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
pishuonlain [190]
3 years ago
6

It's about Natural selection and evolution. I REALLY need help ASAP!!!!

Biology
1 answer:
timofeeve [1]3 years ago
4 0

Answer:

1. Smog from the factories

2. The lighter colored moths

3. The darker colored moths

4. (see explanation)

Explanation:

The peppered moth originally had light wings with dark speckles, which blended in with the tree trunks they would land on. This kept them hidden from predators.

A genetic mutation was found in which some moths appeared with dark wings with light speckles. Predators could easily spot these moths, so there were much less of them.

During the industrial revolution, smog put into the air by new factories would cause the once light colored trees to be coated in black from the pollution.

Now, the light moths with dark speckles were more easily identified than their genetically mutated counterparts.

The dark moths with light speckles were now the ones that could camouflage with the tree trunks, and became the dominant variation as the light moths were being eaten more.

You might be interested in
A set of steps used to collect information and to<br> test a hypothesis is called
liq [111]

Answer:

I believe its Scientific Method

Explanation:

4 0
3 years ago
The blastocoel and blastopore are both found in the blastula stage of development.
Andreyy89

Answer:

False

Explanation:

Cleavage in zygote forms a hollow ball of cells known as a blastula. The blastocoel refers to the fluid-filled cavity present in the blastula stage of early embryonic development.

Blastula undergoes gastrulation during which some of the cells exhibit inward movement and form a sac. The blastopore refers to the opening of this sac present in the gastrula stage of embryonic development.

Blastopore of gastrula develops into the mouth in protostomes and becomes anus in deuterostomes.

6 0
3 years ago
Describe Okasaki fragments.
snow_lady [41]

Answer:

Okazaki fragments are short sequences of DNA nucleotides which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.

Explanation:

7 0
2 years ago
How does extinction reduce biological diversity on earth?
Natalka [10]
Extinction of species reduces the number of different species in ecosystems, hence lowering the diversity of living things.
4 0
3 years ago
What happens when potassium ions continue to enter into the neuron after generation of an action potential?
nadya68 [22]
As the action potential passes through, potassium channels stay open a little bit longer, and continue to let positive ions exit the neuron. This means that the cell temporarily hyperpolarizes, or gets even more negative than its resting state.
5 0
2 years ago
Other questions:
  • How much of Haiti’s forests have been cut down
    13·2 answers
  • During interphase, the dna appears as very long strands of dna known as what?
    13·1 answer
  • Consider the roles of valves and blood vessel walls in moving blood through the body. If you were given a piece of flexible tubi
    7·1 answer
  • What are the fatty acids that must be eaten in our diet?
    10·1 answer
  • By number one what two molecules enter the krebs cycle only to carry away high energy electrons
    5·1 answer
  • After a volcano erupts and destroys an ecosystem, a few organisms are able to begin growing from the decaying organic matter lef
    12·1 answer
  • What is the function of mitochondria in prokaryotes?
    15·1 answer
  • What<br> was photograph 51 ?
    8·1 answer
  • pls help me with this immediately!!! and pls give me the correct answer and don’t guess or leave a link.(i’ll be giving brainies
    8·1 answer
  • In the extrinsic pathway of stage 1 of the clotting mechanism, chemicals released from damaged tissues trigger the cascade of ev
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!