An ecosystem is composed of biotic factors and
A. pioneer species
B. anti-biotic factors
C. niches
D. abiotic factors
Reset Selection

Answers

Answer 1
The answer should be B
Answer 2

Answer:

D-abiotic factors

Explanation: because im right


Related Questions

What is the term used for population moving into an area ?

Answers

Answer: Immigration.

Explanation: Hope that helps I'm sure that this is right

What is the main structural component of plants?

Answers

Answer: Carbohydrates

Explanation:

Carbohydrates are the most abundant structural component present in plants and microorganisms. Most carbohydrates are present in polymers such as cellulose, starch, and hemicelluloses. Cellulose is a structural component of plants that is associated with hemicelluloses and lignin (Fig.

Identify the structures of skeletal muscle

Answers

An individual skeletal muscle may be made up of hundreds, or even thousands, of muscle fibers bundled together and wrapped in a connective tissue covering. Each muscle is surrounded by a connective tissue sheath called the epimysium. Fascia, connective tissue outside the epimysium, surrounds and separates the muscles

Plz help I need help

Answers

the Cell wall is found in plant cells and not animal cells

Answer:

cell wall

Explanation:

3333333333333333333333333333333333333333333333 I'm doing this bec it won't let me send u the answer

Replicate the following sequence:
GTA..... TAG.....ATC.....CTC

please someone help me!

Answers

Answer:

I got you.

During replication you are making a copy. Remember that DNA base pairing rules of G-C,A-T.

So for this questio

assuming 5'-3' is written it would be

GAGGATTAC. This is written in a 5' ->3' way however if the question is asking not that then I would put.

CATATCTAGGAG

Explanation:

Using sodium chloride as an example of a salt, click each
of the following that is true.

A-ionic bonds hold sodium and chloride together in a salt
water solution.

B-hydrogen bonds hold sodium and chloride together in salt
water solutiion

C-ionic bonds are not present in a salt water solution

D-in salt water chloride is an ion

E-ionic bonds are present in crystal salt

F-sodiem is covalently bonded to chloride

G-in crystal salt, sodium is an lion

Answers

B,D,F I did your test

In a DNA molecule, which of the following forms a base pair with cytosine?
O A. Cytosine
OB. Thymine
O C. Guanine
O D. Adenine

Answers

Answer:

Its a

Explanation:

THANK YOU IN ADVANCE NLANG

A woman has two recessive alleles, this would mean that her alleles would be:

Answers

a homeozygous pair

I hope this helps!

help ASAP due at 7:30 What explains a broken bone healing?


look at the photo​

Answers

Answer:

1st one

Explanation:

DNA replace the old cells

in this environment, the fish represents which type of organism?
A. Heterotroph
B. Producer
C. Autotroph

Answers

Heterotroph, a fish cannot make its own food/energy so that rules out producer and autotroph

explain the adaptations of the kidney nephrons to their duty​(give three at least)

Answers

It has a selective permeable Bowman's capsule that only allows food substances and food products to pass through but prevents the passage of plasma proteins and blood cells. ... The kidney tubules are highly vascularised to ensure constant removal of reabsorbed substances hence creating more room for further reabsorption.

different between prokaryotic and eukaryotic cells​

Answers

Answer:

eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.

hope this helps <3

The main difference between prokaryotic and eukaryotic cells is that prokaryotic cells do not have a nucleus while eukaryotic cells do have a nucleus.

Hope this helps you! :)

[tex]ANSWERED:\\GraceRosalia[/tex]

Which of these is the smallest?
cells
atoms
molecules
cell membranes

Answers

Answer:

The correct answer is atoms :)

Explanation:

atoms are most likely the correct answer considering that they are so small that they will never touch anything.

33. Binary compounds are
elements in a compound.
C.
3
A.
1
B.
2
D. 4

Answers

Answer:

D. 4

Explanation:

What is the name for a complex, organized group of organisms?

Answers

I believe it’s just a System. :)

Plz help I need help

Answers

the answer isbacterial cell

Like 90% sure its bacteria cell.

5) Choose the best answer.
How does moss prevent landslides?
They adapt to surviving bad weather.
They live in the shade on the ground.
They establish themselves on rocky ground.
They turn brown or black and appear to be dead when times are dry.
They soak up the rain on steep hillsides.

Answers

Answer:

they soak up the rain on steep hillsides

I need help pin this question

Answers

Answer:

negative feed back

Explanation:

it gives sweat and causes bad acne

Answer all parts of the question:
a. Write the following number in scientific notation: 0.03054 grams
b. Write the following in ordinary notation: 3.02 x 10-5
c. Evaluate the following: (3.3 x 10-4mL) = (1.1 x 10-6 mL)

Answers

Answer:

a. 0.03054 b. 0.000032 c. sorry I am not perfect

Explanation:

a. In the number 0.03054 , you need to move the decimal point two places to the right to get to 3.054 (which is between 1 and 10). Since you moved the decimal point two places to the right, you must indicate it by saying that you multiplied 3.054 by 10−2 . Think about it: 3.054×10−2=0.03054 . b. Answer: 0.0000302 Step-by-step explanation: When 10 is to the power of a negative number, "move" the decimal dot left. 10⁻⁵ means to "move" the decimal 5 times to the left. 1. Write a bunch of extra 0's for the coefficient. (The coefficient is 3.02). 0000003 . 02 2. Count 5 place values over. 00←0←0←0←0←3 . 02 3. Put the decimal behind the digit. 00 . 0000302 4. Get rid of the 0s that you don't need. You only need one 0 left of the decimal. 0.0000302           <= Final answer c. sorry but I am not perfect at this

A. 0.03054 grams = 3.054 x [tex]10^-^2[/tex] grams

B. 3.02 x [tex]10^-^5[/tex] = 0.0000302

C. 3.3 x [tex]10^-^4[/tex] mL= 300

Powers of 10 are used in scientific notation to express extremely large or extremely small quantities. The formula is "[tex]\rm a * 10^b[/tex],"

where "a" is an integer representing a value between 1 and 10 (inclusive), and "b" is an integer representing a power of 10.

To write 0.03054 grams in scientific notation, we move the decimal point three places to the right to make the number between 1 and 10. this results in:

0.03054 grams = 3.054 x [tex]10^-^2[/tex] grams

To write [tex]3.02 * 10^-^5[/tex] in conventional notation, as indicated by the exponent, we move the decimal point five places to the left. this results in:

3.02 x [tex]10^-^5[/tex] = 0.0000302

To evaluate (3.3 x [tex]10^-^4[/tex] mL) / (1.1 x [tex]10^-^6[/tex] mL), we divide the numbers in the numerator and denominator:

[tex](3.3 * 10^-^4 \rm mL) / (1.1 * 10^-^6 \rm mL) \\= (3.3 / 1.1) * (10^-^4 / 10^-^6) \\= 3 * 10^2[/tex]

Therefore, (3.3 x [tex]10^-^4[/tex] mL) is equal to 300.

Learn more about scientific notation, here:

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4. Which is an example of a chemical change?
A
Rust forming
C.
Candy bar melting
B.
Water boiling
D.
Pencil breaking

Answers

Answer:

A.

Explanation:

A. Rust forming

is a example of a chemical change

Hope this helped you!!

Answer:

RUST FORMING

Explanation:

because it takes the chemical h2o to form rust


Why did Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation?

Answers

Answer:

Mendel formulated the law of segregation as a result of performing monohybrid cross experiments on plants. The specific traits that he studied exhibited complete dominance. Not all types of genetic inheritance, however, show total dominance. In incomplete dominance, neither allele is completely dominant over the other.

Explanation:

Hope this helps.

Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation because the first generation offspring had just one form of each trait. The second generation showed both forms of the trait due to segregation.

What is Law of Segregation?

When an organism produces gametes, each gamete receives only one gene copy, which is chosen at random. This is defined as the law of segregation. A Punnett square can be used to predict the genotype (allele combination) and phenotype (observable traits) of the offspring from a genetic cross.

This law of segregation, called the second law of inheritance, states that during meiosis cell division (gamete formation), pairs of alleles separate from each other so that only one allele is present in each gamete.

Mendel formulated the law of segregation as a result of experimenting on monohybrid crosses on plants. The specific traits he studied showed complete dominance. However, not all types of genetic inheritance show total dominance. In incomplete dominance, neither allele is completely dominant over the other.

Thus, Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation because the first generation offspring had just one form of each trait. The second generation showed both forms of the trait due to segregation.

Learn more about Law of Segregation, here:

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Plz help I need help

Answers

Answer:

vacuole

Explanation:

Answer:

Vacuole

Explanation:

Also studied this recently

Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?


The shape of the coal changes.
Oxygen is present.
A new substance is produced.
Coal is made up of more than one element.

Answers

The shape of coal changes

Which of the following best describes sickle-cell anemia?
O Caused by environmental factors that an individual was exposed to during pregnancy.
O A hereditary genetic mutation that causes a resistance to malaria.
O An inherited disorder that increases the risk of contracting malaria from mosquitos.
O A genetic mutation that is inherited from a dominant allele of one parent.

Answers

Answer: The answer should be B "O A hereditary genetic mutation that causes a resistance to malaria."

Explanation:

I do FLVS also you can find this out in your lesson 3.04 on page 5.

It says, "Sickle-cell disease is a genetic disorder that gives red blood cells a crescent shape instead of the typical disk shape. Sickle cells are stiff and sticky. They tend to block blood flow in the blood vessels of the limbs and organs. Blocked blood flow can cause pain, serious infections, and organ damage. This genetic disease is recessive, meaning the allele must be inherited from both parents to be expressed in a person’s phenotype. It is caused by a mutation in the gene that produces hemoglobin, the blood’s principle oxygen-carrying protein. Sickle-cell disease occurs more commonly in people and descendants from tropical and subtropical regions where malaria is common. Scientists have discovered that individuals with just one allele for sickle-cell disease are not only healthy, but they actually have a high resistance for the parasite that causes malaria. This resistance gives the carriers of one sickle-cell allele a great advantage over malaria, which claims more than a million lives each year, and explains why the allele for this dangerous genetic disease survives to be passed down to future generations."

Have a great day hope this helped!!!

:3

The sickle cell gene is inherited and results in sickle cell disease. You cannot catch HPV from an infected person because it is not brought on by whatever the parents did either before or during the pregnancy. Thus, option B is correct.

What are the characteristics of sickle-cell anemia?

Red blood cells are typically disc-shaped and sufficiently flexible to pass readily through blood arteries.

Red blood cells with sickle cell disease have a crescent or “sickle” shape. Because sickle cells impede blood flow to particular organs, sickle cell disease complications can develop.

The severe side effects include stroke, acute chest syndrome, organ damage, various disabilities, and even early death. Acute chest syndrome lowers the blood's oxygen content.

Therefore, A hereditary genetic mutation that causes a resistance to malaria.

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Name this organism?

Is this organism prokaryotic or eukaryotic?

Answers

Answer:

Prokaryotes

Explanation:

Prokaryotes are organisms that consist of a single prokaryotic cell. Eukaryotic cells are found in plants, animals, fungi, and protists. They range from 10–100 μm in diameter, and their DNA is contained within a membrane-bound nucleus.

...

The answers are plz help

A: Lipid

B: protein

C: Glycolipid

D: Carbohydrate

Answers

Answer:

protein

Explanation:

Carrier proteins allow moves other materials within the organism.

what is the uses of tentacle in hydra​

Answers

Answer:

Tentacles of the Hydra are the extension of the body layer that encircles the opening of the mouth, the construction of Hydra is a simple body column and highly extensible tentacles, Hydra uses these tentacles for capturing or hunting the prey.

Which of the following living things would occupy the highest trophic level?
A.
A stalk of wheat that grows in a field

B.
A chicken that eats grain

C.
A fox that eats a chicken

D.
A lynx that eats a fox

Answers

Answer:

D. A lynx that eats a fox

Explanation:

Juan and Melissa were counting earthworms for a science experiment. They had predicted that they would find more earthworms in plots that shady and lots of damp soil. They marked out 3 meters by 3 meters plots. The shadiest plots were A and D. What is another possible explanation of the student's data?

Answers

Answer:

A

Explanation:

Organisms that live near or on the ocean floor are called

Answers

Answer:

Benthos

Explanation:

Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates. Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more.

Answer:

Organisms that live near or on the ocean floor are called benthos.

hope this helps <3

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