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.
According to Archimedes, the buoyant force on an object is equal to ____.
a.
the weight of the object
c.
the density of the fluid
b.
the fluid pressure on the object
d.
the weight of the fluid displaced
Please select the best answer from the choices provided
A
B
C
D
Answer:
A
Explanation:
the object will be hard
The image below is an example of which level of organization,
Is smoking low-tar cigarettes a good idea?
Low tar cigarettes have been shown to be no safer than regular cigarettes, and smoking them does not lower the risk of cancer or other diseases.
I would say it's not a good idea
Temperature
20. When cooling food outside of the refrigerator using the ice bath method, the
temperature of the food must reach ___ within 2 hours and within a total of 6
hours?
O A. 90°F and 61°F
OB. 100 and 710F
O C. 70°F and 41°F
O D. 80°F and 51°F
Answer:
When cooling food outside of the refrigerator, the temperature of the food must reach 70º F within 2 hours and 41º F or below within a total of 6 hours.
Explanation:
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Hurry Timed!!! Help pls!!! 20 points!!!
Answer:
This fern has roughly 630 pairs of chromosomes or 1260 chromosomes per cell. The fact that these cells can accurately segregate these enormous numbers of chromosomes during mitosis is truly remarkable.
Explanation:
Leaf cell has 21 chromosomes.
Which of the following lists includes only consumers shown in the food web above?
A.
coyote, grizzly bear, trout
B.
grass, grizzly bear, deer
C.
algae, mayfly, deer
Answer:
A
Explanation:
Grass and Algae aren't consumers they are producers
Answer:
Explanation:
Grass. Grizzly bear, deer
Glycolysis yields Choose... molecules of ATP, while the electron transport chain yields Choose.. molecules of ATP due to the presence of oxygen.
Answer:
Glycolysis yields 2 molecules of ATP, while the electron transport chain yields 32 molecules of ATP due to the presence of oxygen.
Explanation:
Glycolysis yields 2 molecules of ATP, while the electron transport chain yields 32 molecules of ATP due to the presence of oxygen.
What is electron transport chain?An electron transport chain is a collection of protein complexes and other molecules that associate protons across a membrane with the transfer of electrons from electron donors to electron acceptors via redox processes. Both photosynthesis and cellular respiration take place in mitochondria.
An organic metabolite (an intermediary in metabolic reactions) reacts with the coenzyme NAD+ to begin the electron transport cycle (nicotinamide adenine dinucleotide). In this oxidation reaction, the organic metabolite loses two hydrogen atoms (or two hydrogen ions and two electrons).
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Which set of organs helps the human body get rid of waste?
A
skin, pancreas
B
kidneys, bladder
C
pancreas, small intestine
D
bladder, stomach
How does the muscular system interact with the digestive system?
A
Food is moved through the small intestine.
B
Oxygen is moved into and out of the lungs.
C
Saliva production increases at the sight or smell of food.
D
Nutrients are absorbed and transported to other body parts.
What do scientists mean when they refer to a
population?
A. all the organisms in an ecosystem
B. all the species that share similar
anatomical features
C. all the animals that acquire resources
through similar methods
D. all the interbreeding members of a certain
species in an ecosystem
Answer:
d.
Explanation:
What steps do you think could be taken to help generate jobs and help people and rise out property
describe the procedure for a civil law trial. what are the possibilities for the outcome of a case?
Answer:
A civil trial starts with the pleadings, where the plaintiff files their complaint with the court. The defendant can then answer the claim. This brings the trial to discovery, where each side gathers evidence for their argument before the judge
Explanation:
What are biodiversity hot spots?
O A. Areas where large numbers of earthquakes and volcanic eruptions
occur
B. The warmest and driest ecosystems on Earth
C. Areas where the average annual temperature exceeds 40°C
O D. The richest and most threatened reservoirs of life on Earth
Answer: D
Explanation: Yet biodiversity hotspots are, by definition, in a conservation crisis. To be classified as a biodiversity hotspot, a region must have lost at least 70 percent of its original natural vegetation, usually due to human activity. There are over 30 recognized biodiversity hotspots in the world
How are weather fronts important to describing air masses?
Answer:
Air masses over water are called maritime air masses, while air masses over land are called continental air masses. The borderline between two air masses is called front. Cold fronts move faster than warm fronts and cause rapid formation of xlouds ,leading to violent storms and heavy rain.
Which of the following correctly states how genes, chromosomes and traits are related? A Chromosomes are part of genes. The traits determine our chromosomes. B Traits are segments of chromosomes. The chromosomes make up our genes. C Genes are segments of DNA on chromosomes. The genes code for proteins that make our traits. D Chromosome are make up of DNA which is divided into genes. The traits are all of the chromosomes we find in a cell.
Answer:
C
Explanation:
While D could be the right answer if it was phrased better the most liekly answer seems to be C as Genes are small segments of DNA and DNA makes up chromosomes in turn causing chromosomes to be made up of genes. I believe that proteins do make our traits so C is the best answer.
Genes are segments of DNA on chromosomes. The genes code for proteins that make our traits. So, the correct option is (C).
What are Genes?Genes are defined as the basic units of heredity passed from parent to child that are made up of sequences of DNA and arranged one after the other at specific locations on chromosomes in the nucleus of cells.
Genes are found in each one of the 37 trillion cells that make up the body. Every cell has a nucleus and inside each nucleus are chromosomes and all chromosomes are made of DNA, molecules that contain genetic information called genes.
A chromosome contains hundreds to thousands of genes where each normal human cell has 23 pairs of chromosomes, for a total of 46 chromosomes. Trait is any gene-determined characteristic and is often determined by more than one gene.
Thus, Genes are segments of DNA on chromosomes. The genes code for proteins that make our traits. So, the correct option is (C).
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Which gives nourishment to embryo sac??
1) Tapetum
2) Endosperm
3) Thalamus
4)Nucellus
Answer:
4 Nucellus
Explanation:
if u think right then follow me
how can you determine whether an organism is a plant or organism?
Answer:
an organism is multicellular, heterotrophic (cannot make its own energy), and has no cell wall, it is an animal. This is the definition of the kingdom Animalia.
There are unicellular animal-like members of the kingdom Protista commonly called protozoa.
Fungi are heterotrophic and multicellular, but they have a cell wall made of chitin.
Explanation:
What are the forces behind the surface currents known as gyre?
CHOOSE ALL THAT ARE CORRECT
A) In the northern hemisphere, the westerlies are winds that blow water from east to west.
B) The gyres are made up of currents set in motion by winds and gravity.
C) Surface currents are deflected at an angle due to the Coriolis effect.
D) The trade winds start a current that is turned by the Coriolis Effect into a eastward flow along the equator.
E) Topography determines the location, size, and shape of the gyres.
F) Thermohaline circulation patterns move surface water from equatorial regions to the poles.
Answer:
F) Thermohaline circulation pattern move surface water from equatorial regions to the poles
Which parts are included in a scientific name? Select all that apply.
1.family 2. species 3. genus 4. phylum
Answer:
Genus and species name
Explanation:
Scientific names are created to help decrease confusion in the naming process of animals and plants. The first part is the genus which is the origin of the organism and the second part is the species which is what identifies it as plant, animal, and other stuff.
Hope this helps :)
HELP ME NOW
The molecular attraction of a substance never changes.
True
Or False
Answer:
True
Explanation:
Which statement is most accurate about alternation of generations?
It involves changing the total number of chromosomes in a plant cell.
It refers to the haploid and diploid phases of the plant life cycle.
It refers to the processes of meiosis and fertilization.
It involves only some of the seedless vascular plants.
Answer:
It involves alternating haploid and diploid phases. alternation of generations is the term that is used to the life cycle that happens in plants and algae.
Explanation:
Answer:
B.It refers to the haploid and diploid phases of the plant life cycle.
Explanation:
Which of the following actions would decrease global warming?
Select one:
Decreasing the amount of methane in the air.
Increasing the amount of oxygen in the air.
Increasing the amount of water vapor in the air.
Decreasing the amount of nitrogen in the air.
Answer:
Decreasing the amount of methane in the air
Explanation:
Methane is a powerful greenhouse gas, which absorbs the sun's heat and doesn't allow it to escape therefore contributing to global warming
Decreasing the amount of methane in the air would decrease global warming. Therefore, option (A) is correct.
What is global warming?Global warming is the gradual increase in the Earth's average surface temperature, primarily due to the buildup of greenhouse gases in the atmosphere, such as carbon dioxide and methane. These gases trap heat and prevent it from escaping into space, leading to a warming effect on the planet.
The consequences of global warming are far-reaching and potentially catastrophic, including rising sea levels, more frequent and severe weather events, loss of biodiversity, and impacts on human health and well-being.
To address global warming, it is essential to reduce greenhouse gas emissions by transitioning to cleaner and more sustainable sources of energy, improving energy efficiency, and adopting more sustainable land use practices. Addressing global warming requires a collective effort from individuals, communities, businesses, and governments around the world.
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3
Cross a female with normal color vision, but whose father was colorblind, with a man who has
colorblindness. What percentage of the females will be
Answer:
There's a 50% chance
May it Help~
Choose the statements that are TRUE about Surface Tension..
a. It is a measure of how difficult it is to break the surface of a liquid.
b. It causes water drops to be nearly round (perfect spheres in zero gravity situations!)
c. It helps keep water flowing through a living thing.
d. It occurs because water molecules are bonded to other water molecules and you have to break that bond to break them apart.
Answer:
d
Explanation:
Action Potential: Relative refractory period
In a neuron, there is a period of time called the absolute refractory period where it is impossible for an action potential to
begin. This corresponds to the change in membrane potential from +30 to -70 mV, or the repolarization phase. Towards the
end of the repolarizing phase, there is a relative refractory period where it is difficult, but not impossible, for another action
potential to begin. Using the time slider function, which of the following segments in the neuron would correspond to a
relative refractory period?
A second action potential can be triggered during the relative refractory phase, but it will need a stronger stimulus to do so than the first time. Refractory times are brought on by the inactivation gate of the Na+ channel.
What Action Potential related to Relative refractory period?The axon has a tougher time producing successive action potentials during this time period, which is referred to as the refractory period, as a result of these transient alterations.
As a result, the refractory period restricts the quantity of action potentials that a certain nerve cell can generate in a given amount of action potentials time.
If enough powerful stimuli are applied to the neuron after the absolute refractory time, Na+ channels start to recover from inactivation and the neuron may respond once again by generating action potentials.
Therefore, A stimulus that is stronger than usual is required to generate neuronal activation during the relative refractory period.
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Need an answer before 1:59 tonight. Therefore, they could have existed on earth and fueled chemical evolution. In your own words describe this concept.
write 5 major facts in complete sentences about pedigrees
Which of the following is NOT an example of homeostasis?
red blood cells transferring carbon dioxide to the lungs to be exhaled
the digestive system breaking food into smaller pieces that can enter the cells of the body
a virus entering a cell and damaging the organelles
mitosis
Answer:
mitosis
Explanation:
What is the name of the distal part of the radius?
Answer:
Explanation:
Distal Region of the Radius
In the medial surface, there is a concavity, called the ulnar notch, which articulates with the head of ulna, forming the distal radioulnar joint. The distal surface of the radius has two facets, for articulation with the scaphoid and lunate carpal bones.
Answer:
Distal radius it is the end of the wrist
How have volcanic emission contributed to the formation of atmosphere?
Answer:
Volcanic emission
Explanation:
Volcanoes can impact climate change. During major explosive eruptions huge amounts of volcanic gas, aerosol droplets, and ash are injected into the stratosphere. ... But volcanic gases like sulfur dioxide can cause global cooling, while volcanic carbon dioxide, a greenhouse gas, has the potential to promote global warming.