Answer:
The trait is Y-linked
Explanation:
The only plausible explanation behind the inheritance pattern shown by the porcupine trait is that it is <u>Y-linked</u>.
<em><u>Y-linked traits are limited to the Y chromosome only</u></em><em>, a sex chromosome that is peculiar to only the male gender. Chromosomally, females are XX while males are XY. Hence, only the male gender has the genetic capacity to inherit the porcupine trait. This is why only the sons of Edward Lambert, and never the daughters, exhibited the trait. </em>
<h2>Savanna & tropical rainforest</h2>
Explanation:
- Savanna is a grassland biome which is found South America .it is a type of natural biome which is changes during seasonal pattern for examples- elephants,cheetahs, wildebeest
- It is here and there found in mild atmospheres, for the most part in zones that are transitional zones among grassland and forests.
- Tropical rainforests are forests in the tropics that get more than 100 crawls of precipitation every year.
- This unbelievable species extravagance is expected to a great extent to the blend of a tropical atmosphere and high, all year precipitation, which gives ideal developing conditions to the biggest number of plant species.
- The warm, wet conditions in the tropical rainforest cause quick disintegration of any waste, and on the grounds that daylight and water are abundant, any supplements discharged into the dirt are quickly utilized by the quickly developing vegetation, leaving the dirt incredibly poor thinking about the high efficiency of the biome as long as the backwoods stays flawless, supplements will rapidly burn through the environment.
Pros:
It is (mostly) based on pyrethrine spray which kills the
insects rapidly.
It not poisonous to other animals.
It uses synthetic, natural spray which is safe to use because
it breaks down within 10 minutes.
Te technique can reach tall forests.
It can be used in closed spaces ( greenhouses, basements
etc).
Cons:
It requires windless circumstances ( which is mostly at
nights).
Breathing fog may cause respiratory and throat irritation to
some.
The answer is they produce endospores.
Explanation:
The endospores are dormant, non-reproductive, tough bacterial spores that ensure the survival of bacteria in adverse conditions.
During the environmental stress, such as starvation, desiccation, radiation and chemical treatment many bacteria form dormant endospores. These endospores germinate again when the conditions become favorable.
Hence, if drought conditions lead the stream to dry up, the bacteria that live there would produce endospores to survive.
Answer:
Prezygotic barriers:
1. Habitat isolation
2. Behavioral isolation
Explanation:
Pre-zygotic barriers are the barriers which do not allow the formation of the zygote in the organisms.
The two mechanisms of the pre-zygotic barriers are the:
1. Habitat isolation: the Flycatchers do not share the same habitat which is also mentioned in the question that they live on different islands.
2. The behavioural isolation: the Flycatchers could have evolved the different mating rituals as a result of which the could not interbreed.
Thus, Habitat isolation and Behavioral isolation are correct.
