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padilas [110]
3 years ago
9

Which of these is a biotic factor of an ecosystem?

Biology
2 answers:
anzhelika [568]3 years ago
7 0
The answer i believe is b 

luda_lava [24]3 years ago
4 0
B, The bacteria that live in the intestine of a rabbit. Biotic creature are things that are living, breathing, and need food/water to live. Hope this helps!! & have a great day!!!
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Where else is amylase secreted in the digestive system?
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Salivary amylase is produced in the salivary glands, while pancreatic amylase is produced in the pancreas
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4 years ago
DO YOUR CELLS HAVE ANYTHING IN COMMON<br> WITH PLANT CELLS?
Serggg [28]

Answer:

Explanation:

Yes. They both have a cell membrane. They have many organelles that animal cells have and a cell membrane is one of the few similarities.

4 0
4 years ago
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A pure-breeding fruit fly with curled wings mates with a pure-breeding fruit fly with normal (straight) wings. The F1 mate with
vesna_86 [32]

Answer:

The dominant curled wing allele is also a recessive lethal.

Explanation:

If we look at the F2 ratio we see that :  

curled wings: straight wings= 160:80

                                               =2:1

Hence,  if curled wings is considered to be a dominant trait then Curled wings * straight wings

Dd x dd

Punnet square will be as follows :

           d                    d

D   |    Dd   |        Dd

d    |    Dd   |        dd

Hence in order to get F2

Dd x dd

Punnet square will be the same as above if the F1 cross is Dd* Dd

        D    d

D DD Dd

d Dd dd

if DD is lethal then the ratio is

Dd:dd=2:1

that is curled wings: straight wings=2:1

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6 0
4 years ago
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Nitrogen and Phosphorus

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Thus, Nitrogen and Phosphorous are limiting nutrients.

3 0
3 years ago
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I need to know the lesson or read it.
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