Answer:
a
Explanation:
:)
what happens to the light coming out of a convex lens
which reproduction uses non reproductive plants of a plant to produce new plants
Answer:
Vegetative propagation
Explanation:
Vegetative propagation does not require seeds or spores. Instead, offspring grow from a part of the parent plant.
why is it important to save energy in our daily lives
Answer:
So you can be more active and do different things that need energy
Explanation:
Having energy is an important part of daily life. Without energy, the human body would not be able to go throughout the day without being tired and without their muscles and bones hurting.
How do the posterior pituitary gland and the anterior pituitary gland differ in structure ?
The anterior pituitary receives signalling molecules from the hypothalamus, and in response, synthesizes and secretes seven hormones. The posterior pituitary does not produce any hormones of its own; instead, it stores and secretes two hormones made in the hypothalamus.
Answer:
they differ like
Explanation:
The anterior pituitary receives signalling molecules from the hypothalamus, and in response, synthesizes and secretes seven hormones. The posterior pituitary does not produce any hormones of its own; instead, it stores and secretes two hormones made in the hypothalamus.
what's the fear of lizards Called?
Answer:
Herpetophobia is a fear of reptiles. People with herpetophobia are most often afraid of reptiles like snakes and lizards. ... If you have a specific phobia, you feel an overwhelming sense of fear or anxiety about something. There are many different types of specific phobia.
Explanation:
forest plant nurseries will likely work with state and federal agencies
Answer:
true
Explanation:
Answer:
If this is a true or false question it would be true.
Explanation:
Forest plant nurcries have an important job of helping and protecting forests and they are used by federal agencies to learn more about how to protest these plants.
If a DNA molecule is made up of 14% Thymine, theoretically, what percentage would be made up of Guanine?
Answer:
I expect to find
Explanation:
A=30% C= 20% T = 36% G=14%
a retionship where both species benefit is called
Answer:
Mutualism is a symbiotic relationship in which both species benefit.
Explanation:
6. The three main regions of the brain that receive and process information are the cerebrum, the cerebellum, and the ____________________________.
Which explanation is best supported by the numbers in the chart?
Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs.
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Overhunting of lion and cheetah populations has led to a decline in the food source population.
Lion and cheetah populations compete for the food source of zebras, and cheetahs outcompete lions.
Answer:
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
The decrease in zebra population also decreases the population of the predator lion and cheetah because both predators depends on zebra for their survival. Both predators used zebra as a source of food for their growth and survival so if there is high availability of zebra so the population of Lions and cheetah also increases while on the other hand, if there is decrease in zebra population, the population of lion and cheetah also decreases because of less available food for them.
Answer:
B) The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
2021 edge :)
What structure is most likely found in both viruses and cells
Answer: capsid
Explanation:
Answer: Caspid
Explanation: Explanation: Protein is the structure that is found in both virus and cells.
A star is bigger than a solar system.
O True
O False
false because there are millions of stars in the solar system so they can't be big if that many are in it :)
Answer:
False
Explanation:
A solar system is composed of a star and planets. The star is what makes a solar system a solar system, but a solar system is a star and other planets.
Is there anything in the world that isn't made of cells?
HELP ASAP PLZ!!
Answer:
Instead of cells, a non-living thing is made up of elements or compounds that form from chemical reactions. Examples of non-living things are rocks, water, and air.
Explanation:
hope this helps:)
Why are drugs bad for people?
Answer:
They cause reactions in your nervous system that arent meant to happen
Which quality of lipids does it demonstrate?
inability to store energy
ability to form chains of nucleotides
inability to break down in water
ability to provide structural support
Answer:
I thinks its d but not sure
Explanation:
Lipids are macromolecules composed of fatty acids. The diagram represents the inability of the lipids to break in the water. Thus, option c is correct.
What are lipids?Lipids are said to be polymers as they are large molecules made of the monomers of the fatty acid chains and glycerol bonded together by chemical bonds. They include oils, fats, steroids, waxes, hormones, phospholipids, etc.
They are energy storage molecules along with carbohydrates and act as messengers in the form of hormones. They store energy in fat cells (adipose) for a longer period of time. They make the component of the cell membrane, blood cells, and cholesterol.
They are soluble in an organic solvent but not in water as it is a non-polar compounds with hydrophobicity and hydrophilicity. They are insoluble and remain intact in the water molecule.
Therefore, option c. the lipids do not break in the water.
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What are some potential solutions to the problems Pavan identifies?
Answer:
below
Explanation:
Waste disposal; We need to recognize the benefits of nature and start preserving nature.
I NEEEEEDDDD HELP PLEASE
Answer:
Proteins.
Explanation:
Genes contain instructions to assemble amino acids in proteins.
Which of the following is an example of a producer-consumer
relationship?
productor?
Worm --> Bird
Leaf --> Tree
Fish --> Bear
Grass --> Deer
Answer:
Grass and Deer
Because Grass is consumer and Deer is producer
During a hot July day, Brian and his friends play football outside. After a while, they are covered in sweat. Brian comments that sweat is just your body’s way of cooling itself. Which systems are involved in your body attempting to maintain homeostasis during high temperatures?
a. Your nervous system sends signals to your muscular system.
b. Your circulatory system gives blood to your respiratory system.
c. Your muscular system attempts to cool your skin through radiation.
d. Your excretory system attempts to cool your skin through evaporation.
Answer: B is correct I had this question too!
Similarly, the cardiovascular, integumentary (pores and skin and related structures), respiratory, and muscular structures paintings collectively assist the frame preserves a strong inner temperature. If frame temperature rises, blood vessels withinside the pores and skin dilate, permitting extra blood to waft close to the pores and skin's surface.
The temperature in the frame varies; in a frame in homeostasis (regular fitness state), the 'core' temperature is maintained inside quite a number 36-37.5.
What is Homeostasis?Homeostasis via way of means of contracting to show chemical electricity into thermal electricity if the frame is cold, it additionally facilitates to preserve homeostasis via way of means of contracting extra or much less frequently so oxygen can get to all cells from the heart.
Thus it is clear that systems are involved in your body attempting to maintain homeostasis during high temperatures your muscular system attempts to cool your skin through radiation.
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A limiting factor is a resource or other factor in the environment that can lower the population growth rate.
A. True
B. False
Cancer cells are essentially cells out of control. They continuously go through Mitosis without stopping causing them to crowd other cells and eventually growing on top of each other forming a lump commonly referred to as a tumor. Based on your knowledge of mitosis what is one way you could develop a drug to treat cancer?
Include in your answer a detailed explanation of what you would do and why (5pts) also include labeled diagrams with your solution (5pts).
Answer:
Introduction
Does cell cycle control matter? If you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes.
Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. For example, inhibitors of the cell cycle keep cells from dividing when conditions aren’t right, so too little activity of these inhibitors can promote cancer. Similarly, positive regulators of cell division can lead to cancer if they are too active. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.
Here, we’ll look in more detail at what's wrong with cancer cells. We'll also see how abnormal forms of cell cycle regulators can contribute to cancer.
What’s wrong with cancer cells?
Cancer cells behave differently than normal cells in the body. Many of these differences are related to cell division behavior.
For example, cancer cells can multiply in culture (outside of the body in a dish) without any growth factors, or growth-stimulating protein signals, being added. This is different from normal cells, which need growth factors to grow in culture.
Cancer cells may make their own growth factors, have growth factor pathways that are stuck in the "on" position, or, in the context of the body, even trick neighboring cells into producing growth factors to sustain them^1
1
start superscript, 1, end superscript.
Diagram showing different responses of normal and cancer cells to growth factor presence or absence.
- Normal cells in a culture dish will not divide without the addition of growth factors.
- Cancer cells in a culture dish will divide whether growth factors are provided or not.
Diagram showing different responses of normal and cancer cells to growth factor presence or absence.
Normal cells in a culture dish will not divide without the addition of growth factors.
Cancer cells in a culture dish will divide whether growth factors are provided or not.
Cancer cells also ignore signals that should cause them to stop dividing. For instance, when normal cells grown in a dish are crowded by neighbors on all sides, they will no longer divide. Cancer cells, in contrast, keep dividing and pile on top of each other in lumpy layers.
The environment in a dish is different from the environment in the human body, but scientists think that the loss of contact inhibition in plate-grown cancer cells reflects the loss of a mechanism that normally maintains tissue balance in the body^2
2
squared.
Another hallmark of cancer cells is their "replicative immortality," a fancy term for the fact that they can divide many more times than a normal cell of the body. In general, human cells can go through only about 40-60 rounds of division before they lose the capacity to divide, "grow old," and eventually die^3
3
cubed.
Cancer cells can divide many more times than this, largely because they express an enzyme called telomerase, which reverses the wearing down of chromosome ends that normally happens during each cell division^4
4
start superscript, 4, end superscript.
Cancer cells are also different from normal cells in other ways that aren’t directly cell cycle-related. These differences help them grow, divide, and form tumors. For instance, cancer cells gain the ability to migrate to other parts of the body, a process called metastasis, and to promote growth of new blood vessels, a process called angiogenesis (which gives tumor cells a source of oxygen and nutrients). Cancer cells also fail to undergo programmed cell death, or apoptosis, under conditions when normal cells would (e.g., due to DNA damage). In addition, emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division^5
5
start superscript, 5, end superscript.
Diagram showing different responses of normal and cancer cells to conditions that would typically trigger apoptosis.
- A normal cell with unfixable DNA damaged will undergo apoptosis.
- A cancer cell with unfixable DNA damage will not undergo apoptosis and will instead continue dividing.
Explanation:
A segment of DNA strand is shown.
3’ ATCGATCCA 5”
Which of these is the correct complementary DNA strand for the segment shown?
A. TACCTAGGA
B. TAGCTAGGT
C. ATCGATCCA
D. ACCTAGCTA
Can someone please help me on this plz I beg u :(
Answer:
Coleoptera is correct! Hope this helps.
In flies, red eye color (Xa) is a sex-linked recessive trait. Black eyes (XA) are the normal colored eyes for flies. What are the chances
that a carrier mom and a black-eyed dad will have (hint: you must use X's and Y's):
a. a red eye male as their next offspring?
b. a black eye female as their next offspring?
2.
3
4.
5 6 7 8 9 10
Answer:
The correct answer is -
a. a red-eye male as their next offspring? = 25%
b. a black eye female as their next offspring? = 25%
Explanation:
The given question says that in flies the red eye color is a sex-linked recessive trait which means it will only appear in the presence of two copies of the recessive allele in females and one copy of recessive allele in male as there is only one copy of X chromosome is present in males the other chromosome is Y.
So, the genotype of carrier mom would be XaXA and normal black eye male would be XAY, then cross between these flies:
XA Y
Xa XaXA XaY
XA XAXA XAY
On the basis of red eye male would be XaY = 1/4 = 25%
and the black eye female would be XAXA = 1/4 = 25%
In what way does walking help The environment? How does it make you feel about the state of our environment?
Answer: Walking plays an important role in improving our quality of life because it helps protect and improve the living environment and natural resources. ... Communities designed to be walkable have the potential to reduce air pollution and greenhouse gases because people may choose to walk or bike rather than drive. Walking plays an important role in improving our quality of life because it helps protect and improve the living environment and natural resources. Improving the environment in turn brings added health benefits that come, for example, from cleaner air, less traffic noise and fewer road accidents.
Explanation:
Describe Okasaki fragments.
Answer:
Okazaki fragments are short sequences of DNA nucleotides which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.
Explanation:
Which of the following best characterizes injuries to the patagium? Injuries are-
A: rare and small injuries heal well.
B: frequent due to fighting between bats.
C: not likely to heal and bats usually die from them.
D: common during birth and can contribute to infant mortality.
How does nondisjunction affect the production of gametes?
Answer:
Nondisjunction Produces Abnormal Gametes. If nondisjunction occurs during anaphase I of meiosis I, this means that at least one pair of homologous chromosomes did not separate. The end result is two cells that have an extra copy of one chromosome and two cells that are missing that chromosome. Click to see full answer.
Explanation:
Which waves can make dramatic ground movements
Answer:
surface waves
Explanation:
surface waves
Two insect groups vary genetically by two genes. When put together, they were able to reproduce and produce offspring that could also breed. Which best describes this insect population?
The insects experienced geographic isolation.
The insects experienced reproductive isolation.
The insects are different species.
The insects are the same species.
The answer is D. The insects are the same species.
The insects are the same species best describes this insect population.
What is reproductive isolation?The fact that the two insect groups were able to reproduce and produce offspring that could also breed indicates that they are not experiencing reproductive isolation. Reproductive isolation occurs when two populations of organisms can no longer interbreed due to genetic or behavioral differences.
Since the two insect groups can interbreed and produce viable offspring, it suggests that they are not different enough genetically to be considered different species.
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