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alex41 [277]
3 years ago
6

Which organism would probably be the first to grow on a new volcanic island?

Biology
1 answer:
kvasek [131]3 years ago
8 0
Grass would be the correct answer because grass seeds can float in the air. It grows everywhere and at any weather.
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In human reproduction, this is a very important hormone. In women, it stimulates follicle development and in men, it stimulates
Ivanshal [37]
<span>This is the "Follicle stimulating hormone (FSH)." This FSH hormone is essential to the reproductive system in general. 


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7 0
3 years ago
An individual that is heterozygous for flower color and for height (PpTt) is test crossed. What is the phenotypic ratio of the o
MrRa [10]

Answer:

9:3:3:1

Explanation:

This type of crossing that involves two characters is referred to as dihybrid crossing. Generally, when there is a dihybrid crossing for heterozygous genes for both parents, the phenotypic ratio is usually 9:3:3:1 as shown in the figure in the attached document below.

Assuming the colour is White (P) and Black (p) and the

Height is Tall (T) and short (t)

The possible phenotypes will be in the ration

9 - White and Tall

3 - White and short

3 - Black and Tall

1 - Black and short

It should be noted that phenotypic ratio (phenotype) describes the outward appearance (what can be see physically) and not the genetic make-up. Thus, where there is a dominant character like P or T, the recessive characters are not considered to have been expressed.

Download docx
3 0
2 years ago
In the 1960s, minerals and fossils in Africa were found to be identical to those in:
Marianna [84]
I believe South America
8 0
3 years ago
How can a bacterium ensure that there is always a concentration gradient that will drive passive transport of food molecules int
Sati [7]

Answer:

There are two major ways that molecules can be moved across a membrane, and ... is trying to be evenly distributed everywhere, like dropping food coloring in water. ... These channels are almost always specific for either a certain molecule or a ... When a molecule moves down its concentration gradient is it participating.

8 0
2 years ago
Distinguish between dimorphic, polymorphic, and continuously variable traits.
jolli1 [7]

Dimorphic, polymorphic, and continuously variable traits are distinguished as follows:

  • Dimorphism is the condition of those<em> species</em> of animals or plants that exhibit two anatomical aspects or two different forms.

  • When talking about polymorphisms in genetics, reference is made to the different variations that may exist on the DNA of the same gene.

  • Continuously variable traits are those that show a continuous distribution of phenotypes.

Therefore, we can conclude that dimorphism is a polymorphism with only two forms, the polymorphism is any stable change of the DNA fixed in the population and in continuously variable traits the phenotypes show a continuous series and cannot be easily grouped.

Learn more about polymorphic traits here: brainly.com/question/7882029

8 0
2 years ago
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