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
GarryVolchara [31]
3 years ago
5

Why would it be correct to say that heat rises? Explain....

Biology
1 answer:
satela [25.4K]3 years ago
6 0
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
You might be interested in
Grizzly bears: As predators, bears eat several species, like moose and elk. They also eat many fruits throughout the ecosystem.
Anuta_ua [19.1K]

Your teacher likes to copy. Found this at https://examples.yourdictionary.com/examples-of-keystone-species.html


Grizzly bears: As predators, bears keep down the numbers of several species, like moose and elk. They also carry and deposit seeds throughout the ecosystem. Bears that eat salmon will leave their dropping and the partially eaten remains that provide nutrients such as sulfur, nitrogen and carbon to the soil.  

6 0
3 years ago
Since 1990, at least thirty new emergent human diseases have been identified. These include avian influenza, West
Snezhnost [94]

Answer:

2 per year

Explanation:

8 0
3 years ago
What might be a reason a soldier with an amputated arm might experience phantom limb pain?
alexdok [17]
"The body develops proprioceptors to compensate for the missing limb" is the one among the following choices that <span>might be a reason a soldier with an amputated arm might experience phantom limb pain. The correct option among all the options that are given in the question is the fourth option or option "d".</span>
8 0
3 years ago
A geneticist is studying two traits in the fruit fly - eye color and wing shape. They perform a dihybrid cross. If the genes for
Len [333]

Answer:

3/16

Explanation:

<u>According to Mendel's law of independent assortment of genes, when a dihybrid cross involves two genes that assort independently and one of the parents is dominant for the two genes and the other is recessive, the phenotypic ratio of the offspring at F2 would be 9:3:3:1</u>. The proportion of the offspring with the dominant parental traits would be 9/16, those with the recessive parental traits would be 1/16, while those with mixed traits would be 3/16 each.

Assuming the eye color is represented by E and the wing shape is represented by W. At F2

     EeWw    x    EeWw

E_W_ - 9/16 (dominant for both eye color and wing shape)

E_ww - 3/16 (dominant for eye color and recessive for wing shape)

eeW_ - 3/16 (recessive for eye color and dominant for wing shape)

eeww - 1/16 (recessive for both eye color and wing shape)

<em>Hence, the proportion of the offspring with dominant phenotype for eye color and recessive phenotype for wing shape would be </em><em>3/16.</em>

3 0
3 years ago
1. What are enzymes?
SIZIF [17.4K]
1.) Enzymes are a type of protein that speeds up the rate of chemical reactions
2.) Catalase is an enzyme in the liver that hydrogen peroxide (H2O2)
3.) By lowering the activation energy needed
4.) Catalysts
5 0
3 years ago
Other questions:
  • Which of the following characteristics of living things explains why plants bend and grow towards a light source?
    10·1 answer
  • Increasing number of passes beyond 4 does not increase sensitivity of detection of pancreatic malignancy by endoscopic ultrasoun
    11·1 answer
  • In which two continents are most species of early man found?
    6·1 answer
  • Ecological succession is typically a _______ process through which a developing ecosystem becomes _______ stable.
    8·1 answer
  • In terms of natural selection, what is the best description of an organism that is fit?
    12·1 answer
  • You discover a new organism while investigating a meteor that recently crashed. While observing it,
    10·2 answers
  • What are the molecules needed for cellular respiration?
    5·2 answers
  • Explain how these competitors are benefiting from the SAA strike​
    9·1 answer
  • What is the main substrate in the first step of glycolysis?
    14·1 answer
  • What event is most likely to occur to the brain in a classic cerebral concussion?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!