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Nimfa-mama [501]
3 years ago
11

PLEASE HELP, I only have one attempt

Biology
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

C

Explanation:

A is both gain b is one eats the other and d is one eats a little part of the other

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NEED HELP ANSWER QUICKLY :)
Usimov [2.4K]

Answer: It’s definitely not D. I’m thinking A or C

Explanation:

Because survival of the fittest mean that the ones that aren’t the best will die basically. So that why it’s not D

5 0
2 years ago
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A new kind of tulip is produced that develops only purple or pink flowers. Assume that flower color is controlled by a single-ge
Sophie [7]

Answer:

a. purple allele (C) = 0.609, pink allele (c) = 0.391

b. purple homozygotes = 371, pink homozygotes = 153, heterozygotes = 476

Explanation:

Given -

Purple flowers - 847

Pink flowers - 153

The frequency of recessive genotype i.e

q^ 2 = \frac{153}{1000} \\q^ 2 = 0.153\\

Frequency of recessive allele i.e q is equal to

q = \sqrt{0.153} \\q = 0.391

As per hardy Weinberg's first equilibrium equation -

p + q = 1\\p = 1-q\\p = 1-0.391\\p = 0.609

Frequency of purple homozygous species

= p^2\\= 0.609^2\\= 0.371

Number of purple homozygous species = 0.371 * 1000= 371

Number of pink homozygous species = 0.153 * 1000= 153

Heterozygous species is equal to

(1-0.371-0.153)* 1000\\= 0.476 * 1000\\= 476

5 0
3 years ago
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By signing the Kyoto Protocol, a country commits to decrease its greenhouse gas emissions. Which ecological issue does this prot
Otrada [13]

Answer:

it addresses Loss of Biodiversity

Explanation:

if you read the question you find a key word which is decrease

hope this helped

4 0
3 years ago
The membrane has open K channels, and changing extracellular K concentration results in a change in membrane potential. Changing
MrRissso [65]

Answer: Closed

Explanation:

At  resting membrane potential( RMP) sodium channels remained shut, this is because , previously  in depolarisation,the  voltage  gated sodium  channels  were opened for sodium to diffuse  into the Axon. However   these channels closed  after reaching their refractory period,s.

Therefore a  change  in the extracellular concentration of sodium will not  open them

3 0
3 years ago
??????????????????!????
makvit [3.9K]

Dominant: the more common trait (brown hair)

Recessive: a trait that doesn't show up unless both parents carry it (blue eyes)

Co- dominant: both traits show up and co- exist (AB blood)

Incomplete dominance: when a dominant gene does not completely mask a recessive gene so they blend (pink flower)

Phenotype: physical trait- able to be seen (stripes on a zebra)

Genotype: genetic makeup of an organism - genetic trait

Hetrozygous: different (Bb)

Homzygous dominant: same and dominant (bb) and (BB)

Purebred: same as homzygous- has same alleles (bb) and (BB)

Hybrid: also known as heterozygous traits

1.

75%

25%

orange (AA) blue (aa)

2 orange Aa

2.

0%

100%

Hetrozygous

7 0
3 years ago
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