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Lerok [7]
3 years ago
9

How do keystone species shape communities?

Biology
2 answers:
Nesterboy [21]3 years ago
5 0

Answer:

By keeping populations of mussels and barnacles in check

laila [671]3 years ago
3 0

Explanation:

A keystone species is an organism that helps define an entire ecosystem. By keeping populations of mussels and barnacles in check, this sea star helps ensure healthy populations of seaweeds and the communities that feed on them—sea urchins, sea snails, limpets, and bivalves.

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When Mendel crossed the pollen from a plant with green pods with a plant with yellow seed pods, all of the offspring had green s
aleksley [76]

Answer:

True

Explanation:

Let the allele for green color of pods be G

and the allele for yellow color of pods be g

Phenotype of true breeding parent with green colored seeds is GG

Phenotype of true breeding parent with yellow colored seeds is gg

In F1 cross

GG mates with gg

Genotype of offspring - Gg

Phenotype of offspring - Green seed

Since the offspring has both the allele for green and yellow seeds color but yet only green is expressed. This indicate that green allele dominated the expression of yellow allele thus, it can be concluded that green seed pods were dominant over yellow seed pods.

8 0
3 years ago
Could someone plz help me with this!!! with thorough answers!!! One who answers with the best answer gets the crown!
creativ13 [48]

Answer:

Melanin helps the mouse survive because of the fur color. Its color helps it to blend into its surroundings, making it a lot harder for predators to kill it, as the predators have a harder time seeing the mouse.

Explanation:

6 0
3 years ago
One of the major elements of natural selection is that all<br> species have genetic
Genrish500 [490]
One of the major elements of natural selection is that all species have genetic variation. Natural selection is a process when organisms adapt better to their environment. It is an essential key in evolution. There is a change in phenotype of a population over time.
8 0
3 years ago
Read 2 more answers
A woman is heterozygous for the CF-associated gene (the alleles are represented here by the letters A and a). Assuming that meio
harkovskaia [24]

Answer:

The correct answer is C.

Explanation:

In the question, it is stated that the woman is heterozygous, which means she posseses both the dominant allele and the recessive allele (A and a). So taking this information into account, she can produce eggs given with the option C (Aa) which include both the dominant and recessive alleles.

I hope this answer helps.

4 0
3 years ago
The coat of the t2 virus consists of what kind of macromolecules? see section 15.1 ( page 318) . the coat of the t2 virus consis
Karolina [17]
<span>The correct answer is protein.</span>  
<span>
T2 virus is also known as Enterobacteria phage T2. This virus is a bacteriophage, which means that infects and kills E. coli. It consists of DNA and protein: the genome is linear double-stranded DNA, with repeats at either end and the protective coat is protein.</span>
4 0
3 years ago
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