioxide levels leads to a decrease in pH, which ultimately leads to a decrease in affinity for oxygen by hemoglobin.
-) Some substances are absorbed into the capillaries by active uptake.
0 Explain why active uptake is sometimes necessary
Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.
Which climate zone recieves the highest isolation? a. temperate
because the angle of incidence is large