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
Margarita [4]
3 years ago
15

A scientist studies a species of duck. the male and female are about the same size. the females are brown, and the males are a b

right mix of blue, white, and green. what can the scientist conclude about these ducks?
A. the females compete for mates.
B. the males choose mates.
C. the males compete to fertilize.
D. the females choose mates.
-apex
Biology
2 answers:
jeka57 [31]3 years ago
8 0

Answer:

Option D, the females choose mates

Explanation:

This is a common way to fertilize in animals where male put in efforts to allow the female to choose their partners. Here, in this case the male ducks are of different bright colors thus they would compete among themselves to attract the female ducks for mating. Therefore, a female duck gets the opportunity to choose the best partner for itself. This is a way of natural selection to fertilize.

Hence, option D is correct.

bonufazy [111]3 years ago
5 0

Answer:

d

Explanation:

You might be interested in
How many veins and arteries are present between the maternal and the fetal circulatory system by the fifth week of pregnancy?
NemiM [27]
One vein and Two arteries are present. 
8 0
3 years ago
If the motion of the particles in the
melamori03 [73]

Answer:

Go down

Explanation:

Because the motion of the particle in the room stop

7 0
3 years ago
Answer because I'm behind X.X
postnew [5]

I believe it is 'white fur' because living in the Tundra means it is snowing. Snow is white, so basically, the white fur is specifically for the Tundra.

I hope it helps.

5 0
3 years ago
What portion of the nervous system controls digestion?
agasfer [191]

Answer: Peripheral System

Explanation:

8 0
3 years ago
Read 2 more answers
What happens in the postsynaptic neuron when excitatory neurotransmitters bind to receptors?
zubka84 [21]

Answer:

it causes the depolarization of the target cell

Explanation:

Glutamate is an excitatory amino acid neurotransmitter that binds to specific receptors on the surface of target cells and thus causes its depolarization. During glutamate-mediated depolarization, the difference in charge inside and outside the cell is lost due to the entry of sodium and calcium positive ions into the postsynaptic cell (neuron) through specific ion channels. Moreover, glutamate binding also leads to the exit of potassium ions from the cell, thereby resulting in excitation. Through this mechanism, glutamate regulates many signaling pathways, such as those involved in memory, learning, emotions, cognition, motor control, etc.

6 0
3 years ago
Other questions:
  • What are the differences among hormones, enzymes, and vitamins?
    15·1 answer
  • Define herbivore, carnivore, omnivore, detrivore, and decomposer
    15·1 answer
  • Lisa was wearing her lab coat, closed-toed shoes, and gloves, and she had her hair pulled back. She wore her contacts to class,
    13·1 answer
  • Which statement about nuclear fission is correct? produces very little energy produces a lot of air pollution requires large amo
    11·1 answer
  • . Evergreens are plants that maintain their leaves in all seasons and include trees such as
    8·2 answers
  • During DNA replication, the DNA molecule combines into two strands. Please select the best answer from the choices provided
    5·1 answer
  • 5. _______ is the process where plastic-eating fungi are sent to landfills.
    11·2 answers
  • How can biotic and abiotic factors affect the size of a population? Give an example of a biotic and an abiotic factor that could
    8·2 answers
  • Possible question and essays for gr 12 Life Scences​
    10·1 answer
  • Help ASAP please fast I need help
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!