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
jek_recluse [69]
3 years ago
8

Which is not one of darwin's four main ideas of natural selection?

Biology
1 answer:
tiny-mole [99]3 years ago
4 0
The answer is letter A. evolution always improves organisms. Darwin did not state this idea because he observed that even if evolution happened to species, there were some species that failed to adopt on the new environment. The other choices are his ideas of natural selection which states that an organism can survive if it has heritable traits that can adopt with the environment.
You might be interested in
Increase the mutation rate with radiation or chemicals.
MakcuM [25]

Answer:

Use chemicals to prevent chromosomal separation during meiosis in plants.

8 0
3 years ago
Read 2 more answers
Can yeast replace itself with new cells
ollegr [7]

Answer: Yes

Explanation:Most yeasts reproduce asexually by budding: a small bump protrudes. A few yeasts reproduce by fission, the parent cell dividing into two equal cells.

6 0
3 years ago
Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogou
Liono4ka [1.6K]

Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogous to a human

B. putting more red blood cells into circulation when atmospheric oxygen levels decline.

<h3>What are stomata?</h3>

The stomata are apertures in the epidermis, each bounded by two guard cells. There are small openings on the lower surface of the leaves. These pores are called stomata. Loss of water from the stomata creates an upward pull, that is suction pull, which helps in the absorption of water from the roots. That is helpful for the transpiration process. They help in exchange for gases. Any of the tiny pores or openings in the epidermis of leaves and young stems are referred to as a stomate, sometimes known as a stoma, the plural of which is stoma or stomas. On the underside of the leaves, stomata tend to be more numerous. They enable the exchange of gases between the atmosphere outside and the leaf's branching network of interconnected air canals.

To learn more about  stomata, Visit;

brainly.com/question/28212270

#SPJ4

8 0
2 years ago
_____ is when a force is exerted on an object and the object moves a distance in the direction of the force.
andriy [413]
Hey there!

<span> _____ is when a force is exerted on an object and the object moves a distance in the direction of the force.

Answer: Work

Hope this helps
Have a great day (:
</span>
7 0
3 years ago
Read 2 more answers
The administration method that takes the longest time for the drug to reach the brain is __________.
photoshop1234 [79]

Oral ingestion or swallowing is the administration method that takes the longest time for the drug to reach the brain. When using this method, the drug is swallowed through the mouth, moves to the stomach and then into the bloodstream before it can be transported to the brain. This means that it takes longer for a swallowed drug to start functioning than it does with other methods of administration such as injecting.






4 0
3 years ago
Other questions:
  • Which cell is the precursor to eukaryotic in evolution of the cell
    13·1 answer
  • Why are volcanoes and volcanic activity a good example of system interactions?
    13·1 answer
  • An area in a forest was cleared to build a road. Which two of the following will be likely effects on the ecosystem?
    12·2 answers
  • You have found a new prokaryote. What line of evidence would support your hypothesis that the organism is a cyanobacterium? You
    6·1 answer
  • Which of the following is characteristic of gymnosperms?
    6·1 answer
  • How does hibernation help bears survive? I need this for a science grade.
    10·2 answers
  • Chymotrypsin is a digestive enzyme that breaks down proteins in the small intestine. A student runs a computer simulation of chy
    12·1 answer
  • Negative feedback: If the body temperature is high, the rate of perspiration (sweat) should
    11·2 answers
  • Images that you see in your peripheral vision are not as sharp as those directly in front of you because: there is a higher conc
    9·1 answer
  • Which statment describes the relationship
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!