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stepladder [879]
3 years ago
10

Which of the following provides the most conclusive evidence that organisms of two different species share a common ancestor?

Biology
2 answers:
Andrei [34K]3 years ago
5 0
The answer is A. They have similar DNA sequences, That is the only way to determine if they share a common ancestor. It´s all in the blood.
Dovator [93]3 years ago
3 0

Answer:

The answer is a)They have similar DNA sequences

Explanation:

All similarities reflect the existence of a common evolutionary ancestor. All living beings carry the following: They have the same DNA; The same or very similar DNA; the same gene expression; The same amino acids. These shared peculiarities suggest that living beings descended from a common ancestor. All living organisms carry these characteristics because they were inherited from that ancestor

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One way to determine the density of animals in an area is to use the mark-recapture technique. A number of individuals from a po
NNADVOKAT [17]

Answer:

N = 187.55

Explanation:

Here you just need to replace the terms and clear the equation.

You already know that,

  • First capture: 25 prairie dogs.
  • First marked animals: 25 (the whole first capture)

You let these animals leave and then you made another capture.

  • Second capture: 135 prairie dogs
  • Already Marked animals: 18 (these 18 dogs were caught in the first capture and marked before releasing them)  

To know the size of the prairie dogs population you just need to use the following equation and clear N, which is the value that you are looking for.  

Number of individual marked in first catch/Total population size, N = Number of individual marked in 2nd catch / Total number of 2nd catch

  • Number of individual marked in first catch = 25 dogs
  • Total population size, N = this is what we want to know
  • Number of individual marked in 2nd catch = 18 dogs
  • Total number of 2nd catch = 135 dogs

So now, we need to replace terms

25 / N = 18 / 135

25 / N = 0.1333

N = 25 / 0.1333

N = 187.55

4 0
3 years ago
Which substances are most used as building blocks of in the synthesis of lipids
swat32

Fatty acids

Explanation:

Fatty acids are the building blocks in the synthesis of lipids. Lipids are built on repeating fatty acids units.

  • Many esters occurs naturally in plants and animals.
  • Such as fats and oils, waxes, phospholipids and glycolipids.
  • These groups of compound are called lipids.
  • Fatty acids are alkanoic acids and when they combine with alkanals produce esters.
  • They are made up of the carboxylic acid functional group.

Learn more:

lipids brainly.com/question/5094081

#learnwithBrainly

5 0
3 years ago
A carbon atom can bond with other atoms in a variety of ways. Wich set of bonds would a typical carbon atom in a compound
notsponge [240]

Answer:

A carbon atom can form up to four covalent bonds as one carbon atom has four valence electrons (in outermost shell). It is a fact that the number of valence electrons in a atom determines the number of covalent bonds it will form. Thus, each electron in carbon atom is used to form four covalent bonds with various four atoms.

Explanation:

A bond between a carbon and hydrogen atom is a non-polar covalent bond. The non-polar covalent bond are the bonds between two atoms which share equal number of electron(s) with each other. Example: as in case of methane, where one carbon atom shares its 4 outer valence electrons with four hydrogens by sharing equal number of electron.

In contrast, polar covalant bond are the bonds between two atoms which share unequal number of electron(s) with each other. Thus these bonds are partially ionic.

6 0
3 years ago
Why is it important to identify signs of stress early?
Pani-rosa [81]
<span>Stress can lead to many dangerous diseases and puts unnecessary pressures o your body</span>
6 0
3 years ago
What's a trait that can possibly mask another trait
Evgen [1.6K]

Answer:

recessive

Explanation:

8 0
3 years ago
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