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Gemiola [76]
3 years ago
9

Please help these 3 question, no one ever answeres my questions fully, people are just trying to get points and i need help!! is

second one correct, others i need help

Biology
2 answers:
devlian [24]3 years ago
6 0
1. Climate change raises the temperature of seawater, which interferes with coral's symbiotic relationship with algae
2. The first option seem like a good answer
3. the second option

Hope this helped :)
Allushta [10]3 years ago
4 0

ANSWER:

1. A

2. A

3. B

EXPLANATION:

For the first question, Numerous studies have been conducted to investigate the impact of increasing CO2 levels on corals, and they all arrive at the conclusion that high CO2 levels make it difficult for marine organisms to create their calcium carbonate shells.

Coral reefs are likely to be affected by these changes because of their sensitive nature. They are sensitive to thermal stress and their ability to adapt to changing conditions is low. Research shows that an increase of 1 to 3°C in sea surface temperature will cause widespread mortality and more frequent bleaching (Bernstein et al. 2007).

For the second question, Refraction occurs when light goes through a water surface since water has a refractive index of 1.33 and air has a refractive index of about 1. The speed increases in the atmosphere.

For the third question, human activities keep increasing the effect of global warming. Global warming has a clearly observed, long term effect on Arctic sea ice. In fact, although climate models predict that Arctic sea ice will decline in response to greenhouse gas increases, the current pace of retreat at the end of the melt season is exceeding the models’ forecasts by around a factor of 3.

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8 0
2 years ago
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Orlov [11]

Answer: The man's genotype is WwLt while the woman's genotype is wwLt.

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The man has wide jaw but his mother has a narrow jaw, since narrow jaw is recessive the man must have inherited one recessive allele for narrow jaw from his mother who has two recessive alleles for narrow jaw. Therefore since the man has wide jaw, he must be heterozygous for wide jaw (having one dominant allele for wide jaw and one recessive allele for narrow jaw), his genotype for wide jaw is therefore Ww. The man is heterozygous for teeth size, this means that he has one dominant allele for large teeth and one recessive allele for small teeth. His genotype for teeth size is Lt. Therefore the man's genotype is WwLt.

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