Answer:
Option C, a watershed
Explanation:
A catchment area also known as water shed is a parcel of land where all streams combine to form one single stream. These numerous stream combine into one single stream in order to drain into a common/single drainage point i.e either a sea or ocean. It is also known as a drainage basin. Along with river streams, water from from all different precipitation mode with in a region also drain into the single stream in a watershed
Hence, option c is correct.
Answer:
A scientific theory refers to the possible explanation of the natural event. It can be tested repeatedly and can be verified by anyone with the help of predefined sets of protocols and scientific experimentation.
Similarly, Darwin proposed the idea of natural selection as the mechanism of evolution.
Various experiments in labs, as well as observations made under natural conditions, proved that natural selection plays a major role in the evolution.
Examples may include industrial melanism of peppered moths, long neck of Giraffe, different shapes and sizes of beaks of Darwin finches et cetera.
This is why natural selection is considered a theory now.
Answer:
It is a fact and not a theory
Explanation:
A scientific theory is some natural phenomenon that has been tried and tested several times and backed by logical and testable observations and hypotheses in a way that in future anyone can test it. It is not a guess or hunch but a concept explained with logic and backed by solid unvarying proofs.
In case of biological evolution, observations have been made and tested several times so that no more further testing or trying is required. Hence, by this logic evolution can be considered as a fact but it can not be considered as a theory.
B. shape.
C. concentration.
D. size.
1.Describe the organism (physical appearance, habitat, function, history, etc.).
2.Draw or find a graphic that represents your organism.
3.Detail the organism's method of reproduction:
asexual or sexual
type of gametes
method of fertilization
advantages and disadvantages of the reproduction type
Explanation:
sexual reproduction: Sexual reproduction is the creation of a new organism by combining the genetic material of two organisms. There are two main processes during sexual reproduction: meiosis, involving the halving of the number of chromosomes, and fertilization, involving the fusion of two gametes and the restoration of the original number of chromosomes.
asexual reproduction: any form of reproduction that involves neither meiosis nor fusion of gametes
TrueFalse
Answer:
- 2.90
Explanation: