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
Ivan
4 years ago
15

Directional selection only occurs in response to naturally occurring events.

Biology
2 answers:
Anika [276]4 years ago
8 0

Answer:

False.

Explanation:

Directional selection is a form of natural selection and occurs in response to the existence of extreme phenotypes in a population and not in response to naturally occurring events.

An example of directional selection can be seen when a population of flies has small, large and medium-sized individuals. Larger flies are easily hit by spraying insecticides. Thus, small flies have a great advantage over large and medium flies. In this way, small flies are more likely to survive and reproduce, causing a directional selection.

vaieri [72.5K]4 years ago
6 0

Answer:Answer by JKismyhusbandbae: This is false.

Why: Selection and variation is a process that happens more slowly and happens more gradually. The selection and variation is hard to notice over a short period of time. This change is slow, constant and consistent.

Explanation:

You might be interested in
Problem: What type of energy does a toy car have when it is pushed by a child? A.heat energy B.light energy C.mechanical energy
Naily [24]
The answer would be C. mechanical energy
3 0
3 years ago
Read 2 more answers
Who wrote the origin of continents and oceans
sergij07 [2.7K]

Answer:Alfred Wegener

Explanation:He searched the scientific literature for geological and paleontological.

6 0
3 years ago
If a plant cell had a mutation such that the cyclic electron flow is observed at a much higher rate, which photosystem is most l
Ksenya-84 [330]

If a plant cell had a mutation such that the cyclic electron flow is observed at a much higher rate, which photosystem is most likely mutated such that energy is absorbed at a lower rate?

PSI

PSII

Answer:

PSII

Explanation:

Non-cyclic phosphorylation involves both PSI and PSII. The process starts with the splitting of water and excitation of electrons of the reaction center of PSII upon the absorption of solar energy at the wavelength of 680 nm. Any mutation in PSII would not allow the non-cyclic phosphorylation to occur when only cyclic phosphorylation would occur. The process of cyclic phosphorylation includes only PS I. Its reaction center absorbs maximum light at 700 nm and is cycled back while supporting ATP synthesis. Therefore, if a plant performs cyclic phosphorylation at a higher rate and absorbs less energy, this means that mutation was in PSII.

7 0
3 years ago
PLEASE HELPP!
NISA [10]
Answer is D.

Waste products from metabolism are carried by the circulation to the kidneys, which filter them out if the blood to be excreted in urine.
8 0
3 years ago
Whats the best answer
White raven [17]
The answer is that it gives them shelter
4 0
4 years ago
Read 2 more answers
Other questions:
  • View the animation below, then complete the quiz to test your knowledge of the concept. conducting of the heart
    7·1 answer
  • Any organism in which the dna has been altered using recombinant dna technology is considered a genetically modified organism. a
    9·1 answer
  • Which of the following is extrusive? <br><br>Magma <br>Lava <br>Laccolith <br>Batholith
    10·2 answers
  • What is the temperature of the sun
    6·1 answer
  • HELP??????????????<br> ????
    10·1 answer
  • WILL GIVE BRAINLIEST!!!!!
    7·2 answers
  • PLEASE ANSWER FAST WILL MARK BRAINLYEST THIS IS DUR IN A HOUR
    13·2 answers
  • Mention the non-living and living characteristics of viruses?
    12·2 answers
  • Summarize the steps of glycolysis using the key terms ATP, ADP, NAD+, NADH, glucose, and pyruvate.
    15·1 answer
  • Please help I am so far behind Omar is researching and taking notes to write a biography about George Washington Carver. What ca
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!