Answer:
usatestprep answer is D) mutant
Explanation:
Mutant individuals, or those that carry genetic abnormalities, often supply the variety that is necessary to survival of a population. It is the variation in genetic code which gives some individuals a unique advantage - larger capacities, ability to resist disease, etc.
photosynthesis and nitrification
solar energy capture and re-radiation
evaporation and precipitation
2 The biological role played by a species in its environment is called a:
ecosystem
habitat
niche
population
3 Predators rarely kill and eat all available prey because:
predator and prey species often occupy the same trophic level in an ecosystem
prey species often lack protective mechanisms to deter being eaten
many predator and prey species have a commensalistic relationship
predator species often will switch its prey as one prey species becomes less abundant
4 _____ is an overabundance of nutrients that leads to excessive plant growth and
reduction of oxygen in an ecosystem.
denitrification
eutrophication
nitrification
phosphorylation
5 Which of these biomes receives the greatest amount of yearly rainfall?
boreal forest
grasslands
temperate forests
tropical forests
6 An organism's position within a food web is known as its:
ecosystem
habitat
niche
trophic level
7 Which of the following describes organisms in a pelagic zone?
plankton floating near the ocean surface
bottom-dwellers on the ocean floor
barnacles glued to stone in an intertidal zone
frogs in a pond close to the pond's edge
8 Which of the following is NOT an example of secondary succession?
farmland is abandoned
a forest is clear cut
a lava flow covers the landscape
a wildfire burns away the vegetation on a hillside
9 In a lake, the epilimnion is the:
environment found close to shore in a lake
environment found at the lake bed
lower, colder layer
upper surface layer
Answer:
the answer is C
Explanation:
i dont need to expalin
B.Gene flow usually increases the genetic differences between two populations.
C.According to natural selection, organisms with poor adaptations will never reproduce.
D.Since genetic drift is random, it does not always favor the "healthier" or "better" organisms.
The correct answer is option D, that is since genetic drift is random, it does not always favor the better or healthier organisms.
A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.
Answer:
The answer is option D.
Explanation:
A component of development in which the frequencies of alleles of a populace change with ages due to examining blunder is known as hereditary float. It happens in every one of the populaces of non-limitless size, be that as it may, its persuasions are most grounded in little populaces.