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aliya0001 [1]
3 years ago
12

Until recently, scientists were unable to observe subatomic particles. Which of the following

Biology
1 answer:
Delvig [45]3 years ago
4 0

Answer:

D.

Explanation:

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Jlenok [28]
E) Energy Pyramid
Technically it's an ecological pyramid, but E seems to be the closest to that.
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3 years ago
At one time, there were many more cheetahs than there are today. About 10,000 years ago, a change in
Ierofanga [76]

Answer:

<u>the bottleneck effect</u>

<u />

Explanation:

Genetic drift has an important impact on the small populations. mutations, which are spontaneous heritable changes in the genetic code, made up of DNA. Here, mutations accumulate over time in a group, modifying the distribution of alleles or various forms of a gene. Natural selection may result in a loss of diversity in a population called genetic drift; one trait's allelic frequency rises while others become less prevalent. Typically such differences exist because of occurrences of mutation and recombination.

Some mutations or alleles may become extinct from the population.

<u />

Variants of a gene accumulate and are transmitted across generations; the frequencies of these occurrences are altered and become more stable in genetic drift- they become genetically distinct and may eventually form a new species after isolation. This may be further compounded through other  phenomena such as the founder effect where a group separates and genetic diversity decreases; and the bottleneck effect where barriers to reproduction or the die-off a population increases genetic drift.

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6 0
3 years ago
The head of a human offspring turns down and prepares to enter the birth canal during ________
masya89 [10]
If I am correct it is The Third Trimester
4 0
3 years ago
Read 2 more answers
Inclusion bodies may contain which of the following?
Shtirlitz [24]
Inclusion bodies contain very little host protein, ribosomal components or DNA/RNA fragments.
4 0
3 years ago
Based on the chemical structure of cyanide, identify one type of biological macromolecule that could serve as a chemical precurs
SpyIntel [72]

<u>Answer:</u>

<em>The biological macro molecule protein can serve as a precursor to the production of cyanide. </em>

<u>Explanation:</u>

<em>Cyanides are chemical compounds that contain the cyanide group(C≡N). </em>Based on the elements attached to the cyanide group cyanides can be classified into organic and inorganic cyanides.

<em>In inorganic cyanides the cyanide group is present as CN^- ion which makes them toxic.  In organic cyanides  CN^- group is not present and thus they are less toxic. </em>

Since nitrogen is the essential component in a cyanide, a biomolecule containing nitrogen will best act as the precursor to cyanide formation.

<em>The biomolecule protein is a long chain polymer of amino acids that contain nitrogen group.  Thus proteins can act as precursor to cyanide formation. </em>

4 0
3 years ago
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