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ch4aika [34]
3 years ago
9

A student visits the beach during a very hot day. She steps on the sand and jumps because it is so hot

Biology
1 answer:
Mama L [17]3 years ago
8 0

Answer:

A student visits the beach during a very hot day. She steps on the sand and jumps because it is so hot as a result of "conduction."

Explanation:

The process of the conduction happens because of the flow of kinetic energy from one molecule to the other by direct contact.  When she first steps the beach on the hot sand, after that the energy moves from the hot sand to the cooler body by conduction. While walking on the sand for few time, the feet will feel hot. The movement of the heat takes place from the hot sand to the bottom of the feet by conduction. When the objects come in contact with each other the heat transfers as a result of conduction.

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PLS HELP ASAP If an animal cell wasn't in an isotonic solution, wouldn't active transport be able to balance the cell's volume?
ohaa [14]

Answer:

Animal cells tend to do best in an isotonic environment, plant cells tend to do best in

a hypotonic environment. This is demonstrated in the attached PDF.

Explanation:

A cell that does not have a rigid cell wall, such as a red blood cell, will swell and lyse (burst)  when placed in a hypotonic solution, a process called cytolysis. Cells with a cell wall will swell when placed in a hypotonic solution, but once the cell is turgid (firm), the tough cell wall prevents any more water from entering the cell. When placed in a hypertonic solution, a cell without a cell wall will lose water to the environment, shrivel, and probably die. In a hypertonic solution, a cell with a cell wall will lose water too. The plasma membrane pulls away from the cell wall as it shrivels, a process called plasmolysis.

I hope this helps. If not I am really sorry!

Download pdf
7 0
3 years ago
Biology Grade 8
harkovskaia [24]

Answer:

cell=ova

plant=organism

tissue=group of similar cells

nose=organ

organelle=nucleus

5 0
3 years ago
Mycoplasma pneumoniae is a bacterium that lacks a cell wall. it causes atypical pneumonia. which antibiotic would be most effect
Vitek1552 [10]

In this case, it is given that <em>Mycoplasma pneumoniae </em>lacks cell wall. some antibiotics such as penicillin works by interfering the synthesis of the cell walls. As these microbes do not have cell wall, the penicillin like antibiotics would not work.

In this case, the antibiotics, which interferes with the DNA (deoxyribonucleic acid) formation and replication can work. The ciproflaxin is an antibiotic, which work by inactivating the enzyme required for DNA replication in bacteria. Hence, the antibiotic ciproflaxin would be effective for treating the given condition.

3 0
3 years ago
What type of conduction takes place in unmyelinated axons? What type of conduction takes place in unmyelinated axons? Continuous
Volgvan

Continuous conduction takes place in unmyelinated axon.

Explanation:

Based on the presence and absence of myelin sheath, the neurons had been classified as myelinated and non-myelinated neurons respectively.

In myelinated neurons the transmission of impulse takes place only at the non myelinated region called nodes of Ranvier. Due to this, the conduction in Myelinated neuron is saltatory.

The conduction in non-myelinated neuron takes place throughout the length of axon and it is continuous.

Saltatory conduction is faster than continuous conduction.

6 0
3 years ago
What are the monomers for each of the 4 biomolecules?
Elena L [17]

Answer:

protiens: amino acids

lipids: fatty acid and glycerol

carbohydrates: monosaccharides

nucleic acid: nucleotides

Explanation:

7 0
1 year ago
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