There are five mechanisms involve in diversity of organisms:
genetic drift, mutation, natural selection, gene flow and non random mating.
Explanation:
Genetic drift: It is a mechanism in which frequency of the allele changes within a population due to random sampling. It causes decrease in diversity in organism and can result in new species.
Mutation: Mutation in the genes is the most important reason of diversity.the change in DNA causes introduction of new alleles. Harmful mutations do not le species evolve by delimiting them from reaching sexual maturity.
Gene flow: The allele flow happens when a new gene is introduced into a population either by immigration or random mating. when two populations of same species share genes, variation occurs.
Natural selection: The favourable traits for survival are transferred to the offspring. It allows them to adapt better to the environment. It allows maintenance diversity of organism.
Non random mating: The mating between the individual with varied genotype will result in genetic variation.
The correct answer is - A) Swamps tend to be humid while deserts tend to be dry.
The swamps are places that are dominated by shallow, murky waters. The precipitation at these places is relatively high, and the climate tends to be pretty stable throughout the year, being relatively warm. Because of the precipitation, the water surface, and the temperatures, the swamps tend to be very humid places.
The deserts are the total opposite. They are dry all year round, with maybe one or two days in the year where precipitation will occur, though occasionally that may be once every several years. Depending on the type of desert, the climate is either very hot all year and very dry, or very hot in the summer and very cold in the winter and dry.
Answer:
pressure of the gas inside the lungs will be =1.35 atm
Explanation:
so for calculation of pressure of gas we will use the formula
(remember to convert *C to kelvin)
PV₁/T₁ = P₂V₂/T₂ As we know that Temperature = 310.5 k =37 degree
so for pressure P₂
P₂=P₁V₁T₂/T₁V₂
= ((1.00atm)(2.20L)(310.15K))/ ((298.15K) (1.70L)
=1.35 atm
(remember to convert *C to kelvin)
The correct answer iare A. All organisms have had one common ancestor in the past, and C. Gorillas share an extinct ancestor with bonobos.
Explanation
The image shows an evolutionary tree that resulted in species such as the chimpanzee, orangutan, gorilla, bonobo, and humans. This tree shows nodes, which are the points shown on it. These nodes represent an extinct species as a common ancestor of the species of the next node that are connected to it. Therefore, the correct answers are A. All organisms have a common ancestor in the past, this statement is true because all the species shown in the tree are the result of different divisions of a first species that lived 13 million years ago. The second correct statement is C. Gorillas share an extinct ancestor with bonobos. Because in the graph it can be seen that 6 million years ago there was a node/species that is the common ancestor of the gorilla and the bonobo.
) and other is heterozygous dominant
) and other carries recessive or mutated gene (
).
