Answer:
Magnetic reversals
Explanation:
When the Earth's magnetic field reverses, a new stripe, with the new polarity, begins. Such magnetic patterns led to recognition of the occurrence of sea-floor spreading, and they remain some of the strongest evidence for the theory of plate tectonics.
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Hematite is a mineral that is made of Iron and Ore and has a Crystal Shape.
Answer:
The question lacks options, the options are:
A. moisture content of seed must be at least 9%
B. Moisture content of the seed must be less than 9%
C. certain enzymes in the seed are activated
D. temperature must be above 80 degrees
E. temperature must be below 80 degrees
The answer is A
Explanation:
Germination is practically the very first step of every seed-producing plant. It is the process whereby seeds sprout or begin to grow. Germination requires certain conditions to be met in order to occur. This conditions include presence of moisture in the soil etc.
The water is absorbed by the seed helps to soften the seed coat, which protects the seed from damage. The seed coat ruptures, causing the emergence of growth structures from the seed. In general, seeds need water to activate their dormant physiology. Hence, the moisture content of the seed must not be lower than 9%.
Answer:
1/64 = 0.015625
Explanation:
Genotype of parents: aa bb Cc Dd Ee x aa Bb Cc dd Ee
To calculate the frequency of the child with desired genotype, individual frequency of desired genotype can be calculated followed by application of product rule.
aa x aa = All aa
bb x Bb= 1/2 bb: 1/2 Bb
Cc x Cc= 1/4 CC: 1/2 Cc : 1/4 cc
Dd x dd = 1/2 Dd: 1/2 dd
Ee x Ee= 1/4 EE: 1/2 Ee: 1/4 ee
Expected frequency of the child with desired genotype= 1 aa x 1/2 bb x 1/4 cc x 1/2 dd x 1/4 ee = 1/2 x 1/4 x 1/2 x 1/4 = 1/64 = 0.015625
