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
Nikolay [14]
3 years ago
8

In vertebrates, chemical messengers called hormones are secreted by the _____ system. endocrine excretory hormonal pituitary

Biology
2 answers:
____ [38]3 years ago
8 0
The correct answer should be the endocrine system.

Hormones are secreted by endocrine glands in endocrine systems. Opposite of this would be the exocrine system consisting of exocrine glands.
MakcuM [25]3 years ago
8 0

The correct answer is endocrine system.

Endocrine system in vertebrates consists of endocrine glands. Endocrine glands do not have ducts thus, they are also called as ductless glands. The glands which secretes enzymes are glands with duct, called exocrine glands.    Therefore, the hormones secreted from endocrine glands are directly poured into the blood for the action on target organs. Examples of endocrine glands are pituitary gland, thyroid gland, adrenal gland.  

You might be interested in
They are composed of chains of _____ _______ made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
e-lub [12.9K]

Answer:

amino acids

Explanation:

Proteins are made up of small units called amino acids. The proteins are composed of carbon, hydrogen, oxygen and nitrogen. In addition to nitrogen, proteins may contain phosphorus or sulphur or both. The proteins are referred to as nitrogenous compounds because they contain nitrogen element.

5 0
3 years ago
Which is part of the endosymbiont theory? Autotrophic prokaryotes evolved into mitochondria. Eukaryotes engulfed photosynthesizi
MrRa [10]

Answer:

The correct answer is eukaryotes engulfed photosynthesizing prokaryotes

Explanation:

The endosymbiotic theory or symbiogenesis is an evolutionary theory that traces the origin of eukaryotic cells from prokaryotic organisms. It explains that some of the organelles (Mitochondria and Chloroplasts) in eukaryotic cells evolved from free-living prokaryotic microbes which were ingested or engulfed. The ingested prokaryotic cells survived within the organism and developed a symbiotic relationship.

According to the theory, chloroplasts was formed when eukaryotes engulfed photosynthesizing prokaryotes and mitochondria was formed when bacteria capable of aerobic respiration were engulfed.

6 0
3 years ago
Which organelle is responsible for digesting materials and cleaning up the cell of wastes?
nlexa [21]

Answer:

Lysosomes

Explanation:

  • Lysosome are among the organelles in a eukaryotic cell. Lysosomes are formed by the golgi bodies or the golgi apparatus.
  • <em><u>The role of lysosomes is to digest and destroy old and worn out organelles together with cellular wastes. In other words Lysosomes break down food molecules, waste products, and old worn out cells or organelles.</u></em>
  • They contain powerful lytic enzymes and and acids which help in the digestion and recycling of cellular materials.
5 0
3 years ago
People can breed cats for specific traits such as coat color through the process of _____. a. natural selection b. descent with
RSB [31]

Answer:

D. Artificial Selection.

Explanation:

Normal people can't breed cats by modifying their DNA, so options b and c are eliminated. Breeding cats for specific traits is not natural, so it is not choice a, either. Instead, selective breeding is d. artificial selection.

Hope this helps!

8 0
3 years ago
Describe relationship between observation and scientific theory
SOVA2 [1]
37. Observation and scientific theory are both related. Because it needs hypothesis and experiment to be able to have an actual data to show. For example: If you want to know how a monggo seeds grow on a wet cotton. Then you should be preparing the needed things and perform the experiment. You need to observe to be able to get the scientific theory of how this experiment works. That’s how observation and scientific theory is related. They will always be together in science.
8 0
3 years ago
Other questions:
  • What process is described here? A concentration gradient of H + ions is created in the periplasmic space by actively transportin
    5·1 answer
  • Please Help. First to answer will be crowned Brainlyest
    11·1 answer
  • Which muscle group supports the entire body? <br>A) Hips<br> B) Upper thigh <br>C) Legs <br>D) Feet
    8·1 answer
  • PLEASE HELP. DUE RIGHT NOW!
    11·2 answers
  • 4. Analyze the roles of greenhouse effect<br>agriculture sector in Bhutan.<br>in the<br>-​
    7·1 answer
  • Why cell differentiation is important in the development and growth of a baby from a fertilised egg.
    11·2 answers
  • UPPIO.Stuuyisland.com Earth's Water Systems Tools Save Session Pablo is building a miniature watershed model of his city out of
    10·1 answer
  • What determines the shape of a protein? How is a protein's<br> shape related to its function?
    14·1 answer
  • Name the tiny free floating organisms that live in both fresh water and salt water
    5·1 answer
  • what technological advantages allow seafaring Arabs during the middle Ages to dominate the Mediterian Sea and trade with east Af
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!