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
Kryger [21]
3 years ago
12

What is alternation of generation and describe how it changes through plant evolution?

Biology
1 answer:
Zina [86]3 years ago
4 0
The alternation of generations is an important concept in the evolution of plants. All land plants have alternation of generations. In mosses and their relatives (Bryophytes), the haploid gametophyte is the dominant generation, and the diploid sporophytes are sporangium-bearing stalks growing from the gametophytes.
You might be interested in
As part of maintaining homeostasis, why are hormones, secreted by endocrine cells, continuously inactivated?
IceJOKER [234]

Answer:

Homeostasis refer to as the maintainence of equillibrium within the body. Endocrine systems play a major role in maintainence of equillibrium. The hormones released are continuously inactivated by negative feeback system to maintain homeostsis.

Explanation:

Homeostasis in a body is refered as a dynamic equillibrium which constantly changes. Feedback regulation systems maintain homeosatsis.

The release of hormones into the blood is controlled by a stimulus. A stimulus can increase or decrease the release of hormones.The response to a stimulus changes the internal conditions and may itself become a new stimulus. This self-adjusting mechanism is called feedback regulation.

There are two types of feedback systems.

Negative feedback occurs when the response to a stimulus reduces the original stimulus. Positive feedback occurs when the response to a stimulus increases the original stimulus.

If the hormones released are not controlled by these feedback systems, enormous amount of hormones will change the whole internal enviornment of the body ,hence, equillibrium will be disturbed and result in death of cells and death of an indivisual.

8 0
3 years ago
Your team must design an area in your school where students can relax between classes. You need to choose a material for a walkw
Alex777 [14]

Answer: B.red bricks

Explanation: I got it correct

3 0
3 years ago
Read 2 more answers
How do animals get rid of excessive nitrogen?
lesya [120]

Answer:

Animals get rid of nitrogen by converting it int urea uric, acid and ammonia.

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following describes how polluted water sources would most likely affect one’s personal health?. Answer. Bacteria wo
statuscvo [17]
"Pathogens would invade the body and cause disease, such as giardia" is the one among the following choices given in the question that <span>describes how polluted water sources would most likely affect one’s personal health. The correct option among all the options that are given in the question is the last option or the fourth option.</span>
3 0
3 years ago
Read 2 more answers
Why is it important that the space in the chest get bigger
vivado [14]
I think it's so your lungs can expand to help you breathe properly ? You may have to wait for some more answers to come through
5 0
3 years ago
Read 2 more answers
Other questions:
  • Why are telomeres a necessary component of linear chromosomes? they maintain the length of a chromosome because dna is shortened
    5·1 answer
  • Qué es el ecosistema ?
    10·1 answer
  • The phrase and diagram represent an important law in science. That is
    9·2 answers
  • Which part of a seed grows into a root and which plant part acts as a protective covering for a seed during seed dormancy? The p
    9·1 answer
  • 1..Why do organisms need<br> perform respiration?
    6·1 answer
  • What are some terms that describe cells that fight infections? Check all that apply
    12·1 answer
  • Which of the following types of reproduction is not a typical of bacteria and archaea?
    5·1 answer
  • Which statement is true? Please help me
    14·1 answer
  • Biodiversity makes ecosystems- A. Weaker B. Stronger C. Denser
    8·1 answer
  • Which variable would be a dependent variable ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!