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Colt1911 [192]
3 years ago
5

In order to perform, a chemist needs an element that has similar properties to potassium (K) but has a lower atomic mass. which

element should the chemist select for the experiment?
A. Robidium (Rb)
B. Sodium(Na)
C. Magnesium(Mg)
D. Calcium(Ca)
Biology
2 answers:
Sergeeva-Olga [200]3 years ago
6 0
I think its c. magnesium Mg
Gnoma [55]3 years ago
6 0

Answer:c

Explanation:

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In a certain plant, tall stems (t) are dominant to short stems (t). a farmer crosses a short-stemmed plant with a heterozygous l
melisa1 [442]

The answers would be:

Genotype                Phenotype

     Tt                      Tall stemmed

     tt                       Short stemmed

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

<u />

<u>You can read on to see how this was done:</u>

Tall stems (T) are dominant to short stems (t).

First figure out the genotypes of the parents. We have a short-stemmed plant and a heterozygous long-stemmed plant cross.

For short stem to occur, you need 2 pairs of short alleles. So the first parent would have a genotype of tt.

Heterozygous long-stemmed means that the parent has one of each allele. So the genotype of the second parent would be, Tt.

Now we can make our Punnett Square.

tt x Tt

<u>       t        t  </u>

<u>T |  Tt  |   Tt</u>

<u>t  |   tt  |   tt</u>

Let's list down the genotypes and phenotypic results.

Genotype        no.         Phenotype

     Tt                 2           Tall stemmed

     tt                  2           Short stemmed

So from that we can answer the other questions:

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

8 0
3 years ago
Why do dinoflagellates thrive in bahia fosforescente
lukranit [14]
<h2>Dinoflagellates thrive in bahia fosforescente</h2>

Explanation:

  • Dinoflagellate, are one-celled aquatic organisms having two dissimilar flagella.
  • It has a characteristics of both plants and animals.
  • Most of the dinoflagellates are marine, but some live in freshwater habitats.
  • Bahia fosforescente is one of the phosphorescent bays where millions of glowing marine dwellers such as dinoflagellates cause the lake to glow a bright blue in night.
  • Dinoflagellates has the characteristics of Bioluminescence which they use it as a defense mechanism.
  • During night, due to the bioluminescence of dinoflagellates,water can have an appearance of sparkling light.
  • Dinoflagellates takes their nutrients from marine organisms, thus they grow or develop well in bahia fosforescente.
4 0
3 years ago
11. What is the speed of sound in water? 500 meters per second 1,000 meters per second 1,500 meters per second 100 meters per se
vladimir1956 [14]

The actually speed of sound in water is 1,498, which is closest to 1,500 meters per second.

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What are the scientific goals for the Mars Science Laboratory?
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Answer:

4

Explanation:

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What type of bonds connect the sugars to phosphates and the sugars to bases? Weak or strong?
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All the bonds are hydrogen bonds  and this bond is strong

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