Answer:
[tex]D_m=1/2[/tex]
Explanation:
From the question we are told that
2 species
Assuming that questions a and be are solved
Diversity index D=2p_1p_2
with [tex]p_1 +p_2 =1[/tex]
Mathematically
[tex]D=2p_1(1-p_1)[/tex]
[tex]D=2(p_1-p_1^2)[/tex]
[tex]D=2({\frac{1}{4} -(p_1-1/2)^2}[/tex]
Therefore
[tex]D=\frac{1}{2} -2(p_1-1/2)^2[/tex]
Giving
[tex]D_m=1/2[/tex]
[tex]p_1=1/2[/tex]
In those parts of equatorial Africa where the malaria parasite is most common, the sickle-cell allele constitutes 20% of the b hemoglobin alleles in the human gene pool. In the United States, the parasite that causes malaria is not present, but African-Americans whose ancestors were from equatorial Africa are present. What should be happening to the sickle-cell allele in the United States, and what should be happening to it in equatorial Africa
Answer:
directional selection, stabilizing selection
Explanation:
Directional selection is a type of natural selection that favors one extreme phenotype over other phenotypes, thereby modifying allele frequency in the direction of the favored phenotype. This type of positive selection is the main cause of phenotypic diversification. In the USA, the environment created a selection pressure that favored individuals that don't have the defective sickle-cell allele, thereby reducing its frequency in this population. Stabilizing selection, also known as balancing selection, is a type of natural selection where the most common phenotype is selected in the population, thus predominating in future generations. In equatorial Africa, the defective sickle-cell allele is present in a high frequency because individuals that are heterozygous for this allele are less susceptible to malaria, and therefore balancing selection should maintain this allele in the African population.
what happens to the chemical bonds during chemical reactions
Lister cultured the bacteria responsible for milk spoilage.
True
False
Answer:
True
Explanation:
PLZ ASAP
A scientist is using a microscope to observe a type of
bacteria.
Which two structures would the scientist most likely see?PLEASE EXPLAIN WHY
A:nucleus and DNA
B:DNA and cell wall
C:cell wall and vacuole
D:vacuole and nucleus
Answer:
The two structures most likely to be observed by the scientist when looking at a type of bacteria under the microscope are cell wall and vacuole (option C).
Explanation:
Bacteria are prokaryotic organisms that lack a nucleus, most of the organelles, and whose DNA is dispersed in the cytoplasm. Some types of bacteria have a plasma membrane surrounded by a cell wall, and may be equipped with vacuoles to perform their functions.
It is very likely that two structures that are most likely to be differentiated when a type of bacteria is observed under the microscope are the cell wall and the vacuole, according with information above.
The other options are not correct because:
A and D. Bacteria lack a nucleus.
A and B. Bacterial DNA is dispersed in the cytoplasm and is very difficult to observe under the microscope.
Answer:
cell wall vacuole
Explanation:
What are the metric units for acceleration?
Answer:
meter per second squared
Which of the following environmental parameters would be important to monitor in order to ensure sustainable logging?
A. The number of trees cut down versus number trees burned
B. The number of new trees planted to replace those removed
C. The number of trees needed to increase soil fertilization
D. The number of trees removed within a single species
Answer:
B. The number of new trees planted to replace those removed
Explanation:
Because to ensure that logging is sustainable, they have to sustain a certain ratio of trees cut down, to trees planted. D. The muber of trees removed within a single species could be right, but I think B is more right.
If you get this wrong you can blame it on me.
Answer:
The number of new trees planted to replace those removed
Explanation:
which wall structures are found in plant cells but not in animal cells check all that apply
cell wall
cell membrane
endoplasmic reticulum
nucleus
chloroplasts
mitochondria
Answer:
cell wall, chloroplasts
Explanation:
no explanation, just the correct answer
Answer:
Options: A and E
Explanation:It was correct on edg 2021, Have a blessed day.
which image shows a non renewable resource?
1
2
3
4
When equipment malfunctions, a(n) _____ needs to be initiated.
A) Notification
B) Paper Work
C) Alarm
D) Work Order
Answer: Alarm
Explanation:
When equipment malfunctions, an alarm should be initiated to bring the malfunction to the attention of the relevant personnel.
This will ensure that whatever adverse effects the malfunction could have caused is mitigated and the machine can be attended to on time to prevent further damage.
Which atom is involved in giving your heart energy to beat?
O carbon
O gold
O oxygen
O iron
Answer:
Oxygen
Explanation:
-How fast the heart beats depends on the body's need for oxygen-rich blood. At rest, the SA node causes your heart to beat about 50 to 100 times each minute. During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute.
-The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.
plz help me i beg of you!???
Answer:
Pretty sure it's D, because the birds beak evolves to crush those grains as a result of certain food available in their habitat, although it does not say "diet" as an option so D is your best guess.
Explanation:
If two hybrid tall pea plants are crossed what is the probability that the offspring will have the tall phenotype?
Answer:
There is a high probability that the Pea plant will have a High phenotype!
Explanation:
Because both "parent plants" are tall, this will cause the offspring to also be tall, this will be because it in it's genes or in other words DNA too be strong.
What might be the consequences of your choice?
• Political:
• Economic:
• Social:
Answer:
Political: Lobbyists.
Economic:Farmers and industrial companies will significantly reduce their output and reduce local jobs. The companies that sell pesticides and fertilizers to local companies will also suffer losses. Farmers will suffer the most if they are unable to find safer fertilizers and pesticides to use.
Social:After a period of time, water pollutants will reduce to safe levels. This could be a long wait. Poverty may increase in the region due to lost jobs and income.
Explanation:
Please I need Help!!
● Prophase I
● Metaphase I
● Anaphase I
● Telophase I
● Prophase II
● Metaphase II
● Anaphase II
● Telophase II
Answer:
Its in this order: 3 - 4 - 1 - 6 - 5 - 7 - 2 - 8
Explanation:
I learned this a while ago so I would know
Which circuit would have the most electrical power?
OA 12A
V0.14 V
oBi22A
0.19 V
O20A
V0.17V
O116A
V025y
025v
Answer:
the answer is oa 12a
\
Explanation:
Bam hi cuts between what bases
what is the dakota access pipeline
Answer: The Dakota Access Pipeline (DAPL) or Bakken pipeline is a 1,172-mile-long underground oil pipeline in the United States. It begins in the oil fields of the Bakken formation in northwest North Dakota and continues through South Dakota and Iowa to an oil terminal near Patoka, Illinois.
Explanation:
An idea in science is supported or rejected after several
Question 23 options:
publications
experiments
alterations
meetings
Answer:
experiments
Explanation:
Answer:
experiments
Explanation:
I took the test
Clever ones this is one for you
If you throw a pebble into a pond, ripples spread out from where it went in. These ripples are waves travelling through the water. The waves move with a transverse motion. The undulations (up and down movement) are at 90° to the direction of travel.
Answer:
so please Indicate your question
the combination of a heart arteries and veins and capillaries is____
Answer:
A (an organ system)
Explanation:
from his monohybrid crosses, Mendel developed his first law
Answer:
Im confused but if your asking for Medel's first law it would be states that for the pair of alleles an individual has of some gene (or at some genetic locus), one is a copy of a randomly chosen one in the father of the individual, and the other if a copy of a randomly chosen one in the mother, and that a randomly chosen one will be copied
Explanation:
Help me :(( please. It’s due soon
Answer:
I would guess B or C
Explanation:
I hope this helps
SUBJECT SCIENCE: how could the rocks from the Rocky Mountains and the Great Plains have such similar composition? (WRITE AT LEAST 5 SENTENCE)
And, what else it literally says CHECK ALL THAT APPLY like....
Answer:
i dont understand??????
Explanation:
Answer:
What??
Explanation:
This makes no sense to me...
When is carbon dioxide used during photosynthesis?
A. Light- independent reaction
B. Light-dependent reaction
C. Carbon dioxide is made, not used
Answer:
Pretty sure its b.
Explanation:
Help I need helpppppppoo
Desert plants and animals are adapted to the lack of what and high
Answer:
lack of water and high concentration of heat and dryness
Explanation:
Deserts don't get that much rainfall, so desert wildlife are adapted to survive in such a dry climate. Take the camel, for instance, it can store three bathtubs of water in it's hump, so it can go a very long time without water. And without that rainfall, the desert is dry and, usually, very hot. Animals have adapted to this by only coming out in the nighttime when it's cooler.
hope this helped:)
Use the graph and the table above to complete the table by estimating the amount of energy transferred near location B.
A.
1600 kilojoules
B.
300 kilojoules
C.
800 kilojoules
D.
400 kilojoules
E.
3200 kilojoules
i need some help here now ASAP
Answer:
None of those, its called Soul Horizons
Explanation:
Answer:
Soil Layers also know as Soil Horizons.
Explanation:
Pls help :)) worth 10 points (:
Answer:
A
Explanation:
just go for A