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MAXImum [283]
2 years ago
5

Energy and nutrients both move through food chains. They are different, however, because nutrients are 1. lost to the atmosphere

2. recycled 3. used up 4. all of these anwers are correct​
Biology
1 answer:
True [87]2 years ago
7 0
4. all of these answers are correct
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In a species of chickens, incomplete dominance between alleles for black (B) and white(w) feathers
MariettaO [177]

Answer:

1/2

Explanation:

This question involves a single gene coding for feather color in chickens. The black allele (B) is incompletely dominant over the white allele (W). This means that the allele B will not mask the phenotypic expression of allele W, hence, a third intermediate blue phenotype (BW) will be produced.

According to the question, if two blue chickens are crossed i.e. BW × BW, the gametes B and W will be produced by each parent. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:

BB, BW and WW in the ratio 1:2:1

BB is black, BW is blue, WW is white. Hence, the probability of producing a blue chicken from this cross is 1/2.

6 0
3 years ago
The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that
qwelly [4]
The most plausible hypothesis is: Tropical regions generally have more available water and higher levels of solar radiation. They also have very high rates of immigration and very low rates of extinction.

explanation:
Water is essential for an abundance of life, and sunlight is the means by which the whole food chain receives energy. Plants convert the sunlight into food, herbivores eat them, and other animals eat herbivores.

Hope this helps, and muchas luck on your biology.
7 0
3 years ago
A physician who developed a system of medical knowledge based on anatomical studies?
Liono4ka [1.6K]

The correct answer is Galen.  

Galen considered anatomy as the foundation of medical knowledge, and he recurrently dichotomized and tested on the lower animals like pigs, sheep, and goats. Galen's supported dissection as the method to better the skills of surgery and research works.  

In his work, he illustrated seven pairs of cranial nerves, observed the structural distinctions between the veins and arteries, and illustrated the valves of the heart.  


8 0
3 years ago
Compare and contrast the contributions of Neel, Pauling, and Ingram to our understanding of the genetic and molecular basis of s
taurus [48]

He demonstrated that SCD and sickle cell trait were due to the presence of abnormal 8-globin polypeptides in red blood cells. He demonstrated that the electrophhoretic mobility of B-globin from patients with SCD was different from that of healthy individuals. He demonstrated that both parents of multiple patients with SCD had low levels of sickled red blood cells. He hypothesized that SCD was a recessive trait and that the parents of patients with SCD would be heterozygous carriers. He demonstrated that the difference between B-globin polypeptides in individuals who were healthy and those with SCD is an amino acid substitution. He performed a peptide fingerprint analysis on B-globin from individuals with 84 84 and 89 88, which identified the segment of B-globin that was changed by the BS mutation. James Neel Linus Pauling Vernon Ingram

hope it helps..

7 0
3 years ago
In which month would Chicago experience the Autumnal (fall) Equinox?
VashaNatasha [74]

Answer:

This means Chicago will experience the equinox at 2:50 a.m., Phoenix at 1:50 a.m. and Los Angeles at 12:50 a.m., all local time. At this moment, the equator will be pointed directly at the center of the sun. The fall season will last until the winter solstice, which occurs around December 21

Explanation: Hope this helps u good luck

4 0
3 years ago
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