Biology College

Which component of blood contains
no nucleus or organelles and carries
oxygen to body tissues?

Which Component Of Blood Containsno Nucleus Or Organelles And Carriesoxygen To Body Tissues?

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Answer 1

Answer:

Red Blood Cells

Explanation:

They mainly contain hemoglobin, and no nucleus or organelles, it also carries oxygen to body tissues.

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I really need this question answered

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Answer:

i don't know how i do ???????????????????

If each parent has two sets of genes and chromosomes why do their offspring receive only one set from each parent

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Answer:

Because we are diploid humans, and we have 2 chromosomes per set. We get one set from our mother, and one from out father. Each of the sets from our parents are haploid (1 ), so together they are a diploid(2) set. I can go into depth more with meiosis if you need.

Explanation:

g persons with the inherited disease familial hypercholesterolemia have very high levels of cholestoral because of

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Answer:

a genetic mutation passed on by one or two of their parents.

Explanation:

What are the three layers that make up the body of a Cnidarian?

A. endoderm, mesoderm, ectoderm
B. endoderm, mesoglea, ectoderm
C. ectoderm, mesoderm, mesoglea
D. endoderm, mesoglea, epidermis

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The endoderm is the inner layer ('endo' for 'within'), and the ectoderm is the outer layer ('ecto' for 'outer'). If there was a third layer it would be called the mesoderm, 'meso' for 'middle'. But cnidarians do not have this middle layer. Germ layers develop during gastrulation.

Answer:

endoderm, mesoglea, ectoderm

Explanation:

took the test

3. In 1981, a stray black cat with unusual curled-back ears was adopted by a family in California. Suppose you were the person who owned the first "curl" cat, and wanted to develop it into its own breed. How would you determine whether the allele for curled ears is dominant or recessive? Why does it make a difference for breeders whether an allele for a trait is dominant or recessive?

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It is possible to determine whether the allele for curled ears is dominant or recessive by performing a test cross. It is fundamental for breeders because desired traits show differential patterns of inheritance.

In a diploid (2n) organism, a given gene locus exhibit two different variants or forms called 'alleles'.

An individual is homo-zygous when both alleles for a given gene locus are the same, while an individual is heterozygous when alleles are different.

In cases of complete dominance, the expression of the recessive allele is completely masked in heterozygous individuals.

A breeder is a professional who performs genetic crosses between different organisms in order to obtain offspring (eg., plants, animals, etc) with desired phenotypic features.

A test cross is a type of cross that breeders use to determine whether an allele is dominant or recessive (in this case, the allele for curled ears).

In a test cross, the organism that is a carrier of the unidentified allele is crossed with another organism that is believed to be homo-zygous for the recessive trait, and then the proportion of offspring is examined.

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Question 4 I need help with

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Show us the word bank

some scientists predict that if global warming continues over the next few centuries, melting of the polar ice caps will rise the level of the oceans causing some peninsulas to become islands. how might this change eventually affect the species that live on these peninsulas?

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Answer:

As global warming causes more snow and ice to melt each summer, the ocean and land that were underneath the ice are exposed at the Earth's surface. Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the heat to the atmosphere.

-. What describes the conversion of ADP to ATP?

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Answer:

Two processes convert ADP into ATP: 1) substrate-level phosphorylation; and 2) chemiosmosis. Substrate-level phosphorylation occurs in the cytoplasm when an enzyme attaches a third phosphate to the ADP (both ADP and the phosphates are the substrates on which the enzyme acts).

Explanation:

how to report an account that keeps posting these links in our answers?​

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When they answer the questions, there is a flag that appears, if you click on it, you can flag the answer and it reports them.

Which explains why the nuclear membrane breaks down during cell division?
So the cytoplasm can be divided.
So the duplicated chromosomes can be separated into new cells.
So the chromosomes can be replicated.
So it makes it easier for the DNA to be mutated.

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So the chromosome can be replicated is the awser

what is Nuclear Fusion. ​

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Answer: Nuclear Fusion occurs when the nuclear components of an atom combine.

How can accidental transfer of DNA impact a crime scene investigation? In addition, explain why accidental DNA transfer cannot be used as an excuse to throw away all DNA evidence found at a crime scene?

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Answer:

orensically valuable DNA can be found on evidence that is decades old. However, several factors can affect the DNA left at a crime scene, including environmental factors (e.g., heat, sunlight, moisture, bacteria, and mold). Therefore, not all DNA evidence will result in a usable DNA profile.

Explanation:

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