Structures of the Excretory System Cells produce wastes such as salts, carbon dioxide, and ammonia. For homeostasis to be maintained, these wastes need to be removed from the body. Excretion is the process by which metabolic wastes are elimiNted from the body.
- The skin excretes excess water, salts, and a small amount of urea in sweat.
- The lungs excrete carbon dioxide and water vapor.
- The liver converts potentially dangerous nitrogen wastes to urea.
- The kidneys are the major organs of excretion. They remove excess water, urea, and metabolic wastes from the blood. Ureters carry urine from the kidneys to the uriNry bladder, where it is stored until it leaves the body through the urethra.
1. Why does the body need an excretory system?
Answer:
okay lets go.
Explanation:
A body needs an excretory system because:
Withouts the excretory system the wastes such as sweats ,urea will be continously collects in the body and they are harmful therefore can cause death.
A group of Right Whales are moving from the coast of Nova Scotia to the coast of Georgia. What are the Right Whales doing? A. emigrating from Georgia
B. hibernating in Georgia
C. immigrating to Georgia
D. remaining in Georgia
Answer:
it is b they are hibernating
How do homologous structures show
common ancestry?
A. They show us the genetic makeup of extinct organisms.
B. They show the situation that caused a species to branch
off from the original.
C. They show similarities between species and which
organism first developed the structure.
D. They are the structures that exist in the oldest living
member of an existing species.
According to the context, homologous structures show similarities between species and which organism first developed the structure.
What are homologous structures?They are structures that in different species fulfill similar functions, but have different embryonic origins, by virtue of their similarity, they suggest their connection with a common ancestor.
That is to say, it is the expression of the same genetic combination and that it is supposed to come from a common ancestor.
Therefore, we can conclude that according to the context, homologous structures show similarities between species and which organism first developed the structure.
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Is xylem or schlencyma the tissue that forms annual rings during secondary thickening growth in dicot plant
Answer:
xylem
Explanation:
The blind mole rat is a close relative of other rats. however, mole rats live underground for their entire lives. as a result, their eyes have evolved into useless structures. presumably, mole rats will not have eyes at all in the distant future. what type of structures are the mole rats eyes?
a.
vestigial structure
b.
developmental structure
c.
homologous structure
d.
analogous structure
Answer:
A. vestigial structures
Explanation:
Vestigial structures are those that serve no purpose in current organisms, but were useful to ancestors of those organisms.
Which statement is true about organ systems in the human body?
Choose 1 answer:
(A) if one organ system fails due to a disease, another will take its place.
(B) each organ system carries out a unique function in the human body.
(C) each organ system works completely alone as it helps the body live and grow.
If two organisms have homologous structures and similar early development, what can you infer about them?
Answer:
Common ancestry
Explanation:
If two things have similar structures and have similar early development that means they likely originated from a common ancestory a long time ago. This would support the notion that they are evolutionary related.
The root cause of cancer is damage to cellular deoxyribonucleic acid (DNA) which can be caused by many factors, or carcinogens. What factors can be carcinogenic
Cancer-causing genetic changes can be acquired during individual lifetime, which results errors that occur as cells divide or from exposure to carcinogenic substances which damage DNA, such as certain chemicals in tobacco smoke, and radiation (ultraviolet rays) from the sun.
What is carcinogens?Carcinogens is referred to as substances which induce mutations in DNA which lead to the development of a cancerous cell.
So many can be carcinogenic such as environmental factors can include a extensive exposures, such as lifestyle factors (nutrition, alcohol use, physical inactivity, etc. Naturally occurring exposures such as ultraviolet light, infectious agents, etc.
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Why is commensalism important in a diverse ecosystem? (or just important in general) IMPORTANT I REALLY NEED THIS YOU DONT KNOW HOW MUCHmarking brainliest
Answer:
It is important for mating, eating and mutual relationships within the ecosystem. It brings life and help to the creatures and organisms within the system. it creates mutual and parasitic relationships.
Explanation:
Which of the following is an example of an enzyme? Multiple Choice Sigma factor: the protein that binds to bacterial promoters to initiate transcription Insulin: the protein that tells cells to uptake glucose Keratin: the protein that gives cells structure Glucose transporter: the protein that allows glucose into cells ATP-synthase: the protein that produces ATP from ADP and P
Answer:
ATP-synthase: the protein that produces ATP from ADP and P
Explanation:
Proteins have diverse functions. Enzymes are very specific type of proteins with catalytic activity, help run reactions, and help with metabolism.
ATP-synthase is an enzyme in electric transport chain which allows us to make ATP using the electrochemical gradient in mitochondria.
Apes and chimpanzees are different species because _________________.
a. they live in different environments
b. they cannot produce offspring together
c.they have different physical features
d.they eat different foods
Answer: b
Explanation:
different species cant reproduce
Which describes how viruses reproduce
when using a living host?
A. they cannot reproduce
B. slowly
C. with non-living material
D. quickly
Answer:
c.po
correct me if I'm wrong but Mao jdt aho NASA isip nho..tnx
What is the chemical equation for aerobic respiration
Answer:
C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy
hello who can firgure it out
Answer:
C.
Explanation:
many marine organisms depend on upwelling to bring nutrients to surface. how might El Nino affect a fisherman's way of life
The upwelling of seawater refers to the rising up of the deeper and cold water towards the surface of the sea. This cold water is comprised of the valuable and essential nutrients and as they move upward, it provides these nutrients to the marine organisms.
What is El Nino?El Nino is usually defined as the large-scale changes in the climate that occurs due to the interaction between the ocean and the atmosphere. It leads to the episodic rise in the temperature of the sea surface, which typically occurs in the central and the eastern part of the central Equatorial Pacific.
The occurrence of El Nino leads to the reduction of the upwelling of deep-sea cold water. During the time of this harsh climate, the fishes die or they sometimes migrate into some other places where they can obtain their food. Due to this, the fisherman cannot go fishing.
Thus, the occurrence of El Nino directly affects a fisherman's life.
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which statement accurately describes natural selection?
a when animals adapt to their environment and reproduce consistently, they will evolve
b. all living things on earth, including animals, plants, and microbes, share common ancestry.
c all evolutionary patterns can be observed at different places and over different amounts of time.
d when animals evolve from a common ancestor, they share certain dna sequences
Answer:
a when animals adapt to their environment and reproduce consistently, they will evolve
Explanation:
yeaaaaa
How do you think our bodies process food?
URGENT!!!!!!!!!
What are the differences and similarities between cancer and an infectious disease? explain in detail.
Answer:
Cancer and infectious diseases are totally distinct categories of ailments. But at times they may present with similar symptoms and signs 1, 2. They are however treated with different modalities of therapy. Usually, infectious diseases do not carry the gloomy outlook of malignant tumors, although an infection may be fatal or develop at the end of treatment of a cancer.
Explanation:
We propose to disclose first degree analogous features between cancer and infectious diseases and to find out whether these similarities are superficial and negligible, due to the use of the same bodily pathways by the two categories of disease or if they represent significantly parallel characteristics. We have found several primary analogous features, predominantly regarding pathways of spread, but to some extent also concerning the interaction with the immune system. Some of the implications to our hypothesis are probably available in the recent literature, at the experimental or clinical levels. For example endostatin, an angiogenic inhibitor has been used to prevent promotion of metastasis in cancer and to reduce granulomas formation in schistosomiasis. An ECFR antagonist employed to restrain bronchial vessels proliferation in pseudomonas infection, has also been used for the treatment of lung cancer.
Describe how the body responds to transplants and how doctors are able to successfully perform transplants.
How do pain relievers work?
increase production of white blood cells
increase body temperature
block messages within the nervous system
block hormone production
Answer:
transplants:
increase production of white blood cells
pain relievers:
block messages within the nervous system
Explanation:
body may see the transplanted organ as a foreign object
body may send white blood cells to fight the transplanted organ
doctors often give immuno suppressors to those patients so the organ they received isnt hurt by the white blood cells
Both the liver and kidneys are organs of the excretory system. how do the two organs work together to complete a task? a. the kidneys convert nitrogenous wastes into urea, and the liver filters urea from the blood. b. the kidneys filter urea from the blood to make urine, while the liver filters urea from blood to make lymph. c. the liver converts nitrogenous wastes into urea, and the kidneys filter urea from the blood. d. the liver filters urea from the blood and passes it to the kidneys, which eliminate the urea in urine.
Answer:
a.
Explanation:
The kidney converys Nitrogenous waste into urea, and the liver filters the urea from the blood.
an element found in group 17 of the periodic
table
Short-term illnesses that are often the result of a viral or bacterial invader and usually amenable to cure are known a
What occurs when solar radiation bounces off a surface?
texturization
absorption
reflection
energization
6. What are four main principles to the theory of natural selection?
Answer:
variation, inheritance, selection and time
Gram-positive and Gram-negative bacteria are most commonly differentiated in the laboratory by whether __________ .
Answer:
They take up the Gram stain.
If yes, gram positive.
If not, gram negative.
What parts of the chemical equation for photosynthesis are organic molecules?
Answer:
Glucose
Explanation:
Organic molecules are those in which carbon is bonded to hydrogen. Glucose is, therefore, an organic molecule. Carbon dioxide, while it contains carbon, does not include hydrogen, and is, therefore, an inorganic molecule.
Why is there a conflict between oil palm farming and orangutans?
Answer:
The Oil can be unsustainable to animals
Explanation:
Basically, it affects the orangutans because where that oil grows is where they live and they are currently facing extinction.
What does the Golgi body
do with materials?
A. destroy them
B. transport them in and out of the cell
C. create them
D. hold them inside the cell
Answer:
B transport them in and out of the cell
Explanation:
It is this Because golgi's make the proteins and ship them to wherever. But if they receive cell's they transport them to where they are needed.
Where does photosynthesis occur?
A. leaves
B. roots
C. bark
D. seeds
Answer:
a and b
Explanation:
because some plants with out leaf occurs in a root
how animal husbandry affects society
