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
rosijanka [135]
3 years ago
13

A molecule of water (H2O) has which bonds?

Biology
1 answer:
Dima020 [189]3 years ago
4 0

Answer: 2 covalent bonds

Explanation:

In H2O molecule, two water molecules are bonded by a Hydrogen bond but the bond between two H - O bonds within a water molecule are covalent. The dotted lines represent a hydrogen bond and the solid lines represent a covalent bond.

You might be interested in
Ultimately, it is the environment which influences natural selection and thus the evolution of populations
shutvik [7]

Answer:

The given statement is true

Explanation:

Ultimately, it is the environment which influences natural selection and thus the evolution of populations. Is it true or false

Solution

It is true that environment influences the natural selection which is mainly governed by the presence of useful resources that can support an individual. Natural selection leads to emergence of useful trait that can help an individual in adopting traits that can make him/her fit thereby causing evolution of species.

Hence, the given statement is true

5 0
2 years ago
A. Secretes hormones
Vadim26 [7]

Answer:

A. 3

B. 4

C. 5

D. 6

E. 2

F. 1

Explanation:

1. Integumentary system.

This is an organ system that consists of hair, skin, nails and exocrine glands with receptors that senses the outer stimulus and environmental conditions, through homeostasis maintain stability of the internal environment.

2. Nervous system.

It receives sensory information and signals, convert them to nerve impulses that are transmitted to the body and brain via the spinal cord using nuerons and axons. It also intergrates, retains and analyses information in the brain.

3.Endocrine system.

Secretes hormones and chemicals in response to stimulus from the nervous system to maintain balance using feedback loops i.e, negative and positive.

4. Lymphatic system.

Part of the immune system that consist of vessels that carries lymph, cleaning the blood by filtering lymph with foreign particles into the lymph node.

5. Urinary system.

Used to eliminate waste from the body, regulates blood pressure, volume and pH. It also used to retain electrolytes and metabolites.

6. Respiratory system.

Used for gaseous exchange using the blood, heart and lungs. Air enters the lungs, transported by blood and is pumped by the heart to all body parts where oxygen is dropped, carbon dioxide is collected by the veins to the lungs and released to the atmosphere.

8 0
3 years ago
Please help i will mark brainly!
madreJ [45]
5 ........................
7 0
3 years ago
Which type of vegetarian diet poses the greatest nutritional risk? A. Semi-vegetarian B. Fruitarian C. Lacto-ovo-vegetarian D. V
s2008m [1.1K]
Fruitarian because to much fruit and be bad for your health
5 0
3 years ago
Read 2 more answers
What makes a theory change over a period of time
mart [117]

Une théorie change avec les avancées scientifiques, les avancements culturels et les changements de point de vue de la société.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Summarize how psychology is a science
    11·1 answer
  • Why are some sources of sugar better than others?
    10·1 answer
  • Why does the oxygen atom in a water molecule have a negative charge?
    5·1 answer
  • The poison dart frog can have bright green, red, blue, or yellow skin that secretes a poisonous substance when it feels threaten
    14·2 answers
  • One problem with wind energy as a major source of electricity is what ?
    14·1 answer
  • GAS is an acronym for ________.Select one: a. general adaptation syndrome. b. general acceleration due to stress. c. growth adju
    15·1 answer
  • Fats and oils are usually stored in a plant's <br>roots <br>stem <br>fruit <br>seeds​
    8·2 answers
  • Define dorsiventral leaf<br>​
    6·2 answers
  • Name the the male and female reproductive organ in pteridophytes​
    6·2 answers
  • Which is correct about the difference
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!