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3 years ago

Which of the following is NOT an example of a pre-zygotic barrier?

Biology

1 answer:

EastWind [94]3 years ago

6 0

Answer:

isolating mechanisms The reproductive characteristics which prevent species from fusing. Individuals mate in their preferred habitat, and therefore do not meet individuals of other Genomic incompatibility, hybrid inevitability or sterility. show that there is little behavioural, mechanical, or post-mating isolation

Explanation:

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How much gravitational potential energy does a 7.3 kg rock have if it is sitting on the edge of a cliff that is 12 m high?

nordsb [41]

Answer:

The given data provided in the question is as follows:

Mass (m) = 7.3 kg

Height (h) = 12 m

Gravitational acceleration (g) = 9.8m/s²

We have given to find out the gravitational potential energy produced i.e

Gravitational potential energy (GPE) = ?

The standard formula for calculating GPE is given by,

$\mapsto\tt{m \times g \times h}$

$\mapsto\tt{7.3 \times 9.8 \times 12}$

$\mapsto\tt{71.54 \times 12}$

$\mapsto\tt{858.48}$

Thus, the value of gravitational potential energy is 858.48 J

3 0

2 years ago

Read 2 more answers

Match these types of types of tests to the correct results determined by them.

nirvana33 [79]

Answer:

Soil texture tests would be - determine the percentage of sand, salt, and cay in the soil

nutrient test test would be - determine the amount of plant nutrients available in the soil

Organic matter tests would be - determine the quantity of organic matter in the soil sample

pH tests would be - determine whether soil is acidic or alkaline

Explanation:

If you read each of the drag and drop boxes carefully then you can find some small hints like the word acidic that related o pH and nutrients would go with nutrients.

6 0

3 years ago

Black fur genotype or phenotype

fiasKO [112]

Answer:

Phenotype

Explanation:

Genotype would be something like homozygous recessive, heterozygous dominant, HH, Hh, hh (etc). It describes the genetical pattern in offspring.

Phenotype is the physical description, such as black fur, brown fur, long ears, short ears, indigo petals, white petals, (etc).

3 0

3 years ago

name the molecular bond present in carbohydrates that enables change in colour when using Benedict's reagent test

Helen [10]

Answer:

copper.

Explanation:

Benedict's solution is simple carbohydrates are heated, the solution changes to orange red/ brick red. this reaction is caused by the reducing property of simple carbohydrates. the copper (II) ions in the Benedict's solution are reduced to Copper (I) ions, which causes the color change.

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3 years ago

Which discovery did not contribute to cell theory

trapecia [35]

Credit for developing cell theory is usually given to two scientists: Theodore Schwann and Matthias Jacob Schneider. While Rudolf Virchow contributed to the theory, he is not as credited for his attributions toward it.

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3 years ago

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