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Katarina [22]
3 years ago
12

What kind of relationship does a tapeworm have with the cow whose gut it is living in

Biology
1 answer:
Andreas93 [3]3 years ago
6 0
This relationship would be called parasitism. Its when one individual lives on or in and feeds on a host organism.
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Describe the vascular system of plants. Include brief descriptions of the characteristics and function of xylem and phloem.
solong [7]

Answer:

The vascular tissue of the plants distributes water and nutrients, which guarantees a constant growth. Each newly formed cell needs to become the corresponding cell type in vascular tissue.

Explanation:

Like animals, plants need water and nutrients. While animals use a circulatory and digestive system to obtain and distribute nutrients, plants use a vascular system. This system absorbs water, vitamins and minerals from the soil and then transmits energy in the form of carbohydrates to the roots. The main components of the vascular system are the xylem and the phloem.

<u>Xylem</u> is a complex tissue formed by several cell types. Its function is the conduction of water and minerals from the root to the leaves. Among the cells that form this complex tissue differ:

- Conductive cells or tracheal elements: they are dead elements at maturity, they serve for vertical conduction and support

- Vessel members are observed in Angiosperms, the largest plant group with the most recent evolution; They are short, wide cells with thick secondary walls, they differ from tracheids because they are perforated elements.

- Storage elements: parenchymal cells, thick walls, secondary, can present crystals and other cellular contents.

- Support elements: fibers in the Angiosperms and fibrotracheids in Gymnosperms, elements of intermediate characters between the fibers and the tracheids.

<u> Phloem</u> cells conduct food (photosynthesis produced by photosynthesis) from the leaves to the rest of the plant. They are living cells at maturity and in histological preparations colored with Astrablue take the color blue. Phloem cells are located outside the xylem.

The sieve elements of this tissue are: the sieve cells in the Gymnosperms and the members of sieve tubes with their respective accompanying cells in the Angiosperms. The accompanying cells retain their nuclei and control the neighboring sieve tubes. Dissolved food, such as sucrose, circulates through the screened areas that connect these cells to each other.

Being a complex tissue, it also has parenchymal cells for storage and fibers and sclereids as a support.

4 0
4 years ago
You place a drop food coloring in a cup of cold water and another drop of food coloring in a cup of hot water.
Liono4ka [1.6K]
It would mix faster in the hot water because it moves free and more faster with a bunch of water vapor coming off of it
3 0
3 years ago
Best answer gets brainliest!! <br><br> Which sex chromosomes do men and women inherit?
zepelin [54]

Answer:

women inherit the X chromosomes and men inherit the Y chromosomes

Explanation:

5 0
3 years ago
Scientists use DNA to track the migration of humans across the planet. After a group migrates away from their ancestral homeland
Alinara [238K]

Answer: The Americas

Explanation:

Scientists use DNA to track the migration of humans across the planet. After a group migrates away from their ancestral homeland, any mutations that occur are not mixed with those left in the ancestral population. Therefore, DNA samples taken from __the Americas__ would have the most unique mutations, representing the most recent population to migrate to a new area.

6 0
3 years ago
Michelle was curious about her mother's blood type. Michelle knew that her own blood type was o,
babymother [125]

Blood type is determined by the I gene. IAIA and IAi determines A blood type. IBIB and IBi determines B blood type. ii determines 0 blood type. <em>Michelle's mother must at least carry one recessive allele i</em>.

--------------------------------

The blood type is determined by a gene, which is triallelic.

  • IA dominant over i. The person presents A type of antigens.

  • IB dominant over i. The person presents B type of antigens.

  • IA and IB are codominant. The person presents both types of antigens, A and B.

  • i is the recessive allele. The person does not present any antigen.

⇒  H0m0zyg0us dominant individuals IAIA, or heter0zyg0us Individuals IAi, will express the A blood type.

⇒  H0m0zyg0us dominant individuals IBIB, or heter0zyg0us Individuals IBi, will express the B blood type.

⇒ Individuals with h0m0zyg0us recessive genotype, ii will express the 0 blood type.

⇒ Individuals carrying IA and IB alleles will express the AB blood type.

To solve the problem, we will use this information.

We know that

  • Michelle is blood type 0

  • Father is blood type A

  • Brother and sister are blood type A

  • Mother??

⇒ If Michelle is blood type 0, then her genotype is ii. She must have received one recessive allele from her father and one from her mother.

⇒ This suggests that Michelle's father, who is blood type A, is heter0zyg0us IAi. He must have at least one dominant allele IA that determines his phenotype, and one i allele.

⇒ Michelle's brother and sisters are also type A. They might be either h0m0zyg0us dominant IAIA or heter0zyg0us IAi.

⇒ Michelle's mother should have<u> at least </u>one recessive allele i. She could be either IAi or IBi, or ii. There are three possible option for her genotype.

Let us make the Punnet squares to understand it better. We know the genotype of the father, but there are three options for the mother.

<u>Option 1</u>

Cross)   father x mother

Parentals)  IAi     x     IAi

Gametes)  IA    i      IA     i

Punnett square)      IA       i

                       IA    IAIA    IAi

                        i     IAi       ii

F1) 25% of the progeny is expected to be h0m0zyg0us dominant IAIA

     50% of the progeny is expected to be heter0zygus IAi

     25% of the progeny is expected to be h0m0zyg0us recessive ii

75% of the progeny is expected to be blood type A ⇒ IAIA and IAi ⇒ Sisters and brother

25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle

<u>Option 2</u>

Cross)   father x mother

Parentals)  IAi     x     IBi

Gametes)  IA    i      IB     i

Punnett square)      IA       i

                       IB    IBIA    IBi

                        i     IAi       ii

F1)  25% of the progeny is expected to be IAIB

     25% of the progeny is expected to be heter0zygus IAi

     25% of the progeny is expected to be heter0zygus IBi

     25% of the progeny is expected to be h0m0zyg0us recessive ii

25% of the progeny is expected to be blood type AB ⇒ IAIB

25% of the progeny is expected to be blood type A ⇒ IAi ⇒ Sisters and brother

25% of the progeny is expected to be blood type B ⇒ IBi

25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle

<u>Option 3</u>

Cross)   father x mother

Parentals)  IAi     x     ii

Gametes)  IA    i      i     i

Punnett square)      IA       i

                        i     IAi        ii

                        i     IAi        ii

F1)  50% of the progeny is expected to be heter0zygus IAi

     25% of the progeny is expected to be h0m0zyg0us recessive ii

50% of the progeny is expected to be blood type A ⇒  IAi ⇒ Sisters and brother

50% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle

Despite the fact <u>we can not determine for sure the </u><u>mother's genotype</u><u>, </u>we know that <u>she carries at least one </u><u>recessive allele</u>, which is why Michelle's blood type is 0.

------------------------------

Related link: brainly.com/question/256625?referrer=searchResults

                    brainly.com/question/275815?referrer=searchResults

                     

8 0
2 years ago
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