Which animal population do scientists frequently study in order to identify specific ways to evaluate the impacts of contaminants on biological communities?

a. bottlenose dolphins

b. giant tortoises

c. mallard ducks

d. swan geese

Answers

Answer 1

Answer:

mallard ducks I think so

Answer 2

Answer:

D.

Explanation:

Galapagos tortoises have been and continue to be threatened by predation and habitat destruction from invasive species, and increasing human


Related Questions

Describe how pollution can cause acid rain, and how acid rain affects the ecosystems of surrounding areas?

Answers

Pollution specifically air pollution can cause acid. Gases such as sulphur (IV) oxide and Nitrogen (IV) oxide when they are released into the atmosphere and comes into contact with precipitation, that is rain water causes acid rain. Sulphurous acid and Nitric acid is formed thus the rain falls in acidic form.

Acid rain when it falls on the leaves of the flora (plants) causes removal of the green colouring matter (chlorophyll) thus making plants to be deficient of food. Food in plants is made my the process of photosynthesis, removal of chlorophyll in plants kills them due to lack of food.

Also when acid rain finds it's way into the water bodies through surface runoff, aquatic animals such as fishes die due to lack of favourable environment and oxygen deficiency in water. Acidity in the soil also kills important decomposers therefore soil aeration is altered.

acid rain can affect the surrounding areas by ruining its ecosystem

Drag the substances into the correct category
water
Reactants Products

oxygen
energy
carbon dioxide
glucose

Answers

Reactants: Carbon Dioxide, Water, Energy
Products: Oxygen, Glucose

Answer: 100% on edge

Reactants:: glucose and oxygen

Products:: carbon dioxide, energy, and water

Eukaryotes have three nuclear RNA polymerases. The primary function of RNA polymerase II is transcription of _____.

Answers

Answer: the answer is  protein-coding genes

(if this is right mark brainliest :))

Eukaryotes have three nuclear RNA polymerases. The primary function of RNA polymerase II is transcription of protein coding genes

what are the function of RNA   polymerase  ?

there are Three different types of RNA polymerases (RNAPs), which transcribe eukaryotic genes, such as RRNA genes are transcribed by RNA polymerase I.

mRNA, miRNA, snRNA, and snoRNA genes are mainly transcribed by RNA polymerase II, while tRNA and 5S rRNA genes are transcribed by RNA polymerase III.

short RNAs as well as the protein coding genes  are both transcribed by RNA polymerase II.

A Separate type of RNA polymerases are present in chloroplasts and mitochondria, where they specifically transcribe the DNAs of those organelles.

To know more about RNA polymerase II, visit here

https://brainly.com/question/28296829

#SPJ2

urine is made of _________​

Answers

Answer:

Answer is A

Explanation:

Urea consists of carbon, nitrogen and oxygen. You can find it in urine, sweat, blood and milk in mammals. In its most concentrated form, it is urine. Urea is a crystalline compound, and the nitrogen content is always at least 46 percent when dry.

What is the main source of nutrients for autotrophs?

Answers

Answer:

Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.

Mengapakah penggunaan mikroskop
elektron penting dalam mengkaji sel?​

Answers

Answer:

Mikroskop elektron mampu membesarkan saiz sel dengan kuasa gandaan yang tinggi

why some fruits have 1 seed and some gruits have many seeds​

Answers

Answer:

Number of seeds in a fruit depends on the number of ovules in an ovary before fertilizations. The fruits which have more seeds in them have more number ovules in the ovary of flowers such as watermelon and those with single seed have only single ovule in the ovary of flowers like mango

Answer:

Number of seeds in a fruit depends on the number of ovules in an ovary before fertilisation. The fruits which have more seeds in them have more number ovules in the ovary of flowers such as watermelon and those with single seed have only single ovule in the ovary of flowers like mango.

PLEASEE NEED HELP ASP
Match each organelle with the main life function(s) it helps the cell perform. Each basic function of life can be used more
than once, and many organelles will have more than one possible answer. Choose one answer only,

Organelle list - nucleus, mitochondria, golgi apparatus, endoplasmic reticulum, ribosomes, lysosomes, vacuoles, cell membrane, chloroplast, cell wall


The answer could either be 1. reproduction 2. interaction with the environment 3. growth 4. uses energy 5. waste production (each function can be used more than once)

Answers

Answer:

The correct answer is -

nucleus - reproduction, mitochondria- reproduction, golgi apparatus - waste production, endoplasmic reticulum - growth, ribosomes - growth, lysosomes- waste production, vacuoles - growth, cell membrane - interaction with the environment, chloroplast - uses energy, cell wall - interaction with the environment

Explanation:

A Cell has various organelles with more than one generic function such as the nucleus not just play role in cell reproduction but also plays role in regulating other organelle and cell growth by transcription. Mitochondria produces and provides energy for many functions such as growth, reproduction and substance transport.

Golgi apparatus package proteins and wastes to transfer them out of the cell. The ndoplasmic reticulum modifies the protein produced by ribosomes and helps in growth of the cell. Lysosomes digest waste and cell debris by lysosomal vesicles. Cell membrane and cell wall interact with outer environement.

which type of hormone diffuses across the plasma membrane and binds to receptors in the cytoplasm module 16.4c

Answers

Answer:

Steroid hormones.

Explanation:

Steroid hormones is a type of hormones that diffuses across the plasma membrane and binds to the receptors present in the cytoplasm. The hormones are released from the carrier protein and diffuse inside the cell across the lipid bilayer of the plasma membrane of the cells. The steroid hormones pass through the plasma membrane of a target cell and attached to the intracellular receptors located in the cytoplasm or in the nucleus.

the growth of a fungal hyphae tip is?

Answers

Fungal hyphae extend continuously at their extreme tips, where enzymes are released into the environment and where new wall materials are synthesised. ... So, in effect, a fungal hypha is a continuously moving mass of protoplasm in a continuously extending tube.

Does anybody know a nice place to watch the fireworks tomorrow around the San Francisco area??

Answers

yes,kumain kanaba ÚwÙ

Answer:

In the open

Explanation:

Or next to an attraction nearby

520 644 3017
password 12345
iam a teacher
time 2 15​

Answers

Answer:

What is this?????????????????????????

Which food contains mostly polsaccharides

Answers

Answer:

food with carbohydrates

Explanation:

they comprises of two or more mono saccharides

Which of the following is NOT part of the circulatory system?
lungs
heart
arteries
blood​

Answers

I’m not 100% sure about this one but I believe that it is lungs, seeing that the rest is blood you can just like pick the most obvious one out

Question in the picture

Answers

Answer:

bbbb

bbbbbbbbbbbbbbbbbbbbbb

Explain the evolution of altruism.

Answers

Answer:

Altruistic behavior, such as sterile worker ants caring for the offspring of their queen, evolves only between related individuals through what is known as kin selection — or so many evolutionary biologists have thought since the 1960s.

where can we find most of the gases ? to the left or right section ? explain .​

Answers

Answer:
Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions.

Explanation:
:)

When you touch an object that is very hot you quickly pull your hand back. What is the correct pathway of nerve impulses for this behavior?
A. Heat receptors in the hand, sensory neurons, brain, motor neurons, hand muscles.
B. Heat receptors in the hand, motor neurons, hand muscles, sensory neurons, brain.
C. Hand muscles, motor neurons, brain, sensory neurons, heat receptors in hand.
D. Brain, sensory neurons, heat receptors in hand, motor neurons, hand muscles.

Answers

A heat receptor>sensory neuron>brain>motor neuron>>hand muscles

Answer:

a

Explanation:

Help plzz!! I’ll mark you as brainliest
What is the definition of specific heat capacity?
O A. The amount of heat required to break the chemical bonds in 1 g of
a substance
B. The amount of heat required to form 1 g of a substance from its
elements
C. The amount of heat required for 1 g of a substance to undergo a
phase change
D. The amount of heat required to raise the temperature of 1 g of a
substance by 1°C

Answers

Option D is the correct option..

D. The amount of heat required to raise the temperature of 1 g of a

substance by 1°C

If an area has very little permeability, such as a city where the ground is mostly concrete, what will happen to most of the rainwater?
A. It will become groundwater.
OB. It will be pumped into underground reservoirs by large machines.
C. It will become runoff.
D. The type of surface it falls on does not affect rainwater.

Answers

Answer:

C

Explanation:

The water won't be able to penetrate the ground so can't become ground water and reservoirs are usually above ground not underground so it will become run off.

Permeability is the ability of the substances to get diffused easily across the surface. The concrete ground results in the rainwater becoming runoff. Thus, option C is correct.

What is permeability?

Permeability is the capacity of the water or any fluid to pass and diffuse across the substances or any membrane to get from the higher to lower concentration.

The concrete ground and roads are not permeable and do not allow water to pass through the material and effects the collection of the rainwater through infiltration.

The rainwater is unable to filter into the groundwater and becomes runoff. This runoff gets accumulated on the roads and can even lead to floods and drain blockages.

Therefore, option C. the less permeable roads cause rainwater to become runoff.

Learn more about permeability here:

https://brainly.com/question/11734873

#SPJ2

Cationic detergents are surface active agents, also known as ______, which damage bacteria by binding bacterial surface proteins and disrupting ______.

Answers

Surfactants; cell membrane

The water cycle is a closed system, meaning no water enters from beyond the system nor leaves the
system. What does that say about the importance of keeping water on Earth free from pollution?

Answers

Answer:

there are no possible changes adaptations

Explanation:

what i mean by that is if a substantial amount of pollution enters the water cycle its going to be nearly impossible for it to get out

If water present on earth is polluted anywhere in the cycle, it starts affecting the system of water and percolation as well as plants become limited that what they will do in order to clean the water. It is possible that if ground is polluted than water will also get polluted. It means that the water present on earth is same the water present from the beginning and will continue to be the same water that is available.

What is groundwater?

Groundwater has been defined as water present in the underground water below the soil as well as in the cracks of the earth. The percentage of freshwater in the world would be 30%. There are mainly three types of groundwater and these are hand-dug wells, as well assprings, and drilled boreholes.

The water stored under the ground has obtained from the rain and stored in the ground so that it can be used later. Ground water has very clean and fit for drinking and the reason could be the soil present on top and work as filter and the groundwater is free from all microorganisms.

Therefore, If water present on earth is polluted anywhere in the cycle, it starts affecting the system of water and percolation as well as plants become limited that what they will do in order to clean the water. It is possible that if ground is polluted than water will also get polluted. It means that the water present on earth is same the water present from the beginning and will continue to be the same water that is available.

Learn more about groundwater here:

https://brainly.com/question/13160768

#SPJ2

What are the methods of waste disposal ? Write in briefly.​

Answers

Answer:

Methods of waste disposal are :-

Biogas plant: - Biodegradable material is used to produce biogas and manure.

Sewage treatment plant: The drain water is treated at plants before adding it to river.

Land filings: - The waste are buried in low-lying areas and compacted with bulldozers.

Composting: - Organic waste are filled in compost pit to make compost for plants.

Recycle: - This means that you collect plastic, paper, glass and metal items and recycle these materials to make required things instead of synthesizing or extracting fresh plastic, paper, glass or metal. In order to recycle, we first need to segregate our wastes so that the material that can be recycled is not dumped along with other wastes.

Reuse: - This is actually even better than recycling because the process of recycling uses some energy. In the ‘reuse’ strategy, you simply use things again and again. Instead of throwing away used envelopes, you can reverse it and use it again. The plastic bottles in which you buy various food-items like jam or pickle can be used for storing things in the kitchen.

Refuse: -This means to say No to things people offer you that you do not need. Refuse to buy products that can harm you and the environment, say No to single-use plastic carry bags.

Repurpose - This means when a product can no more be used for the original purpose, think carefully and use it for some other useful purpose. For example, cracked crockery, or cups with broken handles can be used to grow small plants and as feeding vessels for birds.

How many genes make up the human genome?
four: adenine, thymine, guanine, and cytosine
23 pairs of genes
20,000–25,000 genes
3 billion genes

Answers

About 20,00025,000 genes make up the human genome.

GENOME:

Genome of an organism refers to the total genetic makeup of that organism. It includes all the genes present in the organism.

Genes are the basic unit of inheritance found on (deoxyribonucleic acid DNA).

A project called Human Genome Project worked to determine the sequence of the human genome and its constituent genes and it was estimated that humans have between 20,000 and 25,000 genes.

Learn more about genome at: https://brainly.com/question/20215717

C: 20,000–25,000 genes

Why does the thermosphere increase in temperature as altitude increases?

Answers

Answer:

The thermosphere is the outer layer of the Earth's atmosphere, extending from about 53 miles to more than 370 miles above the surface. The temperature increases rapidly in this layer due to the absorption of huge amounts of incoming high energy solar radiation by atoms of nitrogen and oxygen.

Explanation:

What are the masses of gray matter that lie deep within the cerebral hemispheres and that are responsible for regulating intensity and precision of voluntary movement

Answers

Answer:

Cerebral cortex.

Explanation:

The masses of gray matter that lie deep within the cerebral hemispheres is called cerebral cortex. The cerebral cortex is responsible for many brain functions such as sensation, perception, memory, association, thought, and voluntary physical action. Damage occur to cerebral cortex can leads to many cognitive, sensory, and emotional difficulties in the body. It is also responsible for regulating intensity and precision of voluntary movement.

In the image below, what molecule is being released by cellular respiration
and used in photosynthesis?
A. 02
B. CO2
C. H20
D. C6H1206

Answers

I believe the answer is b.

why is DNA a useful form of evidence for developing a phylogenetic tree?

a) DNA never changes
b) DNA is the newest thing in science
c) DNA is passed from generation to generation ​

Answers

Answer:

DNA is useful for a phylogenetic tree because DNA is passed from generation to generation.

the answer;

should be C

HAVE A NİCE DAY

Explanation:

greeetings from Turkey ツ

C , dna is passed generation to generation!

In 1980, scientists suggested that the great mass extinction of 65 million years ago (which ended the reign of dinosaurs) may have been caused by a large impact from space. What discovery gives a big boost to this idea

Answers

Answer: the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico

The discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.

What is extinction?

Extinction is defined as the disappearance of an organism or a group of organisms as a result of environmental factors or changes in the members' evolutionary processes.

It can also be defined as an evolutionary process that causes a species or population to go extinct.

When there are no longer any living members of a certain animal or plant species anywhere in the globe, the species has become extinct.

Generally speaking, species disappear for the following reasons:

Genetic and demographic phenomena.Habitat destruction in the wild.Species introduction that are invasive.Global warmingHunting and illicit trade.

Thus the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.

To learn more about extinction, refer to the link below:

https://brainly.com/question/14480057

#SPJ2

In 40 words or fewer, why do you think a 0.1% difference in DNA can
be useful to society?

(The answer is this ⬇️)


The 0.1% difference in DNA
can be used to identify
someone who has
committed a crime or free
someone who hasn't, to determine someone's family
heritage, and to help give a
person more precise
medical treatments.

To anyone who needs it

Answers

Answer:

The 0.1% difference in DNA

can be used to identify

someone who has

committed a crime or free

someone who hasn't, to determine someone's family

heritage, and to help give a

person more precise

medical treatments.

Explanation:

Easy points thxx

Other Questions
Find the measure of the third angle of a triangle if the measures of the other two angles are given.118.6 and 42.3 email about a friend asking about 3 activities suggestions that can be carried out and explain the need to keep the environmentment clean about earth day how many distinct monochlorinated products can result when methylcyclohexane is subjected to free radical chlorination under UV light Luebke Incorporated has provided the following data for the month of November. The balance in the Finished Goods inventory account at the beginning of the month was $55,000 and at the end of the month was $30,300. The cost of goods manufactured for the month was $213,500. The actual manufacturing overhead cost incurred was $55,900 and the manufacturing overhead cost applied to Work in Process was $59,200. The company closes out any underapplied or overapplied manufacturing overhead to cost of goods sold. The adjusted cost of goods sold that would appear on the income statement for November is: Eli states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions.Which is the best analysis of Elis statement? what is a conjunction? and eg. Prove: AABStepStatementReasonGiven1ABCD is a parallelogramABCDSelect a Reason!!2ABN A body starts from rest and accelerates uniformly at 5m/s. Calculate the time taken by the body to cover a distance of 1km Which redox reaction would most likely occur if silver and zinc metal were added to a solution that contained silver and zinc ions? 1. Find the Perimeter AND Area of the figurebelow.2 ft5 ft2 ft5 ft Does the point (1, 3) satisfy the equation y = 5x? yes no The following two waves are sent in opposite directions on a horizontal string so as to create a standing wave in a vertical plane: y1(x, t) = (8.20 mm) sin(4.00x - 430t) y2(x, t) = (8.20 mm) sin(4.00x + 430t), with x in meters and t in seconds. An antinode is located at point A. In the time interval that point takes to move from maximum upward displacement to maximum downward displacement, how far does each wave move along the string? Knowledge Check 01 Cost-volume-profit analysis is used to predict how changes in _____ levels affect profit. multiple choice fixed and variable production and sales costs and sales sales and production One reason why we press seam before sewing is toA.Make work fasterB.Be more accurateC.Obtains good fitD.Be done on time Which statement describes the relationship between x and y?As x increases, y decreases.As x increases, y increases.As x increases, y increases and then decreases.As x increases, y decreases and then increases. What is the plural of drive-in? Use a dictionary if necessary.O drives-inO drive-insO both If $3000 is invested at 3% interest, find the value of the investment at the end of 7 years if the interest is compounded as follows. (Round your answers to the nearest cent.)(i) annually (ii) semiannually (iii) monthly (iv) weekly (v) daily (vi) continuously In a group of 36 pupils, 10 play the flute only. 15 play the piano only. 4 play neither instrument. A student is selected at random. What is the probability the student plays both instruments? what are the lengths of SV and QT? no links. Would appreciate Im so far behind :/