Answer:
B. Red blood cell
Hope it helps!!!brainliest pls!!!Answer:
Red blood cellExplanation:
Red blood cell can be seen with an unaided eye
Explain what role spindle fibers play in the dividing cells.
Answer:
Spindle fibers move chromosomes during mitosis and meiosis to ensure even chromosome distribution between daughter cells.
Answer:
Explanation:Spindle fibers are filaments that form the mitotic spindle in cell division, i.e. mitosis and meiosis. They are chiefly involved in moving and segregating the chromosomes during nuclear division. Spindle fibers are made up of microtubules.
In a human diploid cell there are _______ pairs of homologous chromosomes.
Answer:
23 pairs
Explanation:
there are 46 chromosomes, but 23 PAIRSPLEASE HELP WILL MARK BRAINLIEST Susana heats up a sample of red crystals. While the sample is being heated, a gas is released, and a blue powder is left after the heating. Is the sample of red crystals an element or a compound? Explain you answer. PLEASE MAKE THE ANSWER SCHOOL APPROPRIATE
Answer:
its a compound because it was broken down into a gas and turned into a blue powder and elements cant be broken down into simpler substances.
An area of raised land in the middle of a river. Mountains and glacier in the distance. A geologist finds this ridge of sediment while out in the field. The geologist notices a glacier in the distance. What feature is this ridge? kettle loess moraine delta.
The feature of this ridge is Moraine, which is formed by the reformation of glaciers.
What do you mean by Ridge of sediments?
It is a type of erosion that leads to the formation of sediments in the shape of grains.
Moraine forms a ridge-like structure due to the gradual deposition and weathering of sand, stones, pebbles, and other compounds. Moraines are also found over the surface of glaciers in sheet form.
Therefore, the feature of this ridge is Moraine, which is formed by the reformation of glaciers.
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Answer: C moraine
Explanation: i just did it and got it right :)
What could a dog living now and a cat living thousands of years ago have in
common?
O A. They have the same bone structure.
B. They have some of the same matter.
C. They have the exact same DNA.
ОС
D. They have the same amount of energy.
Answer:
O A. They have the same bone structure
Explanation:
Correct me if I'm wrong
Which is an example of a group of cells with a common structure and function?StomachMuscle tissueMitochondriaNucleus
Muscle tissue is an example of a group of cells with a common structure and function.
Option b is the correct answer
A heritability of .30 means that ________ of the observed phenotypic variation is attributable to ________.
A heritability of 0.30 means that portion of the observed phenotypic variation is attributable to genetic effects.
What is Heritability?Heritability is the portion of observed phenotypic variation that occurs as a result of genetic effects. The breeding strategy can be defined in terms of: Heritability, which is not just a property of the character. Of the population.
With this information, we can conclude that a heritability of 0.30 means that a portion of the observed phenotypic variation is attributable to genetic effects.
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2. Explain what free radicals are and why they are important.
Answer:
Free radicals are atoms or molecules with an odd (unpaired) number of electrons. They can be formed when oxygen interacts with certain molecules. Many free radicals are necessary for life and are used by our body's cells to kill invading bacteria.
Explanation:
A balance between free radicals and antioxidants is necessary for proper physiological function. If free radicals overwhelm the body's ability to regulate them, a condition known as oxidative stress ensues. Free radicals thus adversely alter lipids, proteins, and DNA and trigger a number of human diseases.
Someone please help!! The image is below
Answer:
1- Substance X is needed by the cell. If Substance X wasn't there then the cell may not be balanced out.
2-It depends. If the cell becomes larger then Substance Y will go into the cell; On the other hand if the cell shrinks or becomes smaller Substance Y will move out of the cell.
What are proppants? What is there relationship to the process of fracking?
Which would you expect to find in both a tree fern (a fern / monilophyte) and a pine tree (a conifer)
Answer:
yes
Explanation:
because it is trust me
The EMT shows that he can accurately differentiate placenta previa from abruptio placenta when he states:
When do the electron and molecular geometry of a molecule match?.
Electron and molecular geometry of a molecule matches when : The central atom has no lone pairs of electrons
Electron geometry vs molecular geometry
The electron geometry of an atom is the various arrangement of the electrons in an atom while the molecular geometry of an atom is the 3D structure of atoms in a given molecule.
For the electron and molecular geometry to be the same the central atom has to possess no lone pairs of electrons.
Hence we can conclude that Electron and molecular geometry of a molecule matches when : The central atom has no lone pairs of electrons.
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Which blood vessel blockage cause heat attack
Here is your Answer:-
A heart attack can occur when there is blockage in the coronary arteries, which supply blood to the heart. When a blockage affects the brain, this is called an ischemic stroke. This type of stroke can be treated effectively with strong blood thinners.
Identify the parts in this model of the carbon cycle.
Answer:
answer is long but wright this in exam it's so explained
Explanation:
The carbon cycle depicts the natureal flow of the element carbon through the atmosphere in different forms.there are six main processes in the carbon cycle. photosynthesis, reparation,exchange, sedimentation, extraction,and combustion. most of these deal with carbon in the form.
what happens to food after it is ingested
types of volcanoes and volcanic
Answer:
extinct
dormant (Haven't erupted in 4/6yrs
Humans and Chimps have over 92% of the same DNA which means we are closely related and have common ancestry. What type of evidence is this?
a. genetic
b. observable
c. fossil record
d. structural
Answer:
a. genetic
Explanation:
DNA holds genetic information in the body
The type of evidence for common ancestry is genetics. The correct option is A.
What is genetics?The research of genes and inheritance. Genetic characteristics and qualities (such eye color and a higher likelihood of contracting a certain disease) are passed from parents to children through heredity.
Learning more about promoting health and preventing disease requires an understanding of genetic variables and genetic abnormalities.
The likelihood of having a kid with a birth defect, a developmental disability, or a condition like cancer or heart disease has been linked to several genetic abnormalities.
Since humans and chimpanzees share more than 92% of their DNA, this indicates that we are closely related and have a common ancestor. Genetics is the type of proof supporting this shared ancestry.
Thus, the correct option is A.
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Synaptic vesicles contain neurotransmitters that are released by ________ when the action potential arrives.
Answer:
fuse with the plasma membrane
Explanation:
-When an action potential arrives at the synaptic terminal, acetylcholine-filled vesicles fuse with the plasma membrane. This releases acetylcholine into the synaptic cleft.
If plant cells are grown on media containing radioactively labeled thymine for one generation, where will radioactively labeled macromolecules be detected?.
Answer:
nucleus mitochondria and chloroplasts.
Which type of eukaryotic unicellular microorganisms are more animal-like in that they lack a cell wall and obtain nutrients by engulfing food particles
Answer:
Protozoa are the animal-like protists. They are unicellular eukaryotes that lack cell walls. They are heterotrophic and feed on other microorganisms or on organic particles.
Fungi were once classified in the same kingdom as plants. Which characteristic of fungi resulted in them being placed in a separate kingdom?.
In which stage are virus protein constructed to make new viruses?
A) entry
B) assembly
C) attachment
D) release
In which stage is a created?
A) release
B) attachment
C) release
D) entry
In which stage does virus connect with the host cell’s receptors?
A) attachment
B) entry
C) assembly
D) release
Bacteriophages are virus
That infect bacteria
That infect humans
That infect animals
None of the above
Answer:
1B
2D
3A
4 bacteria
Explanation:
What does the fine adjustment knob do on a microscope.
A chronic condition known as _______ is characterized by episodes of bronchoconstriction coupled with wheezing, coughing, shortness of breath, and excess pulmonary mucus.
Answer:
Asthma
Asthma is often accompanied by the overproduction of phlegm and the other symptoms are conducive to Asthma.
2. Using the collected data as evidence, explain how the wavelength, or color, of light affects the rate
of photosynthesis for each experimental group. Make sure to CITE THE EVIDENCE in your
explanation. (14 pts)
a. Dark -
b. White-
c. Red-
d. Blue-
e. Green-
f. Sunlight-
Answer:
for the longest it’s red, shortest is violet.
Explanation:
The longest wavelength of red light is 700nm, whereas the shortest wavelength of violet light is 400nm. The lower frequency of red light is also found in violet light, whereas the higher frequency of violet light is seen in red light.
how, can examining specimens under a microscope help scientists classify an organism?
The organism observed is most likely an animal because it uses pseudopods to move and is unicellular which are both characteristics of animals. A scientist discovers a unicellular organism when examining a pond sample under a microscope.
describe rotating high winds what are they
Answer: A whirlwind is a weather phenomenon in which a vortex of wind (a vertically oriented rotating column of air) forms due to instabilities and turbulence created by heating and flow (current) gradients. Whirlwinds occur all over the world and in any season.
Explanation:
The mouth parts of a mosquito are in the shape of a needle, which allows it to pierce tissue and suck out fluids. What is the purpose of the structural adaptation?
A.to blend in with surroundings
B. To defend agianst predators
C. To move in the environment
D. To to botanical food resources
Answer:
D
Explanation:
The mosquito's mouth, also called a proboscis, isn't just one tiny spear. It's a sophisticated system of six thin, needlelike mouthparts that scientists call stylets, each of which pierces the skin, finds blood vessels and makes it easy for mosquitoes to suck blood. And these bugs know just where to bite.
________________ is the process when two identical DNA molecules are produced from one original DNA molecule
Answer:
Mitosis
Explanation:
Mitosis results in 2 identical daughter cells.