Answer:
the answer is A
Explanation:
i took this test and i got 100% on it so trust me
Answer:
C =m rna and d= dna thread
- The Venus Flytrap survives in subtropical wetlands, it is the environment the venus flytrap needs, for example on the east coast of the USA, Brazil and Argentina. This means the venus flytrap wants lots of sunlight and humid conditions.
- It also lives in places where there is a low mineral level in the soil, so it gathers these vital nutrients from catching and digesting insects.
- For reproductive purposes, the flowers of Venus flytraps usually grows on tall stalks far above the leaves. This adaption of the plant is made so the the insects pollinating the flowers do not get trapped in the leaves. This is an anatomical adaptation that affects the flowers and the stems.
Answer:
d. Species diversity
Explanation:
The species diversity can be measured by:
- Species richness: Refers to the number of species are inhabiting a defined area.
- Species abundance: Describe the distribution of the species abundance.
Species richness is the number of species present in a sample, within a community, habitat or microhabitat, ecosystem, landscape, region or any well-defined spatial unit. It is a metric for measuring biodiversity which simplicity and easy interpretation make it a standard metric. It is the simplest and straightforward measure of biodiversity. It is just a count of species, with no need for abundance data. In some cases, this can be the cause of criticism, as it ignores information about the species-abundance distribution.
Answer:
The correct answer is - In F2 generation we should get a 3:1 ratio of phenotypes. 3 curly dominant, 1 wild type recessive.
Explanation:
In the given case, the cross between pure-bred wild-type flies with pure-bred mutant (curly-winged) flies and it is found that in F1 generation all offsprings are curly wings which means curly wings are dominant over wild-type.
let assume w gene is responsible for wild type and W gene is responsible for the curly wings which is dominant over wild type
W W
w Ww Ww
w Ww Ww
now on self crossing
W w
W Ww Ww
w Ww ww
In f2 generation there are 75% chances of the curly wing and 25% chances of wild type or the ratio of phenotype would be 3:1
