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nata0808 [166]
2 years ago
6

An ecosystem is a community of organisms at a global level True or False

Biology
1 answer:
const2013 [10]2 years ago
4 0

Answer:

True

Explanation:

Hope this helps

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What is the major way in which local farms help reduce greenhouse gas emissions?
Andrews [41]

Answer:

A

Explanation:

Less pollution means less greenhouse gasses being emitted.

7 0
3 years ago
Imagine that a newly discovered, recessively inherited disease is expressed only in individuals with type O blood, although the
erastova [34]

Complete question:

Imagine that a newly discovered, recessively inherited disease is expressed only in individuals with type O blood, although the disease and blood group are independently inherited.

A normal man with type A blood and a normal woman with type B blood have already had one child with the disease. The woman is now pregnant for a second time.

Assuming that both parents are heterozygous for the gene that causes the disease, what is the probability that the second child will also have the disease? Express your answer as a fraction using the slash symbol and no spaces (for example, 1/2).

Answer:

The probability that the second child will also have the disease is 1/16.

Explanation:

<u>Available data:</u>

  • Two genes independently inherited: one for blood type, the other for disease
  • Man with type A blood  x  Woman with type B blood
  • Both parents are heterozygous for the gene that causes the disease; Dd

If the man has A blood, and the woman has B blood, and they already have an affected child, this means that they must be heterozygous for blood type too.

Cross:  

Parentals)           AiDd         x      BiDd

Gametes)  AD  Ad  iD  id       BD  Bd  iD  id

Punnett square)      AD       Ad       iD       id

                     BD   ABDD  ABDd  BiDD BiDd

                     Bd   ABDd   ABdd   BiDd Bidd

                     iD    AiDD    AiDd    iiDD   iiDd

                     id    AiDd     Aidd     iiDd    iidd

F1) <u>Genotype</u>:

1/16 ABDD

2/16 ABDd

1/16 ABdd

1/16 AiDD

1/16 BiDD

2/16 AiDd

2/16 BiDd

1/16 Aidd

1/16 Bidd

1/16 iiDD

2/16 iiDd

1/16 iidd

<u>Phenotype:</u>

3/16 A/B normal

4/16 A normal

4/16 B normal

3/16 0 normal

1/16 0 affected by the disease.

3 0
3 years ago
Which process is defined as breaking down rocks into smaller pieces without changing the rocks compositions
vodomira [7]

Answer:

I'm pretty sure it's called erosion.

Explanation:

4 0
3 years ago
Read 2 more answers
How long did it take for rattlesnakes to adapt without a rattle?
malfutka [58]

Answer:

They haven't yet, that is a myth. Rattlesnakes still have a rattle and probably always will.

Explanation:

4 0
3 years ago
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What stores and delivers nutrients throughout the cell and transports waste to the cell membrane
mixer [17]

\huge \sf \star{Answer} \star

Vacuoles store water, food, and waste. The endoplasmic reticulum (ER) is a series of tunnels throughout the cytoplasm. They transport proteins from one part of the cell to another. Ribosomes are the protein factories of the cell.

<h3>Hope it helps uh...</h3>

6 0
3 years ago
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