Answer:
mutualism
Explanation:
Mutualism is a type of symbiotic relationship between two organisms in which both benefit and neither is affected negatively in any way.
Mutualism can be in the form of resource-resource when it involves an exchange of resources between the organisms, service-resource when a resource is being swapped for a service or, service to service when it involves exchange of services between the two organisms.
In this case, the clownfish offers protection service to the sea anemone while the sea anemone in turn also offers protection to the clownfish. This is a service-service mutualism.
Answer: A magnet has two poles that is north pole and south pole. From the directional property of the magnet, we know that whenever a magnet is freely suspended, it is always aligned along the north and south direction of the earth.
It can also be identified using a test magnet whose poles are already known. From attraction property of magnet, we know that unlike poles attract with each other and like poles repel each other. Therefore, the pole of unknown magnet that attract to the south pole of the known magnet will be north pole and the other will be south pole.
Thus, by freely suspending the magnet and by using a test magnet, the unmarked poles of the magnet could be easily identified.
Answer:
C. Genetic engineering.
Explanation:
Genetic engineering refers to the deliberate alteration or manipulation of an organism's genes or genetic material for practical purposes. This can involve various techniques such as inserting, deleting, or modifying specific genes to achieve desired traits or outcomes. Genetic engineering is widely used in biotechnology and has numerous practical applications in agriculture, medicine, and other fields.
Answer:
relative and absolute dating
Explanation:
Two methods of dating fossil fuels are -
a) Relative Dating and b) Absolute Dating
a) Relative Dating - In this method, unknown age of fossil A is determined by comparing it with the known age of fossil B via correlation . Such " fossils B" are known as index fossils. These index fossils belong to a specific age group.
Some common example of index fossils are -
brachiopods,
trilobites, and
ammonites
b) Absolute Dating - In this method, the age of rock is determined through radiometric dating methods. Here, instead of dating the fossil itself, the rock or volcano layer above and below the fossil is dated for determining a rage of date.
b. oxygen
c. the yolk
d. the shell
Answer:
c. the yolk is the correct answer.
Explanation:
The yolk part of the amniotic egg provides food for the embryo.
The yolk sac is present inside the egg and it provides nutrients to the developing embryo.
The yolk is the main source of nourishment for the embryo and carries all the fat.
The yolk part provides protein, energy, and water to the embryo.
yolk part becomes the umbilical cord through which food reaches the fetus and waste substances are removed.
it would be C the yolk because