1answer.
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
klasskru [66]
3 years ago
8

Multiple Choice New species arise when a. a portion of the population becomes isolated from the remainder of the population and

experiences different selective pressures. b. living organisms can arise from non-living matter and that the type of organism formed depends on the type of non-living matter DNA controls the activities of the cell by specifying what proteins are to be synthesized. c. chloroplasts and mitochondria evolved from small prokaryotes that were consumed by a larger eukaryotic cell. d. all living organisms are composed of cells and that a cell is the smallest unit considered to be living.
Biology
1 answer:
Mandarinka [93]3 years ago
8 0

Answer:

a. a portion of the population becomes isolated from the remainder of the population and experiences different selective pressures

Explanation:

This is an example of allopatric speciation Allopatric speciation is a form of speciation (formation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations  reach a high level  of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

New populations evolve as result of mutation, genetic drift and natural selection.

For example, Galapagos finches are isolated from others by the ocean (geographic isolation).  Because of the isolation, the finches don’t breed with one another. So, they developed unique characteristics and became endemic.

You might be interested in
Why do different individuals of the same species have different traits?
deff fn [24]

Individuals of the same species have different traits because they have different genes which code for different proteins. B would be the correct option.

<h3>Variations</h3>

Organisms of the same species can have different traits due to a difference in their proteins.

Genes are responsible for proteins and proteins are an expression of traits. Thus, with different proteins come different traits.

Hence, once there is a difference in the DNA sequence of organisms, different proteins will be produced, and different traits will be expressed.

More on variations can be found here: brainly.com/question/17598399

#SPJ1

3 0
2 years ago
Jupiter has no _______, while Uranus, with a spin axis tiled 98 degrees, has the most extreme ones.
Kamila [148]

Answer:

The correct answer is

Option C. Season.

Explanation:

Jupiter has no seasons, while Uranus, with a spin axis tiled 98 degrees, has the most extreme ones. Tilting of planets are responsible for season. If there is very low tilting, the seasons are not present. In jupiter the tilting is very low that is 3 degree so that's why jupiter has no seasons. In earth, the seasons are present due to high tilting i. e. 23 degree.

6 0
3 years ago
How do rocks form and change
Liono4ka [1.6K]

Answer:

Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water. Crystallization, erosion, sedimentation, and metamorphism transform one rock type into another or change sediments into rock. The rock cycle describes the transformations of one type of rock to another. The process by which a rock changes form or mineral content as a result of environmental changes such as heat and pressure. a rock that was altered by metamorphism.

3 0
2 years ago
Can a poultry bird lay more that one egg in a day​
SIZIF [17.4K]

Answer:

yes

Explanation:

It depends upon the fertility of the bird.When a poultry bird is raised the farmer provides the bird with food supplement with other vitamins and some leafy vegetables.This enables the good growth and fertility rate and capability is increased through it.Hence,A poultry bird can lay more eggs in a day.

<em>Keep</em><em> </em><em>smiling </em><em>and</em><em> </em><em>hope</em><em> </em><em>u</em><em> </em><em>r</em><em> </em><em>satisfied </em><em>with</em><em> </em><em>my</em><em> </em><em>answer</em><em>.</em><em>Have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em> </em><em>:</em><em>)</em>

5 0
2 years ago
What happens to contraction of a muscle cell if some of the Ca2+ that was released during a contraction is still in the cytoplas
Kazeer [188]
<h2>Muscle contraction in cytoplasm </h2>

Explanation:

  • Calcium stays in the sarcoplasmic reticulum until discharged by an improvement. Calcium at that point ties to troponin, causing the troponin to change shape and expel the tropomyosin from the coupling destinations. Cross-connect stick proceeds until the calcium particles and ATP are never again accessible.
  • ATP is basic to get ready myosin for official and to "revive" the myosin.
  • When the actin-restricting destinations are revealed, the high-vitality myosin head overcomes any issues, framing a cross-connect. When myosin ties to the actin, the Pi is discharged, and the myosin experiences a conformational change to a lower vitality state. As myosin consumes the vitality, it travels through the "power stroke," pulling the actin fiber toward the M-line.

4 0
3 years ago
Other questions:
  • In a particular zoo the population of spider monkeys has a higher proportion of individuals with light golden brown fur than spi
    9·1 answer
  • Which process is BEST represented by the following chemical equation?
    13·1 answer
  • what is the most important responsibility of individual in creating a safe environment especially on public health. ​
    6·1 answer
  • What is a chemical element?
    10·1 answer
  • BRAINLIEST ANSWER!
    10·1 answer
  • How long do leopards live?
    13·2 answers
  • HELP ASAP Which of the following are NOT decomposition reactions. Check all that apply. A. 2SO3(g)⇒2SO2(g)+O2(g). B. K2CO3(s)⇒+C
    13·1 answer
  • WILL GIVE BRAINLIEST!!! FORENSIC SCIENCE
    13·1 answer
  • Which enzyme is used to break down bacteria, yeast, and other microorganisms?
    11·1 answer
  • Give an example of a dry climate.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!