Answer:
Answer is a natural process.
Explanation:
The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. ... The absorbed energy warms the atmosphere and the surface of the Earth.
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Answer:
Vagus nerve
Explanation:
Vagus nerve is the tenth cranial nerve that can innervate in the neck, thorax and abdomen.
Thyroid gland is located below the neck region and releases thyroxine hormone. Vagus nerve innervates in the thyroid gland. Parasympathetic fibres of thyroid gland comes from the vagus nerve and symapthetic fibres is distributed in the superior, middle and inferior ganglia of sympathetic trunk of the thyroid gland.
Thus, vagus innervates in the thyroid gland.
This is referred to as: spontaneous recovery
Spontaneous recovery is a theory of learning and memory which involves unexpected and recurrence of a conditioned response after a period of reduced response or delay. Spontaneous recovery is associated with classical conditioning and operant conditioning. Extinction will happen quickly after a spontaneous recovery, if the conditioned and unconditioned stimulus is not connected.
Flowering plants are the best of all plant bunches as far as their assorted variety. This gathering is typically alluded to as angiosperms on the grounds that, as their name infers, their seeds are encased in a carpel.
The angiosperms are vascular seed plants in which the ovule is prepared and forms into a seed in an encased empty ovary. The ovary itself is typically encased in a blossom, that piece of the angiospermous plant that contains the male or female conceptive organs or both.
Answer: a. Genetic recombination (crossing over)
b. Can also be explained in terms of crossing over
c. Non disjunction of homologous chromosomes in meiosis 1
Explanation:
The process that allows for the transfer of both the paternal and maternal materials to is the crossing over process that takes at meiosis 1 changing them to secondary spermatocytes. While they are still primary spermatocytes, they are still diploid cells having both the maternal and paternal chromosomes. But since the spermatozoon is an haploid cell, it is able to retail some of both parents chromosome by the crossing over event which takes place between homologous paternal and maternal chromosomes allowing them to exchange materials. Thus the chromosomal contents of the primary spermatocyte differs from that of the spermatozoon.
C. This can occur as a result of the one of the homologous chromosome pair refusing to separate at meiosis 1 with one gamete containing 4 chromosomes/8 sister chromatids and the second having 2 chromosomes/4 sister chromatids.
