<u>Answer:</u>
A: Less nitrogen and more phosphorus is required.
Fertilizer requirements changes in the above manner when a crop leaves the vegetative stage and enters the flowering stage.
<u>Explanation:</u>
The vegetative stage is the one when plant starts growing after germination. Plant develops foliage and flourishes. The process of photosynthesis is carried out, and collect different types of resources like CO2, nutrients, and lighting. These are needed during reproduction and flowering. Plants are more delicate at this stage than in the flowering stage.
The final phase of the plant growth is the reproductive stage or the flowering stage. The focus is the production of flowers, fruits, and seeds at this stage. Nitrogen is not at all required at this stage and plant needs other nutrients like Potassium and phosphorus at this stage.
If the alcohol concentration in PEA agar was increased, it would inhibit both Gram - and Gram + bacteria by breaking down membrane absorbency barrier, tolerating influx of substances that are generally blocked and leakage of cellular potassium. High alcohol concentrations would lead to disruption or halting of DNA synthesis in both Gram + and Gram - bacteria
Answer:
<h2>Many animals have adapted to the unique conditions of the tropical rainforests. The sloth uses camouflage and moves very slowly to make it difficult for predators to spot. The spider monkey has long, strong limbs to help it to climb through the rainforest trees.</h2>
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Answer:
D
Explanation:
The presence of homeotic genes shows that all of the listed organisms (mice, flies, humans etc) all evolved from a common ancestor.
(A) is wrong as the evidence of the same gene existing in vastly different species shows the evolutionary relationship between these organisms.
(B) is wrong as there is insufficient evidence to prove that flies are the precessor of humans. We do know that flies and humans have evolved from a common ancestor though.
(C) is non-conclusive as the passage said nothing about the gene allowing the species to have a higher chance of surviving and reproducing. Hence, an errornous claim.
(D) is the correct answer as from a common ancestor, all of the listed organisms undergo and accumulates mutation, undergoes selective pressures that resulted in divergent evolution (aka branching evolution that results in many noval species forming) after millions of years.
The number of phenotypes produced for a given trait depends on how many genes control the trait. Anyhow, The distribution of phenotypes for a typical polygenic trait can often be expressed as a bell-shaped curve.
Many traits are controlled by two or more genes and are, therefore, called polygenic traits<span>. Each gene of a polygenic trait often has two or more alleles. As a result, one polygenic trait can have many possible genotypes and phenotypes.</span>
