Answer:
A sewing needle floats when it is placed gently on top of water in a bucket - surface tension
Water molecules ding to plant cell walls - adhesion
A water strider runs across a pond without breaking the surface - surface tension
A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface - cohesion
Water molecules cling to the side of a beaker - adhesion
Water molecules are attracted to each other - cohesion
Explanation:
The surface tension refers to the tendency of the surface of a liquid to remain unbroken by an external force due to the cohesive property of the molecules of the liquid. Instead of being broken, the surface of the liquid stretches like an elastic membrane.
The adhesive property of a liquid, also known as the force of adhesion, refers to the property of the molecules of the liquid to stick to other molecules while cohesive property or cohesion refers to the property of molecules of liquids to stick to themselves.
Hence,
<u>Surface tension</u>
- A sewing needle floats when it is placed gently on top of water in a bucket.
- A water strider runs across a pond without breaking the surface.
<u>Cohesion</u>
- A drop of water spilled on a table forms a drop on the table, rather than spreading out over the surface.
- Water molecules are attracted to each other.
<u>Adhesion</u>
- Water molecules ding to plant cell walls
- Water molecules cling to the side of a beaker
Answer;
Increase in cancers related to sun exposure
The implication that the destruction of the stratospheric ozone layer have for earth is the increase in cancers related to the exposure to the sun.
Explanation;
The stratospheric ozone is important as it blocks the harmful UV radiations of the sun. This ozone is present as the ozone layer in the stratosphere.
Destruction of the stratosphere means the destruction of ozone layer will cause the UV rays to enter the earth.
These radiations from the sun are fatal for life on earth since they may cause cancer which may lead to deaths.
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1. The genetic material is a good evidence of evolution because it's been conserved through time but with some slight differences.
Another important aspect is the </span><span>mitochondria.</span><span> The mitochondria resulted from a symbiotic relationship
between bacteria and pre-eukaryotes. Explaining why the </span><span>mitochondria looks like a bacteria and has </span><span>bacterial DNA.
2. specialized cellular modifications:
There are cellular modifications happening in multicellular organisms. That means, they have different types of cells, with different functions and will express different characteristics. For example:
- </span><span>Nerve
cells have
dendrites which is important to receive the electrical signal from another neuron, other cells don't have that.
- Sperm cells have a tail ( </span><span><span><span>flagellum) in order to swim through the vagina and no other cell has that.
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100% or all the males will express mutant allele.
Human X and Y chromosomes, with XX indicating female and XY indicating male, establish a person's biological sex. The Y chromosome is substantially shorter and has a lot less number of genes than the X chromosome, but they do share a minor region of similarity that allows them to mate during meiosis.
What is X-linked ineheritance:
- A pair of sex chromosomes—XY in men and XX in females—determine biological sex in humans and other mammals.
- X-linked genes are those that are found on the X chromosome. Males and females (XX) have different numbers of X-linked genes, which results in distinct inheritance patterns (XY).
- Due to the X-linked inheritance pattern, X-linked human genetic disorders are much more prevalent in males than in females.
Learn more about the X-linked ineheritance with the help of the following link:
brainly.com/question/14665388
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Answer:Cytokinesis occurs during mitosis
Explanation:
