Answer: B speciation causing an increase or decrease in competition among different species.
The other choices are the HIPPCO or the human impacts that cause extinction not geographical changes
The geological changes that impact the dynamics of an ecosystem Speciation, drive an increase or decrease in contest among different species.
What is the process of speciation?Speciation is the process by which new species form. It happens when groups in a species become reproductive remote and branch.
In allopatric speciation, sets from an established population grow into various species due to years of geographical separation.
Thus, option "B" is correct, Speciation is how a new type of plant or animal species is created.
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What two diseases have been studied together that provide evidence of evolution in
humans?
A)malaria and ebola
B)sickle cell anemia and malaria
C)cytochrome c disease and plasmodium fever
D)iron-deficient anemia and yellow fever
Answer:
sickle cell anemia and malaria
Explanation:
Scientists believe the sickle cell gene appeared and disappeared in the population several times, but became permanently established after a particularly vicious form of malaria jumped from animals to humans in Asia, the Middle East, and Africa.
The two diseases have been studied together that provide evidence of evolution in humans is sickle cell anemia and malaria.
What is sickle cell mutation?
The sickle cell mutation is relevant to malaria because infection of a red blood cell with the malaria parasite leads to hypoxia. In individuals of the AS genotype such blood cells sickle and are then eliminated by macrophage cells of the body’s immune system, lessening the burden of infection (Luzzatto, 2012). Carriers of the sickle cell trait are particularly resistant to severe malarial episodes; they are less resistant to mild cases. The mechanism by which carriers are protected from malaria is different than the acquired immunity that both AA and AS individuals achieve following repeated exposure to the disease.
The benefit that possessing a single copy of the sickle cell gene conveys counterbalances the biological cost incurred when homozygous SS children are stricken with sickle cell disease. An individual of the AS genotype is more likely to reach adulthood than is an individual of the AA genotype, but the former is also more likely to see his/her child die of sickle cell disease. This is known as a heterozygote advantage or balanced polymorphism. As shown more formally below, the stronger is the pressure of malaria on survival, the more advantaged are individuals who carry the S gene, and in equilibrium, the higher the percentage of the population who will be carriers. Indeed, it was the correlation of high prevalence of the sickle cell gene and the presence of malaria that first led scientists to understand the protective role of the sickle cell mutation (Kwaitkowski, 2005). As will be seen in the next section, the underlying genetic mechanism by which the sickle cell trait is transmitted provides a means of mapping sickle cell prevalence into an estimate of the mortality burden of malaria.
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2
Which of the following traits is encoded in your DNA?
A
Your personality
B
Your likes and dislikes
C
Your intelligence
D
Your eye color
Answer:
D
Explanation:
it's your eye color because DNA makes up the genetic aspects of you. The other choices are something you can choose to improve or change.
Eye color trait is encoded in the DNA. So, the correct option is D.
What are Traits?A phenotypic trait is defined as a clear, observable and measurable characteristic of an organism that is the expression of genes in an observable manner. An example of a phenotypic trait is a specific hair color or eye color.
This is described as a distinctive characteristic of an individual that can be determined by genes, environmental factors, or a combination of both. Characteristics can be qualitative for example, as eye color) or quantitative for example, height or blood pressure.
Thus, Eye color trait is encoded in the DNA. So, the correct option is D.
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As the territory of Africanized bees continues to expand, what is the most likely outcome?
Answer:
Competition among nectar- and pollen-feeding invertebrate pollinators and resource partitioning are affected by introduced Africanized Honey Bees. When Africanized Honey Bees compete with other species of honey bees for flowers, the Africanized bees may displace the other bees from the food sources.
Which of the following is most likely to happen if data from a scientific
experiment are collected improperly?
O A. The hypothesis will be disproved.
B. The scientist will be discredited.
C. New discoveries will be made.
D. The conclusions will be inaccurate.
What nitrogen base pairs with Adenine?
Answer:
The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.
Explanation:
Answer:
Thymine.
Explanation:
The best way to remember these nitrogen base pairings is by using a common acronym. Think Apple Tree and Car Garage. Apple represents Adenine and Tree represents Thymine. Car represents Cytosine, and Garage stands for Guanine. This memory trick can help remember the nitrogen base pairs.
What is the relationship between DNA mutations and the disorders? Disorders:Hemophila,Beta thalassemia, and Sickle Cell Disease
Answer:
disorders are caused by mutations of these genes
Explanation:
Distinguish between apocarpous and syncarpous
how you know that horses are related to other animals?
Answer:
their bone structure
Explanation:
Horses belong to a group of mammals with an odd number of toes. That rules out mammals with two toes, or "cloven hooves," like goats, pigs, cows, deer, and camels. So who are the other odd-toed, plant-eating animals? Most members of this group, known as perissodactyls, are extinct.
gregor mendel is best known for his work with pea plants and for helping uncover many of the mysteries of genetics. one of his major findings stated that there were specific , physical units of inheritance that are transmitted during reproduction. what is the name given to these units of inheritance which can be found on chromosomes?
Answer:
Genes
Explanation:
Genes are the specific unit of inheritance that are transmitted through reproduction.
Which system includes all life on Earth?
A biosphere
B cryosphere
C geosphere
D hydrosphere
Answer:
Biosphere
Explanation:
contain all the planets living things
The hypothesis would not have been supported
by the data if...
A. traits independently assorted in
approximately a 9:3:3:1 ratio.
B. the traits for white fur and red eyes were
always inherited together.
C. all the F1 offspring had the same phenotype.
Answer: B
the traits for white fur and red eyes were always inherited together.
Explanation:
The hypothesis would not have been supported by the data if the traits for white fur and red eyes were always inherited together by the law of independent Assortment.
What is law of independent Assortment?The law of independent assortment selects alleles of two extra genes into gametes independently of each other.The allele acquired for one gene is unrelated to the allele obtained for another.Mendel's experiment constantly shown that the progeny's distinctive combinations are always unique from their parents'.He formulated the Law of Independent Assortment on this premise.So we can conclude that as the qualities for white fur and red eyes are not usually inherited together, we may deduce that the two features are regulated by distinct genes and are independently shown in the person, as stated by the law of independent Assortment.
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a transcribed strand of mRNA has the sequence of UACGA what was the DNA sequence and where does the mRNA need to go next
Answer:
f
Explanation:
f
Answer:
ATGCT, mRNA needs to go out of the nucleus to the cytoplasm to bind to a ribosome.
Explanation:
mRNA strand: UACGA
complementary strand (DNA): ATGCT
in DNA & RNA:
C = G
in DNA:
A = T
in RNA:
A = U
( DNA nitrogen bases: A, T, C, G ..... RNA nitrogen bases: A, U, C, G)
and you better review protein synthesis to know more about mRNA
Stay curious!!
I'm sleepy, hot, and my body feels heavy. Is there something wrong?
Answer:
fatigue
Explanation:
I'm sorry to break it to you, but these are some serious symptoms, and you definitely shouldn't ignore them. You're going to die, my friend! Say your prayers, and start digging your grave...
Inside
Outside
0
10
20.30
50
60
30
80
90 100
Time
(minūtes)
Change in
mass 19
6
0
3
2
9
33:
39
N
1.5.1
(10)
Plot a line graph of these results.
List TW nyimnmental factors that sould have caused the greater change
12
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the south
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the south
The sun reaches its highest point in the Northern sky (North of the equator) on the:
A. Summer solstice
B. Winter solstice
C. Vernal Equinox
D. Autumnal Equinox
Answer:
A . Summer solstice... around June 21
A wave along a guitar string has a frequency of 450 Hz and a wavelength of 3.5 meters.
Calculate
the speed of the wave. Show the formula and show your calculation.
Answer:
1575
Explanation:
speed = wavelength ×frequency
Our wavelength is 3.5 and our frequency is 450 we've been told to find the speed so we multiply the two which gives us 1575
all
the
1. Which processes would both unicellular
and multicellular organisms perform?
A. Eating and finding shelter
Remove waste and make their own
food
C. Grow and reproduce
Talking and breathing
4. Which is not a common poison?
Answer:
Do you have the options?
Which scientist created the most modern classification hierarchy that we use today? Aristotle Linnaeus Woese Whittaker
HELP ME PLEASEEEE
Answer:
Linnaeus
Explanation:
Answer:
Linneaus
Explanation:
Linnaeus is responsible for taxonomy, the most modern classification of heirarchy we use today.
Someone help me please thank you lol!
is mars Held in orbit by the gravitational pull of a planet
Answer:
No
Explanation:
Mars orbits the Sun, a star. The Sun's gravity keeps Mars in orbit, not a planet.
Good luck ^^
why doesn't ice evaporate?
Answer:
Ice doesnt evaporate because it melts.
Explanation:
What part of the water cycle is in the atmosphere?
good morning ,have a great day ahead.
Please help me if you know the answer please
18. Which process is most likely involved in the change in red blood cell volume in this experiment? A. phagocytosis B. cyclosis C. osmosis D. hydrolysis
Answer:
C. osmosis
Explanation:
A student is looking for evidence that spindle fibers are separating
chromosomes during cell division. Which cell is the student looking for
below?*
Which would be true of sexual reproduction?
a
increases survival rate
b
involves one parent
c
increases genetic diversity
d
produces identical offspring
Answer:
c increases genetic diversity
Explanation:
Answer:
C. increases genetic diversity
Explanation:
First, by process of elimination: sexual production doesn't necessarily increase survival rate, it can, but not always. Sexual reproduction involves two parents, so b is wrong. And sexual reproduction doesn't produce identical offspring, because it's mixing the genes from both parents, do d is wrong. That only leaves c, with two parents, the gene pool is always expanding, and with less chance of mutation
hope this helps:)
true or false?
Carnivores include lions, polar bears, hawks, frogs, salmon, and deer.
alafood chain
Answer:
false
Explanation:
deer are not carnivores
a carnivore is an animal that only eats meat, and some of these animals also eat plants (like baby frogs/tadpoles, which are herbivores)
[herbivore: only plant]
[omnivore: plant and animal]
[carnivore: only animal]
[decomposer: dead organisms]
Which of the following is a major goal of fisheries managers?
A.Using resources intelligently so they will be preserved.
B.Increasing fish production as much as possible.
C.Reducing public consumption of fish to protect fish populations.
D.Preserving natural resources in a pristine and unused state,
Answer:
A
Explanation:
Which would a chemoautotroph use to produce energy?