What is the advantage for birds of not having a bladder?

Answers

Answer 1

Answer:

Explanation:

The urinary bladder is a flexible sac that can expand and contract and that holds urine.

Urea is excreted mainly by birds and it happens to be the main chemical in urine, without the water in it, the birds excrete just solid droppings instead of as a liquid.

Now, birds physiology is such that they have only one opening to get rid of their (solid) waste and they do not have a bladder.


Related Questions

Which of the following relationships may present harm to one of the organisms involved?

I. Commensalism
II. Parasitism
III. Predation
IV. Mutualism

(A) I and II only
(B) I and IV only
(C) II and III only
(D) III and IV only​

Answers

Answer:

C

Explanation:

Predator-Prey relationship

In Guinea pigs, short hair (S) is dominant over long hair (s), and black coat color (B) is dominant over
albino (b). Both genes assort independently. A female of a true breeding line with a black coat and long
hair is mated with a short haired albino male (also from a true breeding line). (a) What are the
phenotypes of the F1 generation? Explain. (b) If F1 is mated, which percentage of the offspring will be
homozygous for both characters? Give all genotypes and phenotypes of these homozygotes.​

Answers

Answer:

Explanation:

Short hair (S) is dominant over long hair (s), and black coat color (B) is dominant over albino (b).

A female of a true breeding line with a black coat and long  hair is mated with a short haired albino male (also from a true breeding line)

parents genotype      BBss  x    SSbb

gametes                       Bs     x    Sb

F1 generation geenotype    BbSs

Phenotype- They are all with black coat and short hair

Mating of F1   BbSs  x  BbSs

   Percentage of offspring homozygous for both characters:

  Bb  x   Bb           Ss   x   Ss

 BB Bb Bb bb     SS  Ss Ss ss

 1/4             1/4         1/4       1/4

1/4*1/4 = 1/16 = 0.0625 = 6% for each homozygous characters (BBSS-6% and bbss-6%)

The genotypes of the homozygotes are BBSS and bbss

The phenotype of BBSS is black coat with long hair

The phenotype of bbss is an albino with short hair

Which characteristics do temperate Marine and temperate Continental climates have in common

Answers

Options are not provided in the question. The complete question is:

Which characteristics do temperate marine and temperate continental climates have in common? Check all that apply.

A.mild winters

B. hot summers

C. many tall trees

D. moderate amount of precipitation

E. two seasons with temperature differences

Answer:

D. moderate amount of precipitation

E. two seasons with temperature differences

Explanation:

The temperate marine climate is generally the climate of west coasts in higher middle latitudes of continents.

Temperate continental climates also known as microthermal climates are located away from the oceans.

Though the location of both the climates is different but some of the characteristics are similar that include are modertae amount of precipitation and two seasons with temperature differences.

Both the climates have moderate rainfall across the year ( modertae amount of precipitation) and mild to warm summers and cool to cold winters.

Hence, the correct option is D and E.

Answer:

Answer is D on egde!!

Explanation:

Why does the moon have a greater influence on Earth's Tides than the sun does

Answers

Answer:

Because ocean tides are the effect of ocean water responding to a gravitational gradient, the moon plays a larger role in creating tides than does the sun. But the sun's gravitational gradient across the earth is significant and it does contribute to tides as well.

Explanation:

As a conservationist, what are your top three concerns regarding the hydroelectric dam and the biodiversity of the region?

Answers

Answer:

I’m concerned about how the dam will affect the water flow in the river, which can affect the behaviors of fish. I’m also concerned that some fish and aquatic animals might get sucked into the dam. Finally, I worry that the dam could malfunction and cause flooding, which could damage the ecosystem.

Explanation:

Top three concerns regarding the hydroelectric dam and the biodiversity of the region

Hydropower can also cause environmental and social problems. Reservoirs drastically change the landscape and rivers they are built on. Dams and reservoirs can reduce river flows, raise water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.

How do hydroelectric power plants affect the environment?

Hydroelectric plants alter the natural habitats of freshwater species in the areas they are located. It changes the concentration of nutrients, water temperature, and the river's flow. Downstream river flow suffers a loss of water and silt loads, reducing water quality.

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Which of the following statements regarding selenium/selenoproteins is incorrect?

a. They are proven protection against colon cancer.
b. The amount of selenium in foods depends upon the soil where the plants were grown and animals grazed.
c. Selenium functions as an antioxidant.
d. Selenium plays an important role in the regulation of thyroid hormones.

Answers

Answer:

The correct answer is: A. They are proven protection against colon cancer.

Explanation:

Selenium is a mineral that can be incorporated into our bodies in small amounts when we consume certain foods, such as whole grain and dairy products. The amount of selenium in these products depends on the soil where the plants and animals were.

Selenium plays an important role as an antioxidant, which can lower the risk of developing several types of cancer. However, this doesn't mean that its consumption can prevent colon cancer, and the studies that had been done to prove its effectivity in these regards have been inconclusive.

Besides functioning as an antioxidant, selenium also is very important for the regulation of the thyroid hormones, which play an important part in metabolism.

The protein that contains selenocysteine amino acid remnants is called selenoproteins. They are found in the endoplasmic reticulum of the cells.

The incorrect statement is:

Option a. They are proven protection against colon cancer.

The statement can be explained as:

Selenium is a mineral that gets incorporated into our body through foods, dairy and whole grains. The amount of selenium depends on its amount and presence in the soil.

Selenoproteins are good antioxidants that can lower the risks of cancers. But its consumption does not provide complete protection against cancers.

It also regulates the thyroid hormone and plays a vital role in the regulation of metabolism.

Thus, they have not proven medication for colon cancer.

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What happens during interphase that allows the two resulting cells to be the same as the
original cell?

Answers

Answer:

During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.

what is the importance of reflex actions?

Answers

Explanation:

to minimize any damage to the body from potential harmful conditions

An involuntary motor response to a sensory stimulus is known as reflex.Reflexes perform many types of jobs for our central nervous sustem.such as:

they protect us from danger.they help us move our body.they help us to see etc..

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A DNA molecule is made up of building blocks known as nucleotides. Each nucleotide consists of deoxyribose, a phosphate group, and one of the chemical bases. The nucleotides join together to form a
, which form the backbone of a DNA strand.

Answers

Answer:

polynucleotide

Explanation:

according to edmentum notes, "The nucleotides join together to form a polynucleotide. Polynucleotides form the backbone of a DNA strand.'

Nucleotides are the building units of the DNA or RNA molecule. DNA is composed of deoxyribose, a phosphate group, and one of the chemical bases that make up each nucleotide.

What is a nucleotide?

It is a monomer of DNA or RNA. It is composed of a sugar (deoxyribose in DNA ribose in RNA), a phosphate group, and one of the chemical bases that make up each nucleotide.

The backbone of DNA is formed by which components?

It is formed of sugar and phosphate only.

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The process through which humans breed other animals and plants for particular traits:
A) artificial selection
B) genetic engineering
C) genes
D) selective breeding
E) traits

Answers

Answer:

A) artificial selection

Which is a possible path of the movements of nitrogen in the nitrogen cycle?
(A) soil - airplants air animals - soil
B) soil animals plants
soil
animals soul plants - air
(D) air - soil plants animals soil - air​

Answers

Answer:

B) soil animals plants

soil

Explanation:

Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. ... Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow.

DPIP was used in the photosynthesis lab to measure the

-Light dependent reactions

-Production of O2

-Light Independent reaction (a.k.a. Calvin cycle)

-Production of CO2

Answers

Answer:

Light dependent reactions

Explanation:

DPIP stands for Dichlorophenolindophenol. It is a chemical compound that is used as a redox dye.

DCPIP is blue when it is oxidized DCPIP is colorless when it is reduced.

DCPIP measures the rate of photosynthesis. The redox dye is decolorized by chemical reduction when it is exposed to light in the process of photosynthesis.

DPIP was used in the photosynthesis lab to measure the light dependent reactions.



1. Which plant traps bugs in its stem and forces them to walk forward?

Answers

Explanation:

The active trap in the Venus Flytrap ( dionaea muscipula )

What is the main cause of an aurora?Arrange the inner layers of the Sun in order starting with the innermost layer.

Answers

Answer:

i.Core:The center of the Sun where all the Sun's energy is produced.

ii.Radiative Zone:Tiles Energy produced by nuclear reactions in the core travels to this zone through radiation. 

iii.Convection Zone:In this zone, hotter gases from the base travel to the top and  cooler gases sink to the bottom due to the temperature difference.

iv.Photosphere:This zone is visible from Earth. Sequence

When charged particles from the sun strike atoms in Earth's atmosphere, they cause electrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights. ~Earthsky

Answer:

hiii

Explanation:

is b

Fertilizer runoff causes an increase in the dissolved nutrients of the ecosystem shown in the food web below. This causes the number of phytoplankton to double.


How will this most likely affect the other species in this ecosystem?
A.
The shrimp population will increase which will cause an increase in the squid population.
B.
The shrimp population will decrease which will cause an increase in the squid population.
C.
The shrimp population will decrease which will cause an increase in the sperm whale population.
D.
The shrimp population will increase which will cause a decrease in the sperm whale population.

Answers

Answer:

I believe the answer is A because if shrimp eat phytoplankton, and squid eat shrimp this should work. I am not positive but I hope this helps.

A. Describe how C. parvum obtains the glucose it needs for glycolysis after it has infected another cell.

B. Explain the role of lactate dehydrogenase in enabling C. parvum to continue producing ATP by glycolysis.

C. Identify the independent variable used in the experiment.

D. Identify the difference between the control cells and the experimental cells used in the experiment.

E. Justify the use of a control in this experiment.

F. Justify the researchers using a different range of concentrations for FX11 than was used for gossypol.
G. Based on the data in Figure 1, Identify the concentration of gossypol that reduced C. parvum growth to 50% of that in control cells.
H. Researchers discovered a strain of C. parvum that expresses a functional variation of the lactate dehydrogenase gene. A DNA sequence comparison showed that the variant differs from the normal sequence in the region that codes for the enzyme’s allosteric site. Predict the effect of FX11 treatment on C. parvum that express this variant of lactase dehydrogenase.
I. Provide reasoning to support your prediction.
J. Explain how gossypol and FX11 might be used as drugs to treat C. parvum infections in humans without negatively affecting human cells.

Answers

Answer:dang

Explanation:

as a human population grows, what happens to our natural- resources requirement

Answers

Answer:

Need for natural resources increase

Explanation:

Which of these is found within all cells?
Organ systems
Organs
Tissues
Molecules

Answers

Answer:

tissues

Explanation:

cells make tissues and tissues make organs



Use the drop-down menus to answer the questions.

Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?

Which two features are present in a plant cell but not in an animal cell? ************someone HELP PLEASE***********

Answers

Answer:

A DNA is contained in the NUCLEUS of a eukaryotic cell not a prokaryotic cell. Your awnser is " nucleus"

Explanation:

The feature that contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell is the nucleus. The two features that are present in a plant cell but not in an animal cell are the cell wall and chloroplasts.

1. Eukaryotic cells have a membrane-bound organelle called the nucleus that contains the DNA of the cell. It is in charge of conserving and safeguarding the genetic material, including the chromosomes that contain the genes that govern the properties and operations of the cell.

On the other hand, prokaryotic cells are devoid of a genuine nucleus. The cytoplasm of these cells contains their genetic material, which is normally one circular DNA molecule.

2. Cell Wall: The cell membrane of plant cells is enclosed by a strong cell wall. The plant cell is protected and supported structurally by the cell wall. Together with other polysaccharides, proteins, and cellulose, a complex carbohydrate, it essentially consists of these elements. Animal cells lack a cell wall and are supported instead by extracellular matrix and other structural elements.

Chloroplasts: The chloroplasts found in plant cells are in charge of photosynthesis. Specialized organelles called chloroplasts house the pigment chlorophyll as well as other pigments that are used to absorb light energy.

They do this by converting light energy into chemical energy, releasing oxygen as a byproduct and creating glucose. As animal cells lack chloroplasts, they are unable to perform photosynthesis.

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Why are leaves of water lily coated with wax on the upper surface?

Answers

Answer:

The wax creates an outer layer of zero friction surface helping the water lily leaves float on the water surface, the wax also creates a shiny coating that reflects and lowers the temperature of the water and also prevents water loss by evaporation and helps in prevention of other plant diseases.

Explanation:

In which environment would primary succession take place? Select 2 options.
an abandoned field
a cooling lava flow
a valley under a glacier
an unused farm
a deserted mine

Answers

Answer:the answer is B and C since there is no soil or life

Explanation: explanation is up there

Answer:

B and C

Explanation: I got the answer right on my test

What type of acid is currently of principal concern when dealing with acid rain?

Answers

Answer: Sulfur dioxide (SO2) and nitrogen oxides (NOx) released into the air by fossil-fuel power plants, vehicles and oil refineries are the biggest cause of acid rain today, according to the EPA. Two thirds of sulfur dioxide and one fourth of nitrogen oxide found in the atmosphere come from electric power generators

hope this helps

Some bacteria live in the roots of plants like soybeans and peas.

Bacteria growing on plant roots.
What is the role of these bacteria in the nitrogen cycle?

Answers

Answer:

Nitrogen is the most commonly limiting nutrient in plants. Legumes use nitrogen fixing bacteria, specifically symbiotic rhizobia bacteria, within their root nodules to counter the limitation. Rhizobia bacteria convert nitrogen gas (N2) to ammonia (NH3) in a process called nitrogen fixation.

Answer:

to convert free nitrogen into usable nitrogen

Explanation:

on edge

Why do fungi need to live in moist areas

Answers

Answer:

Search Results

Featured snippet from the web

Fungi help catabolism of complex organic matter into simple available inorganic forms. In other words they breakdown organic matter to obtain energy. This process of decomposition requires aerobic ambient and moisture therefore they are mostly found in moist habitats rich in detritus.

Explanation:

Fungi help catabolism of complex organic matter into simple available inorganic forms. In other words they breakdown organic matter to obtain energy. This process of decomposition requires aerobic ambient and moisture therefore they are mostly found in moist habitats rich in detritus.

According to the information in the passage, before purchasing bird food for a bird feeder a person should
es )))
A)
plant trees and shrubs in the yard.
B)
purchase a birdbath and a birdhouse.
know what kinds of birds are common to the area.
D
create a bird-friendly environment in the backyard.​

Answers

Answer:

1 is C) know what kinds of birds are common to the area.

2 is D)    main idea and details

Explanation:

I had it on a test hope this helps

Answer: C

Explanation: Know what kinds of birds are common to the area

At what ages are teeth the most accurate indicators of age of an unknown skelton? Justify your answer with an explanation.

(Forensics)

Answers

Answer:

The tibia completes growth at about age 16 or 17 in girls, and 18 or 19 in boys. For toddlers to teenagers up to age 21, teeth are the most accurate age indicators

Explanation:

which of the following describes an interaction where an organism of one species benefits and an organisms of a different species is not significantly affected? ​

Answers

Commensalism is an association between two different species where one species enjoys a benefit and the other is not significantly affected. Probably the best example of commensalism is the relationship between cattle egrets and large herbivores

Unscramble the word - oicnoecm mptcia earth science please

Answers

I want to say

Economic impact (?)

Answer:

The answer is Economic impact.

Consider the steady ultafiltration of a solute from the capillary across the glomerular endothelial cells into the urinary filtrate in the kidneys. Model the endothelial cells as an infinite membrane of thickness tEC. Assume a well-mixed capillary with concentration CC and a well-mixed filtrate at CF. With a diffusion constant of DEC in the endothelial cell compartment, what is concentration profile across the endothelial cells

Answers

Answer:

DEC = CC + CF

Explanation:

It should be understood that, the concentration profile across the endothelial cells will base on the diffusion rate of the filtrate .

Depending on the organism, the number of____in a cell may change.

Answers

Answer:

chromosomes

Explanation:

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