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nikklg [1K]
3 years ago
12

Write a scientific explanation that describes total world carbon emissions in 2050 if the world’s population decreases to five b

illion people.
Biology
1 answer:
mrs_skeptik [129]3 years ago
3 0

Explanation:

The current world population of 7.6 billion is expected to reach 8.6 billion in 2030, 9.8 billion in 2050 and 11.2 billion in 2100, according to a new United Nations report being launched today. With roughly 83 million people being added to the world’s population every year, the upward trend in population size is expected to continue, even assuming that fertility levels will continue to decline.

The World Population Prospects: The 2017 Revision, published by the UN Department of Economic and Social Affairs, provides a comprehensive review of global demographic trends and prospects for the future. The information is essential to guide policies aimed at achieving the new Sustainable Development Goals.

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In chickens, the allele for a pea comb (A) is dominant to the allele for a single comb (a). A mother with the genotype Aa and a
zloy xaker [14]

Answer:

The percent chance that the offspring will have a single comb is 25 %

Explanation:

Given,

The allele for single comb represented as "a" is recessive to the allele for pea comb represented as "A"

Genotype of male - Aa

Genotype of female - Aa

Gamete of Male - A, a

Gamete of female - A, a

Cross between Aa and Aa will produce

AA, Aa, Aa, aa

Thus, out of four offspring only one has "aa" genotype and hence this individual will express the recessive trait i,e  aa

The percent chance that the offspring will have a single comb is

\frac{1}{4} * 100\\

25 %

4 0
3 years ago
What is the function of tyrosine-kinase receptors?
I am Lyosha [343]

Answer:

Cell growth but also involved in cancer development

Explanation:

Tyrosine-kinase receptors are the main receptors for the growth hormones, but also cytokines and hormones. These receptors are regulators of normal cellular processes, but if a mutation occurs it can lead to activation of a series of signalling cascades that  change the gene expression. Consequently, this has a critical role in the development and progression of many types of cancer.

5 0
3 years ago
The spindle apparatus begins to become visible during
Rina8888 [55]

Answer:

answer is prophase

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5 0
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Which of these has only prokaryotic cells?
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fungi is a prokaryotic

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Which molecule is correctly paired with the class of molecule to<br> which it belongs?
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Which molecule is correctly paired with the class of molecule to

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