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Vesnalui [34]
3 years ago
10

In humans, females inherit an X chromosome from each parent; males inherit their X chromosome from their mother and their Y chro

mosome from their father. The same is true of all other placental mammals: males produce X and Y gametes, and females produce only X gametes. In this system, referred to as the XX-XY system, maleness is determined by sperm cells that carry the Y chromosome. Yet the XX-XY sex determination system does not occur in all animal species. It is only one of a variety of systems within the animal kingdom. Above are Punnett squares illustrating three examples of gender inheritance patterns: humans, insects and birds. Consider both the illustration and the text. Compare the inheritance system of bird with that of humans.
Biology
2 answers:
Vlad [161]3 years ago
5 0

In bird, females are heterogametic, produce two type of gametes. The two different sex chromosomes of a female bird has been designated to be the Z and W chromosomes. Whereas males have a pair of Z- sex chromosomes. Males are homogametic produce only one type of gametes with Z-sex chromosomes. Thus sex determination is ZW-ZZ type. In humans sex determination is XX-XY type. Males are heterogametic produce X and Y gametes and females are homogametic produce one type of gametes. Therefore, in bird sex are determined by female gametes.  

Firlakuza [10]3 years ago
3 0

Answer: The answer in B for anyone on USATestprep

Explanation:

I just answered the question

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3. Some organelles are present in both plant and animal cells. Each organelle performs a different
Rama09 [41]

Answer:

Organelles that are present in both forms of eukaryotic cells are the following :

Nucleus

Endoplasmic Reticulum

Ribosomal units

Golgi apparatus

Lysosomes

Perixosomes

Mitochondrion

Cytoskeleton/Cytosol

Vacuole

Nucleolus

Plasma membrane

Microtubules/Microfilaments

All celluar functions corresponding to the organelles can be found in both plant and animal cells

Explanation:

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4 0
3 years ago
What will be the theoretcal yield of tungsten(s) ,W, if 45.0 g of WO3 combines as completely as possible with 1.50 g of H2? WO3(
7nadin3 [17]

Answer:

Theoretical yield of tungsten produced = 35.6836915592  ≈ 35. 68 g

Explanation:

The chemical equation can be expressed as follows;

WO3 (s) + 3H2(g) → W(s) + 3 H20(g)

Note that the equation is already balanced.

Molecular Mass of WO3= 183.84 + 15.999 × 3 = 183.84 + 47.997  = 231.837 g

From the equation 1 mole of WO3 reacts with 3 mole of hydrogen molecule.

Molecular mass of tungsten(W) = 183.84 g

1 mole of tungsten was produced from the chemical equation.

WO3 (s) + 3H2(g) → W(s) + 3 H20(g)

From the equation,

231. 837 g of WO3 produces 183.84 g of tungsten

45.0 g of WO3 will produce ?

grams of tungsten produced = 183.84 × 45 /231.837

grams of tungsten produced = 8272.8 /231.837

Theoretical yield of tungsten produced = 35.6836915592  ≈ 35. 68 g

 

7 0
3 years ago
All the animals can be classified into three groups ____,_____,______on the basis of
In-s [12.5K]

Answer:

Herbivores, Carnivores, Omnivores

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4 0
3 years ago
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Jay, Kip, and Tia are each measuring the concentration of a solution. They are doing experiments separately. They are all are us
Anestetic [448]
The measurements taken by Jay are least likely to contain random errors.

When you increase the number of measurements, the random errors tend to minimize, because errors in one direction cancel with errors in the opposed direction.
8 0
3 years ago
Which most accurately describes the basis of the scientific method?
Tanzania [10]

The scientific method's foundation is best described as "the process of hypothesis and testing through which scientific inquiry happens." Thus, the correct option is D.

<h3>What is scientific method?</h3>

The scientific method is a set of actions that are followed in order to develop scientific knowledge.

The scientific process includes the following steps:

  1. To make observations on a particular natural occurrence and then generate questions based on those observations.
  2. To answer these questions, you must propose a credible explanation (i.e., a hypothesis).
  3. To put the working hypothesis to the test using experimental and/or observational methods.
  4. To gather information in order to confirm or refute a working theory.
  5. Analyze the findings and develop conclusions.

For more information regarding scientific method, visit:

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5 0
2 years ago
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