BIOLOGY HIGH SCHOOL

Which part of the cell membrane is polar and allows the cell to exist in water

Answers

Answer 1
Answer:

Answer:

The Phospholipid head which contains a phosphate group

Explanation:

The cell membrane contains phospholipids.

The Phospholipid bilayer is made up of phospholipids

Phospholipids consist of a hydrophobic tail (non-polar and is repelled by water)

It also consists of a polar head which is polar because it has a phosphate group which is negatively charged and therefore is hydrophilic (water-loving)
Answer 2
Answer: Phosphate groups are polar and allow the cell to exist in water.

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What is the path that earth takes called?

Answers

the path that earth takes is called orbit

Certain chest deformities prevent normal expansion of the chest. Explain why this makes ventilation difficult in terms of pressure and volume.

Answers

The lungs work by expanding and going back to their original size when you inhale and exhale. The rib cage also expands so the lungs can have more air inside and expand. Due to deformities, the rib cage might not expand and/or the diaphragm might not lower itself, which might lead to pressuring the lungs not to expand and having a lower volume of air inside. This leads to breathing difficulties.

What element has fewer valence electrons than magnesium

Answers

Any element in the first column of the periodic table. Hydrogen, lithium, sodium, and potassium are a few examples

23. How many total chromosomes are in a germ cell in the testis of this organism that is in Metaphase of Meiosis II?

Answers

There are 46 chromosomes in each cell at metaphase II in meiosis in humans. Normal human body cells each have 46 chromosomes. Prior to meiosis, the DNA replicates and each cell gets 92 chromosomes.

Final answer:

A germ cell in the testis in Metaphase II of Meiosis has 23 chromosomes.

Explanation:

In Metaphase II of Meiosis, the chromosomes line up at the equator of the cell and are ready to be separated into two daughter cells. Each daughter cell will receive half the number of chromosomes as the parent cell. In humans, the diploid number of chromosomes in a somatic cell is 46, while the haploid number of chromosomes in a germ cell is 23.

Therefore, in Metaphase II of Meiosis, a germ cell in the testis would have 23 chromosomes.

Learn more about total chromosomes in a germ cell in metaphase of meiosis ii here:

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The structure that is associated with perception and recognition of auditory stimuli, memory, and speech is portion of the brain labeledc. It is called the

Answers

It's called the temporal lobes

The primary auditory cortex in the temporal lobe Receives sendory information from the ears and secondary area process speech and words into something meaningful that we can understand

Temporal lobe is one of the 4 major lobes  of the cerebral cortex in the brain of mammals

Because _____ can be contaminated with botulism spores, it should never be fed to infants under 1 year of age. cow’s milk eggs honey strawberries

Answers

Children under a year old should never be given honey.
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