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
Bond [772]
3 years ago
9

Beanie Eyelash is a celebrity who does not have a widows peak, while Chris Hemsworth is a celebrity who does. What is a widows p

eak an example of?
A single gene traits
B polygenic traits
C single allele genotypes
D polygenic genotypes
Biology
1 answer:
weqwewe [10]3 years ago
3 0
I believe the answer to this one is (A) Single Gene Traits. I searched it up and it says “Widow’s peak occurs when the hairline forms a distinct point in the center of the forehead. Widow’s peak is controlled by a dominant allele (W).”
You might be interested in
How can a species develope genetic diversity
xxTIMURxx [149]
Sexual reproduction results diversity
4 0
3 years ago
A microbiologist obtained two pure biological samples: one of a virus, and the other of a viroid. Unfortunately, the labels had
USPshnik [31]

The researcher could look for the presence of proteins, because viruses have a envelope (capsid) composed of proteins that involve their genetic material. The capsid may have a helical or icosahedral structure and is extremely regular. Viroids cannot synthesize any type of protein, so differentiation is possible.

5 0
3 years ago
Que es el sistema inmunologico?
AURORKA [14]

Answer:

Explanation:

El sistema inmune es una red compleja de células y proteínas que defiende al cuerpo contra las infecciones. El sistema inmune mantiene un registro de todos los gérmenes (microbios) que ha derrotado para poder reconocer y destruir el microbio rápidamente si ingresa nuevamente al cuerpo.

5 0
3 years ago
Cycle
nika2105 [10]

Answer:

<em>X Free nitrogen is in the atmosphere </em>

<em>Y Producers absorb nitrogen compounds through their  roots.</em>

Explanation:

Nitrogen is present in the soil. The plants take up nitrogen along with other minerals as they draw water from the soil. Nitrogen enters the soil when decomposers feed on dead and decaying matter. They breakdown nitrogen and release it into the soil. The plants take this nitrogen from the soil.

The area labelled X shows that nitrogen is present in the air. Nitrogen is one of the abundant gases which is found in the Earth's atmosphere.

7 0
3 years ago
Read 2 more answers
Climate changes cause a drought. There is no food to collect. To survive, the animals must become predators, catch and kill prey
slamgirl [31]

Answer:

This event is telling the evolution by natural selection. This is the directional selection where most adapted animals will survive. According to Darwin, the new species arise from a single ancestor due to variation.

It had also seen in the Finches. All the new species of Finches came from a pre-existing seed-eating Finch. When the environment was favorable the Finches were herbivore and feed on seeds.  

When the number of birds increases, there is a competition between them. Because the food source was limited. To prevent this competition  

some of them go for different foods like insects, fruits, etc.

This food habit change also changes their morphology and separate them from their ancestor.

Similar manner, when draught condition occurs, some of the seed-eating birds become carnivore to survive this new climate. As the environmental condition continues for a long time, the number of carnivore animals will increase in number.

Because due to drought conditions, the availability of seed will decrease. Thus the carnivore birds will be more in number and the herbivore birds will gradually eliminate, as they can't cope with the new climate.

6 0
3 years ago
Other questions:
  • What layer of an artery will be in direct contact with blood, as well as plaque?
    14·1 answer
  • Which of the following is the job of RNA?
    14·2 answers
  • Which qualities would be best for someone working in Support Services?
    14·1 answer
  • I need the answer someone help
    6·1 answer
  • which of the following scientific studies was made possible by the development of the light microscope
    8·1 answer
  • An operon encodes enzymes for making an essential amino acid and is regulated like the trp operon. Which of the statements is tr
    13·1 answer
  • Which of the following would most likely happen if the epithelial cells in the stomach failed to produce mucus?
    7·2 answers
  • Drag the appropriate labels to their respective targets. ResetHelp Site of filtrate formation. Site that drains the distal convo
    11·1 answer
  • What is friction А a force that slows an object down B a force that speeds an object up ca force that makes an object start movi
    6·1 answer
  • In order for the recessive gene to show up you must have
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!