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balu736 [363]
3 years ago
11

Think about the concept of evolution.

Biology
1 answer:
castortr0y [4]3 years ago
7 0

its for the first onehypothesis

h

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How would you differentiate between pollen cells and algae cells?
kompoz [17]

Pollen cells are plant male gametes. On the other hand, algae cells autotrophic protists.

  • Pollen cells and algae cells have DIFFERENT FUNCTION and DIFFERENT SHAPE.

  • Algae are autotrophic microorganisms that synthesize their own food

  • Algae belong to the Protista kingdom. These microorganisms can be unicellular or multicellular.

  • Algae cells have many different forms.

  • Pollen cells represent plant male gametes.

  • During fertilization, pollen cells fuse with the egg cell to form a zygote.

  • Pollen cells have many different forms (generally spherical).

Learn more in:

brainly.com/question/1626452?referrer=searchResults

5 0
3 years ago
all plants give out oxygen during day and carbon dioxide during night. Do you agree with this statement. Give reason
Citrus2011 [14]

This statement is incomplete.

"All plants give out oxygen during day and carbon dioxide during night"

Explanation :

Photosynthesis occurs only during day time.

During this time oxygen is produced . Some oxygen is used for respiration and rest of oxygen is diffused out into air.

Carbon dioxide produced during day time by respiration is used in photosynthesis.

But at night time, no photosynthesis occurs  and hence no oxygen is produced oxygen from air diffuses into leaves to carry out respiration and carbon dioxide produced by respiration diffuses out into air.

Hence Respiration occurs day and night .. Hence Carbon dioxide  is emitted  all the time....

Plz Mark Brainliest trying to reach expert

8 0
2 years ago
Which post disaster phase is generally characterized by optimism due to an infusion of resources?
Tamiku [17]
I think the answer is Honeymoon phase. Post disaster periods are usually divided into four phases. These includes; Heroic phase, Honeymoon phase, Disillusionment phase and Reconstruction phase. Heroic phase occurs immediately after the disaster strikes. Honeymoon phase occurs immediately in the first few days after the disaster. Disillusionment phase, the community and the survvors are already getting tired and impatient. Reconstruction phase, it is the long term phase of the disaster where we must manage the expectations of the public regarding the ongoing recovery process.
5 0
3 years ago
The key difference between fats and
Andru [333]
Phospholipids make up parts of the cell membrane and their in a whole different setting .
3 0
3 years ago
Cystic fibrosis is most common in individuals of Northern European descent, affecting 1 in 3200 newborns. Assuming that these al
IgorLugansk [536]

Answer:

0.0177

Explanation:

Cystic fibrosis is an autosomal recessive disease, thereby an individual must have both copies of the CFTR mutant alleles to have this disease. The Hardy-Weinberg equilibrium states that p² + 2pq + q² = 1, where p² represents the frequency of the homo-zygous dominant genotype (normal phenotype), q² represents the frequency of the homo-zygous recessive genotype (cystic fibrosis phenotype), and 2pq represents the frequency of the heterozygous genotype (individuals that carry one copy of the CFTR mutant allele). Moreover, under Hardy-Weinberg equilibrium, the sum of the dominant 'p' allele frequency and the recessive 'q' allele frequency is equal to 1. In this case, we can observe that the frequency of the homo-zygous recessive condition for cystic fibrosis (q²) is 1/3200. In consequence, the frequency of the recessive allele for cystic fibrosis can be calculated as follows:

1/3200 = q² (have two CFTR mutant alleles) >>  

q = √ (1/3200) = 1/56.57 >>

- Frequency of the CFTR allele q = 1/56.57 = 0.0177  

- Frequency of the dominant 'normal' allele p = 1 - q = 1 - 0.0177 = 0.9823

4 0
3 years ago
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