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Lyrx [107]
3 years ago
6

In angiosperms, pollen grains are

Biology
2 answers:
o-na [289]3 years ago
7 0
C. Hapliod, and are made when haploid spores undergo mitosis
Vladimir [108]3 years ago
4 0

Answer:

The correct answer would be c. haploid and are made when haploid spores undergo mitosis.

Angiosperms are flowering plants.

Pollen is formed in the anther of the flowering plant. Pollen is haploid in nature as they are formed from the meiotic division of microspore mother cell. This process is termed as microsporogenesis.

Later, these microspores develop into the microgametes by the process termed as microgametogenesis. Under this process, the microspore undergoes mitotic division and produce two haploid nuclei. One nucleus is termed as the vegetative nucleus and another is termed as the generative cell.

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What products are made from the process of photosynthesis
MakcuM [25]

Answer: glucose and oxygen

Explanation:

The formula for photosynthesis is:

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Anything on the right of the arrow is the products so, it is glucose and oxygen.

Hope this helps :)

5 0
2 years ago
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In ________ conditioning, the unconditioned stimulus unconditionally elicits a reaction. For example, a bit of black pepper blow
kipiarov [429]

Answer:

The answer is: Classical Conditioning.

Explanation:

  • According to the theory of Classical Conditioning, an Unconditional Stimulus can be defined as such a stimulus that is capable of triggering a response spontaneously and naturally without the requirement of a previous learning or knowledge about the stimulus.
  • A Neutral stimulus can be defined as such a stimulus which is responsible for drawing or focusing the attention of a person to a particular event.
  • A Conditional Stimulus can be defined as such a stimulus which is generated due to the repeated integration of an Unconditional stimulus to a Neutral stimulus. The repeated integration eventually results in the generation of a conditioned response.
  • In the given example, a bit of black pepper blown into the eyes for the first time is an example of unconditional stimulus. This stimulus initiates a spontaneous or unconditional response, that is, blinking of eyes.
  • But, when this unconditional stimulus gets integrated to the neutral stimulus (irritation in the eyes draws the attention of the person) repeatedly, it can result in the generation of a Conditioned Response (blinking of eyes whenever any foreign object gets into it).

7 0
3 years ago
Which of these would form first during the development of a complex multicellular organism, such as an animal? A) cell B) organ
Goshia [24]
It should be A) cell since everything is made of cell in a living body.
5 0
3 years ago
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What's the most common rock on earth?<br><br>Plz help, thx
nlexa [21]
Calcite is the most common rock

8 0
2 years ago
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He human eye is poorly suited to night vision, suffering impairments in __________.
REY [17]

The human eye is grief in damage of in-depth perception, color recognition, and peripheral vision. Judging speed and distance based on visual evidence is also more difficult in the dark.  In addition, the darkness of night, and even the dimness of dusk and dawn.  

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3 years ago
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