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zheka24 [161]
2 years ago
7

A plant seedling bends toward sunlight because _____.

Biology
1 answer:
olga2289 [7]2 years ago
3 0

Answer:

Light is sn important element in the growth of a plant.

Explanation:

Light is an important factor influencing plant growth. It is a common observation that plants grow towards light. Charles Darwin and his son Francis Darwin first observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism). After a series of experiments, it was concluded that the tip of coleoptile was the site of transmittable influence that caused the bending of the entire coleoptile due to more growth on the dark side. That transmittable influence is now thought to be the phytohormone called auxin.

END of the answer.

Dear learner I can further assist with your homework should need be and I am available on plus one six one nine five five eight two one four zero.

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What are some properties of carbon? Please help
lilavasa [31]

Answer:

Properties Of Carbon :

Explanation:

Carbon:

Symbol: C

Electronic Configuration: 2 , 4

Valency : 4 (Tetra-valency)

Occurrence in nature →Earth's crust → 0.02% in the form of minerals like carbonates, coal, petroleum.

In atmosphere -0.03% in carbon dioxide is ( gaseous form)

Properties of carbon:

  1. Carbon forms Covalent is bonding and Covalent compounds wwhich do not conduct electricity.
  2. Carbon has three  allotropes i.e Diamond, Graphite and Fullerenes.
  3. In diamond carbon atoms bonded together in tetrahedral lattice arrangement.
  4. In graphite carbon atoms are bonded together in sheets of hexagonal lattice.
  5. In Fullerenes ccarbon atoms are bonded together in spherical, tubular, or ellipsoidal forms.
  6. Carbon plays a major role in organic compounds.
  7. Carbon is a Tetravalency. (valency :4)
  8. So that  it is easily share the electrons so that  it gives a possibility of large number of compounds. Carbon compounds are also called as organic compounds. Carbon compounds are also called organic compounds.
3 0
3 years ago
17. A diagram of the electromagnetic spectrum is shown.
Nata [24]

Answer:

B

Explanation:

4 0
3 years ago
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If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in
den301095 [7]

Complete question:

Phenotype               Genotype         Number of Individuals

Long-tailed                     TT                               260

Long-tailed                      Tt                                160

Short-tailed                      tt                                 80

If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in frequency of T in the next generation

Answer:

The expected change in allelic T frequencies probably changes from 0.6 to 0.57 in the following generation.  

Explanation:

Due to technical problems, you will find the complete question, answer and explanation in the attached files.

Download pdf
7 0
3 years ago
Which statement best describes the components of nucleic acids?
german

Answer:

Which statement best describes the components of nucleic acids?

They are made up of nitrogenous bases, sugars, and phosphates.

Explanation:

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Homeostasis is the ability of an organism to maintain a relatively stable internal environment. How would an organism's homeosta
Mama L [17]
Enzymes actually catalyses the chemical reaction so as function as catalyst.
It is used to speed up the chemical reaction.
C.<span>Without enzymes, chemical reactions would not occur quickly enough to sustain life ,is the correct answer.</span>
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