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mihalych1998 [28]
3 years ago
11

Fossils _____.

Biology
1 answer:
vagabundo [1.1K]3 years ago
5 0
I would personally go with D or B

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RideAnS [48]
The kidneys respond by returning less salt to the blood 
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3 years ago
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Your classmate will be doing a presentation on evolutionary medicine in science class. What is he likely to discuss?
Svet_ta [14]

Your friend will talk about the definition of evolutionary medicine, and there by understanding the health and diseases

Explanation:

  • Evolutionary medicine is the understanding the health and diseases using the evolutionary theory
  • Evolutionary theory gives an idea of the heritable and morphological changes in the organism.
  • Today, the field of research on evolutionary medicine is advanced to the molecular and psychological mechanism of health and diseases.
  • Hence, your friend will talk about the evolutionary understanding of the health and diseases from the lens of the evolution of species. To create an understanding of the evolutionary medicines there need to ab understanding of the heath and diseases of previous ages.
8 0
3 years ago
Which of the following is true of rods?
Alex17521 [72]

Answer: A - Rods are more numerous than cones

Explanation: Rods are found everywhere in the retina except the fovea (a tiny pocket in the retina where just about all of the cones are located).

B. The macula lutea is another word for fovea, no rods are found there.

C. Rods are utilized in low-light conditions and are not <em>sensitive</em> to wavelengths of light.

D. Cones are responsible for perceiving color and not rods.

E. The main function of the rods is to help us see in low-light conditions (scotopic vision), so this answer would be incorrect.

8 0
1 year ago
Caffeine aids in the movement of calcium ions across cell membranes by both making it easier for the Ca2+ channels to open and b
Llana [10]

Caffeine cause dose dependent prominent increase in force of contraction and period of contraction of muscle

<u>Explanation:</u>

Caffeine is widely used in foods and drinks. Its long time use can effect central nervous system include lethargy memory, sleep disorder and anxiety.

Increase in concentration of calcium ion will result increase number of power stroke and force for contraction.  However latent period and relaxation period are unaffected by caffeine. Increase in concentration of calcium ion will result increase number of power stroke and force for contraction.

Because of calcium ion release in skeletal muscle, caffeine causes peripheral manifestation such as hyper-reflexia, muscle twitching etc.

High amount of caffeine leads to increase in release of Ca2+ from sarcoplasmic reticulum. It increases tension development in single tetanic contraction and re-initiate maximum tension in fatigue single myofibre by restoring Ca2+ release from sarcoplasmic reticulum to non-fatigued levels.

8 0
3 years ago
I already did the rest, I just need an explanation on Phillip being the father or not.
Dmitry_Shevchenko [17]
Phillip is the father as the baby has a heterozygous blood type B which is IBI in order for this to have happened the IB part would have came from the baby’s mom and the I or blood type O part would have came from the baby’s dad. However because blood type O is recessive blood type B is dominant and is show.
5 0
3 years ago
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