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Nezavi [6.7K]
3 years ago
10

P.Science Co-PC

Biology
1 answer:
bulgar [2K]3 years ago
3 0
Digestive and excretory
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Water is warmed by the sun and evaporates because
Nady [450]

Answer:

cuz fam when liquids reach above boilin point they melt

Explanation:

7 0
3 years ago
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Complete the table below by filling in the spaces with the correct stage of meiosis—Beginning, Meiosis I, Meiosis II, End. Event
Furkat [3]

Answer:

1. Meiosis 1.

2. Meiosis 2.

3. End.

4A. The chromosome theory of inheritance states that chromosomes are the main carriers of the genetic factors responsible for inheritance.

B. Body cells have two sets of chromosomes while sex cells have one set. Therefore, when two sex cells meet, they form an embryo with two copies of each chromosomes thereby producing a body cell with the exact number of chromosomes. In essence, meiosis maintains the right number of chromosomes of body cells by creating half the number of chromosomes of sex cells.

C. Meiosis.

Explanation:

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3 years ago
The following question is based on information from Frank M. Frey, "Opposing Natural Selection from Herbivores and Pathogens May
SSSSS [86.1K]

Answer:

The correct answer is option d)"the percentage of pink flowers should increase over time".

Explanation:

In this study it is stated that two factors affect the flower coloration of <em>Claytonia virginica</em>: slugs preference of eating pink-flowering plants and bees preference of pollinating pink-flowering plants as well. If the researcher removes all slugs from the study population we can expect that the percentage of pink flowers should increase over time. The removal of the predator that prefers eating pink-flowering plants will favor the reproduction of this type of plants, which are also favored by bees pollination preference.

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3 years ago
Why is it important to stain youngcultures of bacteria with<br> the grain stain?
uranmaximum [27]

Answer:

Because older cultures of gram-positive bacteria tend to lose their ability to retain crystal-violet in the peptidoglycan of their cell walls and can be confused with gram-negative bacteria.

Explanation:

Gram staining is used to differentiate between two major groups of bacteria. Gram-positive and gram-negative, these bacteria differ in the amount of peptidoglycan in their cell walls. Gram-positive bacteria have a higher amount of peptidoglycan, which absorbs the violet crystal complex used in gram staining, staining them purple/violet. Old cultures of gram-positive bacteria tend to lose the ability to retain the violet crystal and are stained by safranine, staining them red/pink and appear to be gram-negative.

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3 years ago
Which organism can process more complex information due to a central brain?
aleksandrvk [35]
The answer is D. Fish
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