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maksim [4K]
3 years ago
9

BO

Biology
1 answer:
kozerog [31]3 years ago
4 0

The correct answer is C. Controlled experiments

Explanation:

A scientific claim is a statement that describes or explains a phenomenon of the world. These statements can be proven as valid or invalid only through scientific experiments, which involve testing in controlled conditions the phenomenon. This is the only way because the scientific method should be followed. For example, if the claim is that humidity affects the growth rate of cacti. The researcher will need to use multiple cacti and use different percentages of humidity to prove if humidity increases or decreases the growth rate. Also, in this case, other factors such as nutrients in the soil, exposition to sunlight, etc. should be controlled to guarantee these factors are equal for all plants. According to this, the one that serves as evidence for the scientific claim is controlled experiments.

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14. According to Model 3. what is the stimulus and what is the response cuting childbirth
Deffense [45]

According to model 3. During the child birth the stimulus is baby pushes against the cervix and the response would be hypothalamus oxytocin to male uterine walls contract.

Explanation:

The first contractions of the stimulus (labor) pushes the baby towards the cervix that is the lowest part of the uterus. Normal childbirth is done by positive loop. A positive feedback loop is the change in body status than a return to homeostasis.

One of the best example for positive feedback system is child birth. During labor, a hormone called oxytocin is released which intensifies and speeds up contractions.

Child birth will eventually stop the stimulus and stop the child birth feed back loop.

6 0
3 years ago
Demyelination results from issues associated with myelin producing cells. What is an example of a myelin producing cell in the c
aivan3 [116]
<h2>CNS  </h2>

Explanation:

An example of a myelin producing cell in the CNS is oligodendrocyte

  • The major function of oligodendrocytes is the formation of myelin
  • Myelin acts as an insulator of axonal segments and is a prerequisite for the high velocity of nerve conduction
  • Larger axons form thicker myelin
  • During development, oligodendrocytes arise from precursors located in the sub-ventricular zone such as the sub-ventricular zone of the lateral ventricles for the cerebrum or the fourth ventricle for the cerebellum
  • In the spinal cord, oligodendrocytes originate from the ventral regions of the neural tube and in the optic nerve they migrate into the nerve from the third ventricle
  • It is the oligodendrocyte precursor cells which migrate to their destination where they then differentiate into the more mature oligodendrocytes
  • The proliferation of the oligodendrocyte progenitor cells is controlled by a number of growth factors released predominantly from neurons but also from astrocytes such as platelet derived growth factor (PDGF) or fibroblast growth factor (FGF)
7 0
3 years ago
What prevents wind from blowing in a straight line from the North Pole to the equator?
Veseljchak [2.6K]
"The Coriolis effect" is the one that prevents wind from blowing in a straight line from the north pole to the equator. The main reason for this effect is the spinning of our earth on its own axis. The earth spins faster near the equator than the poles. The reason is that the earth is wider near the equator. this causes the wind to deviate with the spin.


5 0
3 years ago
(04.01 LC) Which level of organization is formed from two or more different tissues that group together and perform a function?
Colt1911 [192]

The correct answer is the organ.  

The multicellular species are formed of various parts, which are required for survival. These parts are differentiated into the levels of the organization. There are five different levels, which are named as cells, tissue, organs, organ systems, and organisms.  

When two or more layers of tissue function together, they produce an organ. All the animals comprise vital organs, without which they cannot survive. These include the kidneys, liver, lungs, brain, and heart.  


8 0
3 years ago
Read 2 more answers
Anole lizards mainly eat small insects. Suppose an anole lizard saw a bright red butterfly and ate it, but was ill afterwards. F
Phoenix [80]

The answer is D. learned behavior.

A change in behavior of an organism takes place due an experience is called learning. Animals learn behavior in many ways. On such way is given the question that anole lizard ate bright red butterfly instead small insects which are its normal food and became ill. Anole lizard learned through experience that bright red insects are not its food. Thus, a learned behavior is one that an organism develops by encountering experience.    

6 0
3 years ago
Read 2 more answers
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