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
Andrej [43]
2 years ago
8

Can someone plss help me with this and give good explanations!!!

Biology
1 answer:
nikdorinn [45]2 years ago
5 0

Answer: So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.

You might be interested in
What is the theory that states organisms best adopted for an environment are more likely to survive and reproduce?​
kondaur [170]

Answer:

natural selection

Explanation:

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

4 0
2 years ago
In the context of stress hormones and the brain, _____ has a profound effect on the hippocampus, a brain structure that plays a
tatiyna
The correct term to fill in the blank would be cortisol. In the context of stress hormones and the brain, cortisol has a profound effect on the hippocampus, a brain structure that plays a pivotal role in memory. Cortisol is classified as a steroid hormone which is produced by the adrenal gland. It is deemed as the stress hormone as it is released as a response to stress as part of the fight or flight process. From studies, cortisol was found to have effect on the hippocampus when present in high levels. It damage and kill the cells in that area of the brain. The hippocampus is the area of the brain that is responsible for the long term memory storage. So, when this part is damage then the storage for our memories would surely be affected.
3 0
3 years ago
The adjacent of materials that follow a major earthquake often generate smaller earthquakes called
Gennadij [26K]

They are called aftershocks.

3 0
3 years ago
pea plants with yellow peas are crossed. Most of their offspring have yellow peas, but about 25 percent of the offspring have gr
True [87]

Hello!

Yellow = Y

Green = y

Based on the fact that 25% of the offspring inherited two recessive alleles (we know this because in order for a recessive allele to be expressed, it must be homozygous),<u><em> the parent peas had to both be heterozygous. </em></u>

Yy * Yy will always result in:

1/4 = yy

2/4 = Yy

1/4 = YY

I hope I helped!

3 0
3 years ago
Read 2 more answers
Using the following vocab words, write them in order of smallest to largest level
7nadin3 [17]

Answer:

Cells, Tissues, Organs, Organism

I hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Seeds leaves are called
    12·1 answer
  • Complete the following sentence. During an action potential
    6·1 answer
  • If planets do not produce their own light, how are we able to see mars and Venus in the night sky
    10·2 answers
  • PLEASE HELP ASAP
    5·1 answer
  • Which of the following is the best definition of empirical evidence?
    14·2 answers
  • A paper mill located on a coastal region of Florida experienced an
    5·1 answer
  • As the charges in the diagram are brought together, which statement best describes the potential energy? And why?
    12·1 answer
  • Which of the following is a type of plankton? (1 point)shark algae squid crab
    5·1 answer
  • According to Darwin's theory of evolution, what causes a struggle for survival in<br> populations?
    6·1 answer
  • What might cause a threory to change over time
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!