Answer:
Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved. Fossils provide evidence of long-term evolutionary changes, documenting the past existence of species that are now extinct.
To give one classic example, the forelimbs of whales, humans, and birds look quite different on the outside. That's because they're adapted to function in different environments. However, if you look at the bone structure of the forelimbs, you'll find that the organization of the bones is remarkably similar across species. It's unlikely that such similar structures would have evolved independently in each species, and more likely that the basic layout of bones was already present in a common ancestor of whales, humans, and birds.
The presence of a cholesterol in the plasma membrane of some animals
Answer:
The amount of cholesterol in animal plasma membranes regulates the fluidity of the membrane and changes based on the temperature of the cell's environment. In other words, cholesterol acts as antifreeze in the cell membrane and is more abundant in animals that live in cold climates.
What type of immune response would occur if bacteria invaded your lymph?
Explanation:
The lymphocytes would quickly gather around the infected area (lymph) to immediately destroy the bacteria.
Label the process in the carbon cycle
Answer:
Photosynthesis
Explanation:
uhmm i think
Differentiate between positive and negative mass selection.
Answer:
Positive selection involves targeting the desired cell population with an antibody specific to a cell surface marker (CD4, CD8, etc.). ... Negative selection is when several cell types are removed, leaving the cell type of interest untouched.
What is the function of a plasma membrane that all living cell depends on
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
The process of mitosis ensures that each daughter cell has a copy of every chromosome present in the parent cell. What is the use of this process?
Answer:
option C is correct... the third one
What are the two most common types of secondary structure found in proteins?
1- α-helices and β-arrays
2- double stranded helices and β-arrays
3- α-helices and β-pleated sheets
4- β-spirals and α-turns
Answer:
1- α-helices and β-arrays
An experienced short-order cook can remember each order called to her for only the short length of time it takes to begin to cook. After 30 seconds, she must refer to a written order slip. This is an example of the limited duration of___?
1) chunking memory
2) sensory storage
3) short-term memory (STM)
4) long-term memory (LTM)
An experienced short- order cook can remember each order called to her for only the short length of time. After 30 seconds, she must refer to a written slip.
This is an example of short- term memory(STM).
What is short-term memory (STM) ?
Short- term memory is the information that a person is currently knowing or aware of.
This information in STM can last from 30 seconds to six months.
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What term describes the total mass of trees, shrubs, herbaceous plants, and grasses present in a given forest on a given day
The term best describes the mass of the above-ground vegetation in a given forest would be the standing crop.
The standing crop of a forest specifically refers to the mass of all the living plant materials present in the forest at a particular time ranging from the biggest of trees, shrubs, herbs, to the tiniest of grasses.
Standing crop is as opposed to biomass in that the latter refers to the total mass of organic materials from the living and dead plants derivable from the forest.
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An individual with androgen insensitivity syndrome will:
A. Not be feminized at puberty
B. Prefer a female sexual partner
C. Not function sexually as an adult
D. Have female external genitalia
Answer:
D I think. i am not completely sure.
An individual with androgen insensitivity syndrome will have female external genitalia, which is option D, as androgen insensitivity syndrome (AIS) is a genetic condition in which an individual's cells are unable to respond to androgens.
What is androgen insensitivity syndrome?Androgen insensitivity syndrome (AIS) is a genetic disorder in which an individual's body is unable to respond properly to male sex hormones, called androgens. The condition is caused by mutations in the gene that codes for the androgen receptor, which is a protein that binds to androgens and enables them to activate certain genes. In individuals with AIS, the androgen receptor either doesn't work at all or doesn't work properly, which leads to a range of physical changes that can vary in severity depending on the degree of androgen insensitivity.
Hence, An individual with androgen insensitivity syndrome will have female external genitalia, which is option D.
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(b) The pGoG protein is known to block the G, to S transition in the cell cycle. Explain why this prevents
miosis from happenina in he cell
(c) Before treating melanoma cells with capsaicin, researchers pretreated the cells with an inhibitor of
calcineurin. Predict the effect of this pretreatment on the ability of capsaicin to induce apoptosis by the
pathway shown in Figure 2. Provide reasoning to justify your prediction.
(d) Researchers claim that many cancers include a mutation in the gene encoding pGoG. Support the
researchers claim.
Answer:
Explanation:
c. The pretreatment on the ability of capsaicin to induce apoptosis effects in NFAT2 to block ATF3 where it activates ATF3 to inhibit pGoG from inducing apoptosis.
d.AFT3 usually stops pGoG from induce apoptosis and so cancer develops because of apoptosis unable to do it's job and cells just keep dividing which we call a tumor
In what type of organism is cell differentiation
necessary?
A. prokaryotes
B. kingdom archaebacteria
C. single-celled organisms
D. multi-cellular organisms
If you were born November 16, 1986 how old are you today
Answer:
2021-1986 = 35 years old
Explanation:
What are two substances that need to be transported out of animal cells, in order to survive
3 facts about angiosperms
Answer:
Angiosperms are the most advanced and beneficial group of plants. They can grow in various habitats as trees, herbs, shrubs, and bushes. The angiosperms originated about 250 million years ago and comprise 80% of the earth. They are a major source of food for humans and animals.
Explanation:
The 3 facts about angiosperms includes plant life, endosperm inside their seeds, and the manufacturing of end result that incorporate the seeds.
What is the difference between Gymnosperms and Angiosperms?Gymnosperms. Angiosperms, additionally referred to as flowering flowers, have seeds which are enclosed inside an ovary (normally a fruit), even as gymnosperms don't have any plant life or end result, and feature unenclosed or “uncovered” seeds at the floor of scales or leaves. Gymnosperm seeds are regularly configured as cones.
The tallest angiosperm is the Australia’s mountain ash tree. They have the peak of 330 toes or one hundred m.Watermeal is the angiosperm with the smallest size. It is ready 0.08 inches or 2 millimeters.More than eighty percentage of the world’s residing inexperienced flowers are angiosperms.Angiosperms emerged approximately 200~240 million years ago, after being diverged from its predecessor, gymnospermsRead more about the angiosperms:
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is broccoli a dicot or monocot?
Answer:
Broccoli is a dicot
Explanation:
I looked it up on the internet :)
Another name for 23.5 degrees south latitude is?
a.) The prime meridian
b.) The equator
c.) Tropic of cancer
d.) tropic of capricorn
Answer:
D
Explanation:
Answer: D tropic of capricorn
Explanation:
I got that right in class. Please mark brainliest it means a lot and thanks! <3
Why is sustainable use of natural resources important?
to ensure that natural resources are available for future generations
to help make daily life simpler by providing what every person needs
to encourage scientists to make new and elaborate discoveries
O to prevent the exchange of resources from one region to another
Answer: It is important that we use our natural resources so that we use any bad things for our earth
Explanation:
Sustainable use of natural resources is important to ensure that natural resources are available for the future generations.
Why sustainable utilization of natural resources is important?It is important to use sustain natural resources for the benefit of entire human population.It can improve the quality of lives, conserve natural resources for next generation and maintains the ecosystem.To know more about sustainable use of natural source :
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Help?
Write the names of the reactants of photosynthesis below
______,_______and_____
________________________ happen when pairs of bonded bases in a double strand of DNA get replaced with different pairs.
_________________________ happen when extra base pairs are included in an existing DNA sequence.
_________________________ happen when base pairs in an existing DNA molecule get removed from it.
Fill in the blanks correctly
Answer:
Explanation:
A base pair is two chemical bases bonded to one another forming a "rung of the DNA ladder." The DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). 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.
I need help question 14
Answer:ok
Explanation:
Quante tipo di carte geografica ci sono
Answer:
According to the ICSM (Intergovernmental Committee on Surveying and Mapping), there are five different types of maps: General Reference, Topographical, Thematic, Navigation Charts and Cadastral Maps and Plans.
How many different types of tissue cells are there in humans?
A. 2,000
B. 20,000
C. 20
D. 200
Answer:
200
.........................................
HEEEEEEEEEEEEEEEEELLLLLLLPPPPPPPPPPPPPP
DNA and RNA contain nucleotides that code for what?
A Carbonic Acids
B Amino Acids
C Hydrochloric Acids
D Lactic Acids
Answer:
your answer is definitely B: Amino Acids
Explanation:
Answer:
B
Explanation:
ASAP Brainly, right here right now!
Examine the comparison between a eukaryotic cell and a prokaryotic cell. Which two lettered choices provide a comparison of structures that encode genetic information for the cells? A) A and D B) B and D C) C and D D) None of these choices, as prokaryotic cells do not contain DNA
I am almost certain it is A) a and d) but I need reassurance.
Answer: c & d
Explanation:
C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.
What are Prokaryotic and Eukaryotic cells?Prokaryotic cells are single-celled microorganisms known to be the earliest on earth. Prokaryotes include Bacteria and Archaea. The photosynthetic prokaryotes include cyanobacteria that perform photosynthesis. A prokaryotic cell consists of a single membrane and therefore, all the reactions occur within the cytoplasm which can be free-living or parasites.
Eukaryotic cells are defined as having a nucleus enclosed within a nuclear membrane and form large and complex organelles. Protozoa, fungi, plants and animals all contain eukaryotic cells which are classified under the kingdom Eukaryota.
Thus, C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.
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1. Based on your observations, is it possible that bacteria can thrive in
a sealed can and cause vegetables to spoil?
Answer:
Explanation:
When bacteria and other nasty pathogens are heated beyond a certain temperature (usually the boiling point of water – 212 degrees Fahrenheit), they are neutralized or killed. Since the can is sealed before this heating process occurs, no additional bacteria or spores can make it into the can.
what are some drawbacks to using mice in genetic studies?
Answer:
One drawback to using transgenic, knock-in, and knock-out mice to study human diseases is that many disorders occur late in life, and when genes are altered to model such diseases, the mutations can profoundly affect development and cause early death.
hope this helps
Explanation:
Genetically altered mice have served to recapitulate human diseases, including cancer, glaucoma, heart disease, and diabetes. However, despite their genetic similarity to humans, mouse models are criticized for their failure to accurately mimic human disease phenotypes.
Why it's bad to use mice as an experiment:
The use of mice as model organisms to study human biology is predicated on the genetic and physiological similarities between the species. Mice are less reliable as models of human disease, however, because the networks linking genes to disease are likely to differ between the two species.
Have a great day! :D
the cell that is infected by a virus is called
Answer:
Via cytotoxic cells. When a virus infects a person (host), it invades the cells of its host in order to survive and replicate. Once inside, the cells of the immune system cannot 'see' the virus and therefore do not know that the host cell is infected.
Explanation:
1. In the digestive system, where are nutrients absorbed?
A: Small intestine
B: Large intestine
C: Or Liver
2. In the circulatory system, what type of vessels are able to exchange materials by passive transport?
A: Capillaries
B: Arteries
C: Veins
3. Which system controls all other organ systems?
A: Endocrine
B: Nervous
C: Respiratory
4. How does the integumentary system aid with homeostasis?
A: Controlling body temperature
B: Both A and B
C: Getting rid of excess salt through sweat
5. Which system is in charge of producing offspring?
A: Muscular
B: Urinary
C: Reproductive
6. Bones, cartilage and ligaments are all structures in what organ system?
A: Skeletal
B: Endocrine
C: Circulatory
7. Which of the following statements about the circulatory system is NOT true?
A: The liver is used to clean blood and remove any wastes and excess water/salts.
B: The endocrine system uses your blood to carry hormones around the body.
C: it delivers nutrients, gases and other materials throughout the body.
Answer:
1. Small intestine
2. A. Capillaries
3. B. Nervous system controls all other organ systems.
4. A. Controlling body temperature.
And hydration.
B. Producing sweat to regulate body temperature and get rid of waste.
5. C. Reproductive system.
6. Skeletal system
7. A
Explanation:
Why is the element carbon so versatile?
Answer:
C.
Explanation: can form many different types of structures and it's stable
Explanation:
C ...................
