One valid inference that can be made regarding the evolution of modern horses is that : Pliohippus had teeth adapted for grazing
<h3>Description of Pliohippus </h3>
From the information provided in the question The modern day horse resembling the pliohippus can be inferred to have teeth which is adapted for grazing just like the pliohippus.
The pliohippus evolved from the merychippus which is classified as a grazer. because of its longer/taller teeth the pliohippus was more adapted to grazing than been a browser.
Hence we can conclude that One valid inference that can be made regarding the evolution of modern horses is that : Pliohippus had teeth adapted for grazing
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The answer is b it occurs in plant animals and bacteria
Answer: the factors that increase cardiac output include:
--> Nervous stimulation and
--> Hypertrophy of the heart.
Explanation:
Cardiac output can be defined as the quantity of blood pumped into the aorta each minute by the heart. This is also the quantity of blood that flows through the circulation. There are factors that can cause increased cardiac output or that can lead to a hypereffective heart. They are:
--> NERVOUS STIMULATION: The combination of sympathetic stimulation and parasympathetic inhibition does two things to increase the pumping effectiveness or cardiac output of the heart. These include:
• it greatly increase the heart rate from the normal level of 72 beats/mum up to 180 to 200 beats /mom.
• it increases the strength of heart contraction, which is called increased contractility to twice it's normal strength.
--> HYPERTROPHY OF THE HEART: A long term increased workload, but not so much excess load that it damages the heart, causes the heart muscle to increase in mass and contractile strength in the same way that heavy exercise causes skeletal muscles to hypertrophy. This effect of increased muscle mass of the heart, allows the heart to pump much greater than usual amounts of cardiac output.
Answer:
The correct answer is "Fewer aquatic organisms live in coastal areas because the tides require organisms to constantly adapt to changing conditions".
Explanation:
There only few species of aquatic organisms that live in coastal areas because the tides require organisms to constantly adapt to changing conditions. Some adaptations of aquatic organisms living in intertidal zones include: ochre sea star adaptation to tolerate longer periods of time in contact with air, periwinkle snails secrete a gluelike mucus to avoid drying out when the tides are out, and some fishes like the tide pool sculpin can breathe air to survive when the tides are out.
Answer:
Explanation:
4. Hot water
5. Steam
6. Cold air
7. a dew type thing
those are the only ones i know. I hope this helps you!!
