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Novay_Z [31]
3 years ago
7

According to Moh's hardness scale, your fingernail would be rated as 2.5. Juan and Carol are trying to identify an unknown miner

al. Carol can scratch the mineral sample with her fingernail. Juan and Carol know the mineral MUST be one of these four choices. Based on the scratch test, the mineral is
Biology
2 answers:
Elan Coil [88]3 years ago
5 0
I think it's B., calcite.

Not sure though.

Hope this helps, 
-Tiara
zysi [14]3 years ago
3 0

<u>I think the answer might be B. Calcite because it says it is at 2.5, it can't be gypsum because it's at 2 and when you round 2.5 it's closer to 3 than 2. So it will be B. </u>

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Blank layers of blank make up the cell membrane
sattari [20]

Answer:

Two layers of Lipids make up the cell membrane

Explanation:

The inner and outer phospholipid layers

3 0
1 year ago
There is a population where the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively. Allele 1 has a selection coe
Lorico [155]

Answer:

0.8

Explanation:

There is a population where the frequencies of allele 1 and allele 2 are 0.7 and 0.3, respectively

Let's use GG to represent allele 1

Let's use gg to represent allele 2

So we can equally say that;

GG = p = 0.7

gg = q  = 0.3   ( from Hardy-Weinberg Equilibrium)

So, given that the selection coefficient = 0.2

We known that the cross between GG and gg will definitely results to (GG,Gg and gg)

Then the fitness of these genes can be represented as:

1 - s, 1 and 1 - t respectively.

Thus. the allele 1's genotype fitness can be determined as

= 1 - s    ( where s is the selection coefficient)

= 1 - 0.2

= 0.8

6 0
3 years ago
Read 2 more answers
(PLEASE ANSWER ASAP, WILL MARK BRAINLIEST)
noname [10]

The answers include the following:

  • Arrow F represents transpiration.
  • Matter is conserved through the process in which carbon from carbon dioxide leaves and enters into the atmosphere.
  • This process is a recycling of carbon in the carbon cycle because it involves it travelling the atmosphere into organisms in the Earth in a repeated manner.

<h3>What is Carbon cycle?</h3>

This refers to the  biogeochemical cycle in which carbon is  reused through different types of mechanisms and actions.

This process involves carbon travelling the atmosphere into organisms in the earth in a repeated fashion through methods such as respiration, transpiration etc which is how recycling works.

This is therefore the reason why it can be regarded as the process which involves matter and conservation and recycling.

Read more about Carbon cycle here brainly.com/question/12005308

#SPJ1

7 0
1 year ago
_is used to help substances enter or exit the cell membrane
ValentinkaMS [17]

Answer:idk

Explanation:idc

3 0
3 years ago
How do you think a period of cold spring will affect the rabbit population
Rus_ich [418]

Explanation:

Cold springs can affect the reproduction of rabbits as the rabbit's main priority is to survive before adding more to its family as they would already be struggling to keep itself warm. Yet alone a newborn rabbit which doesn't have any fur yet.

Also, cold springs could affect the amount of food that grows so the competition for food is more harsh so more rabbits are likely to die of starvation.

Though I'm not sure what your temperature range of a cold spring is so I might be giving extreme answers.

4 0
3 years ago
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