13. Researchers are studying lichens growing on trees in a forest ecosystem. At the beginning of the study, the researchers identified twelve
lichen species in the forest. Later, a forest fire happened in the study area. The researchers returned to the area and found only six lichen
species.
Which inference is best supported from the researchers' observations?

Answer Ruminants differ from non-ruminants (called monogastrics) because they have a four-chambered stomach. The four compartments are called the rumen, the reticulum, the omasum, and the abomasum. The rumen and the reticulum are connected and work in concert and are therefore sometimes called the “reticulorumen”.:The digestive enzymes of these animals cannot break down cellulose, but microorganisms present in the digestive system can. Since the digestive system must be able to handle large amounts of roughage and break down the cellulose, pseudo-ruminants have a three-chamber stomach. hope this helps have a nice night ❤️❤️❤️

Explanation:

Explanation:

ruminant animals have 4 intestine

Answer: i’m preeeetty sure it’s B

Explanation:taking the test rn and that’s what i’m gonna put

Answer:

Explanation:

Multiple alleles

Answer:

Can of soup.

Explanation:

Can of soup will provide 1 mole of sodium in the least mass because the concentration of sodium in can of soup is higher than other food items. The can of soup has 300 mg of sodium while on the other hand, honey nut, frosted flakes, Oreos and pop Tarts has 190 mg, 150 mg, 80 mg, and 180 mg of sodium respectively which is lower than can of soup so we can say that less amount of soup provides more sodium.

Answer:

DNA: 2 strands, Deoxyribose, Nucleus, A pairs with T

RNA: 1 strand, Ribose, Nucleus & Cytoplasm, A pairs with U

Explanation:

Answer:

Independents are all the different liquids used ie: soaps, water, hand sanitizer.

Dependent is the bacteria growth.

Explanation:

This is because you are constantly change the liquids so that is independent. The bacteria growth is dependent since the growth depends on the different liquids.

Explanation:

I'm not too sure but I would find the molar mass of nitrogen dioxide and then divide.

N - 14.01

O - 16.00

(14.01) + 2(16.00)

14 01 + 32.00 = 46.01

14.01 / 46.01 = 0.3044....

30.4%

32 / 46.01 = 0.6955....

69.6%

Answer:

fur color

Explanation:

Nothing expect the color of fur can be determined by the parents.

Answer:

80°C

Explanation:

The change in temperature can be calculated my using the specific heat capacity equation as follows;

Q = m × c × ∆T

Where;

Q = amount of energy (J)

m = mass (kg)

c = specific heat capacity of water (J/kg°C)

∆T = change in temperature (°C)

According to this question, Q = 201,600J, m = 600g = 600/1000 = 0.6kg, c of water = 4200J/kg°C

Using Q = m × c × ∆T

201600 = 0.6 × 4200 × ∆T

201600 = 2520 × ∆T

∆T = 201600 ÷ 2520

∆T = 80

Change in temperature (difference in initial and final temperature) is therefore 80°C

Answer:

A cheetah living in a zoo lives 10 years longer than average.

Explanation:

because Cheetahs living in captivity generally live a great deal longer than those in the wild, the life span of wild cheetahs is about 8 to 10 years, as opposed to 12 to 17 years for those in captivity according to the National Zoological Park, a sure fire sign of a healthy life.

The best example of natural selection is that the shell of a crab becomes harder over time as a result of being hunted by a predator, which is mentioned in Option 2, as the other options are not absolutely correct for it.

Natural selection is the process where certain traits that are advantageous to an organism's survival and reproduction become more common in a population over time. In option (2), the harder shell of a crab is an adaptation that helps the crab avoid being preyed upon by its predator. As a result, the crabs with harder shells are more likely to survive and reproduce, passing on their advantageous trait to their offspring. Over time, the population of crabs will have a higher proportion of individuals with harder shells, leading to the evolution of this trait in the population.

Hence, the best example of natural selection is that the shell of a crab becomes harder over time as a result of being hunted by a predator, as mentioned in Option 2.

Learn more about the process of natural selection here.

https://brainly.com/question/1054405

#SPJ3

Answer:

Answer:

was your old username glitchkpopstan

Answer:

Biome greatly affect the plant and animal life it contains.

Explanation:

The environmental conditions in the biome greatly affect the plant and animal life that are present in it because only those animals and plants survive or present in that environment who adapted their selves or show tolerance in that environment. If there is change occur in the climatic condition of that environment the animals and plants that have resistance will survive while others disappear or eliminated from that environment.

Answer: (Answers may vary.)

I used this website, that provides US climate data, to obtain climate data for Barrow, Alaska. This part of Alaska has a tundra biome with the following conditions:

Annual high temperature: -8.2°C

Annual low temperature: -14.2°C

Average temperature: -11.2°C

Average annual precipitation (rainfall): 115 mm

Average annual snowfall: 990 mm

Barrow is covered in ice and snow for nine months of the year. During spring, millions of birds return to the area from their southern wintering grounds. Thousands of bowhead and beluga whales also migrate through the area in spring. In this region, the warm and wet period only runs from July to August. Most plants grow during this time. Food is scarce during the coldest period, which runs from December to March. During this time, many animals hibernate to survive.

Explanation: edmentum/plato

Answer:

A major reason for the lack of any substitution effect with aquaculture, says Longo, is that many farmed species, such as salmon and bluefin tuna, are top predators so farming them requires feed made from other fish. ... “But it's hard to take a top marine predator and feed it soy meal,” Wiber says.

Explanation:

Answer:

Motor Energy. Energy is moved starting with one article then onto the next when a response happens. Energy comes in numerous structures and can be moved starting with one item then onto the next as warmth, light, or movement, to give some examples. For the blue ball to move to the situation of the green ball, energy should be given to the blue ball.

Explanation:

Answer:

D

Explanation:

When given speed and frequency, the wavelength is found by dividing the speed by the frequency. In this case, .61/1045=~.00058.

Answer:

count them

Explanation:

The ecosystem includes biotic and abiotic factors, where X is a biotic factor and Y is the abiotic factor. Therefore, option A is correct.

An ecosystem is a collection or community made up of both living and non-living things, as well as their interactions. Both natural and artificial ones are possible. There are two parts to any ecosystem: biotic and abiotic components.

An ecosystem can be divided into its biotic constituents, which include all of its living members (plants, animals, bacteria, fungi, etc.), and its abiotic constituents, which include minerals, the environment, soil, water, sunshine, and all other nonliving elements.

Thus, X represents biotic factors and Y represents abiotic factors. Therefore, option A is correct.

Learn more about ecosystems, here:

https://brainly.com/question/12162583

#SPJ3

Answer:

That's outer space because it's unusable by us organisms

Answer: Protists are unicellular eucaryotes, which therefore have a nucleus. They live in moist environments and are not photosynthetic, although Euglenoides, which can be photosynthetic are sometimes classed as protists, sometimes as plants.

Explanation:

Answer:

Protists are organisms composed of one or more cells.

Protists’ cells contain a nucleus.

Protists reproduce aseually or seually.

Protists live in moist environments.

Explanation:

I got it right <3

Answer:

1a. The template DNA strand, from which the mRNA is synthesized, is 5’ CAAACTACCCTGGGTTGCCAT 3’

(RNA synthesis proceeds in a 5’ à 3’ direction, so the template strand and the mRNA will be complementary to each other)

b. The coding DNA strand, which is complementary to the template strand, is 5’ ATGGCAACCCAGGGTAGTTTG 3’

c. The sequence of the mRNA is 5’ AUGGCAACCCAGGGUAGUUUG 3’

(the sequence of the mRNA is complementary to the template strand and identical to the coding strand with U substituted for T)

d. The third codon is 5’ ACC 3’.  Therefore, the corresponding anti-codon is 5’ GGU 3’

2. Below is a table for the genetic code:

T

C

A

G

T

TTT Phe (F)

TTC "

TTA Leu (L)

TTG "

TCT Ser (S)

TCC "

TCA "

TCG "

TAT Tyr (Y)

TAC "

TAA Stop

TAG Stop

TGT Cys (C)

TGC "

TGA Stop

TGG Trp (W)

C

CTT Leu (L)

CTC "

CTA "

CTG "

CCT Pro (P)

CCC "

CCA "

CCG "

CAT His (H)

CAC "

CAA Gln (Q)

CAG "

CGT Arg (R)

CGC "

CGA "

CGG "

A

ATT Ile (I)

ATC "

ATA "

ATG Met (M)

ACT Thr (T)

ACC "

ACA "

ACG "

AAT Asn (N)

AAC "

AAA Lys (K)

AAG "

AGT Ser (S)

AGC "

AGA Arg (R)

AGG "

G

GTT Val (V)

GTC "

GTA "

GTG "

GCT Ala (A)

GCC "

GCA "

GCG "

GAT Asp (D)

GAC "

GAA Glu (E)

GAG "

GGT Gly (G)

GGC "

GGA "

GGG "

a. The following codons can be mutated by one base to produce an amber codon:

CAG    Gln

AAG    Lys

GAG    Glu

TCG    Ser

TTG    Leu

TGG    Trp

TAA    Stop

TAT    Tyr

TAC    Tyr

b. From part a, CAG (Gln) and TGG (Trp) can become amber stop codons through EMS.

c. From part b, both of the resulting amber codons could be suppressed by amber nonsense suppressors generated by EMS.

3a. The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.  The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.

b. Template strand is the DNA strand off which the mRNA is synthesized.  The coding, or non-template, strand is the DNA strand complementary to the template strand; it has the same sequence (except for T for U substitutions) as the mRNA.

c. The Pribnow box is a sequence of six nucleotides (TATAAT) positioned at -10 that signals where transcription initiation should begin in prokaryotic DNA.  The Shine-Delgarno sequence is a short, purine-rich region in the mRNA that is complementary to the rRNA within the 16S ribosomal subunit.  The sequence signals which AUG acts as the translation start in mRNA.

4a. False, a wobble allows the anticodon in the tRNA to hybridize with different codons in mRNA.

b. False, a frameshift mutation affects all the subsequent amino acids.

c. False, only one codon (AUG) encodes for the start of protein synthesis; three codons signal the end of protein synthesis.

d. False, the wobble is first base (5’ to 3’) in the anticodon.

e. True, RNA can be used as a template for DNA synthesis in a process known as reverse transcription.

f. True.  For example, a single base substitution causing CAT to change to AAT would signal a termination.

g. False, the Wobble Hypothesis explains how alternate base pairing can occur with the first nucleotide (going from 5' to 3') in the anticodon.

5a. Digestion of RNA with alkali will cleave the strand after each 3’ phosphate.  Therefore, the products remaining will consist of pppNp, Np, and N-OH

b. If RNA was synthesized in the 3’ to 5’ direction (i.e. by adding ribonucleotides to the 5’ end), then the pppNp and Np fragments should be labeled with tritium.

c. If RNA was synthesized in the 5’ to 3’ direction (i.e. by adding ribonucleotides to the 3’ end), then the Np and N-OH fragments should be labeled with tritium.

d. Since the N-OH fragments were labeled with tritium, RNA synthesis must occur in a 5' to 3' direction.

6. In a missense mutation, the new nucleotide alters the codon so as to produce an altered amino acid in the protein product.  With a nonsense mutation, the new nucleotide changes a codon that specified an amino acid to one of the stop codons (TAA, TAG, or TGA). Therefore, translation of the messenger RNA transcribed from this mutant gene will stop prematurely.

Explanation:

:)

Answer:

true

Explanation:

Answer:

because nutrients cannot be stored in the soil for a long time  

Explanation:

In rainforests, high temperatures and humid conditions lead to the rapid decomposition of the organic matter in the soils, which releases nutrients rapidly. However, rainforest soils are poor in nutrients due to rains that wash dead organic material from them. Moreover, rainwater is filtered naturally into the ground, thereby extracting (leaching) nutrients off the surface.

Answer:

The answer would be Valine.

Answer:

Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

b.infectious disease specialist and virologist

c.zoologist,marine biologist and animal biologist

Answer:

a,1 b,2 c,3 d,4

Explanation:

Answer:

the first one :))))))))

Answer:

upper and lower seasonal

Explanation:

Answer:

B

Explanation: