1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lina2011 [118]
3 years ago
7

A lone male wolf, who doesn't have a pack, travels the forest. When he reaches a new hill that he hasn't been on before, he spen

ds a large amount of time sniffing the trees and rock outcrops. Finally, he turns and heads back from where he came, recognizing this is the territory of another wolf. What's most likely responsible for communicating this information to the wolf?
A. The tracks of other wolves on the hill
B. Pheromones
C. Markings on the trees
D. Language
Biology
1 answer:
VLD [36.1K]3 years ago
3 0

Answer:

The correct answer is option B. pheromones.

Explanation:

Pheromones are chemical substances that are released and produced by a different type of animals, into the environment, for marking their territory or affecting behaving of its species.

Wolves communicate by the chemical messages using their sense of smell. Such chemical messages are called pheromones, between different members of the same species.

Thus, the correct answer is option B. pheromones.

You might be interested in
Which 'if any' of the following are true? Aquatic animals present a greater risk to divers than any other factor. Most aquatic a
SVETLANKA909090 [29]

Answer:

B. Most aquatic animal bites result from an animal's defensive response to a perceived threat or, on rare occasions, from a case of mistaken identify.

Explanation:

4 0
3 years ago
Why would we never run out of carbon dioxide is not carbon
alexandr1967 [171]
Why not turn it back I to gas
6 0
3 years ago
For this week's CRQ, you are to design your own genetic cross between a female and a male. Be sure to include each of the follow
svp [43]

Answer and Explanation:

Punnett squares are illustrations that display the product of hybrid trait crosses by genetic breeding. Established parent genotypes and phenotypes are used and are usually compatible with Mendelian ratios and inheritance. The phnomenon influencing this behaviour is the

  • Law of Segregation,
  • Law of Independent assortment
  • and Dominance

For this cross...

Assuming Widow's peak= dominant

<u> 1. What are the dominant and recessive traits in cross?</u>

Parent generation or P generation:

gametes: Ww → Widow's peak dominant (W), No Widow's peak recessive (w)

<u>2. Is the male homozygous dominant, homozygous recessive, or heterozygous?</u>

Heterozygousity describes the allelic makeup; these traits are made of two different forms of the same gene.

Male: Ww  →  with the W.peak;  

(Thus, with both W and w this is a heterozygous trait)

<u>3. Is the female homozygous dominant, homozygous recessive, or heterozygous?</u>

However, homozygous traits are made up of the same forms of the gene called alleles.

Female: ww → without the W.peak  

(Thus, with both w ad w this is a homozygous trait)

<u>1. genotypes and phenotypes for parent and offspring...</u>

<u></u>

Assuming heterozygousity of the male , for the cross

P generation:                          Ww× ww

                            Widow's peak  ×No Widow's peak  

F1 generation:

  • genotype:                       Ww × ww       ...(from punnet square)
  • phenotype:          2 with the W.peak; 2 without

<em>∴ 50% are genotypically heterozygous while 50% is homozygous , 2 with the W.peak; 2 without </em>

6 0
3 years ago
To reproduce, female elephants produce eggs and male elephants produce sperm. Offspring are produced by the fusion of an egg wit
grigory [225]

Answer:

The right answer is B. The offspring are genetically distinct ... by sexual reproduction.

Explanation:

Sexual reproduction, as opposed to asexual reproduction, indicates that the propagation of a species involves male and female gametes. It is the main method of reproduction of multicellular organisms.

In the first stage of sexual reproduction, meiosis, the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During fertilization ("fertilization"), haploid gametes come together to form a diploid zygote and restore the initial number of chromosomes (2n).

6 0
3 years ago
Read 2 more answers
Sulfur emissions from industry combine with water in the atmosphere and form acid rain. A new factory is built very close to the
Setler79 [48]

Sulfur emissions from industry combine with water in the atmosphere and form acid rain. A new factory is built very close to the lake that Josh visits often. By examining the table that shows what pH range different species can survive, Josh decides that the aquatic life will be affected by the changes in pH that the lake. Josh correctly decides that organisms that will be the most affected are

A) perch and frogs.

B) mayfly and bass.

C) snails and clams.

D) frogs and salamanders.

The correct answer is option (C) snails and clams.

Acid rain is formed when oxides of sulfur and nitrogen combine with water molecules. Industries are one of the major contributors to acid rain. pH is a measure of acidity or alkalinity in water.

A factory built close to the lake can cause acid rain which affects the pH of the lake. Any change in the pH of the lake has an effect on the organisms in it. A pH of 7 is considered to be neutral and pH values below 7 indicates acidity and pH values above 7 indicates alkalinity. Organisms have an acid tolerance level beyond which they are affected and can die. Perch has an acid tolerance of up to pH 4.5 and frogs can tolerate an acidic pH of 4.0. The acid tolerance level of Mayfly and Bass is a pH of 5.5. Salamanders can tolerate an acidic pH of 5. Whereas, Snails and Clams have a very less pH tolerance of 6. They are highly susceptible to acidic pH.

Thus, Josh correctly decides that organisms that will be the most affected are snails and clams.



6 0
3 years ago
Read 2 more answers
Other questions:
  • A patient's blood sample shows large immature red blood cells. this may suggest a deficiency in
    5·1 answer
  • Increased blood pressure can develop into chronic ____
    12·1 answer
  • Number of species in archaebacteria
    14·1 answer
  • What two structures work together to change the volume of the chest during ventilation?
    10·1 answer
  • If you had a patient suffering from cholelithiasis, a possible non-surgical treatment could include:
    9·1 answer
  • If a dna sequence is altered from tagctga to tagtga, what kind of mutation has occurred?
    13·1 answer
  • Which best describes the cell theory?
    5·1 answer
  • Can someone help me out..?
    13·1 answer
  • During a hot dry day a plant begins to wilt and the stomata are closed. What would happen to oxygen and carbon dioxide levels in
    10·1 answer
  • Commercial crabbero catch so many blue crabs that the blue crab population decreases.Which two populations are also likely to de
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!