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Darina [25.2K]
3 years ago
12

Alligators are predators that live in the Florida Everglades. A scientist is using a computer model to determine whether the all

igator is a
keystone species in the Everglades. The graph shows the population of aligators in one of the computer simulations
Population of
Alligators (Simulation)
Percentage of Population
compared to Year 0
0
4
12
16
8
Year
The simulation also provides data for many other Everglades species. Which of these results would provide the strongest evidence that the
aligator is a keystone species?
Biology
1 answer:
Zanzabum3 years ago
8 0

Answer:

The populations of many species increase and decrease in a similar pattern as the alligator.

Explanation:

Since alligators in Florida are a keystone species, other species rely on it as well to keep everything in balance. Keystone species maintain structure, stability, and diversity in an ecosystem.

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You cross two red griffins with blue eyes and produce offspring that are: red with blue eyes, red with green eyes, white with bl
sergejj [24]

Answer:

The reason for the offspring to present these genotypes is that during the formation of the gametes, the alleles separate and are inherited independently, therefore they can generate several different phenotypic combinations.

Explanation:

In order for an offspring to present very different phenotypes, as shown in the question above, it is necessary that the two red griffins with blue eyes that were crossed are heterozygous. Thus it will be possible for the offspring to present a wide variety of phenotype, according to Mendel's second law.

Mendel's second law is called the Law of segregation. This law explains that the alleles (which determine the characteristics of individuals) are separated in the formation of gametes and inherited by the offspring of a cross independently, and can generate different combinations of phenotypes, when the parents of a cross are heterozygous.

8 0
3 years ago
Produce a table that displays which molecular bonds are found in the primary, secondary, tertiary structure (the same can be fou
zysi [14]
Primary= peptide bonds
secondary= hydrogen bond 
tertiary= weak bonds, hydrophobic, disulfide bridges, salt bridges 
quaternary= between polypeptides 
3 0
3 years ago
A medical test indicates that a patient has a defective protein. This
OleMash [197]

Answer:

number of nitrogen bases

Explanation:

<em>The correct answer would be the number of nitrogen bases.</em>

<u>A defective protein is usually caused by mutation, which is defined a change in the DNA sequence of an organism.</u>

Mutation can occur in a variety of ways including:

<em>1. Deletion of nucleotide base sequence in the DNA</em>

<em>2. Addition (insertion) of nucleotide base sequence in the DNA</em>

<em>3. Duplication of nucleotide sequence in the DNA</em>

<u>A change in number of phosphate molecules, sequence of subunits DNA and sequence of sugar molecules if possible in nature, do not lead to mutation if the change does not affect the sequence of DNA.</u>

Hence, the correct option is number of nitrogen bases.

6 0
3 years ago
Chromosomes contain __________. Chromosomes contain __________. one type of macromolecule: nucleic acid no macromolecules, just
vovikov84 [41]

Answer: two types of macromolecules: nucleic acid and protein

Explanation:

Chromosomes particularly eukaryotic chromosomes are made up of nucleic acids in particular DNA (deoxyribonucleic acid) and some proteins which include histone proteins and non histone protein that helps in the packaging of an almost 2m DNA into a very tiny 0.6microm nucleus. The histone protein includes H2A, H2B, H3, H4 which forms an octamer around which the DNA is wrapped (structure of a nucleosome) and linker histone H1 joined to a linker DNA that links two nucleosomes.

4 0
3 years ago
What implications does the period of infectiousness have for the control of transmission of these diseases? How are chronic earn
marishachu [46]

Answer:

The implications are epidemies, risk factors and disease burden.

When it comes to Typhoid, the cronic earners are treated with prescribed antibiotics, changes in sanitary habits and blood testing.

When it comes to hepatitis b, the cronic earners are treated with prescribed antivirals,  blood tests, liver ultrasound and biopsy.

Explanation:

<em>Epidemies can occur because the sick population, might not be aware and contaminate the other amount who is not infected. That is the reason why the chronic earners must take the prescribed antibiotics for as long as the physician has prescribed, they must incorporate healthy sanitary habits like washing their hands with soap after using the bathroom, not preparing or serving food to other people. Because these actions will prevent others from getting the illness. And finally, they must get tested  so that the doctor can ensure that no Salmonella Typhi bacteria remain in their body. The best way to avoid Typhoid is by vaccine.</em>

<em>Hepatitis B epidemies, risk factors and disease burden happens when the chronic earner use illegal injected drugs and share the niddle, have unprotected sex with multiple partners, receive kidney dialysis or live with someone who has hepatitis B. So the best way of managing these patients is by lifetime treatment, which means that they will take antiviral medications, interferon injections or have a liver transplant. </em>

<em>The best way of preventing the hepatitis B is by vaccine, safe sex and no drugs.</em>

5 0
3 years ago
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