Proteins and a properly working digestive system
Answer:
The answer is A.
Explanation:
In the case of cyanide poisining which prevents the oxygen from being used by the body, the brain is one of the first organs that gets effected because it uses around 20% of the total oxygen intake of the body and the other systems and organs mostly depend on the brain to function properly so the brain runs out of oxygen before the other parts of the body.
I hope this answer helps.
Answer:
1) The beaks are different because they each had different purposes, such as the types of seeds the birds eat.
2) Natural selection is that organisms that are better suited for they're environment survive and reproduce.
3) Variation is the differences of one organism's difference from another of the same organism.
4) Biased off the fossils scientist may see the changes that happen over time to them and thanks to the ability of seeing how old a fossil is we may better order them.
5) Mimicry is when one organism "mimics" another, whereas camouflage is when one organism changes to look likes it surroundings.
6) Adaptation is a change or the process of change of which an organism or species becomes better suited to its environment.
7) An endangered species is a species that is very low is sightings or near extinction.
8) A herbivore has a plant biased diet whereas a carnivore has a meat, or other living organism biased diet.
9) Flowers use coloration to use a color to attract birds, and insects to reproduce and pollenate.
10) Charles Darwin was a explorer and scientist that came up with the theory of evolution, which states that through natural selection a species may change, give rise to new species, with a common ancestor.
Explanation:
Wow this took a while.
Your answer would be D, Systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.
These two circulations are part of the circulatory system, with the pulmonary circulation taking deoxygenated blood to the lungs and returning it oxygenated with the oxygen we breathe in, then that oxygenated blood going around the body delivering that oxygen and coming back deoxygenated.
Hope this helped!
Verry cold and icy because it is cold up there...and down there
