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miv72 [106K]
2 years ago
15

What would 2/3 of the Ozone layer being gone by 2065 mean for us?

Biology
1 answer:
monitta2 years ago
5 0

Answer:

D: all of the above

Explanation:

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In horses, black color (B) is dominant over chestnut color (b). Find the genotype and phenotype ratios of a cross between a hybr
valentina_108 [34]

Answer:

Phenotype: 2:2 or 1:1 / Genotype: 2:2 or 1:1 / 50% probability for chestnut color

Explanation:

If we put the two horses' genotypes in a Punnett square:

         <u> B          b</u>

<u>b</u>        Bb        bb

<u>b</u>        Bb        bb

The phenotype is describing the ending color of the offspring, where 2 of the 4 will be brown (Bb) and 2 of the 4 will be chestnut (bb), resulting in a 2:2 ratio. Genotype only refers to the alleles, where 2 of the 4 will be hybrid (Bb) and 2 of the 4 will be homozygous recessive (bb), again resulting in a 2:2 ratio. There is only a 50% chance that the offspring's phenotype will be chestnut color (bb) because the chestnut allele is recessive.

4 0
2 years ago
An electric motor converts electrical energy to potential energy. Please select the best answer from the choices provided T F
PSYCHO15rus [73]

Answer: The given statement is false.

Explanation: An electric motor converts electrical energy to mechanical energy and not potential energy.

Mechanical energy is the sum of kinetic and potential energy possessed by an object. It is the energy associated due to the movement and position of an object.

An electric motor works by the process of electromagnetic induction which happens when a voltage is induced by a changing magnetic field.


3 0
3 years ago
A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force. The resistance
romanna [79]
The answer is D. 3.33 A

In parallel connected devices, circuits are also placed parallel. It is known that in parallel circuits, total voltage is equal to the voltage of each device. 

So, we know that:
Device 1 - R1 = 12 ohms
Device 2 - R2 = 4 ohms
Total voltage - V = 40V = V1 = V2

If V = I × R, for the first device is V1 = I1/R1.
⇒ I1 = V1 ÷ R1
⇒ I1 = 40 V ÷ 12 ohms
⇒ I1 = 3,33 A
4 0
3 years ago
Imagine for a moment that you are a chromosome. Sometimes your life as a chromosome goes very smoothly. You’re copied, you go th
Ad libitum [116K]
This would entirely depend as to what does the word simple mean here. The definition of a simple life to a chromosome might not be the same to another chromosome. So when things don't follow the standard or expected processes, of course it wouldn't be the usual thing. That moment would leave an impression, a mark, on the life of the chromosome. But then, that would not be the case for long since it would be the new process starting from that moment or it would just revert to the usual way. Crossing over and mutations are kind of fun and at the same time boring, sometimes even sad. Of course, you need to leave those friends that you have made and then go to another stranger's lands and repeat the process all over again. What makes it fun though are the interactions that happen when making new friends. A lot of exchanges happen and it is all a give and take kind of relationship. Mutations, on the other hand, are kind of scary since you become somewhat deviant from the rest. You catch attention, sometimes questioned by the authorities during cross-overs and so on. The nice ring to it is that it inspires others to mutate, too, which is kind of fulfilling and satisfying knowing that you were the reason for their change.
5 0
2 years ago
Are there any element or molecule that oxygen reacts violently to
Bezzdna [24]
Water will violently react to the alkali. All the alkali metals react directly with oxygen; lithium and sodium form monoxides, Li2O and Na2O, and the heavier alkali metals form superoxides, MO2.
4 0
3 years ago
Read 2 more answers
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