The correct answer is c. Heterotrophs compete for the same food source.
As it can be seen from the image of the food web, the tree or plants which are autotrophs are consumed by various heterotrophs. Autotrophs provide as a source of food for several heterotrophs but several heterotrophs depend on other heterotrophs such as smaller insects or animals for their food. As shown in the food web, both frog and lizard are consumers of insects so both being heterotrophs are competing for the same source of food which is insect here.
After receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.
the must be sensory neurons.
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--erjayU
Answer:
Science and technology help each other advance. Scientific knowledge is used to create new technologies. New technologies often allow scientists to explore nature in different ways and make new discoveries. Examples of technologies that have helped science advance include the telescope and microscope.
Explanation:
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The answer is <span>B. secondary spermatocytes.
A diploid organism (2n) has 12 chromosomes (2n = 12) in its germinal cells. Spermatogenesis actually consists of mitosis and meiosis (the reduction division). It starts from spermatogonia (germinal cells) that are diploid. Through the mitosis, they divide into identical primary spermatocytes. As they are the result of mitosis, they are diploid (2n), too. However, primary spermatocytes undergo meiosis. After meiosis I secondary spermatocytes are formed and they are the first that are haploid (n) and have 6 chromosomes.
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Answer: Option D.
The transfer of the methyl group from adomet to an acceptor yields s adenosylhomocysteine.
Explanation:
S- adenosine methionine is a co substrate and one of the naturally occurring sulfonium ions in the body. It is synthesized from methionine which is abundant in animal derived protein. It is metabolised in the liver where it is converted to S adenosine methionine by the enzyme methionine adenosyltransferase. It involve the transfer of methyl group. It is use in medicine as alternative aid to reduce depression.
