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amm1812
2 years ago
12

11. Damaged seeds would ________ on top of water.

Biology
1 answer:
mafiozo [28]2 years ago
6 0

Answer:

11. Float

12. Bacteria

13. Polymer.

14. Hydrogen.

15. Water.

16. Climatic.

17. Prokaryotic.

18. Length.

19. Large.

20. Frequency.

Explanation:

11. Damaged seeds would float on top of water. This is because they are typically empty and as such lacking in any form of nutrient.

12. Cholera is caused by bacteria. This bacteria is scientifically called Vibrio cholerae.

13. Like synthetic fibre, plastic is also a polymer.

14. Metals react wih acids to produce hydrogen gas.

15. The Fire produced by oil cannot be controlled by water.

16. Migratory birds fly to far away places because of climatic changes.

17. Cell without well organised nucleus are called prokaryotic cells.

18. Time period of a pendulum depends on its length. Thus, the time period of a pendulum is directly proportional to its length i.e as its length increases, the time period also increase.

19. The size of pupil becomes larger when you see in dim light.

20. Shrillness of a sound is determined by the frequency of vibration.​ A shrill sound refers to a type of sound that is typically sharp, high pitched and as such has higher frequency.

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Postsynapyic neuron

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In tissue from the intestinal epithelium of a frog, the following proportions of cells were found at each stage of the cell cycl
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Interphase 0.90 = 18 Hours

Prophase 0.04 = 48 Minutes

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6 0
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Cell structures that plant and animal cells don't share are _____.
liubo4ka [24]

Answer:

a cell wall (because a plant cell is less rigid than an animal cell)

- a large central vacuole (where plant cells store water)

- chloroplasts (which plants use to carry out photosynthesis)

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8 0
3 years ago
Females of many insect species, including honeybee queens, can store gametes shed by their mating partners in _______. A. their
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In the spermatheca, females of many insect species, including honeybee queens, can store gametes secreted by their sex partners.

<h3>What is Spermatheca ?</h3>

The female insect's spermatheca is an ectodermal structure that receives, stores, and releases sperm for egg fertilization. According to the species, spermathecae differ in size and shape.

  • They often come from the median oviduct, which is located close or on the genital chamber. A secretory duct called the ductus seminalis connects the spermathecal sac, also known as the receptaculum seminis, to the genital chamber, where the sperm are released.
  • The number of spermathecas varies among taxa, however the majority of insects only have one. Depending on the species of insect, the spermatheca has different morphologies. The spermatheca is composed of the spermathecal gland, duct, and reservoir. Both of these fluids feed the sperm. Both the spermathecal glands and the male accessory glands secrete substances that feed the sperm.

So lastly we can say that, t females of many insect species, including honeybee queens, can store gametes shed by their mating partners in - the spermatheca.

To know more about Spermatheca please click here : brainly.com/question/9748392

#SPJ4

3 0
1 year ago
With regard to earthquakes, what are measuring devises with lasers used for?
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Hi! I believe that the lasers are used for measuring the earthquakes movement and how much worse it is going to be with the next earthquake. But they would also measure how much force there was and how much more or less there will be. :) Hope this helps. :)

7 0
2 years ago
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