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
arsen [322]
3 years ago
7

Los árboles de manzano de zonas templadas no florecen naturalmente en el trópico. Un agrónomo hizo el siguiente experimento para

estimular la producción de flores en los manzanos. A un grupo de estos árboles les quitó el 100% de las hojas y al otro grupo les quitó el 50% de las hojas. ¿Qué falta en este experimento para comprobar que la remoción de hojas es útil?
Biology
2 answers:
Airida [17]3 years ago
8 0

A este experimento le falta la prueba de base o de control. Buena suerte que tengas un gran dia

liberstina [14]3 years ago
6 0

Answer:

ingles por favor

Explanation:

You might be interested in
An air pressure of 1,005 millibars is equivalent to approximately how many inches of Mercury?
N76 [4]

1005milibars of pressure corresponds to 29.68inches of mercury.

Option D.

<h3><u>Explanation:</u></h3>

Mercury has a density of around 13.6gm/cc. Thus the pressure of inches of mercury will have a huge effect on the value. As far as bar is concerned, it's around the normal atmospheric pressure measured at sea level. Its around 1,00,000 pascals. So from converting a pressure at millibars to inches of mercury, we need to divide the value by a factor of 33.864.

So, pressure in milibars =1005milibars.

So, pressure in inches of mercury = 1005/33.864 = 29.68 inches of mercury.

6 0
3 years ago
This orgennelle is where proteins are made
valkas [14]
Ribosomes are the organelles of the cell which are involved in protein-synthesis (I. e. process of making proteins)
4 0
3 years ago
when measuring the blood pressure, the cuff is deflated until two consecutive beats are heard through the stethoscope. This meas
dem82 [27]

Answer: Systolic pressure.

Explanation:

Every time the heart beats, it pumps blood into the arteries, which are vessels through which blood circulates from your heart to your tissues with the oxygen and nutrients they need. Blood pressure is the force of the blood pushing against the walls of the arteries, and is highest when the heart beats, pumping blood, which is measured as systolic pressure (i.e., when the heart contracts). On the other hand, diastolic blood pressure refers to the pressure of blood in the artery when the heart relaxes between beats (i.e., when the heart relaxes). Since there are two types of pressures, blood pressure readings are given in two numbers, with the top number being the systolic pressure and the bottom number being the diastolic pressure.  

For example, if the systolic pressure measured in a person is 125 millimeters of mercury (mm Hg) and the diastolic pressure is 85 mm Hg, the blood pressure is recorded as 125/85.  

So, <u>the systolic blood pressure is registered with the stethoscope when the cuff is deflated.</u> When two heartbeats are heard, the pressure gauge reading is recorded. <u>When the heartbeat ceases, the cuff pressure is released and the diastolic pressure is measured at this time.</u>

4 0
3 years ago
For many years, scientists believed that almost all animal lineages burst into being during the Cambrian era (just after the end
frosja888 [35]

Answer:

Option (A)

Explanation:

The Precambrian represents the time period, right from the beginning of the earth to about 540 million years back. It is divided into 3 parts, namely the Hadean, the Archean and the Proterozoic. Throughout this geological time, vast changes have taken place on earth. The first life forms of about 3.8 billion years old, that existed on earth were the simple unicellular organisms, whose traces were only found at some particular places. These organisms were very small and are comprised of soft bodies, so they were affected by the earth's dynamic processes. The organisms in order to get fossilized must contain hard parts. Due to the presence of soft bodies, the organisms were not fossilized and so it took a long time to demarcate that the late Precambrian organisms were animal-like life.

hence, the correct answer is option (A).

6 0
3 years ago
What percentage of calories that you take in every day are consumed by your brains activity?
andreev551 [17]

Answer:

your brain consumes 20% of our daily intake calories,that's 400-500 for a man and 350-400 for a woman

6 0
2 years ago
Other questions:
  • Help solve this please I don't know how to do this
    8·2 answers
  • Specific characteristics that vary among individuals
    12·1 answer
  • Describe whale evolution
    7·1 answer
  • Insertion into the brain of a thin insulated wire through which an electrical current is sent that destroys the brain cells at t
    10·1 answer
  • A hawk has a genetic trait that gives it much better eyesight than other hawks of the same species in the same area. Explain how
    10·1 answer
  • What process describes the transfer of heat through matter by molecular activity?
    14·2 answers
  • You are told that an atom has 10 electrons how many protons does it contain
    5·1 answer
  • What’s a 631 in osmosis Jones
    9·1 answer
  • What is 4 in 5 which is following false?
    7·1 answer
  • A solution that is 100 times less acidic than a solution that is pH 2 would<br> have a pH of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!