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2 years ago

Podaj 2 funkcje zmysłu węchu u czlowieka

Biology

2 answers:

d1i1m1o1n [39]2 years ago

8 0

Answer:

Zmysł węchu pozwala dostrzec i rozróżnić zapachy. Na podstawie emocji wywoływanych przez różne zapachy klasyfikuje się je jako pozytywne, negatywne lub neutralne. Receptory zapachu to receptory chemiczne i telereceptory. Odpowiednimi bodźcami są cząsteczki zapachu rozproszone w powietrzu

Explanation:

tatiyna2 years ago

6 0

Answer:

nice

Explanation:

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_____ produces a clink or sonorous sound

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A sharp, ringing sound made by the collision of sonorous (especially metallic) bodies.

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Air pressure is ___________, when lung volume is___________.

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3 years ago

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What is pollination? Identify three ways pollen can be transferred. How is cross-pollination different

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The transfer of pollen to a stigma, ovule, flower, or plant to allow fertilization. It can be transferred by things that feed from what has pollen. Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

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2 years ago

When a living organism dies, it stops taking in new carbon. Thus, as the radioactive carbon-14 decays, the ratio of carbon-12 to

Alexxandr [17]

Answer: The fossil is 11459 years old.

Explanation:

Half-life of carbon-14 = 5700 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{5700\text{years}}$

$k=1.21\times 10^{-4}\text{years}^{-1}$

Now we have to calculate the age of the sample:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{years}^{-1}
t = age of sample = ?
a = let initial amount of the reactant = 100 g
x = amount decayed = 75 g
a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get
[tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}$

$t=11459years$

The fossil is 11459 years old.

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2 years ago