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Mumz [18]
3 years ago
13

Which of the following groups of animals only uses internal fertilization?

Biology
1 answer:
irakobra [83]3 years ago
8 0
I think the correct answer from the choices listed above is the last option. It is the mammals the groups of animals that only uses internal fertilization. Internal fertilization<span> is the union of an egg cell with a sperm during sexual reproduction inside the body of a parent. Hope this answers the question. Have a nice day.</span>
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Where is dna found in eukaryotic cells? why is this important?
Arturiano [62]

Answer:

nucleus and we need dna so we can figure out people in our past

Explanation:

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2 years ago
When rocks are broken down by heat and pressure, chemically weathering has taken place
Andreas93 [3]
The answer is false, chemical weathering occurs when rocks, minerals, etc are broken down by atmospheric or biologically produced chemicals.
5 0
3 years ago
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The table below summarizes Mendel’s results for the F2 generation. Mendel’s Results Plant height 787 tall 277 short Flower color
Gnom [1K]

Answer:

2001

Explanation:

This question showcases a table that displays Mendel's results (figures) when he crossed pea plants and observed different characters in the plant. Mendel worked with different phenotypic characteristics in the pea plant.

According to the table, the result were for seven characteristics including height, flower color, flower position, pod color, pod shape, seed color, seed shape. Based on the observation of the number of F2 offsprings that possessed dominant trait and recessive trait for each character, we will notice that it follows an approximate phenotypic ratio of 3:1

1. Plant height 787 tall 277 short (3:1)

2. Flower color 705 purple 224 white (3:1)

3. Flower position 651 middle of stem 207 end of stem (3:1)

4. Pod color 428 green 152 yellow (3:1)

5. Pod shape 882 inflated 299 constricted (3:1)

6. Seed color 6,022 yellow X green

7. Seed shape 5,474 smooth 1,850 wrinkled (3:1)

This 3 dominant : 1 recessive ratio is the ratio got in the F2 offsprings when he observed the seven characteristics in pea plants. Hence, the seed color will also follow the same 3:1 ratio

Therefore, 2001 is the result Mendel obtained in the F2 offsprings for the recessive trait of seed color characteristics in his experiment, which actually depicts the 3:1 ratio. Hence, X (green seed color) is 2001

8 0
2 years ago
Read 2 more answers
In drosophila, proper anteroposterior and dorsoventral development requires a separate set of maternal effect gene products accu
rosijanka [135]

It is true. In drosophila, distinct sets of maternal impact gene products must accumulate in the proper region of the embryo to ensure proper anteroposterior and dorsoventral development.

<h3>What makes Drosophila unique?</h3>

The use of Drosophila over vertebrate models has many technological advantages;

  • they are simple and affordable to culture in lab settings,
  • have a significantly shorter life cycle,
  • produce huge numbers of externally deposited embryos
  • may be genetically manipulated in a variety of ways.
<h3>Why is Drosophila referred to be the genetic Cinderella?</h3>
  • Drosophila, which means "dew loving," is derived from the Greek word drósos.
  • Fruit flies, or Drosophila melanogaster, are referred to as the genetic Cinderella.
  • This term was given to them because of their 12-day lifetime, ease of culture, and ability to produce numerous offspring from a single reproduction.

learn more about drosophila here

brainly.com/question/14458439

#SPJ4

4 0
1 year ago
After the egg is fertilized what type of cell division occurs
kotegsom [21]
I guess Mitosis.........
6 0
3 years ago
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