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rosijanka [135]
3 years ago
11

How can we describe the global food challenge? ​

Biology
2 answers:
Inga [223]3 years ago
3 0
The series explores strategies to sustainably feed more than 9 billion people by 2050. All pieces are based on research being conducted for the 2013-2014 World Resources Report. The world is projected to hold a whopping 9.6 billion people by 2050.
zhuklara [117]3 years ago
3 0
It can be good and bad, because it’s making businesses very popular and getting more money, but it can be bad because the climate can change and then nothing can be planted.
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What is the function of the lymph nodes?
Kaylis [27]

Answer:

Lymph nodes absorb excess fluid from blood

Explanation:

Lymph nodes are part of lymphatic system. Lymph nodes perform two main function; one is to enhance the immunity by producing immune cells, and other is to absorb excess fluid that is continuously leaking from blood vessels. this fluid includes water, protein and other substances too. Lymph nodes are rich source of immune cells too.

5 0
3 years ago
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Why does a vestigial pelvis show that the ancestors of the modern whale once had legs?
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For a long time scientist figured that the bones are so small because They are vestigial, a shrunken evolutionary remnant From an ancestor that once walked on land. But now scientists Have discovered that the tiny bones they actually play a huge role in whale reproduction.
8 0
3 years ago
The textbook notes that some birds can detect the ultraviolet radiation reflected from feathers of potential mates. As compared
NeX [460]

Answer:

The answer is lower-frequency wavelengths. :)

6 0
3 years ago
Does photosynthesis and cellular respiration need enzymes? Why?
leva [86]

Photosynthesis is the process by which plants use the sunlight as a form of energy by converting carbon dioxide to make organic compounds that are necessary for growth.

In the first two stages of photosynthesis, the enzymes of the light-dependent reactions are activated by light and oxidation occurs, yielding oxygen gas and hydrogen ions. The hydrogen ions are used in the electron transport chain and are passed through the thylakoid. The electron transport chain results in the catalyzed reaction of adenosine diphosphate, or ADP, to adenosine triphosphate, or ATP, which is a source of chemical energy.

Later on in the Calvin cycle, the enzymes are important for the production of a three-carbon sugar, then a six-carbon sugar. There are three phases of the cycle that are powered by ATP and nicotinamide adenine dinucleotide phosphate, or NADPH. Being that the Calvin cycle is a metabolic pathway, the carbon compounds produced in the cycle are an important energy source that are used to make organic compounds used by the autotroph.

7 0
3 years ago
Select the four statements that are true. Select the four statements that are true.
olganol [36]

Answer: Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFW genotype is 96.

Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFB genotype is 12.

The population may be evolving because the actual number of individuals with each genotype differs from the expected number of individuals with each genotype.

The population is not at Hardy-Weinberg equilibrium.

Explanation:

The FB allele should accounts for 120 of the alleles (40 × 2 = 80 in FBFB wolves, + 40 × 1 = 40 in FBFW wolves).

the FB allele would make up 20% (120/600) of the total alleles in the population, so the value of p would be 0.2. The allele frequencies of the population must add up to one for it to be valid (what this means is p+q=1); therefore, since the value of p is 0.2, and the value of q is 0.8.

According to the Hardy-Weinberg equation, the expected frequencies of the genotypes would add up to 1.

= p2+2pq+q2

= 1

or

= 0.22+2(0.2)(0.8)+0.82

= 1

or

= 0.04+0.32+0.64

= 1

8 0
3 years ago
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