An independent and significant dementia risk factor is intracranial atherosclerosis.
Serious health issues can result from cerebral arteriosclerosis. Blood flow to the brain can get obstructed and result in stroke if the artery walls are too thick or if a blood clot gets wedged in the confined space. Inequal thickening and hardening can cause bulges in artery walls (called aneurysms).
Memory, motor function, visual perception, attention, and executive function are just a few of the specific cognitive functions that are decreased as a result of carotid atherosclerosis.
According to current theories, the aberrant protein buildup in and around brain cells is what causes Alzheimer's disease. Amyloid is one of the proteins involved, and deposits of it create plaques around brain cells. The second protein is tau, and deposits of it develop.
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The elephant reproduces
sexually. If the parent cells
have 38 chromosomes, how
many chromosomes do the
elephant sex cells have?
Answer:
5 sex cells
Explanation:
Humans have 46 chromosomes in each of their body cells. Jason has a small cut on his right arm and his body cells are undergoing mitosis to repair the damage. How many chromosomes will be in each new body cell after cell division?
Answer:
23
Explanation:
Multiple sequence alignment is a method that can be used to compare three or more biological sequences to determine homology and evolutionary relationships between species. This is done by selecting a target protein or DNA sequence (consensus) and comparing it across other species’ sequences. Conservation is a statistical analysis that describes how much the target sequence is observed across the selected group of species. A higher conservation score indicates that the protein or gene is more ancient or more critical across species.
Construct a cladogram using the multiple alignment of a protein sequence found below.
Answer:
here is the answer key
Explanation:
A scientist examines a bacterium and learns that it carries a gene that makes it resistant to antibacterial medication. Because bacteria reproduce through________, it’s likely that ______of the offspring created by bacteria with this gene will be resistant to the medication.
(the first blank options) (The Second blank options)
Binary fission all
Mitosis half
regeneration none
Answer:
1 = mitosis 2 = half (maybe)
Explanation:
Which of the following is NOT a way that fungi
reproduce?
A. asexually through spores dropping and growing
B. a piece of the hyphae breaks off, lands, and starts growing
C. the spores travel by wind to a different mushroom that gets
fertilized and sprouts a new mushroom
D. the hyphae of a plus and minus fungi come together and the
nuclei fuse and start to grow together
Can someone please help me
Answer:
The question A. is "period"
The question Below known as B. is "Group"
Explanation:
"You must not fear, for the answers are actually quite near."
(like in the paper)
(HELP ASAP)
Cystic fibrosis is one of the most common genetic diseases in America. It is estimated
that 1 in 23 Americans are carriers for Cystic Fibrosis. Cystic Fibrosis is a recessive trait
that follows Mendel's Law of Dominance.
Answer ALL parts of the free response below - be sure to use vocabulary and explain your
response in detail:
A. Explain what Mendel's Law of Dominance means
B. Explain how 2 parents who do NOT have Cystic Fibrosis could have a child with cystic
fibrosis.
Answer:
a.When an organism is heterogeneous for a trait, it expresses only the dominant allele
b. A child will be born with CF only if they inherit one CF gene from each parent. A person who has only one CF gene is called a CF carrier. They are healthy and don't have the disease. But they are a carrier of the disease.
Explanation:
a.In other words, the dominant trait always masks the recessive trait.
b.A parent can be a CF carrier, and pass the CF gene on to their child.
Can someone please correct me or tell me if I’m correct please that will be lovely
Answer:
A
Explanation:
Destruction of habitat is not going to preserve the habitat.
How does nectar increase the ability of plants to reproduce?
Answer:
nectar is very sweet juice which attracts insects.
when those insects suck the nectar the pollen grains sticks to the body of those insects and then when they fly and sit on the other flowers and then those pollen grains are then transferred to the stigma of that flower which then forms a zygote and then forms a new flower.
and this is how nectar helps to reproduce
Many scientists are worried that the increased amount of carbon dioxide in Earth's atmosphere will _____
A. make it harder for animals to breathe
B. use up all our fossil fuels
c. cause Earth to warm up unnaturally
D. make green plants grow too fast
PLEASE HELP!
Use two examples for plants to explain how the development of new technologies such as radioisotopes has increased our knowlegde of reactions in plants.
Answer: The radioactive isotopes can be used to track many physiological functions and chemical reactions occurring within the cells of the living organisms including plants.
Explanation:
Phosphorus uptake by the plants: Phosphorus is an essential mineral required by the plants for their growth and metabolism. The radioactive phosphorus-32 can be used to track back the rate at which the plant absorbs the phosphorus from the soil. This can help scientists to identify plants that can absorb phosphorus more quickly.
Pesticides levels in the plants: The pesticides levels in the plants can be traced by using radioisotopes such as chlorine-36. This can be used to trace the fact that how much of pesticide is present in the soil and how much of it is utilized by the plants. This is helpful identifying the fact that which pesticide is useful for the growth of the plants.
Study the image, and then choose the statement that best describes the image.
Answer:
The nitrogen system aka what we have
Explanation:
4.) The more different kinds of living things in an ecosystem the more successful it is. This is called ___________.
use this vid https://youtu.be/-Sybgof-X2k
Answer: isn’t it climax community?
Explanation:
I'LL GIVE YOU BRAINLIEST!!Which is the best definition of air pressure? *
1 point
the weight of the air pressing on everything in the environment
the amount of precipitation in a certain area
the type of clouds in the atmosphere
the amount of water vapor in the air
it's the weight of the air pressing on everything in the environment
Flowers are the ______________ structures of plants.
A. meiosis
B. reproductive
C. motosis
Answer:
B. reproductive
Explanation:
Answer: reproductive
Explanation: flowers contain the reproductive organs of a plant, the stamen (male) and/or pistil, (female)
List the four codes for RNA and show how they are paired.
Answer: adenine (A), uracil (U), guanine (G), and cytosine (C). When this base-pairing happens, RNA uses uracil (yellow) instead of thymine to pair with adenine (green) in the DNA template below.Bases. ... The four bases that make up this code are adenine (A), thymine (T), guanine (G) and cytosine (C). Bases pair off together in a double helix structure, these pairs being A and T, and C and G. RNA doesn't contain thymine bases, replacing them with uracil bases (U), which pair to adenine1.
Explanation:
endocrine glands are called ductless gland give scientific reason
Answer:
their secretions reach the blood directly without ducts
Prozac, Zoloft, and Paxil are called SSRIs because they a decrease the release of oxytocin in the endocrine system in anxiety disorders. b slow the normal reuptake of excess serotonin from synapses in depression. c successfully level the emotional highs and lows of bipolar disorder. d stimulate the release of norepinephrine into the bloodstream in depression. e increase the number of receptor sites for dopamine in schizophrenia.
Answer:
b slow the normal reuptake of excess serotonin from synapses in depression
Explanation:
Serotonin is a neurotransmitter that transports signals or messages between neurons.
Although other neurotransmitters are involved in depression affection, alteration in serotonin levels is an important cause of the disease.
Affected people that express depression show an alteration of the normal serotonin levels in the interneuronal space. There is a noticeable decrease in molecule concentration due to an increase in its reuptake.
The substances used in the depression treatment belong to the SSRI group. SSRI means Serotonin Selective Recapture Inhibitor. It means that these substances inhibit the reuptake of serotonin that usually occurs in affected patients.
ISSR treats depression by enhancing serotonin levels and its transmission by blocking the reuptake in neurons. In this way, there is more serotonin available to improve communication between neurons.
ISSRs are selective because their principal target is the serotonin molecule and not the other neurotransmitters.
During which stage of the cell cycle do Mitosis and Cytokinesis occur? (I will give brainliest?
Answer:
Mitosis occurs in Interphase and cytokinesis occurs in Anaphase
Explanation:
How is the lower respiratory system related to the
circulatory system?
The lower respiratory system moves oxygen
into the blood; the circulatory system delivers
blood to the body.
The lower respiratory system delivers blood
to the body; the circulatory system moves
oxygen into the blood.
The lower respiratory system moves oxygen
into the blood; the circulatory system delivers
air into the lungs.
Answer:
b
Explanation:
Answer:
It's A
Explanation:
Help me please!
What information can be gained about the structure and function of plants by ring barking?
Answer:
About its different layers and their functions in the plant body.
Explanation:
By studying the structure and function of the plants by ring barking, we find out that the ring barking is very important for the plant because it provides support as well as protection to the inner part of the stem against environmental conditions such as temperature and intense light etc. These barks are responsible for the storage of water which can be used during drought conditions. This ring barking provides information about different layers of stems such as periderm, cortical and phloem tissue that has a specific function in the plant body.
A scientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. Which biological component would be best to use as a model for the pill’s function?
bacteriocytes
phagocytes
complement system
antibodies
Answer:
thx but the answer is D
Explanation:
A pill formulated to attack a specific type of bacteria that infects the throat would best follow the operations of antibodies.
What are antibodies?Antibodies are chemicals produced by the immune system of the body in response to external attacks by foreign substances.
In other words, antibodies are like weapons deployed to defend the body from external attacks.
A pill designed to attack a specific type of bacteria that infects the throat will be most effective if it follows the operations of antibodies.
Since different antibodies are produced for different external invasions, the pill will also be most effective by being specific in its actions.
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What is the name for all the plants and animals that live together in a habitat?
Answer:
Biotic community
Explanation:
Definition of biotic :living organisms in the ecosystem .Example Frog,fish,and etc.
Definition of Abiotic: Nonliving things in the ecosystem. Examples wind,water,and etc.
A significant shift in the environmental conditions over a very short period of time caused most groups of dinosaurs to become extinct because of their inability to adapt fast enough. This allowed for a variety of niches to open providing current organisms new opportunities. Mammals were one group of organisms that took advantage of this environmental change, filling niches that were unoccupied and eventually developing new species that were specifically adapted to their particular environment. Which of the following is a term that most correctly describes this process?
A. Adaptive radiation
B. Gradualism
C. Convergent evolution
D. Genetic drift
Answer:
A. Adaptive radiation
Explanation:
Give two examples of pioneer species.
Answer:
Two examples of pioneer species are lichens and bacteria
Explanation:
helps it helps
have a great day
When tectonic plates are colliding, what is the geological event that will NOT occur at a convergent boundary?
Question 2 options:
Mountains
Volcanoes
Volcanic Island
Rift valley
The thin outer shell of Earth is broken into large pieces which is called as tectonic plates. Rift valley is not the event of collision between tectonic plates.
What is rift valley?Rift valley is the low land between highlands and mountain ranges created by geographical rift.
These can be formed on both land and deep oceans, where they are made by seafloor spreading process.
It is caused when two tectonic plates moves apart from each other.
Thus, the correct option is D.
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What does the latest DRC outbreak have in common with the West
Africa outbreak of 2014-2016
Answer:
IF YOU WANT MORE EXPLANAION YOU CAN MESSAE ME OK
Explanation:
On November 21, 2014, the WHOexternal icon reported that 42 days had passed since the last Ebola case tested negative twice and was discharged from a hospital in the Democratic Republic of the Congo (DRC). According to WHO recommendations, an Ebola virus disease outbreak in a country can be declared over once 42 days have passed and no new cases have been detected.
I HOPE THIS WILL HELP YOU
BEBE
Answer the lab question, "What is the effect of the
inheritance of one trait on the inheritance of a
second trait?" with a hypothesis. Remember that
you can either assume that the two genes are
independent or that they are linked. What results
would you expect in either case?
Hypothesis:
DONE
Answer:
Hypothesis: An inherited characteristic is not able to interfere in the inheritance of another characteristic in the same organism.
Explanation:
An inherited feature does not interfere with another inherited feature. This is because the genes are inherited by joining the gametes, which contain the genes of the organism's parents. Each gene is distributed in gametes completely randomly and independently. Inheritable characteristics are represented by these genes. In this way, genes are inherited independently, they do not interfere with inheritable characteristics. However, in genes inherited together, we can consider that only one inheritable trait would be presented, since these genes would interfere in the construction of another trait. This can be studied through hybrid crossings in living beings.
For anybody with this question
Here is your answer
1
3
4
Below shows a process that occurs in cells. The type of building blocks represented by the letters A, B, and C in this process are:
A: Nucleotides
B: Codons
C: Amino Acids
D: Nitrogen bases