Which types of species tend to dominate river ecosystems.

Answers

Answer 1

Answer:

fish species

Explanation:


Related Questions

rele existente entre o modo verta do como Loonie na propaganda o trecho que revela a tras de cor Por que algumas partes do dos foram grafadas com as palavra do circunstancia OS orgbos tonponsáveis pela publicação anuncio publicat 10 Qual o tipo discursivo predominante do texto?​

Answers

Answer:

what??speak English please

Explanation:

i don't really understand

I'm sorry I'm really sorry plss

forgive me

Is the circled karyotype a male or female?


female


male

Answers

Answer: A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.

Explanation:

A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.


Explanation:

If You Had Three Wishes, What Would You Wish For?

For my first wish i would wish to have endless wishes then i will wish whatever i want

Answers

Answer:

Both we have the same idea. I also have thought about that before. lol

Answer:

total freedom, Be 21 forever(lol) and thats it

Explanation:

Why must everything but the
independent variable stay constant?
A. since a graph can only hold one variable
B. each group should be completely different to do an
experiment
C. because you can only record information for one
experimental group
D. because with too many variables you can't
determine what caused the

Answers

i believe the answer is b! :) lmk if it helped

The independent variable should stay constant because  each group should be completely different to do an experiment while it is being conducted.

What are variables?

The variables are defined as any characteristics, number or quantity which can be measured . They can also be called as a data item . They are called as variables because they can vary and can have variety of values.

There are three types of variables 1) manipulated variable where in a condition is specified, 2) responding variable which is dependent on manipulated variable 3)controlled variables which does not change

Example of manipulated variables are number of hours spent by a student studying , that of responding variable is result of a student and temperature is an example of controlled variable.

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please helppp!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

B (nematocysts)

Explanation:

A nematocyst is a long, thin, coiled stinger. It has a barb that may inject poison. These tiny poison "darts" are propelled out of special cells. They are used to attack prey or defend against predators.

Have an awesome day friend! :D

Answer:

It is B the nematocysts they can defend against predators.

Which of the following statements is false?

*Pressure on the sciatic nerve causes carpal tunnel.
The "funny bone" is really a nerve.
All spinal nerves are mixed nerves.
A dermatome can be formed by a spinal nerve or cranial nerve.

Answers

Answer:

a. Pressure on the sciatic nerve causes carpal tunnel.

Explanation: is the correct answer that is the false statement

________ are characterized by stinging cells used for defense and for capturing prey. A. Roundworms B. Cnidarians C. Sponges D. Annelids

Answers

Cnidarians are characterized by stinging cells used for defense and for capturing prey.

Answer: B. Cnidarians

Cnidarians are animals which have specials cells known called 'cnidocytes', these are stinging cells. Cnidarians also have organelles called 'nematocysts'. Nematocysts are stringers that are primarily used to capture prey and for defense.

I hope this helps!

Chitin is all of the following EXCEPT ________. Found in insect and crustacean shells Composed of N-acetylglucosamine subunits Composed of linear fibrils like cellulose Found in plant cell walls

Answers

Answer:

Found in plant cell walls

Chitin is all of the following except it is found in the plant cell wall. So, the correct option is D.

What do you mean by Cell wall?

It is the outermost layer of a cell that can be tough, flexible, and sometimes rigid. Its function is to provide structural support and protection to the complete cell.

The Cell-wall of fungi is made up of chitin. It is composed of N-acetylglucosamine subunits. It is also composed of linear fibrils like cellulose. Mostly, found in insect and crustacean shells.

Therefore, Chitin is all of the following except it is found in the plant cell wall.

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an organism always produces offspring that are identical to the parent when self-fertilized. this organism must be

Answers

An organism that produces offspring identical to the parent when self-fertilized is known as a true-breeding organism. It is also called purebred.

A true-breeding or purebred is a type of organism that always passes specific phenotypic traits to its offspring.

A true-breeding must be homo-zygous (i.e., purebred) to pass certain phenotypic features to offspring.

True breeding organisms are very useful in conventional breeding techniques to pass desirable phenotypic traits to offspring.

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The right whale is an example of
A. a species that is recovering from being endangered
B. a species that failed to adapt to changes to its environment
C. a species that is almost gone because of the excessive pollution in its habitat
D. a species that has become too populous and threatens the survival other of species

Answers

Answer: I believe it's C

Explanation: edg 2021

The correct option is C.

Why do they call it a right whale?

The right whale got its name because it was the right whale to hunt—it moved slowly and would float after being killed. A North Atlantic right whale mother and calf were spotted off the U.S. southern coast by NOAA researchers during the 2020 breeding season.

How rare is a right whale?

North Atlantic right whales have been listed as endangered under the Endangered Species Act since 1970. The latest preliminary estimate suggests there are fewer than 350 remainings, with fewer than 100 breeding females. The number of new calves born in recent years has been below average.

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Bryant Vaughn first worked for United States government as a forensic botanist in 1975, _____ after pollen analysis was first used by Lennart von Post.

Answers

Bryant Vaughn first worked for the USA government as a forensic botanist in 1975, 59 YEARS after pollen analysis was first used by Lennart von Post. L. von Post is considered the father of palynology.

Palynology refers to the discipline that studies plant pollen in both living and fossil forms of life.

Lennart von Post was a naturalist and geologist who is generally regarded as the father of modern palynology.

L. von Post published in 1916 a quantitative analysis of pollen grains entitled “Forest-tree pollen in south-Swedish peat layers”.

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Why is the muscular system needed for respiration to occur in the human body?

Answers

Answer:

Explanation:

the muscular system is needed for respiration to occur in the human body because the diaphragm is a muscle iteslf and the diaphragm inflates the lungs

Which is not a major factor that influences the strength of a rock?



time



rock type



age of rock



temperature

Answers

structure and texture

The main characteristic of the architecture of all plant-pollinator networks on Earth is ________.

Answers

Answer:

The main characteristic of plant-pollination networks is their nested designs.

Blood vessel diameter fluctuates between being constricted and being dilated. This is the primary contributor to blood pressure. In order for blood vessels (arterioles) to maintain a steady pressure, there must be a prolonged presence of what ion in the smooth muscle cell's cytosol

Answers

In order for blood vessels to maintain a steady pressure, there must be a prolonged presence of CALCIUM ions in the smooth muscle cell's cytosol. This ion initiates smooth muscle contraction.

Arterioles are blood vessels that have muscular walls consisting of one or two layers of smooth muscle cells.

Calcium (Ca2+) ions start the contraction of the smooth muscle cells by binding to calmodulin protein and thereby activating myosin.

In consequence, Ca2+ ions act as a secondary messenger that activates calmodulin, stimulating the phosphorylation of the myosin light chain and thus triggering muscle contraction.

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Helpppoo please no filessss

Answers

Answer:

i can’t see the answer choices

Explanation:

A chromosomes contains ________ and ___________organic molecule​

Answers

Answer:

the answer is

Explanation:

DNA and RNA

Which one of the following parasites affect all domestic animals?
A.Ticks. B. Mites
C. Tsetse fly D. Fleas​

Answers

Answer:

D fleas affect all animals

Answer:

D

Explanation:

FLEA THE NAME ORDER IS SIPHONAPTERA

What caused the foam in this experiment?

Answers

Answer:

the yeast

Explanation:

a
The flu occurs when someone is infected with a specific virus. You may know you're sick when you have a fever, a
body temperature above 98.6° F. Based on your understanding of the reading passage, how do you think a fever
would affect enzymes and chemical reactions in your body? Would it decrease, increase, or have no effect on
them? Explain your answer.
Include one paragraph in your answer.

Answers

Well the flu is a virus. Knowing it’s a virus we know they multiply by entering a cell and passing over there rna then converted to be dna and creating other versions of them selfs until cytolysis occurs meaning the cell explodes with these new viruses and do the same with other cells. Since these dna conventions to create protein body parts of virus means there’s a increase in chemical reactions in the body and enzyme production. Also since your body has an immune system it can sense these antigens from the virus’s and cause increase in certain white blood cells to come in and kill these viruses and cells. In essence chemical and enzyme reactions increase. To survive.

For which one of the following functions is parenchyma tissue particularly suited?
A. Reinforcement and support C. Elasticity
B. Exchange of gases D. Formation or root hairs

Answers

Reinforcement and support

parenchyma, in plants, tissue typically composed of living cells that are thin-walled, unspecialized in structure, and therefore adaptable, with differentiation, to various functions. The cells are found in many places throughout plant bodies and, given that they are alive, are actively involved in photosynthesis, secretion, food storage, and other activities of plant life. Parenchyma is one of the three main types of ground, or fundamental, tissue in plants, together with sclerenchyma (dead support tissues with thick walls) and collenchyma (living support tissues with irregular walls).

ln humans, red green color blindness is a sex-linked recessive trait. If a man and a woman produce a color blind son, which of the following must be true?

a. The father is color blind.
b. Both parents carry the allele for color blindness.
c. Neither parent carries the allele for color blindness.
d. The father carries the allele for color blindness.
e. The mother carries the allele for color blindness.​

Answers

B is the answer
If it’s a recessive allele 1 parent isn’t enough, both parents have to have the recessive allele, and even then it’s a small chance. Hope this helped ^^

If a man and a woman produce a color blind son then both parents carry

the allele for color blindness.

A trait could either be:

DominantRecessive

What is a Recessive trait?

A recessive trait is usually expressed when there is the presence of two

recessive alleles in an individual or organism. A dominant  trait on the other

hand can be expressed with the organism having only one dominant allele

In this scenario, the red green color is a recessive trait

and the offspring produced is color blind which basically means that both

parents carry the allele for color blindness.

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In the citric acid cycle, the enzyme succinate dehydrogenase catalyzes a reversible reaction using FAD/FADH2 as an oxidizing/reducing agent. Which of the following statements best explains how the redox component of this reaction contributes to the reaction's ability to be reversible under cellular conditions?
A. FAD has no reduction potential when it is enzyme-bound.
B. FAD can be reduced by the sequential addition of one hydrogen at a time.
C. FAD/FADH2 is covalently bound to succinate dehydrogenase.
D. The change in the biochemical standard reduction potential is small.

Answers

The statement which best explains how the redox component of this reaction contributes to the reaction's ability to be reversible under cellular conditions is; Choice D: The change in the biochemical standard reduction potential is small.

Discussion:

A reversible process is one in which the system and environment can be restored to exactly the same initial states that they were in prior to when the process occurred, if we go backward along the path of the process.

However, the necessary condition for a reversible process is therefore the quasi-static requirement.

The quasi-static requirement in this case is that the change in the biochemical standard reduction potential is small.

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Aerobic respiration where does it occur.

Answers

While most aerobic respiration (with oxygen) takes place in the cell's mitochondria, and anaerobic respiration (without oxygen) takes place within the cell's cytoplasm

The green traits (which is hidden by the yellow trait) is considered
(Dominant)
(sneaky)
(Alternative)
(Recessive)

Answers

Answer:

probably the last one... Recessive

Explanation:

mark me brainliest if correct :D

Answer:

D-(Recessive)

Explanation:

I took a quiz with this question, and it is correct :)

How many mRNA codons are needed to make a protein that contains 5 amino acids?
a. 3
b. 5
c. 10
d. 12

Answers

Answer:

A.3

Explanation:

I got no explanation for this only thing i know is that 3 codes are needed as three basic is one codons maybe

Is that the right answer

Answers

Answer:

actually your answer is supposed to be true because this all actually happend before world war happend so your answer should be true

Explanation:

if you look you answerd false when your answer should actually be True

What is the difference between an f donor and an hfr donor?.

Answers

The Hfr donor has an F factor integrated into its main chromosome, but the F+ donor does not. ... The entire F factor would have to be incorporated into the recipient cell's chromosome.

Which type of resources form much more slowly than we use them? A: reusable B: renewable C: nonreusable D: nonrenewable

Answers

nonrenewable resources are used commonly and are quickly running out, and it takes longer for us to form more of these.

The type of resources from much more slowly than we use them is non-renewable resource. The correct option is D.

What are nonrenewable resources?

A non-renewable resource is a natural resource that cannot be replaced quickly enough by natural means to keep up with consumption.

Carbon-based fossil fuels are one example. With the help of heat and pressure, the original organic matter is converted into a fuel such as oil or gas.

Nonrenewable energy sources are not only affecting our planet's atmosphere by increasing greenhouse gas emissions.

Coal and oil combustion emits particles that can pollute the air, water, and land. Some of these particles are captured and stored, but many are released into the atmosphere.

The use of fossil fuels also disrupts Earth's "carbon budget," which balances carbon in the ocean, earth, and atmosphere.

Thus, the correct option is D.

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Mrs. W. is 68 years old and lives alone. She moves very slowly and does not respond verbally to what others say. She sometimes mumbles to herself. Her face is expressionless. She seems confused by her surroundings. She is accompanied by her daughter, who is highly observant and an accurate reporter of Mrs. W.’s past medical and psychosocial history. What possible Noncognitive Disorders could Mrs. W have?

Answers

The non-cognitive disturbances that Mrs. W. could have related to some dementia are psychosis, personality change, lack of rhythm, deficit in emotional responses, mental confusion.

It is important that the patient in these conditions is continuously assisted, to avoid situations that put her safety at risk.

An elderly woman like Mrs. W, who already has significant evolution of non-cognitive disorders, must have an effective medical apparatus and a tutor willing to help with care and daily activities.

Ideally, caregivers should develop optimal communication skills for patients with these disorders, such as a calm and gentle tone, provide the individual with a peaceful environment without too much noise or other disturbances, as well as being considerate and not neglecting the individual's needs.

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