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3 years ago

ENERGY IN THE ECOSYSTEM QUESTION 15 POINTS.

Biology

2 answers:

LuckyWell [14K]3 years ago

5 0

Answer:

Decomposers break down the dead organisms and other organic wastes and release inorganic molecules back into the environment. Food chains and food webs are diagrams that represent feeding relationships as well as energy pyramids. They model how energy and matter move through different ecosystems.

Explanation:

Alenkasestr [34]3 years ago

4 0

Decomposers break down dead organisms and other organic wastes and release inorganic molecules back to the environment. Food chains and food webs are diagrams that represent feeding relationships. They model how energy and matter move through ecosystems

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What would be the ploidy of the viable gametes produced by a tetraploid individual if nondisjunction of all chromosomes occurred

sattari [20]

Answer:

Tetraploid

Explanation:

Ploidy:

Ploidy is a biological term used for the presence of number of chromosome sets in a cell. Cells can be haploid (gametes), diploid (two chromosomal sets) and polyploid (more than two chromosomal sets).

Polyploidy:

A condition that entails the possession of more than two sets of chromosomes in the cell. Normal cells are diploid (2n) i.e they contain two sets of chromosomes, one from each parents. Polyploid individuals contain three (triploid, 3n), four (tetraploid, 4n), five (pentaploid, 5n) number of chromosomes and so on.

Under normal disjunction of chromosomes, a tetraploid cell will produce two diploid daughter cells each with two sets of chromosomes.

However, in the case of non-disjunction of all chromosomes in a tetraploid individual, two tetraploid daughter cells will be produced at the end of meiosis 1.

Non-disjunction of all chromosomes means that one daughter cell has received all 4 sets of chromosomes while the other is null i.e. contains zero chromosomal sets.

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2 years ago

WHICH OF THE FOLLOWING MECHANISMS OF EVOLUTION USUALLY CAUSES AN INCREASE IN GENITIC DIVERSITY WITHIN A SPECIES

larisa [96]

Adaption usually. A great example of adaptation, or natural selection is Darwins finches.

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3 years ago

Dr. jones is interested in how human behavior may be genetically inherited from remote ancestors, such as chimpanzees. her field

klio [65]

Dr. Jones' filed is evolutionary psychology.

Scientists from his filed are trying to find answers for human behavior by examining the behavior of our close primate relatives (great apes like chimpanzees, gorillas, and orangutans). This field integrates the knowledge of evolutionary biology and modern psychology.

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2 years ago

Read 2 more answers

Which of the following is a major inhibitory neurotransmitter? A. acetylcholine B. glutamate C. norepinephrine D. GABA (gamma-am

ddd [48]

Answer: D. GABA (gamma-aminobutyric acid).

Explanation:

Neurotransmitters are chemical messengers that cross the synaptic gaps between neurons and thus, relay the message from one neuron to another.
Based on the response they produce, neurotransmitters can be inhibitory or excitatory in nature.
An inhibitory neurotransmitter is the one decreases the action potential producing ability of the neuron whereas the excitatory neurotransmitter does the opposite.
Example of an excitatory neurotransmitter is glutamate.
GABA is the major inhibitory neurotransmitter which is found in the adult brain whereas glycine is another inhibitory neurotransmitter that acts at the spinal cord.

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3 years ago

Read 2 more answers

after the number of wolves increased from 1970–1975, what happened to the moose population in the following years?

IRISSAK [1]

After the number of wolves increased from 1970-1975, the moose population in the following years would be most likely to DECREASED/ reduced.

If the number of their predators increase, the chance of one organism to face death will increase, which lead to decrease in popuation

hope this helps

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2 years ago