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Margaret [11]
4 years ago
14

The first 4 questions above

Biology
2 answers:
Drupady [299]4 years ago
8 0
3) gamete
Number 3 is the only one I answered because you should know that by now
kvasek [131]4 years ago
5 0
#2 is haploid and #4 is sister chromatids. :)
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Unicellular organisms excrete waste by _____. osmosis diffusion active transport all of the above
Arturiano [62]

Answer:The answer is  diffusion.

Explanation: Unicellular organisms excrete waste by diffusion.

Unicellular organisms are organisms that have only one cell. They are called single cell organisms because all their life processes such as reproduction, feeding, digestion, and excretion, occur in only one cell. An example of unicellular organism is paramecium.

Diffusion is the inactive movement of molecules  from the region of higher concentration to the region of lower concentration.

4 0
4 years ago
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Saltwater fish constantly drink water but still excrete concentrated urine to compensate for the water loss. They also have gill
SOVA2 [1]
They do not influence the salinity level in their environment, they maintain the salinity in their body. If they don't, osmosis will cause their cells to shrink due to the fact that the salinity in the cell is lower than outside the cell. This will make water leave the cells. So they need to get rid of excess salt all the time. Freshwater fish need to retain the salt in their bodies, otherwise the opposite will happen. Salinity level in the cell is higher than outside the cell and this causes influx of water which will make the cell build up turgor pressure. Ultimately they will explode. So fishes in both environments adapted to deal with osmosis.
8 0
3 years ago
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Explain the following equation: a = F/m.
Umnica [9.8K]

Answer:

acceleration = force / mass

Explanation:

3 0
3 years ago
Which of the following is not a result or consequence of rising average air temperatures on earth?
k0ka [10]
D because just because of all the other effects it has no salt effect on the ocean
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What is nylon and how is it made
Rama09 [41]

Answer:

Nylon is a strong synthetic fibre, which resists abrasion. Nylon doesn’t shrink or stretch through washing, but it is degraded by ultraviolet light.

Explanation:

Nylon is made when the appropriate monomers (the chemical building blocks which make up polymers) are combined to form a long chain via a condensation polymerisation reaction.  The monomers for nylon 6-6 are adipic acid and hexamethylene diamine. The two molecules are combined to create the polymer and water (H2O) is produced as a by-product.  The water is removed from the production process as its continued presence stops the creation of more polymer.  The polymer chain can be made up of over 20,000 monomer units, connected together via an amide group, which contains a nitrogen atom.  The nylon molecules are very flexible with only weak forces, such as hydrogen bonds, between the polymer chains, which tend to tangle randomly. The polymer has to be warmed and drawn out to form strong fibres

4 0
3 years ago
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