Answer:
The correct option is B
<u> Succession</u> refers to the process that facilitates plant communities gradually changing over a period of time in order to respond to their environment.
Explanation:
Succession can be described as changes that occur in an ecosystem in response to the changes in the environment or any other disturbances.
Succession can be of two types. 1. Primary succession 2.Secondary succession
Primary succession occurs on lands where there was no life before. With time, plants start to grow here and a community is developed.
Secondary succession occurs on lands that have been destroyed due to any disturbances like a flood or a fire. Over time, new plants start to grow on this land and a community is developed.
Answer:
All the offsprings will be black-furred (Bb)
Explanation:
This question involves a single gene coding for fur length in rabbits. The allele for black fur (B) is dominant to the allele for white fur (b). This means that a rabbit heterozygous for this gene (Bb) will have a black fur.
According to this question, a purebred black furred male (BB) is bred with a female that had the recessive white fur (bb). The parents will produce gametes as follows:
BB - B only
bb - b only
Using these gametes in a punnet square (see attached image), the genotypic proportion of the produced offsprings is as follows:
Bb, Bb, Bb, Bb
All Bb (heterozygous) means that all of the offsprings will be black-furred.
They are important because so people do not get sickness
Answer: crossing over
during the process of fertilization, a sperm and egg join together to create a zygote. since a sperm had half the number of chromosomes and an egg has half the number of chromosomes, when they join together the zygote had a complete diploid set of chromosomes. the assortment of chromosomes and crossing over promotes genetic variation during the process of reproduction
1. less solar energy
2. everything would be flipped, for example summer would be cold and winter would be warm.
