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grandymaker [24]
3 years ago
8

What are the functions of veins ?

Biology
2 answers:
coldgirl [10]3 years ago
7 0

Answer:

They are veins and arteries. The primary function of arteries is to transport highly oxygenated, nutrient-rich blood from our hearts and distribute it to the rest of our body. Veins, on the other hand, are used to pump much-needed blood back to the heart.

Sergeeva-Olga [200]3 years ago
7 0

Answer:

Veins are used to pump blood back to the heart.

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UkoKoshka [18]

<u>The four types of interactions in communities are:</u>

  • Mutualism
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  • Commensalism
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<u>Definition of each interaction:</u>

<em>Mutualism: </em>

The type of interaction in which both the species involved are benefited, it is called mutualism.

<em>Parasitism:</em>

The type of interaction in which one species is benefited, whereas the other is harmed, it is called parasitism.

<em>Commensalism:</em>

The type of interaction in which one species gets benefited without harming or providing benefits to others is called commensalism.

<em>Competition:</em>

The type of interaction in which both species lose is called competition. It is opposite of mutualism.

<u>Symbiotic relationship:</u>

It refers to the type of interaction in which lastly one species gets benefited. The type of interactions such as <em>mutualism, commensalism, and Parasitism </em>are considered as symbiotic relationship.

7 0
3 years ago
How can two organisms with a dominant trait for a specific feature produce an organism with a recessive trait for the same featu
Liono4ka [1.6K]

Answer:

If the two organisms are heterozygous for the dominant trait.

Explanation:

For every trait, a diploid organism receives two forms of gene called ALLELE, from each parent. Allele is the variant form of a gene.

According to Mendel's law of dominance, for a particular trait, an allele is capable of masking the expression of another allele in a gene. The expressed allele is called the DOMINANT allele while the masked allele is called the RECESSIVE allele. Due to this, an organism can express a dominant trait even in a combined or heterozygous state i.e. different alleles.

When the two heterozygous organisms mate or are crossed, they undergo meiosis and their alleles are separated into GAMETES according to Mendel's law of segregation. For example; an organism with genotype (genetic make-up) Aa will produce gametes with A and a alleles.

Note that, a recessive trait can only be expressed in a homozygous state i.e. same allele. Hence, the two heterozygous organisms will produce gametes containing the recessive allele, which will likely combine to produce a recessive phenotype or trait.

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3 years ago
What are somatic cells
vodomira [7]
<span>any cell of a living organism other than the reproductive cells is called a somatic cells. </span>
5 0
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Volcanoes on mars kinda look like craters on earth. They look like mounds, its hard to explain.

-TheOneandOnly003

5 0
3 years ago
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PLEASE HELP!!!
8090 [49]

Answer:

Umm I would think c

Explanation:

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3 years ago
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