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Alex
3 years ago
8

A mammal embryo worksheet. fill in the blanks with the correct answers. after two months of development, the embryo is called a

fetus. the ___ is formed in part from the inner lining of the uterus and in part from other membranes. it is through the placenta that that the embryo/fetus is nourished while in the ____ and _____ are carried away.
Biology
2 answers:
dezoksy [38]3 years ago
5 0
After two months of development, the embryo is called a fetus. The endometrium is formed in part from the inner lining of the uterus and in part from other membranes. It is through the placenta that that the embryo/fetus is nourished while in the umbilical cord and three blood vessels are carried away.

 

melisa1 [442]3 years ago
5 0
<h2>Embryo Fetus is Nourished </h2>

After two months of development, the embryo is called a fetus. The endometrium is formed in part from the inner lining of the uterus and in part from other membranes. It is through the placenta that that the embryo/fetus is nourished while in the umbilical cord and three blood vessels are carried away.


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Nondisjunction during meiosis results in an abnormal number of chromosomes in one or more gametes. In some cases of nondisjuncti
den301095 [7]

Answer:

haploid (n) or triploid (3n)

Explanation:

If none of the chromosomes separate during meiosis, the resulting gametes will either lack chromosome or have diploid number (2n) of chromosome instead of a haploid number.

If an egg without chromosome (o) fertilizes a normal sperm (n), the resulting zygote will have haploid number (n) of chromosome.

If an egg with diploid number of chromosome (2n) fertilizes a normal sperm (n), the resulting zygote will be a triploid with 3n number of chromosome.

8 0
3 years ago
If you used a microscope to observe a heart cell and a skin cell, would you find that two cells are exactly the same?
vredina [299]

no beacuse they are differnt parts of the human with different functions

8 0
3 years ago
Which compound is most likely a powerful and dangerous acid
____ [38]
The best and most correct answer provided by the question is HBr, the most powerful and dangerous acid. I hope my answer has come to your help. hope this helps and have a nice day!
6 0
3 years ago
In a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. In a population of fr
swat32

The correct answer is optionD 134/200.

The frequency of the dominant allele can be calculated by the summation of the frequency of the homozygous individual frequency that has  dominant allele  and half of the heterozygous individuals, as half of the heterozygotes have dominant allele.

The frequency is no of individual of desired trait divided by total number of individual.

The calculation is shown below:frequency of dominant allele=frequency of dominant individual+\frac{1}{2} frequency of heterozygotes\\frequency of dominant allele=\frac{50}{100} +\frac{1}{2} (\frac{34}{100} )\\frequency of dominant allele=\frac{50}{100} +\frac{34}{200} \\frequency of dominant allele=\frac{2(50)+34}{200}\\ frequency of dominant allele=\frac{134}{200}

8 0
3 years ago
Read 2 more answers
6.
JulijaS [17]

Answer:

A. Producer and consumer

Explanation:

The relationship between snails and elodea is symbiotic in that the snail eats algae and produces carbon dioxide. The elodea takes in the carbon dioxide and, through photosynthesis, creates oxygen, which the snail and every living thing in the tank uses to breathe.

4 0
3 years ago
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