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3 years ago

What are the similarities and differences between food chains and food webs?

1 answer:

4 0

A food chain shows a single connected path of energy flow through an ecosystem. It shows the different levels of eating in an ecosystem. Both a good web and a good chain include a number of organisms including both producers and consumers. A food chain is very simple while a food web is complex and consists of a number of food chains. In a food chain each organism has only one consumer or producer.

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Species A has a diploid number of 42 chromosomes, while species B has a diploid number of 48 chromosomes. Give the chromosome nu

Arada [10]

Answer:

a. autotriploid of species A: 63 chromosomes

b. autotetraploid of species B: 96 chromosomes

c. allotriploid from species A and B: 1) 66 chromosomes and 2) 69 chromosomes

Explanation:

For a.

this species will have 3 haploid sets of chromosomes ('tri' means 3)

one haploid set = 21

21 × 3 = 63 chromosomes

For b.

this species will have 4 haploid sets of chromosomes ('tetra' means 4)

one haploid set = 24

24 × 4 = 96 chromosomes

For c.

there are two ways to do this:

1) two sets of chromosomes from species A and one from species B

42 + 24 = 66 chromosomes

2) one set of chromosomes from species A and two from species B

21 + 48 = 69 chromosomes

Hope that answers the question, have a great day!

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3 years ago

In e. coli, what is the function of dna polymerase iii?

Pavel [41]

DNA polymerase is an enzyme that adds the RNA nucleoides to help build the RNA molecule

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3 years ago

Which body system is responsible for producing offspring

iVinArrow [24]

Answer:

The Reproductive System

Explanation:

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3 years ago

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Describe an experiments to show that ochaled air Cartain carbon dioxide

elena-s [515]

Answer:

Let's find out if exhaled air contains carbon dioxide.

Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.

Explanation:

7 0

3 years ago

According to cell theory, what do each of the following organisms have in common?

natali 33 [55]

Answer:

The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.

Explanation:

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3 years ago