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4 years ago

8

What structure, found in plant cells, uses the process of exocytosis to remove water?A. nucleusB. contractile vacuoleC. cell wal

l

1 answer:

Alecsey [184]4 years ago

8 0

B contractile vacuole

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FILL IN THE BLANKS

Licemer1 [7]

Answer:

The energy is_lost__as_planst__

and__animals_use the energy for life

processes and it transforms

into___

Explanation:

6 0

3 years ago

Loss of habitat has decreased the population and number of alleles of Canadian lynx. A few survivors migrated to other forests a

tatyana61 [14]

The Correct Answer is A
Reasoning - Since the ani. had went into a different ecosystem and habitat amd mateded it had offspring with the originally some genetic along with some little different variations. In turn this is call Founders Effect

6 0

4 years ago

Read 2 more answers

In trout, Gene A affects body color and yellow color (allele a) is recessive to red. In a particular river system you find that

hjlf

Answer:

The frequency of the dominant A allele is 0,4 or 40%.

Explanation:

In this population, we have:

- "A" red body color Dominant

- "a" yellow doy color Recessive

So, individuals AA and Aa will be red and trouts aa will be yellow. In this case, 64% of the fish are red, so they are AA or Aa.

If the population is in Hardy-Weinberg equilibrium the following will be true:

$p^{2}+2pq+q^{2}=1$

Where:

$p^{2}=$ frequency of AA

$2pq=$ frequency of Aa

$q^{2}=$ frequency of aa

It is known that 64% of population is red, in other words:

$p^{2}+2pq=0,64$

Or AA+Aa=0,64

So, it is possible to find the value of $q^{2}$ (aa):

$p^{2}+2pq+q^{2}=1$

$(0,64)+q^{2}=1$

$q^{2}=1-0,64$ $q^{2}=0,36$

Now, there are two alleles in this population, therefore their frequencies will be:

$p+q=1$

So, from $q^{2}$ it is possible to find q and p:

$q=\sqrt{q^{2} }$

$q=\sqrt{0,36}$

$q=0,6$

And:

$p+q=1\\p=1-q\\p=1-0,6\\p=0,4$

7 0

3 years ago

There are seven possible processes. how many processes do you think your rock material will go through?

Vika [28.1K]

Answer:

crystallization, metamorphism, and erosion and sedimentation

8 0

2 years ago

Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected? (3 points)

natali 33 [55]

Answer:

The options are

it was too old to be used in modern times

it was too complicated for scientists to understand

scientists found new evidence to prove it invalid

scientists discovered a shorter theory to replace it

The answer is scientists found new evidence to prove it invalid

Steady State Theory of origin of the universe has been rejected due to new findings about how the universe was formed through carefully observing it which faulted past theories. This validates the option which states that scientists found new evidence to prove it invalid.

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3 years ago