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viva [34]
3 years ago
10

Refer to the cladogram shown above. The

Biology
2 answers:
Gnom [1K]3 years ago
8 0

Answer:

The correct answer is B.C

Explanation:

A cladogram is a diagram used to show the evolutionary relationship between different species and used to find out their most common recent ancestor that means from whom they are evolved or descended.  

Each node represents the common ancestor which descends into two branching lines. These two branching line shows the two descendants from the same common ancestor. So each node represents the common ancestor.  

Therefore in this question, C is the most recent common ancestor for species 4 and A is the most recent common ancestor for species 1 but A and B is can not be an ancestor of species 4 because number 4 species have descended earlier than 3, 2, and 1 species as shown in the cladogram.

As number 1 species is the last descendent so it has all A,B, C and D as its common ancestor but 4th species has only C and D as its common ancestor. So as C is the most common recent ancestor of species 4, therefore, the most common recent ancestor for species 1 and 4 is C.  

Therefore the correct answer is B.C

Vlad [161]3 years ago
7 0

Answer:

i'm like 100% positive its answer  A

Explanation:

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From the right atrium through the tricuspid valve to the __(1)__ through the __(2)__ valve to the pulmonary trunk to the right a
atroni [7]

Answer:

Circulatory system

Explanation:

From the right atrium through the tricuspid valve to the right ventricle through the pulmonary sigmoid valve to the pulmonary trunk to the right and left lungs to the capillary beds of the pulmonary veins to the left atrium to the left ventricle of the heart through the mitral valve, to the aorta through the aortic semilunar valve, to the whole body, to the systemic arteries, to the capillaries of the body tissues, to the systemic veins, to the superior cava vein and inferior cava vein, which enter the right atrium of the heart.

8 0
3 years ago
Alkaptoneuria is a recessive genetic disorder found among North American populations at a frequency of about 1 in 500,000 births
Dafna11 [192]

Answer:

The correct answer is - 1/41,493

Explanation:

Let assume the frequency of the two possible same allele genotype (dominant and recessive) in an inbred population is p and q. Then the frequency of heterozygotes (H) is denoted as:

2pq + 2pqF.  ( where F is the inbreeding coefficient).

The frequency of the two different hoozygotes in inbred population can be calculated as:

p2 + pqF and q2 + pqF. (Where p and q are the allele frequency of the dominant and recessive phenotype.

Given: Frequency of Alkaptonuria (q 2) = 1:500, 000

=> q = 1/707

p = 706/707 ( Approx values)

solution:

Inbreeding coefficient (F) = 1/64

Therefore,

Frequency of Alkaptonuria in second cousins= q 2 + pqF

= 1/500, 000 + (706/707 x 1/707) x (1/64)

= 1/500, 000 + 1/45, 248

= 1/41,493 (approx)

5 0
3 years ago
How do organisms acquire the energy they need to live?
Elena-2011 [213]

Answer;

Organisms capture energy from the environment.

Explanation;

-Organisms Capture & Store Free Energy for Use in Biological Processes.

Autotrophs capture free energy from physical sources in the environment.

-Photosynthetic organisms capture free energy present in sunlight.

-Chemosynthetic organisms capture free energy from small inorganic molecules present in their environment, and this process can occur in the absence of oxygen.

Heterotrophs capture free energy present in carbon compounds produced by other organisms.

-Heterotrophs may metabolize carbohydrates, lipids, and proteins by hydrolysis as sources of free energy.

-Fermentation produces organic molecules, including alcohol and lactic acid, and occurs in the absence of oxygen.

6 0
3 years ago
Read 2 more answers
Several eggs are immersed in salt solution for two weeks. Suggest why the eggs are still rotten?
krok68 [10]

Explanation:

the eggs seems to be rotten because when we add enough salt into water the density of water becomes greater than that of egg ,hence the floats and seems to be rotten

3 0
3 years ago
The idea that rocks from over long period through the slow geologic processes is called ___ ?
Salsk061 [2.6K]
Hello!

The answer to your question, "the idea that rocks form over a long period through the slow geologic processes is called ___", would be gradualism. 

Hope this helps, and have a great day! :)
6 0
3 years ago
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