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iren2701 [21]
3 years ago
9

Define cell theory for class 9 plz answer

Biology
1 answer:
kirill115 [55]3 years ago
6 0

Answer:

A theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells.

Explanation:

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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

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4 0
1 year ago
Which global water rights issue does the tippy tap technology help solve?
DochEvi [55]

Answer: A

Explanation:

it’s a hands free device that prevents water being wasted

3 0
3 years ago
Read 2 more answers
Can someone please help me?​
Tamiku [17]

1.

a. deoxyribose sugar, phosphate, and nitrogen-containing base

b. deoxyribose sugar

c. cytosine

d. adenine, thymine, guanine. and cytosine

7 0
3 years ago
Please help I don’t understand this!!! I’ll mark you as brainliest if correct.
Anettt [7]

Answer:

Aa

Explanation:

In Punnett Square, you are bringing the letters on the top to the numbered squares, if that makes sense. It is to predict the genotype of offspring.

So square 1, on the left is A, and on the top is A, so it would be AA.

For square 2, on the left is a, and on the top is A, so it would be Aa.

For square 3, on the left is A, and on the top is A, so it is AA.

Square 4, your question, has a on the left, and A on the top, so it is Aa.

Hope it makes sense. You should probably watch a Punnett Square tutorial online or something for a full and more general explanation.

4 0
3 years ago
24) Adult behavior is often influenced by their family and cultural experiences during childhood. Julia is a young adult that gr
Butoxors [25]

Even with a good diet, a sedentary lifestyle can cause damage to our health, so to answer the question we need to understand that.....

<h3>Choose healthy habits</h3>

Nothing better than starting with an essential tip. So it's time to forget the bad habits that only bring harm and choose healthy habits.

It is well known that habits in general are part of 40% of our day. That's right! We spend almost half of our time doing daily chores without realizing it and with autopilot on.

So it's these established ideas that can become harmful in the long run. And our unconscious is responsible for them. With this, it is important to make healthy choices to replace old harmful habits.

With this information, we came to the conclusion that the habit of exercising brings health benefits, even when the person has a good diet.

Learn more about Health in brainly.com/question/13179079?referrer=searchResults

5 0
2 years ago
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