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3 years ago

FIRST PERSON TO ANSWER THIS CORRECTLY WILL BE MARKED BRAINLIEST THANKED AND 5 STARS WILL BE GIVEN!!!!!!

Biology

2 answers:

GarryVolchara [31]3 years ago

6 0

The anwser is B :)))))))))

zysi [14]3 years ago

5 0

Hi! Convection and gravity are the forces that influence the movement of Earth’s plates. Hope this helps:)

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All of the above' ' ' ' ] l]p[][p][

SIZIF [17.4K]

Answer:

ummmmmm ok

Explanation:

6 0

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.

4 0

2 years ago

A key point in Darwin’s explanation of evolution is that Group of answer choices1. the biological structures most likely inherit

zaharov [31]

3. any trait that confers even a small increase in the probability that its possessor will survive and reproduce will be strongly favored and will spread through the population.

Explanation:

Natural selection is a nonrandom process by which biological traits become more or less common in a population as a function of the differential reproduction of their bearers of differences in the rate of survival.
Natural selection can act on any heritable phenotypic trait and operate among any entities that reproduce, show inheritance of their characteristics from one generation to the next, and vary in fitness.
Natural selection is the machine that drives evolution. It also explains adaptation.

8 0

3 years ago

In your own words. How would you describe diabetes to a friend who asked you about it

leonid [27]

Answer:

Diabetes is a condition in which your blood glucose, often known as blood sugar, is abnormally high. Your main source of energy is blood glucose, which comes from the food you eat. Insulin, a hormone produced by the pancreas, aids glucose absorption into cells for use as energy.

Hope this helps!

5 0

2 years ago

Read 2 more answers

What are intraspecific and interspecific ecological competitions

Mashcka [7]

First of all - ecological interactions in the ecosystem indicates how species interact with each other and species interactions in the system include:
- competition,
- predation,
- camouflage
- mimicry

In ecological competitions:
- intraspecific competitions are an interaction where individual members of the same species compete for the same resources
- interspecific competitions are about which individual members of a different species compete for the same resources.

In case of any additional stuff, send me a comment.

7 0

2 years ago