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makvit [3.9K]
2 years ago
8

What type of selection might occur in a population of beetles after a new predator is introduced into an ecosystem?

Biology
2 answers:
gladu [14]2 years ago
6 0

Answer:

Adaptive radiation

Explanation:

is the relatively fast evolution of many species from a single common ancestor. Adaptive radiation generally occurs when an organism enters a new area and different traits affect its survival. An example of adaptive radiation is the development of mammals after the extinction of dinosaurs.

Scrat [10]2 years ago
5 0
The answer is C because
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On which of these issues is public opinion less likely to affect policymaking?
11Alexandr11 [23.1K]

Public opinion is less likely to affect fiscal policy making.

There are a number of variables that affect the formulation of a country's fiscal policies, the most important being domestic demand and economic growth.

Public opinion is therefore not a relevant factor that affects the formulation of these policies, it affects more social and environmental policies, for example.

For a better understanding of fiscal policy, we must understand the concept of taxation.

Taxation is a financial obligation on individuals and organizations, whose main objective is to improve the economy and public services so that there is a fairer and more equal society.

Some examples of taxes:

  • Income tax
  • payroll tax
  • sales tax

Therefore, public opinion is more likely to affect the formulation of social and environmental policies than fiscal policies. Because it is capable of instituting new ideas and social awareness that can directly affect legislation.

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brainly.com/question/1114207

8 0
2 years ago
Which statement is correct about how lights travel
Mamont248 [21]

Answer:

1. Answer: Light can travel in a vacuum, and its speed is constant if the source is moving or stationary.  

Light travels at constant speed in vacuum even if the source is moving or stationary. If the source is moving, the apparent frequency/ wavelength changes.

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2 years ago
Paper chromatography is a technique used to separate molecules based upon their size and solubility in a particular solvent. If
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Answer:

a. Paper chromatography would separate the pigments into several bands that appear green or yellow/orange.

Explanation:

The primary or main pigment in plants is the chlorophyll. The chlorophyll gives plants their characteristics green colour and helps in the absorption of light during photosynthesis.

Other pigments in plants include carotenoid with its characteristic yellow, red or orange colour; anthocyanin with its re/blue colour and betalains with its red/yellow colour.

<em>Hence, if pigments from a particular species of plant are extracted and subjected to paper chromatography, one would expect the pigments to be separated into several colour bands ranging from green to yellow/orange.</em>

The correct option is a.

4 0
2 years ago
A model of cell division is shown here. A student evaluates the model and makes the claim that the cell division increases genet
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Chromosomes exchange genetic material in step 3.

<h3><u>Explanation</u>:</h3>

The meiosis is the type of cell division that takes place for gametogenesis. The meiosis has two phases - meiosis I and meiosis II.

The meiosis I has the events like crossing over and independent assortment which leads to the mixing of genes between homologous chromosome pairs and separation of homologous chromosome pairs. So the two cells that are produced from the meiosis I are genetically different. The step 3 shows the crossing over of prophase 1 of meiosis I. So, it shows the genetic difference between the offsprings and leads to genetic variation.

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3 years ago
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B seasonal variations in climate tend to increase with distance from the equator
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