answer.
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
bixtya [17]
2 years ago
15

A scientist discovers a cell that has chloroplasts, cytoplasm, DNA, and a cell membrane. Which statement best describes how the

cell could be classified?
a).The cell is prokaryotic because it has DNA.
b).The cell is prokaryotic because it has cytoplasm.
c).The cell is eukaryotic because it has a cell membrane.
d).The cell is eukaryotic because it has chloroplasts.
Biology
2 answers:
irina [24]2 years ago
6 0

The right answer is d).The cell is eukaryotic because it has chloroplasts.

Chloroplasts (or plastids) are present in all eukaryotic plant cells (with the exception of some unicellular species that lack them). These are membrane-bound elements, located in the cytoplasm of the cell, containing chlorophyll and providing photosynthesis.

Since diatoms are unicellular organisms of a plant nature, they possess chloroplasts, the number of which varies according to the species from one to several tens, and which may have the form of grains, plates, bands or even stars.

Savatey [412]2 years ago
4 0
<span>D) The cell is eukaryotic because it has chloroplasts.
 
I hope this helps ya :) Let me know if you have any more questions in the future. I'd be glad to help x</span>
You might be interested in
1. Which force is being applied by a vendor when he is pushing the pushcart? *
marta [7]

Answer:

1. Muscular force

2. Speed decreases

3. higher than

4. decreases

5. air pressure

6. Inversely proportional to the area of contact

7. 20 N

8. 400 N / m2

9. 150 N

10. friction

Explanation:

1. During pushing the pushcart the person is required to use strength of his arms and legs muscles that will creat a force between the surfaces, hence the force used is muscular force.

2. The speed of car decreases while applying brakes because a friction is generated between the brakes and the wheel that reduces the kinetic energy of vehicle and decreases the speed of the vehicle.

3. The pressure of the water at the bottom of the pond is higher than at the surface of pond because water pressure increases with the depth of the water. Water pressure increases in the depth because weight of water over the body icreases as going deep.

4. At higher altitude the atomspheric pressure decreases because as the height in atmosphere increases the amount of  air molecules decreases and so, less oxygen for breathing.

5. Air pressure allows the dropper to fill inks as dropper exerts a force on a surface of ink and due to the low pressure inside the dropper sucks up the liquid.

6. Pressure is defined as the perpendicular force exerted at the surface or it means force per unit area. Pressure is directly proportional to the force and inversely proportional to area of contact.

7.  The boys exerts pressure in opposite direction on an object, hence the resultant force will be

   resultant force = force 1 - force 2 = 60N−40N=20N.

8. pressure (P) is equal to force (F) per unit area (A)

P =  F / A

    = 800 / 2

    = 400 N / m2

9. Pressure (P) = 300 Pa    

    Area of Cross-section (A) = 0.5 m²

    Force = P × A

               = 300 × 0.5

               = 150 N

10. Friction is the force that is always applied against or opposite to the moving direction of an object. Friction is responsible to stop the movement of any moving object such as vehicles and sliding objects.

Hence, the correct option of the questions are:

1. Muscular force

2. Speed decreases

3. higher than

4. decreases

5. air pressure

6. Inversely proportional to the area of contact

7. 20 N

8. 400 N / m2

9. 150 N

10. friction

7 0
1 year ago
When the body temperature becomes abnormally high, thermoregulatory homeostasis is maintained by __________?
Advocard [28]
Hypothalamus

When there is abnormally high internal temperature, sensors in the Central Nervous System send signals to the hypothalamus.  The hypothalamus initiates thermoregulation by sending messages to various organs and body systems with a various mechanisms. High temperature will set off sweating and vasodilation to cool down the body.


6 0
2 years ago
Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system. Cell bodies of sensory neuron
AlekseyPX

Answer:

True

Explanation:

Sensory neurons are the neurons present in the nerves which can convert the external stimuli into an electrical signal and can transmit the signals from the organs to the central nervous system.

The structure of sensory neuron in pseudounipolar that is at one end it has dendrites and another end transmits the signals to the CNS. The cell bodies  (nucleus) of these sensory neurons are located in the structures called ganglia located outside the CNS.

Thus, True is the correct answer.

7 0
2 years ago
Autonomic centers in the ________ exert neural control over hormone secretion by the adrenal medullae. a) pineal gland b) pituit
frez [133]

Answer:

The correct answer will be option-E

Explanation:

The autonomic nervous system or ANS activity in the brain is mainly controlled and regulated by the hypothalamus structure. The autonomic centres of the hypothalamus control the hormonal secretion adrenal medulla like adrenaline and norepinephrine.

The secretion of the hypothalamus controls the activity of the vasomotor center which help maintain the blood pressure.

Thus, option-hypothalamus is the correct answer.

3 0
2 years ago
Which of the following examples can cause gene flow between populations?
yanalaym [24]
The answer is <span>bird droppings that contain seeds from a different location.

</span><span>Gene flow includes a transfer of alleles from one population to another. So imagine a population of plant A on location 1 and another population of plant A on location 2. They cannot interchange their genes. But if birds drop seeds from location 1 and those seeds get to location 2, gene flow may occur.</span>
6 0
2 years ago
Read 2 more answers
Other questions:
  • Heterotrophs take in mass in the form of food. Food is either used to build molecules within the body or as fuel for cellular re
    6·1 answer
  • When an antigen is bound to a class i mhc molecule?
    12·1 answer
  • Dr. Bob hypothesizes that drug X causes cuts to heal more quickly. He performs a medical experiment on a group of 100 people and
    5·2 answers
  • Which activity is not associated with dna polymerases?
    8·1 answer
  • A client has just been served divorce papers from a spouse. the client has no financial resources and little social support. the
    6·1 answer
  • Destruction of forests can result in reduced rainfall and a drier climate in the deforested region. This is due to _____.
    9·2 answers
  • You discover that a new chemical compound interacts with K+ voltage-dependent channels. What would be the effect on a neuron if
    12·2 answers
  • Two mule deer lock antlers as they demonstrate strength and worthiness to a female mule deer . The winner of the Barthes will ma
    11·1 answer
  • While on a field trip near the ocean coastline, you visit a company that harvests jellylike substance from protists. This substa
    13·1 answer
  • A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!