2. What do you call the environmental conditions that help balance the
ecosystem?
A. Limiting reagent
C. Limiting factor
B. Population density
D. Index of diversity​

Answers

Answer 1

Answer:

B

Explanation:

Answer 2
Answer:Population density

Explanation :

Related Questions


Environmental influences begin at birth and continue throughout life.
Please select the best answer from the choices provided
True or False.

Answers

i believe the correct choice is true

Answer:

On ed2020 the answer is false.

Explanation:

True or False, there are genes in our bodies that stop cells dividing too
fast?

Answers

Answer:

true

Explanation:

true true true true true

A silk fiber is made from?

Answers

Answer:

The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).

Explanation:

Hope this helps :D ( I just copied and pasted)

Answer:

Fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons

Explanation:

Seafood Watch recommends which seafood _______.
a. to buy or avoid
b. to catch and sell
c. to harvest sustainably
d. is safe to eat

Answers

Answer:

a

Explanation:

to buy or avoid

Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.

What is seafood?

Seafood is food obtained from the sea. Unsustainable fishing methods, such as dragging and dynamite fishing, entrap or kill various species that are not necessarily targeted by the fishing industry. By identifying varieties of seafood that have been caught sustainably, Seafood Watch promotes them over those that have not.

The theory is that since only fisherman who employ sustainable practices are financially rewarded, they will outperform rivals. Based on rigorous scientific standards for environmental sustainability, our Seafood Watch program assigns grades to seafood collected or raised all around the world.

Our suggestions can be used by customers and business owners to locate seafood that has been farmed sustainably. Numerous species are included in the exhaustive list, along with information about where in the water they were caught—from the wild or from farms—and how they were harvested.

Therefore, Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.

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The law of conservation of mass states that:
O Mass can be created but energy can only be transferred
O Energy can be created but mass can only be transferred
Matter and energy cannot be created nor destroyed, only transferred
Matter and energy can be created and destroyed, not transferred

Answers

Answer:yesThe law of conservation of mass states that:

O Mass can be created but energy can only be transferred

O Energy can be created but mass can only be transferred

Matter and energy cannot be created nor destroyed, only transferred

Matter and energy can be created and destroyed, not transferred

Explanation:

what makes the red blood cell special, why is it special, how is it different than other cells, what is its primary function. (Minimum 5 sentences)

Answers

Red blood cells carry oxygen from our lungs to the rest of our bodies. It carries a special protein called haemoglobin, which helps carry oxygen from the lungs to the rest of the body, it has no nucleus and can easily change shape

I hope that helped :(

how would you describe the motion of a transverse wave

Answers

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Explanation:

hope it helps you.

Which substance is a product of glycolysis?

A. Lactate
B. Oxygen
C. Pyruvate
D. Water

Answers

B oxygen is the answer
Glycolysis is about breaking sugar
It will produce two pyruvate two nadh two atp
So C

Which of the following is not a possible sign of a drug addiction?

A.
engaging in risky behavior to obtain drugs
B.
allowing drug use to interfere with basic life functions
C.
hanging out with people who use drugs often
D.
using drugs to cope with personal problems

Answers

Answer: D

Explanation:

I believe its D because people with PTSD take pills which are considered as a type of drug pills to get over their anxiety and can calm their nerves. They aren't addicted to this type of pill, they just take it because they need it, not cuz they want it.

The following is not a possible sign of a drug addiction D. using drugs to cope with personal problems. Thus, option "D" is correct.

What are the different stages of drugs?

The first stage of drug use is the stage in which the individual starts and continues to use the substance for various reasons. In the tolerance stage, the brain has made significant changes in response to the substance and can no longer produce the same mental or physical effects. The next stages of dependence and addiction are characterized with cravings for the substance, inability to maintain daily responsibilities, spending extra time seeking out the substance and using.

Thus, option "D" is correct.

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Which of the following cells have a nucleus?

- Animal cell
- Bacteria cell
- Plant cell

Which of the following cells have a cell wall?

-animal cell
- bacteria cell
- plant cell

Answers

Answer:

Animal and Plant cells both have a nucleus, and only the Plant cell has a cell wall.

Explanation:

Hope this is correct. If it is, please give me Brainliest.

Answer:

An animal cell and plant cell both have a nucleus. Plant cells have a cell wall because the cell wall helps protect and support the plant cells.

Please help me ASAP real quick n easy

Answers

Answer:

Carbon monoxide gas.

Explanation:

The others are direct sources of groundwater pollution as the go directly on the ground. Hope this helps!

what body systems ate most pikely involved in sensing and responding to a sharp object

Answers

Answer:

The nervous system, the integumentary system, the muscular system (and the skeletal system) are all involved in responding to a sharp object.

Explanation:

Which are examples of harmful mutations? Check all that apply.

Answers

Answer:

Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:

Answer:

Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:

Explanation:

Please help me
Where in a cell does most ATP production take place? Question 6 options:

A. nucleus

B. mitochondria

C. lysosomes

D. cell wall

Answers

Answer:

The answer is B mitochondria

Explanation:

Most of the ATP in cells is produced by the enzyme ATP synthase, which converts ADP and phosphate to ATP. ATP synthase is located in the membrane of cellular structures called mitochondria.

Another name for a fertilized egg is a

Answers

Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.

15. List 3 characteristics of a tropical rainforest:

Answers

Answer: 1. very high annual rainfall

              2. high average temperatures

              3. high levels of biodiversity

Explanation:

Answer:

Dense, lush, exiotic

Explanation:

tropical forests are very thick with vegetation, and there's lots of it, meaning the forest is lush, or healthy. Exotic meaning it is full of interesting animals and plants found no where else.

hope this helps!

-lily :)

Select all the correct answers,
Based on these images, what can you conclude about the organisms?

20 points!

_____________________

A. They’re a mixture of vertebrates and invertebrates
_____________________

B. They have similarities in their embryonic stages that don’t exist in their adult forms
_____________________


C. They all undergo metamorphosis
_____________________


D. They all contain a backbone, or spinal column
_____________________

E. They’re the same species of organism
_____________________

Answers

Answer:

D they all contain a back bone

Explanation:

because they are vertebrates

Answer:

D.) correct on plato

Explanation:

Describe each of the following:
Sickle Cell Anemia
Diabetes
Acne
HELP!!

Answers

Answer:

1. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons.

Treatments: Blood transfusion

Symptoms: Pain

2. Diabetes is the condition in which the body does not properly process food for use as energy. Most of the food we eat is turned into glucose, or sugar, for our bodies to use for energy. The pancreas, an organ that lies near the stomach, makes a hormone called insulin to help glucose get into the cells of our bodies.

3. Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages.

BRANLIEST PLSSSS HELPPPP

Answers

Answer:

I would agree D because energy cannot be created or destroyed in a chemical reaction :)

Explanation:

What do the three nucleotide bases on an mRNA molecule (called a codon) provide a code for?
six amino acids
two amino acids
three amino acids
one amino acid

Answers

Answer:

c. three amino acids

Explanation:

i know this from my exam in fifth grade. your welcome ;)

An mRNA is made up of the 4 nitrogenous bases A,U,C and G where the thymine is replaced by U for uracil. An mRNA molecule is made up by a codon of three amino acids.

What is amino acid ?

An amino acid is made up by the acidic as well as basic group where the acidic group is carboxylic acid and the basic group is amine group.

A codon is made up by the three amino acids where the three of the amino acids together called as codon makes up a nucleotide together and the molecule it codes for makes a long chain of proteins together making up the structure of the desired machinery as per signals and the mechanisms that are assigned to it.

A codon makes up the together the amino acid and then the chain and together it makes up the protein where the long polypeptide makes up the structure that is tertiary in nature.

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Change TCA-GAT from DNA into mRNA

Answers

Answer:

AGU-CUA

Explanation:

An mRNA sequence is made using a DNA sequence as a template. The sequence is dictated by complementary base pairing.

DNA uses the bases A, T, C and G. A is complementary to T and G is complementary to C.

RNA uses the bases A, U, C and G. A is complementary to U and G is complementary to C.

When transcribing DNA to RNA:

C is paired with GG is paired with CA is paired with UT is paired with A

Therefore, TCA-GAT  is transcribed to AGU-CUA

Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Check all of the following that could be used to decide whether the things Judy saw were living. (

Answers

Answer:

Living Cells created from the dead grass

Explanation:

Because the water has nutrients.

what are energy-giving nutrients

Answers

Answer:

The nutrients that provide energy are commonly referred to as macronutrients (carbohydrates, lipids, and proteins). Carbohydrates and proteins provide a similar amount of energy per gram of food.

Explanation:

up to about three thousand million years ago there was no oxygen in Earth's atmosphere today about one-fifth of the atmosphere is oxygen gas. suggest what caused this change???


pls help​

Answers

Answer:

Oxygen makes up about one-fifth the volume of Earth'­s atmosphere today, and is a central element of life as we know it.

But that wasn'­t always the case. Oxygen, although always present in compounds in Earth'­s interior, atmosphere, and oceans, did not begin to accumulate in the atmosphere as oxygen gas (O2) until well into the planet'­s history. What the atmosphere was like prior to oxygen'­s rise is a puzzle that Earth scientists have only begun to piece together.

Earth coalesced a little more than 4.5 billion years ago from bits of cosmic debris. Liquid oceans existed on the planet almost from the beginning, although in all likelihood they were repeatedly vaporized by the massive meteorites that regularly clobbered the planet during its first 700 million years of existence. Things had settled down by 3.8 billion years ago, when the first rocks that formed under water appear in the geologic record. (They exist in what is now southwest Greenland.)

If Earth had water, it must have had an atmosphere, and if it had an atmosphere, it must have had a climate. What was Earth'­s early atmosphere made of? Nitrogen (N2), certainly. Nitrogen makes up the bulk of today'­s atmosphere and likely has been around since the beginning. Water vapor (H2O), probably from volcanic emissions. Carbon dioxide (CO2), also emitted by volcanic eruptions, which were plentiful at that time. And methane (CH4), generated inside the Earth and possibly also by methane-producing microbes that thrived on and in the seafloor, as they do today.

Carbon dioxide, water vapor, and methane played an important role in Earth'­s subsequent development. Four billion years ago, the Sun was 30 percent dimmer, and therefore colder, than it is today. Under such conditions, Earth'­s water should have been frozen, yet clearly it wasn'­t. The water vapor, carbon dioxide, and methane acted as greenhouse gases, trapping heat and insulating the early Earth during a critical period in its development.

Of oxygen, meanwhile, the early atmosphere held barely a trace. What did exist likely formed when solar radiation split airborne molecules of water (H2O) into hydrogen (H2) and oxygen (O2). Hydrogen, a lightweight gas, would have risen above the atmosphere and slowly been lost to space. The heavier oxygen gas, left behind, would have quickly reacted with atmospheric gases such as methane or with minerals on Earth'­s surface and been drawn out of the atmosphere and back into the crust and mantle. Oxygen could only begin to accumulate in the atmosphere if it was being produced faster than it was being removed'—in other words, if something else was also producing it.

That something was life. Although the fossil evidence is sketchy, methane-producing microbes may have inhabited Earth as long ago as 3.8 billion years. By 2.7 billion years ago, a new kind of life had established itself: photosynthetic microbes called cyanobacteria, which were capable of using the Sun'­s energy to convert carbon dioxide and water into food with oxygen gas as a waste product. They lived in shallow seas, protected from full exposure to the Sun'­s harmful radiation. (To learn more about these organisms and the fossil evidence for them, watch the accompanying video "Early Fossil Life.")

Which of the following words describe most of the trillions of cells in your body?

A. Specialized

B. Undifferentiated

C. Pluripotent

D. Embryonic

Answers

Answer:

A. specialized

Explanation:

A cell is the basic unit of life. However, there are many different types of specialized cells. This means they are modified by size, shape, or function according to their purpose. Specialized cells make up tissues, tissues make up organs, and organs make up the systems that work together to make up our bodies.

Are there any mammalian cells that would be a good source for dividing cells?

Answers

Answer:

yes

Explanation:

BRANLIEST PLS HURRYy

Answers

Answer:

Illustration B

How long did it take to purify Interferon? *

7 years
17 years
27 years
37 years

Answers

i think 17 years is right but i’m not sure
it takes about 17 years for it to be purified.

What is the main negative effect of slash and burn deforestation in rain forests?


The erosion of thin, fragile tropical topsoils

Heavy smoke in the air causes respiration problems for humans

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Bare land warms absorbs heat and warms the surrounding air faster than forested areas.

Answers

Answer:

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Answer:

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Explanation:

i had this on a quiz and it was right =]

Which muscle is the most capable to provide the most strength for a frog to jump?
a)lower forelimb
b)upper forelimb
c)calf muscle
d)thigh muscle

Answers

Answer:

D. thigh muscle

Explanation:

Other Questions
What is negative 38 plus 11? Summary - Lesson 10: Quality Assurance Inventory Management, and Roles of Central Service and IT Exam.1) Which piece of equipment helps to regulate a patient's body temperature?A) Infusion pumpB) SCAC) Hot and cold therapy deviceD) Hypo/hyperthermia unit2) Maintaining accurate and legible records in the central service department isA) optional.B) mandatory.C) only necessary in emergencies.D) done on a case-by-case basis. 3) When keeping records of sterilization cycles and other areas that require monitoring in the central service department, which of the following is not required?A) AccuracyB) CompletenessC) LegibilityD) Verification by the surgeon 4) Items requested due to lack of inventory on hand can be referred to as a(n) ________ system.A) PARB) requisitionC) receivingD) STAT5) If a central processing professional accidentally gets stuck by a needle that came down in the decontamination area within a contaminated surgical tray, a _______ may need to be performed to prevent it from occurring again.A) customer surveyB) customer complaintC) root-cause analysisD) central processing professional survey6) What should the technician do if a sterilized item hits the floor?A) Check for holesB) Completely reprocess itC) Pick it up and send it to distributionD) Replace the packaging7) A surgeon may request a specific item for a particular case that isn't a part of the normal inventory; this can be referred to as a(n)A) surgical implant.B)ABC analysis.C) requisition.D) specialty item.8) Wearing the appropriate PPE can protect the central processing technician fromA) breaking instruments.B) smelly scrubs.C) getting firedD) pathogens.9) Chemicals used in the decontamination area shouldA) be measured according to manufacturer's instructions.B) not be used on instruments.C) be used only if enzymatic.D) be used only with soiled instruments.10) The central supply technician should check the _______ to visually confirm that instruments have gone through the sterilization process.A) external indicatorB) internal indicatorC) muslin wrapD) nonwoven wrap Que es una fuente luminosa? PLZ HELP!!!!!!!!!!!!!!!!! LOTS OF POINTS!!!!There are 6 racers who went on a 25 meter race!!X=time in seconds Y=distance in meters 1) The winner race D (line purple) won the race in 9.6 seconds! Equation for line y=2.5x+1How fast was this person traveling? Write in unit rates 2) what would the graph look like if one of the riders fell off their tricycle __________ ___________ are movements you do to loosen up your joints. A .Dynamic StretchesB. Static Stretches Scientists are studying the evolution of the sloth. They have fossils from 30, 20, 15 and 10 million years ago. Which fossil is most similar the the modern-day sloth? * Todays teens dont only interact in person. How do you think peer influence through social media and texting might impact teens decision making, and what positive and negative consequences could result? Consider what you have learned about how the presence of teens can impact risky behavior. using the map above, what number is on the state with the capital city of Augusta I need help with this IMMEDIATELY I will give 20 points and give a brainliest answer if someone answers it. PLZ HELP ME NOW!!! WITH BIOLOGY!!! Mi amiga es ___ buena estudiante. Le gusta ir a la escuela.A. un. unaC. elD. la What is not important to keep in mind when making observations about toddlers A store sells toys in bulk. It sells wooden blocks for $5 a pound and plastic bricks for $10a pound. How many pounds of wooden blocks and plastic bricks should be used to make aA 10-pound mixture that would sell for $80? Fours, fives, and sixes had to wear jackets that were buttoned in the back. What was the purpose of these? The Giver Here ...... your notebook and dictionary (is ,was,were) DatePage1. An organic compound is found to contain thefollowing constituents :C = 33.8%. H = 4.7%., N - 13:2%, Cl= 33.4%and rest is Oxygen. Determine its empirical mass? What is an advantage of a digital portfolio?A. You can keep hard copies of documents in it.B. You must have a digital device to view it.C. You can easily update it.D. You don't have to organize it. Given: -4 - (-7), use this expression and the idea of a balloon model to describe what happens to the hot air balloon.a. Where does the balloon start? b. Do you add or subtract something from the balloon? c. What do you add or subtract from the balloon? d. Where does the balloon end up? difference between molar mass and molecular mass? Which statement defines the problem-solution organizational structure? It is used to highlight the similarities and differences between two people, objects, or ideas. It is used to place the events of an episode or an experience in time order. It is used to present issues or conflicts, and then offer suggestions on how they might be resolved. It is used to analyze what caused a particular problem. Choose the correct verb to fill in the blank. Los maestros______en la oficina. *A.vaB.estC,esD.estnE.van