answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nirvana33 [79]
2 years ago
11

A population of finches experiences a drought where all of the normal food types disappear leaving only ant hills that certain f

inches with thin beaks can access. Over time, almost all of the population has a similar long sharp beak. This is an example of:
Biology
1 answer:
saw5 [17]2 years ago
8 0

Answer:

This question lacks options; the options are:

A) Artificial selection

B) Stabilizing selection

C) Disruptive selection

D) Directional selection

The answer is D) Directional selection

Explanation:

Changes in the environmenal condition affects the distribution of organisms phenotypes. Via this change, organisms with certain traits are naturally selected. The types of natural selection are; stabilizing, disruptive and directional.

Based on the description of the selection in this question, the type of selection is DIRECTIONAL. Directional mutation is that in which one of the two extreme phenotypes in a population is selected against while the other is favored by the occurrence of a natural environmental hazard. The distribution gradually shifts to favour one extreme over the other until the other unselected extreme gets extincted.

This is the case regarding a population of finches affected by drought caused by flood causing all their food source to disappear leaving only ant hills that certain finches with thin beaks can access. This environmental change favorably selects one extreme phenotype (finches with long thin beaks). Hence, a type of DIRECTIONAL selection

You might be interested in
Tissue found in the brain that contains ____________ cells is called nervous tissue. layers of closely packed cells that are fou
asambeis [7]
Neruron is neuropipet compounds Amino acids
8 0
2 years ago
Which feature is not the result of a glacier carving out rock as it moves
Kryger [21]
<span> The feature which is not the result of a glacier carving out rock as it moves is

</span><span>A. Terminal Moraine
</span><span>
The feature  which is the result of a glacier carving out rock as it moves is 
</span>A. Roche Moutonnees

Explanation
:
 Rôche moutonnée (or sheepback) could be a rock formation created by the passing of an ice mass. The passage of ice mass ice underlying bedrock usually leads to uneven erosional forms as a result of abrasion on the "stoss" (upstream) facet<span> of the rock and plucking on the "lee".
</span>
A terminal ground<span> </span>conjointly referred to as finish ground<span>, </span>could be a form of ground<span> that forms at the snout (edge) of an </span>ice mass<span>, marking its </span>most<span> advanced. At </span>now<span>, </span>rubble<span> that has accumulated by plucking and abrasion.</span>
6 0
2 years ago
Read 2 more answers
In a PCR reaction, a few seconds at high temperature disrupts the ____ that hold the two strands of DNA together, so every molec
Andrews [41]

Answer:

Hydrogen Bonds

Explanation:

In the polymerase chain reaction (PCR) the temperature rises to 90 ° C - 95 ° C, to break the hydrogen bonds, which are the types of bonds responsible for pairing the two strands of DNA, this process is known as denaturation of DNA.

The DNA is extremely stable, due to a large number of bonds (hydrogen bonds) that form between the two strands. If the temperature decreases, these bonds will begin to recompose, until the DNA returns to its original state

7 0
2 years ago
According to the ipat model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish ________
Natalka [10]
<span>According to the ipat model, technology that enhances our acquisition of minerals, fossil fuels, timber, and ocean fish increase environmental impact.
IPAT is a model or equation which expresses that 
I (stands for Environmental impact) is the product of three factors: P (stands for population), A (is affluence) and T ( for Technology). 
IPAT can be written as  (I=PAT) or I = pxAxT</span>
8 0
2 years ago
Starch molecules are too large to pass through the
mario62 [17]

Answer:

4

If the beaker was not cleaned, starch could have been in it.

8 0
2 years ago
Read 2 more answers
Other questions:
  • How many organisms depend on the squid as a source of food?
    8·1 answer
  • A fish has a head 9 inches long. the tail is equal to the size of the head plus one half the size of the body. the body is the s
    13·1 answer
  • If natural selection has no foresight, how can it explain features that seem to prepare organisms for future events? for example
    11·1 answer
  • Which of the following represents the correct flow of air into the lung of a mammal?
    13·1 answer
  • Since llamas have sexual reproduction, the offspring have the potential to be genetically diverse. How can genetic diversity be
    6·1 answer
  • There are three major types of cells in the lymphoid tissues of the body. One category, the ____________, contains immunocompete
    5·1 answer
  • A haploid species has a gene on chromosome 2 which codes for lactase. In nature, four different alleles of the lactase gene have
    5·1 answer
  • Based on the results of the mouse coloration case study, suggest another hypothesis researchers
    6·1 answer
  • Is DNP and cyanide an inhibitor of cellular respiration?
    14·1 answer
  • Drag each label to the correct location on the chart.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!