Answer: Species can change over time in response to changes in environmental conditions through adaptation by natural selection acting over generations. ... Evolution results primarily from genetic variation of individuals in a species, competition for resources, and proliferation of organisms better able to survive and reproduce.
Explanation:
Sickle cell anemia is an inherited form of anemia - a condition in which there aren't enough healthy red blood cells to carry adequate oxygen throughout your body.
Normally, your red blood cells are flexible and round, moving easily through your blood vessels. In sickle cell anemia, the red blood cells become rigid and sticky and are shaped like
sickles or crescent moons. These irregularly shaped cells can get stuck in small blood vessels. How does sickle cell anemia affect the blood flow in a human?
Answer:
RBCs are round red blood cells that easily move through blood vessels and carry oxygen with them to provide cells oxygen. In sickle cell anemia, the shape of the red blood cells is like sickles or crescent moons.
These cells occur due to mutation on the gene that produces this protein which results in rigid, sticky cells that can get stuck in small blood vessels and blocks the flow of blood, oxygen to parts of the body.
correct answers only please!
Details are underlated or irrelevant details to the topic at hand
Need help with this will make brainliest if right
Research on the different thermal conductivities of different materials. From the different values of the thermal conductivities give seven example of conductors and seven example of insulators
Answer:
conductors are like silver, gold, copper, steel, sea water, and iron. insulators are rubber, glass, oil, diamond, dry wood, and insulation.
Explanation:
Is a bacteria cell more complex than a plant cell?
Populations of caribou show a cyclical fluctuation with predictable patterns in Norway. Reindeer populations are higher in the
southern regions in winter months while populations are higher in the northern regions in the summer months. Infer the cause of
these predictable changes for the Norwegian reindeer populations.
-))
A)
B)
C)
Reindeer migrate from north to south in the winter months to reach more
fertile feeding grounds. They migrate to the north in summer months.
The reindeer migrate from north to south in the summer months to reach
more fertile feeding grounds. They migrate to the north in winter months.
The reindeer populations migrate to an intermediate location in Norway to
mate and then diverge to the northernmost and southernmost regions to
avoid competition for food.
There are two species of reindeer in Norway. The northernmost species
reproduces in the winter, causing an increase in population size. The
southernmost species reproduces in the summer, causing an increase in
population size.
D)
Answer:D
Explanation:
Polo g the goat
Answer:
the correct answer is a
Explanation:
What are the three main differences between active transport and passive transport?
Answer:
i hope this helps : )
Explanation:
This act was signed into law on August 6, 1965, by President Lyndon Johnson. It outlawed the discriminatory voting practices adopted in many southern states after the Civil War, including literacy tests as a prerequisite to voting.
What is structure 1?
Answer:
Bro give a chart or something not just a question with no info.
Explanation:
How can someone see in a dim room
answer this question.......asap
D
Question 2
1 pts
Because the ANS is a visceral motor system, afferent pathways are of no importance
and actually are rarely found.
True
False
Answer:
The correct answer is - false.
Explanation:
The ANS is a system consider as the visceral motor system, however, the afferent pathways are the system that is used to flow the signals to the control center from taking from the receptor and are very essential for the homeostasis communication of the nervous system.
This pathway involves the neurons with the signals to the spinal cord and the brain as sensory data. This pathway is very common to provide communication between the receptor and spinal cord.
Compare and contrast gradualism and punctuated equilibrium. Provide at least one comparison and one difference in your answer. You may use examples for each if that helps you with answering the question.
Answer:
Gradualism and punctuated equilibrium both are the process of evolution of species over time. However, the gradualism process involves the evolution that occurred slowly, occurring in small periodic changes in the gene pool over a long period of time. Whereas Punctuated equilibrium takes place there are longer periods of apparent stasis interrupted by the sudden change.
They both help in finding the relative change in evolution rate and assist in the study of the anatomical changes occurred during the evolution in different kind of animals or organisms.
The stage of mitosis where the chromosomes line up
Answer:
Metaphase
Explanation:
Chromosomes line up at the metaphase plate, under strain from the mitotic shaft. The two sister chromatids of every chromosome are caught by microtubules from inverse shaft posts. In metaphase, the shaft has caught every one of the chromosomes and arranged them at the center of the cell, prepared to separate.
Answer:
It is metaphase.
Explanation:
In metaphase (a), the microtubules of the spindle (white) have attached and the chromosomes have lined up on the metaphase plate. During anaphase (b), the sister chromatids are pulled apart and move toward opposite poles of the cell.
Mom has type B blood. Dad has type O blood. They have a child with type O blood.
What is the genotype for mom?
IAI
O IAIB
O IBI
IBIB
The genotype for mom is O IBI.
The genotype of an organism is its complete set of genetic fabric. Genotype can also be used to consult the alleles or editions a man or woman contains in a particular gene or genetic place.
A genotype is a scoring of the form of variation gift at a given vicinity (i.e., a locus) in the genome. it can be represented by way of symbols. as an instance, BB, Bb, and bb may be used to represent a given variant in a gene.
A person's genotype is the mixture of alleles that they own for a selected gene. A person's phenotype is the combination of observable traits or trends. while an organism's genotype is at once inherited from its parents, the phenotype is merely influenced by way of genotype.
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Why Mike a scientist repeat any spearmint if he she didn’t make a mistake in the first one?
Answer:
Explanation:
i think its so that there wont be any mistake in when they are collecting their data which simplifys to Experiments are often replicated or repeated even when no obvious mistake was visible
Using the picture below, what is the BEST question that a student could ask that would help determine which aquatic biome this is depicting?
A.
Does the temperature of the water affect the salinity?
B.
Is there a variation in water pressure throughout the day?
C.
Is there a fluctuation in water salinity throughout the day?
D.
Is there variation in water temperature throughout the day?
Answer:
Explanation:
Using the picture below, what is the BEST question that a student could ask that would help determine which aquatic biome this is depicting?
A. x
Does the temperature of the water affect the salinity?
B. x
Is there a variation in water pressure throughout the day?
C. x
Is there a fluctuation in water salinity throughout the day?
D. right
Is there variation in water temperature throughout the day?
On the colorful map, in general, where is the youngest crust located?
Answer:
On the red parts of the map
Explanation:
The map shows that the red parts are the youngest.
what is the full meaning of BMW
Answer:
Bayerische Motoren Werke
when was Nigeria amalgamated?
Answer:
January 1, 1914,
Explanation:
The image illustrates a building with a green roof - a roof that is covered in
living vegetation. Why would a society use this sustainable practice?
A. It reduces the amount of carbon dioxide taken up in an area.
B. It replaces invasive nonnative plants with native plants.
C. It replaces natural wilderness with more pavement.
D. It reduces the building's energy costs for heating and cooling,
Answer:The image illustrates a building with a green roof - a roof that is covered in living vegetation . What is a goal of this sustainable practice for societal development ?
Explanation:
A society uses this sustainable practice because it reduces the amount of carbon dioxide in an area. So, the correct option is (A).
What is Sustainable practice?Sustainable practices are described as supporting ecological, human and economic health and vitality. Sustainability recognizes which resources are limited. It should be used conservatively and wisely which take into account long-term priorities and consequences of the way resources are used.
Reduce, reuse and recycle are the basic principles of wise use of resource. Natural resources are conserved and protected by deploying these principals by reducing landfill waste, energy consumption and pollution.
Some sustainable practices are:
By reusing paper and plastic bags for shoppingBy opting for paperless documentsBy avoiding disposable kitchen itemsThus, a society uses this sustainable practice because it reduces the amount of carbon dioxide in an area. So, the correct option is (A).
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Pls help this is due in an hour!!!!
Answer:
Throughout their life cycles, frogs have an important place in the food chain as both predators and prey. As tadpoles, they eat algae, helping regulate blooms and reducing the chances of algal contamination. Frogs are an important source of food for a variety of animals, including birds, fish, monkeys and snakes.
Explanation:
PLASE HURRY!!!!
Cross a parent with genotype Rr and the other parent with genotype Rr...make a
punnett square.
Rrx Rr
What is the genotypic ratio of the offsprings?
-4:0
-2:2
-1:2:1
-1:1:1
Answer:
R r
R RR Rr
r Rr rr
Explanation:
1:2:1 is the genotypic ratio
What can the presence of different types of fossils tell us about how this environment changed over time?
a. This environment has been an ocean from long ago through more recent times.
b. This environment has slowly changed from being an ocean to a swamp to a forest.
c. This environment has gotten much cooler over the period of time represented by these fossils.
d. This environment has become covered with water.
Answer:
B. the Environment has slowly changed from being an Ocean to a Swamp to a Forest.
Explanation:
makes the most sence when comparing it to the picture
Answer:
b. This environment has slowly changed from being an ocean to a swamp to a forest.
Explanation:
As we can see, there are water creatures in the first picture, then there were frogs and dragonflies, which are commonly found in swamps (crabs too). We see tree leaves and frogs in the last picture, which are common in forests.
What needs to happen in order for two populations to be isolated?
Answer:
Isolation means that organisms of the same species are separated, and happens when there is something between the organisms that they can't cross.
Explanation:
Organisms become isolated as a result of environmental change. The cause of isolation can be gradual, like when mountains or deserts form, or continents split apart.
which of the following describes photosynthesis?
the plant take in oxygen, water, and nutrients to make food for humans
the plant gets rid of carbon dioxide as a waste product
the plant takes in carbon dioxide, water, and sunlight to make food for itself
the plant reproduces in the chloroplast
Answer:
Explanation:
the plant takes in carbon dioxide, water, and sunlight to make food for itself.
A student was explaining to the class about freshwater and the importance that it has to everyone’s life. What is NOT true about freshwater biomes?
A.
Freshwater biomes are found all over the world
B.
There is a wide variety of climates that have freshwater biomes
C.
There are different types of bodies of freshwater biomes
D.
They have more than 5% salt content
Answer:
D.
They have more than 5% salt content
What will happen to a tide pool itself if star fish are removed from the ecosystem?
Answer:
the ecosystem will be disturbed... the animals feeding on it will be reduced due to lack of food and the animals on which the star fish was feeding will be increased which causes a total imbalance in ecosystem..
PLZ HELP THIS IS TIMED!!!!!\
ATP is made during the Krebs cycle between two molecules
A.Succinyl COA
B.Fumarate
C.Malate
D.Alpha Ketoglutarate
E.Succinate
Answer:
The answer should be A,if not than sorry!
Which organization would not have to abide by OSHA guidelines?
a. nuclear plant
b. religious-based corporation
c. family run business with only local employees
d. all organizations must abide by OSHA guidelines
Correct ans: Nuclear plant :)
Answer:
b. religious-based corporation
The air in the thermosphere becomes thinner and thinner until it fades into space. True or false
Answer:
Well to be honest there are no unmistakable separating lines. Each layer mixes into the layer above it and the layer underneath it. Researchers are certain that the air becomes thinnerand more slender farther from the Earth's surface, until it at long last blurs off into space.
Explanation:
Answer:true
i cant explain they wont let me put in l-i-n-k-s