Are these in the correct order?

A hypothetical phylogeny for marsupial relatedness is shown here. Macropodidae is the marsupial family. Which of these statement

Darina [25.2K]

Answer: B and E

Explanation: USATESTPREP

3 0

3 years ago

Cephalopods have complex eyes that arose separately from vertebrate eyes that are also used in vision. what's this illustration

juin [17]

Options:

A. Analogous structures

B. Vestigial structures

C. Homologous structures

D. Missing links

Analogous structures is the illustration in cephalopod. Thus, the correct option is C.

A cephalopod eye, unlike a vertebrate eye, is focused through movement, similar to a camera or telescope lens, rather than altering shape like a human eye lens. The lens, which is totally internal, is nearly spherical, as is the eye.

<h3>What are the characteristics of cephalopod?</h3>

Organs. They have three hearts, two of which transport blood to the gills and the other which pumps blood throughout the body. Their blood is blue because the protein hemocyanin binds oxygen.
Color. Cephalopods have the ability to change the color of their skin at will. They can even use their skin to create elaborate patterns and forms. This is accomplished by the use of chromatophores, which are pigment-filled bags found in the skin. Nerves can change the color of the skin by controlling these chromatophores.
Diet. Cephalopods are all carnivorous animals.

Organs, tissues, or cells in the body that are no longer functional in their ancestral version of the trait are known as vestigial organs.

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5 0

2 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

Which of the following is not a type of asexual reproduction?

insens350 [35]

Answer:

Fertilization

Explanation:

Binary fission is when single parent cell doubles it’s DNA, then divides into two cells. (usually in bacteria).

Budding is the small growth on surface of parent breaks off, resulting in formation of two individuals. (ex: yeast)

Fragmentation is when organisms break into two or more fragments that develop into a new individual. (occurs in many plants and some animals like starfish)

7 0

3 years ago

The most common type of distribution pattern(s) in nature is(are) _______.

nekit [7.7K]

There are three simple types of dispersion: clumped, even or uniform and random.The most common type of dispersion is the clumped in which organisms are distributed in groups. This suggests that extensive interaction among individuals or other components of the environment

7 0

4 years ago

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