Answer:
Option 1.
Explanation:
r-selected species may be defined as the species that has higher growth rate, shows less parental care and the rate of survival of the off spring is low as compared with k selected species.
Black widow spiders have the ability to produce 1000 offspring. Their chances of survival are extremely low and only few species of black widow spiders survive. Hence, black widow spider is r-selected species.
Thus, the correct answer is option (1).
All the answers are written on the same page just in a different way look for them!
Answer: Viruses, although not living things, do show some characteristics that they are living. Because they can't reproduce by themselves (without a host), viruses are not considered living. They are made of proteins and glycoproteins like cells are. They contain genetic information needed to produce more viruses in the form of DNA or RNA.
They are acellular, that is, they contain no cytoplasm or cellular organelles. They carry out no metabolism on their own and must replicate using the host cell's metabolic machinery.
18 chromosomes would be in each of its gametes.
What are chromosomes?
the nucleus of most living cells contains a threadlike structure made of nucleic acids and proteins that carries genetic information in the form of genes.
There are 23 pairs of chromosomes in humans. The chromosome's distinctive structure helps to increase the integrity of the DNA while also keeping it securely packed with histone proteins to fit within the cell. For instance, a single cell's DNA will be 6 feet long when unraveled; from this, it is clear why each cell's nucleus needs to be packaged.
according to the given information:
number of chromosomes: 36
36√2 is 18
18 chromosomes would be in each gamete.
To know more about chromosomes:
brainly.com/question/3094097?
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A tiger is diurnal because it's awake during the day.
