BIOLOGY COLLEGE

Which of the following is not true of water? a) it has cohesive properties
b) it is polar
c) it's evaporation helps regulate body temperature.
d) it is a relatively poor solvent

I'm thinking it's D. am I correct?

Answers

Answer 1
Answer: You are 100% correct when you say it is D, all other things are true except for the part about water being a poor solvent. Water is also called the universal solvent as many substances dissolve in water
Answer 2
Answer: You are not correct it is d

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Over a period of several years, a large hospital kept track of the number of births of babies displaying the trait achondroplasia. Achondroplasia is a very rare autosomal dominant condition resulting in dwarfism with abnormal body proportions. After 120,000 births, it was noted that there had been 27 babies born with achondroplasia. One physician was interested in determining how many of these dwarf babies result from new mutations and whether the apparent mutation rate in his area was higher than normal. He looked up the families of the 27 dwarf births and discovered that 4 of the dwarf babies had a dwarf parent. What is the apparent mutation rate of the achondroplasia gene in this population? Is it unusually high or low?

Answers

Answer:

In the population of the study, mutation in the achondroplasia gene is unusually high

Explanation:

In this population, the incidence of genetic mutation that leads to achondroplasia would be 6 children for every 30,000 births. In the general population, achodroplasia has an incidence of 1 per 30,000 births, which indicates that in this specific population, the mutation rate is high above average, which can be explained by a high prevalence of the gene in the population.

Achondroplasia is a genetic disease with inheritance of an autosomal dominant pattern and to suffer from the disease, only one copy of the defective gene is necessary.However, in recent years after several studies it has been possible to demonstrate that even achondroplasia could be generated even in new mutations in the germ cells of the parents.

I need help ! Can someone please help me out !

Answers

Answer:leo committed insurance fraud

Explanation:

The mitochondria a. Are the sites of oxidative phosphorylation.
b. Are a prominent structure in prokaryotic cells.
c. Possess their own DNA.
d. Are sites of ATP production.

Answers

Answer:

Option (a), (c) and (d).

Explanation:

The prokaryotes lacks the nucleus and the membrane bound organelles. Eukaryotes have well defined nucleus and the endomembrane  system is present in eukaryotes.

The main site of the oxidative phosphorylation is the mitochondria in case of eukaryotes. The mitochondria are known as semi autonomous organelle as it contains its genetic material. As the oxidative phosphorylation occurs in mitochondria, this is the main site of ATP production. The mitochondria is a membrane bound organelle and absent in case of prokaryotes.

Thus, the correct answer is option  (a), (c) and (d).

Answer:

The correct answer are

a. Are the sites of oxidative phosphorylation.

c. Possess their own DNA and

d. Are sites of ATP production.

Explanation:

Mitochondria are double membranous structures that are found in eukaryotes. These are structure present in almost all the eukaryotes. The process of aerobic respiration takes place in mitochondria.

Mitochondria have their own DNA which is smaller than nuclear DNA and are circular in shape like bacterial DNA.It is called the powerhouse of the cell because ATP synthesis takes place in mitochondria which provide energy to the cell.

The ATP is produced through the process of oxidative phosphorylation which occurs in the matrix and mitochondrial membrane. In oxidative phosphorylation, ATP is produced by energy released from the oxidation of NADH and FADH₂ molecules.

Therefore the correct answer is a,c, and d.

In what direction air in the southern hemisphere deflects due to coriolis effect?a.)left
b.)right
C)left and right
d.)neither left or right

Answers

Answer : a.) left

Air is deflected to the left in the southern hemisphere.
Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect.
Answer: left

Which of the following will not prevent many bacterial infections

Answers

The provided question is not complete as it lacks the appropriate choices for the answer, however, the correct choices are:

Which of the following will NOT prevent many bacterial infections?

a. allowing foods to cool completely before refrigerating

b. washing hands and surfaces with soap and water

c. storing food in a refrigerator

d. heating objects to very high temperatures

Answer:

The correct answer would be - allowing foods to cool before refrigerating.

Explanation:

Bacterial infections can be prevented by many processes such as washing hands with soap and water thoroughly for a minimum of twenty seconds. Storing food in the refrigerator helps the food to be fresh and infection-free from various microbes.

Heating the food, water, and tools to very high temperature helps in killing the bacteria present in these and leads to bacterial infection. Cooling the food before storing it in the refrigerator may cause bacteria to infect the food.

What is the layer of myelin that surrounds an axon called?Group of answer choices

1. Node of Ranvier
2. Perichondrium
3. Perimysium
4. Myelin sheath
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Answers

The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier. Since fat serves as a good insulator, the myelin sheaths speed the rate of transmission of an electrical impulse along the axon.

I think the answer is Nodes of Ranvier but I’m not sure. I hope this helped <3
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