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3 years ago

The reproductive parts of an angiosperm are the _________.

Biology

1 answer:

Musya8 [376]3 years ago

5 0

Answer:

e. carpel and stamen is the correct answer.

Explanation:

The reproductive parts of an angiosperm are the carpel and stamen.
Angiosperms are the flowering plants that bear seeds.Examples of angiosperms are: Apple, Brinjal.
The stamen function is to produce and it is a male reproductive structure.
Stamen consist of two parts:
Anther
Stalk
Carpel function is to produce egg cells and to protect the developing embryo and it is female reproductive structures.
Carpel has three parts:
stigma
Style
Ovary

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A contracting skeletal muscle fiber typically shortens as all of its ______ shorten in length.

Genrish500 [490]

Answer:

sarcomeres

Explanation: A contracting skeletal muscle fiber typically shortens as all of its sarcomeres do this.... Thick and thin protein filaments in sarcomeres interact to cause.... True or false, thick and thin filaments maintain their same length whether the muscle is relaxed or contracted?

8 0

2 years ago

To trace our maternal lineage, we observe mutations that have accumulated in our mitochondrial dna (mtdna). in the dna isolation

Sergio [31]

In the coding region, natural selection tends to eliminate all of the mutations because of the high importance these regions have. The coding region contains genes that synthesize proteins and the changes in the DNA sequence can have devastating effects on the cell. Therefore, there are very few differences in the sequences of coding regions that can help us trace the lineage.
On the other hand, in the non-coding regions, the mutations often accumulate because they have little effect on the cell and the adaptive value of the organism. This enables us to trace up the lineage by comparing the sequences and seeing the differences in the sequences.

4 0

3 years ago

14). During the early 1700’s, a small group of pacifist Protestants fled Germany to avoid religious persecution. This group, the

abruzzese [7]

A) In the Dunker population, the frequency of IB allele is 0.3 and the frequency of i allele is 0.4. In the general population, the frequency of IB allele is 0.1 and the frequency of i allele is 0.5.

If:
$I^{A}$ - the frequency of IA allele
 $I^{B}$ - the frequency of IB allele
 $i$ - the frequency of i allele

Then:
 $I^{A} I^{A}$ + $I^{A} i$ - the frequency of individuals with A blood type
 $I^{B} I^{B}$ + $I^{B} i$ - the frequency of individuals with B blood type
 $ii$ - the frequency of individuals with O blood type

Let's first take a look on the Dunker population:
$I^{A} = 0.3$
$ii=0.16
$

Since there is only one possible genotype for O individuals - ii - the frequency of the allele i is square root of the frequency of O individuals:
 $i= \sqrt{ii}$
⇒ $i = \sqrt{0.16}$
⇒ $i=0.4$

Now, we have the frequencies of two alleles ( $I^{A}$ and $i$ ). To calculate the frequency of $I^{B}$ allele, we will use the formula:
 $I^{A} + I^{B} + i = 1$
⇒ $I^{B} = 1- I^{A} - i$
⇒ $I^{B} = 1-0.3-0.4$
⇒ $I^{B} = 0.3$

Now, in the general population:
$I^{A} = 0.4$
$ii=0.25$

Similarly to the work for the Dunker population:
 $i= \sqrt{ii}$
⇒ $i = \sqrt{0.25}$
⇒ $i=0.5$

$I^{A} + I^{B} + i = 1$
⇒ $I^{B} = 1- I^{A} - i$
⇒ $I^{B} = 1-0.4-0.5$
⇒ $I^{B} = 0.1$


b) A founder effect is a result of geographical separation of a few individuals from the original population. Those founding individuals will form a new population. The Dunker population was not only geographically separated, but also genetically. The group interbreeding was present resulting in increasing those allele frequencies that were the most common in the founding population. In this case, the most individuals from the founding population had B blood type.

6 0

4 years ago

The particles in some system are moving around quickly. a few minutes later, the particles are moving, on average, more slowly.

dimaraw [331]

The change in motion affect the temperature of the system as the temperature of the system is lower now than it was initially. Faster moving particles result in a higher temperature for the system.

<h3>What is temperature?</h3>

It should be noted that temperature simply means the degree of hotness or coldness of a body.

In this case, the change in motion affect the temperature of the system as the temperature of the system is lower now than it was initially

Also, it should be noted that faster moving particles result in a higher temperature for the system.

Learn more about temperature on:

brainly.com/question/17053123

#SPJ4

The particles in some system are moving around quickly. A few minutes later, the particles are moving, on average, more slowly. How does this change in motion affect the temperature of the system? A. The temperature of the system did not change. The speed of the particles has no effect on the temperature, only the type of atom affects the temperature. B. The temperature of the system is higher now than it was initially. Slower moving particles result in a higher temperature for the system. C. The temperature of the system did not change. The speed of the particles does not affect temperature, the number of particles affects the temperature. D. The temperature of the system is lower now than it was initially. Faster moving particles result in a higher temperature for the system.

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1 year ago

List the three nutrients typically found in greater quantities in prenatal supplements compared to regular vitamin/mineral suppl

solong [7]

Iron, Calcium and Folate are the three nutrients typically found in greater quantities in prenatal supplements compared to regular vitamin/mineral supplements:

8 0

4 years ago