Q1. The answer is 1.
It can be calculated using the equation:
(1/2)ⁿ = x
x - decimal amount remaining,
n - a number of half-lives.
x = 50% = 50/100 = 0.5
n = ?
(1/2)ⁿ = 0.5
log((1/2)ⁿ) = log(0.5)
n * log(1/2) = log(0.5)
n * log(0.5) = log(0.5)
n = log(0.5)/log(0.5)
n = 1
Q10. The answer is 2.
It can be calculated using the equation:
(1/2)ⁿ = x
x - decimal amount remaining,
n - a number of half-lives.
Rhyolite #2 has 25% of the parent H remaining:
x = 25% = 25/100 = 0.25
n = ?
(1/2)ⁿ = 0.25
log((1/2)ⁿ) = log(0.25)
n * log(1/2) = log(0.25)
n * log(0.5) = log(0.25)
n = log(0.25)/log(0.5)
n = -0.602 / - 0.301
n = 2
Q3. The answer is 100 million years.
A number of half-lives (n) is a quotient of total time elapsed (t) and length of half-life (H):
n = t/H
n = 1
t = ?
H = 100 000 000 years
n = t/H
t = n * H
t = 1 * 100 000 000 years
t = 100 000 000 years<span>
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Answer:
This question lacks options; the options are:
A) a lemur.
B) a tarsier.
C) a bird.
D) a new world monkey.
E) more than one of these.
The answer is A). Lemur
Explanation:
The animal being described in this question is a mammal that belongs to the order, PRIMATE because of its features which include forward-facing eyes, nails instead of claws etc. The genus of the animal being described is LEMUR.
Lemurs are a group of primate animals that possess a moist nose, a feature that makes them belong to the STEPSIRRHINES group of primates. Lemurs possess forward facing eyes, nails on their toes and fingers and also like every other mammal, care for their young ones.
Cellular reproduction is the answer
Answer:
B. Inherited traits carry the instructions for individual genes.
