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IRINA_888 [86]
3 years ago
7

The Columbian Exchange All of these items followed the direction of the arrow EXCEPT A) measles. B) syphilis. C) tobacco. D) tom

ato.
Biology
1 answer:
Elenna [48]3 years ago
8 0

Answer:

B. Syphilis

Explanation:

Syphilis is a sexually transmitted disease. Historians has been arguing about this disease in relation to the Colombian exchange. Some argue that Christopher Columbus's crew carried it to Europe and it was a by product of Colombian exchange. Others propose that it has existed in Europe and was unrecognisable. The first outbreak of Syphilis occurred in Naples in 1495, three years after Columbus's voyage to Americas.

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A heterozygous round seeded plant (Rr) is crossed with a homozygous round seeded plant (RR).
igomit [66]
So I don’t see answer choices here, but your answer is 50% of the offspring will be homozygous dominant with RR, and 100% of them will carry a homozygous dominant gene of Rr

If you take the two sets and put them into a punnett square, it would look like this (image attached):

When the two sets of alleles are crossed, you would end up with half of your pairs being fully dominant (RR), and the other half being dominant while containing a recessive gene (Rr). Since there’s only one recessive gene in these pairs, it gets overridden and the pair itself is dominant.

So your answer is 50% will be homozygous dominant with RR!

7 0
3 years ago
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Elza [17]

Answer:

The liver

Explanation:

The liver both stores and manufactures glucose depending upon the body's need. The need to store or release glucose is primarily signaled by the hormones insulin and glucagon. During a meal, your liver will store sugar, or glucose, as glycogen for a later time when your body needs it.

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3 years ago
Hich of these is a chemical property? Compressibility Flexibility Malleability Toxicity
Gelneren [198K]
Toxicity is a chemical property
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3 years ago
Which feature separates hominids from other primates
noname [10]
Hominids have a larger brain. Other primates have smaller brains compared to humans, gorillas,chimps, and other Great Apes<span />
5 0
2 years ago
Cross bridge formation between myosin heads and actin molecules is caused by the elevation of calcium ion concentration in the c
almond37 [142]

Answer:

sarcoplasmic reticulum deteriorates and ATP production is stopped

Explanation:

Rigor mortis is the third stage of death characterized by stiffening of joints and muscles in body. The stiffening occurs because muscles are not able to return to the relaxed state. There are two reasons for rigor mortis, depletion of ATP and increase in calcium concentration in cytosol. Due to these factors the actin-myosin crossbridge is not able to break and the muscles remain in contracted state.

Sarcoplasmic reticulum deteriorates and calcium is released into the cytosol. Sarcolemma ( covering of muscle fiber ) also breaks down releasing extra calcium into the cytosol. Calcium is responsible for formation of actin-myosin cross bridge and when its concentration increases the bridge is formed continuously leading to stiffening of muscles and joints.  

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