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
IgorC [24]
3 years ago
14

Which of these is a non-seed vascular plant?

Biology
1 answer:
Sergeu [11.5K]3 years ago
5 0
Fern is a non-seed vascular plant.
You might be interested in
Debido a la baja cantidad de calorías que utilizamos o quemamos en un día de trabajo
Delvig [45]

Answer: Se debe a que el cuerpo lleva a cabo funciones fisiológicas vitales que requieren energía.

Explanation:

Las calorías son unidades de energía aportadas por los alimentos que consumimos a diario. Puntualmente se define la cantidad de calor necesaria para aumentar en 1 grado centígrado a la temperatura de 1 gramo de agua desde 14,5 hasta 15,5. La principal fuente de calorías en los alimentos son los hidratos de carbono, luego le siguen las grasas y proteínas.

<u>Dicha energía hallada en los alimentos, es utilizada por el cuerpo para llevar a cabo distintas funciones fisiológicas vitales e importantes para que el organismo funciones correctamente</u>, como el bombeo de sangre del corazón, funcionamiento de los riñones o el actividad del cerebro, etc. Nos referimos a esto como el metabolismo basal, el cual es el valor mínimo de energía utilizada en reacciones químicas celulares para la supervivencia del organismo. Dicho metabolismo basal depende de diversos factores tales como la edad, peso, sexo, etc. Pero también, las calorías son necesarias para distintas actividades voluntarias como caminar o levantar algún objeto.

<u>Sin embargo, la forma de energía de las calorías de los alimentos es distinta a la forma de energía necesaria para llevar a cabo estas funciones fisiológicas tanto voluntarias como involuntarias.</u> Para ello, la energía de las calorías debe de convertirse a otra forma y esto ocurre comenzando primero con la digestión de los alimentos, donde luego sus nutrientes son absorbidos en el torrente sanguíneo para luego dirigirse a las células. En las mismas, ocurre un proceso llamado respiración celular, en donde se utilizan las calorías de los alimentos para sintetizar ATP (Adenosín Trifosfato), la cual es una molécula que almacena energía utilizable por parte de las células y que eventualmente impulsará y llevará a cabo todos los procesos fisiológicos y metabólicos.

Entonces, en el caso del trabajo de una oficina en el que las personas permanecen sentadas largas horas, sin mucha actividad, <u>igualmente necesitan consumir mas de 2.000 kilocalorías diarias ya que el cuerpo debe obtener esa energía para llevar a cabo las funciones de todos los órganos para mantenerlos vivos.</u>

3 0
2 years ago
1. Which cells of the pancreas are the endocrine cells? How were you able to differentiate these cells when viewing the slide? D
Arturiano [62]

Answer:

Explanation:

Endocrine cells in the pancreas are referred to as Islets of Langerhan. There are two major types; Beta cell that produce insulin and alpha cells that produce glucagon.

They are identified when viewed under slides based on their colour reactions with histological dyes. Tinctorial techniques that can be used to identify them under microscope includes; Mallory-Heidenhain azan trichrome, chromium hematoxylin and phloxine, aldehyde fuchsin, and silver impregnation methods.

Islets of Langerhan cells make up minority of the cell. Majority of them are for exocrine functions.

8 0
3 years ago
PLEASE HELP ME OUT WITH THIS REALLY HARD QUESTION,WHICH I NEED TO BE DONE BY TOMORROW !!!IF YOU KNOW THE ANSWER,PLEASE TELL ME I
blagie [28]
Experiment Title: Does soil pH affect the color of tomato fruits?

A. Thesis statement: A high soil pH yields red tomatoes.

Set up: 9 pots each filled with soil of varying pH will be used in this experiment. The pots will be assigned into three groups: The control group will contain soil that has a neutral pH, the basic group will contain soil that has a pH greater than 7, and the acidic group will contain soil that has  a pH lesser than 7.

The amount of water and sunlight received by the groups should be equal to eliminate other factors that could possibly affect the color variations. By keeping these factors the same, color variation would solely depend on the pH of the soil. 

Control Group: It is necessary to keep the soil pH of the neutral group to be exactly 7. By making it neutral, we would be able to know what the natural color is exhibited by the tomato fruits.

The dependent variable in this experiment would be the color exhibited by the tomato fruits. The color exhibited is believed to be dependent on the pH of the soil. By having three samples each with varying pH, it is expected that there will be color variation. 

Data Collection:
When the tomato plants bear fruits, determine the color of the fruits produced from each group. Create a table with two columns: the first column would be the group where the fruit belongs and the second column would be the color exhibited. Compare the data gathered from the three groups.

Data analysis:

A scenario which will support your hypothesis would be: the group which contained the basic soil produced red tomatoes. The neutral group produced orange tomato fruits while the acidic group produced yellow tomato fruits. It was found out that the higher the soil pH, the fruit color takes on a redder hue whereas if the pH keeps on going down, the fruit takes on a yellow a hue. 
7 0
3 years ago
Which of these is a biotic factor of an ecosystem?
luda_lava [24]
B, The bacteria that live in the intestine of a rabbit. Biotic creature are things that are living, breathing, and need food/water to live. Hope this helps!! & have a great day!!!
4 0
3 years ago
Read 2 more answers
What evidence did Mendel find that supported his law of independent
inn [45]

Answer:

It's B

Explanation:

Law of independent assortment stated that individual heredity factors assort independently during gamete production. the evidence that Mendel find that supported his law of independent assortment is : different traits are passed on independently of each other

3 0
3 years ago
Other questions:
  • How does attitudes and values influence effective communication
    5·1 answer
  • If _______ is not present, the Krebs cycle and electron transport system will not function.
    11·1 answer
  • Can recipients with blood type A or B receive a blood transfusion from a type O donor?
    7·1 answer
  • If the first child of a couple was without dimples, an recessive trait, what is the chance that the second child will be born wi
    6·1 answer
  • Which two layers of Earth are mainly composed of metallic elements such as nickel and iron, which are abundant in meteoroids and
    5·2 answers
  • Create a personal plan of preventative health and dental management. What steps can you take to maintain your health and wellnes
    14·2 answers
  • A cell with 12 chromosomes undergoes mitosis. How many daughter cells are
    7·1 answer
  • Please help me I’m having so much trouble with this
    5·2 answers
  • Please help I’m getting timed
    7·1 answer
  • How is life going for everyone talk to me mines is saf
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!