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notka56 [123]
2 years ago
8

Sally notices that after it rains, water beads up on the surface of many leaves of the

Biology
1 answer:
Blababa [14]2 years ago
4 0

The property of polarity of the water and cohesion could be the actual responsible for the beading up of water on the surface of leaves.

What is cohesion?

Cohesion, also known as cohesive attraction or cohesive force, is the action or quality of like molecules sticking together and being attracted to one another (from the Latin cohaesi, "cohesion, unity"). The uneven distribution of surrounding electrons that results when molecules are close to one another creates electrical attraction, which can keep a small structure like a water drop in place. This attribute of a substance is caused by the shape and structure of its molecules. Surface tension is made possible by cohesion, resulting in a "solid-like" state that allows for the placement of light or low-density materials.

It turns out that the tendency of water molecules to attract one another, or the tendency of cohesion, is what causes surface tension. The "lowest energy state," or the state in which the atoms in the molecule are utilizing the least amount of energy, is when a water drop takes on its natural form. This condition of water occurs when a water molecule forms a sphere or ball and is encircled by other water molecules on all sides. On Earth, gravity flattens this perfect sphere into the form of a drop that we can perceive.

To know more about Cohesion, go to URL

brainly.com/question/13570794

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Please answer 5&6. Thank you.
erastovalidia [21]

Answer:

5. The correct answer would be an option A. ova

Note: I assume that all the samples are of human origin.

DNA (deoxyribonucleic acid) content of somatic cells of humans consists of 46 chromosomes or 23 pairs of chromosomes. Gametes (sperm or ova) are haploid cells produced by the process of meiosis and contain half the number of chromosomes found in parent cell. Hence, they contain 23 chromosomes.

6. The correct answer would be an option J.

Sperm formation or spermatogenesis is the process by which spermatozoa (haploid gamete) is produced from germ cell with the help of meiotic division.

Meiosis results in the formation of four haploid (n) cells from single diploid (2n) parent cell. Here, 2n is given as 8 so, n would be equal to 4.

Meiosis I results in the formation of two secondary spermatocyte cells (both haploid or 4 chromosomes in this case) from single primary spermatocyte (diploid or 8 chromosome in this case).

Both the secondary spermatocytes undergo meiosis II to produce 4 spermatids (each haploid or 4 chromosome in this case). Spermatids differentiate and mature into spermatozoa.

3 0
3 years ago
1. How does our ecological footprint affect each of the spheres on Earth?
Viefleur [7K]
Lithosphere (or geosphere) describes all the rocks, minerals and molten magma found on or in the Earth

The hydrosphere describes all the water on Earth – including liquid water (oceans, etc.) and vapour (precipitation)

The atmosphere describes the layer of gases surrounding the Earth and is divided into sections (stratosphere, etc.)

The biosphere is composed of all the living organisms on the planet (including plants, animals, bacteria, etc.)


The four spheres are interconnected, so human impact on one sphere will potentially effect other spheres

The release of plastic pollution into the oceans (hydrosphere) will impact on marine life (biosphere)

The production and release of CFCs into the atmosphere will effect the impact of UV radiation on the biosphere


The Four Earth Spheres



5 0
3 years ago
What cell contains what percentage of the required chromosomes
likoan [24]

Cells with the full set of chromosomes are

diploid somatic cells.

7 0
2 years ago
After giving Type AB- blood to a person that has Type O- blood. what happens
Zina [86]

He dies cuz he doesn't support that blood group

common sense

#BTS army

7 0
3 years ago
What two molecules produced during the light-capturing reactions of photosynthesis are used in the calvin cycle?
Zielflug [23.3K]
Answer: NADPH and ATP.

The Calvin cycle is a set of reactions that happens as part of photosyntesis, after the energy of the light has been taken. That is whay it is said that the Calvin cycle is independent of light or that it is the dark phase of photosynthesis.

The energy of NADPH and ATP molecules is used during Calvin cycle to fixate the CO2.
7 0
3 years ago
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