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
Arisa [49]
3 years ago
15

Chemical messengers that are produced in one location in the body, released into the blood, and travel to other locations, where

they elicit responses
Biology
1 answer:
Nimfa-mama [501]3 years ago
5 0
I don't know weekend to
You might be interested in
What is mRNA?
Dovator [93]

Answer:

C

Explanation:

3 0
3 years ago
Name the carbohydrate which forms cell wall​
Charra [1.4K]

Answer:

Cellulose

hope this answer helps you...

5 0
3 years ago
6. What mechanisms or events are needed for a star to make heavier elements than iron?
lana [24]

Answer:

See below.

Explanation:

A star's energy comes from the combining of light elements into heavier elements in a process known as fusion, or "nuclear burning". It is generally believed that most of the elements in the universe heavier than helium are created, or synthesized, in stars when lighter nuclei fuse to make heavier nuclei. The process is called nucleosynthesis.

Our Sun is currently burning, or fusing, hydrogen to helium. This is the process that occurs during most of a star's lifetime. After the hydrogen in the star's core is exhausted, the star can burn helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Up to this point the process releases energy. <u>The formation of elements heavier than iron and nickel requires the input of energy. </u>Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. The nuclei with mass heavier than nickel are thought to be formed during these explosions.

7 0
3 years ago
Read 2 more answers
If u know something about these please help
maria [59]

Answer:

D

Explanation:

It’s right

4 0
3 years ago
Read 2 more answers
An animal with no natural enemy is a ____________.
ra1l [238]

Answer:

predator or a.pex predator

4 0
3 years ago
Other questions:
  • Observations of organisms include
    9·2 answers
  • Explain (1) what type of variation is always required for natural selection and (2) where this variation comes from?
    11·1 answer
  • A nurse had his license revoked by the bon in hawaii. when the nurse moved to texas
    13·2 answers
  • 2. Aaron is a local chef. Because he wanted to help his dad avoid a second heart attack, Aaron developed a number of
    14·1 answer
  • All deserts have high daytime temperatures.
    7·2 answers
  • The point of the link reaction is to make
    7·1 answer
  • Figure 7-17
    11·2 answers
  • The rate limiting reaction of aerobic respiration involves the phosphorylation of __________ by the enzyme _______ . The rate at
    15·1 answer
  • Contrast primary succession and secondary succession. Give an<br> example of each.
    15·1 answer
  • What should I do for my media presentation ‍‍‍‍
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!