Answer:
Cells become cancer cells largely because of mutations in their genes. Often many mutations are needed before a cell becomes a cancer cell. The mutations may affect different genes that control cell growth and division. Some of these genes are called tumor suppressor genes.
Explanation:
Which is true about sex-linked traits?
a. They are never seen in women
b. They are found on Barr bodies
c. They are carried on the Y chromosome
d. They are passed from mother to son
Answer:
I think the answer is B
Explanation:
Which group was not present in Linnaeus' system but is present in modern classification systems? A) Species B) Kingdom C) Domain D) Phylum HELP ME
Answer:
D) Phylum
Explanation:
The group that was not present in the Linnaeus' system but is present in modern classification systems is Domain. The correct option is C.
What is Linnaeus classification system?The Linnaean classification system is based on a hierarchy of groupings known as taxa. Taxa vary from kingdoms to species.
The kingdom is the most extensive and inclusive grouping. It is made up of organisms that have only a few basic resemblances.
The Linnaean system is significant because it paved the way for the use of binomial nomenclature to distinguish between species.
Scientists could communicate instead of using misleading common names once the system was implemented.
Domain is a group that was not present in Linnaeus' system but is present in modern classification systems.
Thus, the correct option is C.
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Choose T (True) or F (False)
Answer:
a) true
b) true
c) false
d) true
e) false
why is the concentration of oxygen in the body cells lower than the concentration of oxygen in the alveolus?
A. Alveolus can produce oxygen.
B. The exchange of gases occur in the alveolus.
C. Oxygen is used up for respiration I the body cells.
S. Oxygen diffuses out from the body cells.
Answer:
i think the answer should be b.
the alveolus is the site of exchange of gases (carbon dioxide and oxygen) between the body cells and the alveolar air. diffusion requires a concentration gradient, which basically means that there has to be a difference in concentration of the substance (in this case it's oxygen) between the 2 areas (in this case it's the body cells and the alveolar air) hence, there is more oxygen in the alveolar air than the body cells (this difference in concentration is what allows diffusion of oxygen from a region of HIGHER to LOWER concentration!) this allows oxygen to diffuse from alveolus to body cells, giving your body the oxygen it needs!
btw keep in mind that i am by no means an expert in biology (because im still a student), but b is the most logical answer to me. good luck!
Label the parts abcd
Answer:
A- sensory receptor
B-sensory neuron
C- Relay neuron
D-Motor neuron
E-effector muscle in arm
Explanation:
What describes a scientific theory
Answer:
A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses. ... A scientist makes an observation of a natural phenomenon.Explanation:
what is Krebs cycle?
Is Krebs cycle also known as cellular respiration?
Explanation:
The tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main source of energy for cells and an important part of aerobic respiration. It takes place in the mitochondria, using up oxygen and producing carbon dioxide and water as waste products, and ADP is converted to energy-rich ATP.
No Krebs cycle is not known as cellular respiration
Which measurement would changif you traveled from Earth to the moon?
A.your weight
B.your density
C. your mass
D.your height
Answer:
A. your weight
Explanation:
B, C, and D are all fixed by the number of atoms in your body. Weight is determined by the gravitational pull which would be less on the moon.
Which statement is not a part of the cell theory
Answer:
cells part such as chloroplasts are self-replicating.
Answer:
the answer is C hope this helps :) Please brainliest
Explanation:
why is biodiversity in a certain environment important?
pag tama ung answer i brainliest you
Answer:
That's right. You have listed important determinants and features of biodiversity.
Explanation:
Pa fallow po pls.
how do you think the endocrine system and the nervous system work together to control communication in the body?
Explanation:
Ans. They use the help of the brain and nerves
Answer these questions about making a yogurt.
1) why is the milk pasteurized at the start of the process?
2) Why is the mixture of milk and bacteria incubated at 45 °C?
3) what causes the milk to thicken?
4) why does fermentation eventually stop?
5) Explain how making yogurt is a way of preserving the nutrients from milk.
It should be noted that milk is pasteurized at the start of the process in order to kill bacteria.
The mixture of milk and bacteria is incubated at 45 °C to kill the bacteria.The drop in pH causes milk to thicken. Fermentation is stopped when the alcohol concentration rises to a point where it kills the yeast cells.Lastly, making yogurt is a way of preserving the nutrients from milk as the bacteria ferment the milk thereby turning the lactose sugars to lactic acids.
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I really need help please
Answer:
There should probably be some proof in the information above, but the mass would be lost through excretion, respiration, sweating, and movement
Explanation:
Answer:
Ok, in the diagram it looks like there are arrows pointing to its mouth and its rear end right so my best guess would be that the rabbit eats the food, some of the mass is turned into energy and the rest of it goes out the rear end. I'm assuming they want you to explain how mass is turned into energy and travels throughout the body.
Explanation:
Write a title for each step of primary
succession
Answer:
The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
How do mangroves and coral reefs show mutual relationship?
Answer:
The answers below⤵
Explanation:
Mangroves serve as a shoreline protection.
how is the energy in food used in our body
Answer:
The human body uses the energy released by respiration for a wide range of purposes: about 20% of the energy is used for brain metabolism, and much of the rest is used for the basal metabolic requirements of other organs and tissues.
Which statement best explains why these siblings are genetically different from each other?
Answer:
Only one chromosome from each pair randomly passed to the s*x cells during meiosis and leads to differences between the siblings.
When autotrophs produce more organic matter than they use in respiration tehre is anet increase in organic matter. That is called
A. Anaerobic repiration.
B. Diffussion.
C. Primary production.
D. Osmoregulation.
Answer: Primary Production
Explanation:
A net increase in organic matter seen when autotrophs produce more organic matter than they use for respiration, The hint was autotroph, an autotroph is always a primary producer, so there for it would be primary production.
Explain how scientists can have multiple theories about the effects of global warming.
Plz make it about 3 sentences
Answer:
1. global warming is caused by excess carbon dioxide
2. it melts glaciers
3. it cause ozone to break
Answer:
ANSWER FROM EDGE 2022 : The global climate is a complex system involving different factors such as temperature, precipitation, pressure, humidity, and wind. The complexity of the system makes it difficult to accurately predict how changes in one region can affect other regions.
NOT COPIED ANSWER: Data collected over years show that the global average temperature is steadily rising. Scientists will be able to develop multiple hypotheses about the effects of global warming in the coming years because of this.
Both choices is correct! First one is from edge second is mine I answered personally.
Explanation:
got it correct ik I'm late but for upcoming students! edge 2022.
what is the difference between threatened and endangered species
How does your body respond to a decrease in blood glucose
Answer:
When blood sugar drops too low, the level of insulin declines and and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal
All cells come from other cells. New cells are created by a process called cell division. To start cell division, a cell grows bigger and makes copies of the parts inside it. Then, the cell and its parts separate into two new cells. Each new cell contains the same types of cell parts as the original cell. Later, each of these cells may divide again to form more cells. When a multicellular organism's cells divide, the organism can grow. Each resulting cell is part of that organism. When a unicellular organism divides, each resulting cell is a separate unicellular organism. The micrographs below show cells from two different organisms: Giardia, a unicellular protist, and banana, a multicellular plant. Giardia cells in a banana Which of the following statements are true? Select all that apply.?
a. A rose bush cell can divide to form two rose bushes
b. If the bacterium divides, it will become a multicellular organism
c. When a rose bush cell divides, it copies its parts then divides into two cells
d. The bacterium was formed when another bacterium divided
Answer:
c. When a rose bush cell divides, it copies its parts then divides into two cells and
d. The bacterium was formed when another bacterium divided
Explanation:
C is correct because the cells inside are part of a larger being (the rose bush), when they divide they are simply creating more cells (hence making the rose bush grow).
D is correct because bacterium are unicellular organisms, meaning they are themselves single cells that are organisms, unlike the rose bush consisting of many cells.
Please rate this answer choice 5 stars and leave a thanks.Yellow hair (Y) can be crossed with red hair (R) to create strawberry-blond. A yellow haired person is crossed with a strawberry-blonde person. What is the genotypic & phenotypic ratio of the children?
Answer:
Genotypic ratio = 2:2
Phenotypic ratio = 2:2
Explanation:
In image attached
outside of our moon which moon in the solar system is most studied
Answer:
Enceladus its a moon in saturn
PLZ HELPPPPPP
Which of the following is a possible consequence of solid pollutants in a lake or river?
O Build-up of garbage in freshwater
O Quick drop in dissolved oxygen
O Decrease in algae colonies
O Sudden hypoxic waters
HELP PLZ
Answer:
I believe it would be B.) Quick drop in dissolved oxygen
Quick drop in dissolved oxygen is a possible consequence of solid pollutants in a lake or river.
What is Biological Oxygen Demand?
Biochemical oxygen demand (BOD) is the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic conditions.
Solid pollutants in freshwater bodies like river and lake generally corresponds to organic wastes such as leaves, flowers and clothes which lead to increase in number of microorganisms in these water that further results in increase of BOD.
Drastic increase in microorganisms lead to drop in amount of dissolved oxygen in water, thus the possible consequence of solid pollutants in a lake or river is quick drop in dissolved oxygen.
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What happens to the original DNA strand after transcription?
Answer:
It changes its form
Explanation:
The DNA strand during this process is copied and "mutate" if I may use the word , the after the new copies are change to molecules that's why at the end of the day we have different blueprints
what is an environmental concern regarding genetically modified plants that are resistant to herbicides and the other similar plants located near them?
Answer:
Biodiversity Loss
BLOCK:
Name each number stage in the plant cell mitosis diagram below.
1.
2.
3.
4.
5.
6.
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18.
CUADRA:
NOMBRE CADA ETAPA NUMERADA EN EL DIAGRAMA DE MITOSIS DE CÈLULAS VEGETALES A CONTINUACIÒN
1.
2.
3.
4.
5.
6.
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8.
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18.
Which activity would you do to find out presence of moisture in soil sample? Describe it with a diagram
You could calculate the moisture content of the soil by subtracting the weight of the dry soil from the weight of the moist soil, and then divide by the weight of the dry soil.
Green plants are ___. This means that they can survive without ___.
Answer:
Green plants are producers. This means that they can survive without animals.