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
dimaraw [331]
3 years ago
14

What substances are hydrogen, covalent, or ionic

Biology
1 answer:
Alika [10]3 years ago
3 0
2 strands of DNA=hydrogen bonds
2water molecules=polar convalent bonds
NACL=ionic bond
H2=ionic
You might be interested in
Why is trash disposal a problem in industrialized nations?
Burka [1]

excess organic wastes


7 0
3 years ago
Read 2 more answers
Anwer the following:How hard the blood pushes on the inside of the blood vessels is called __________.The total amount of blood
Marina86 [1]

Answer:

How hard the blood pushes on the inside of the blood vessels is called Blood Pressure

The total amount of blood the heart pumps in one minute is called Cardiac Output

When blood vessels open wider during exercise, they are said to dilate

How many times your heart beats in one minute is called Heart Rate

The force that can put unhealthy tension on the heart as it is pumping is called Blood pressure

The amount of blood the heart pumps out in one beat is called Stroke volume.

Explanation:

All this concepts to the heart and cardiovascular system. It is important to know how heart is functioning to see how blood circulates.

3 0
3 years ago
Drag each tile to the correct box. Explain the process in which hormones secreted by the pancreas function with respect to incre
ValentinkaMS [17]

Answer:

1) intake of glucose molecules from the blood by specific transporters

2) high amount of glucose in the blood, sending signals toward the pancreas

3) binding of hormones with receptors on the liver

4) release of hormones from the receptors

5) synthesis of hormones by beta cells

Explanation:

During ingestion of the meal, insulin is produced in response to high blood glucose levels (concentration of glucose increases after digestion of food). Like other hormones, insulin performed its action through binding specific signals to specific receptors e.g, liver, muscle cells.  The high glucose level in the blood send signals through hormones to liver, fat, and muscle cell receptors. These receptors release specific hormones to beta cells of the pancreas. In response to the signals from receptors, beta cells synthesize insulin to minimize glucose levels in the bloodstream.  

5 0
3 years ago
Read 2 more answers
A student decides to be the subject in her own experiment. She wants to know how the amount of time she spends studying for a te
Pavel [41]

Answer:

Test Variable (independent variable)

Explanation:

X is always the independent variable/time. Test grades is dependent because it's the outcome. Trust me I took the test.

6 0
3 years ago
Molecular clocks are models that use mutation rates in dna to measure evolutionary time. true or false
Alexandra [31]
The statement is true.
3 0
3 years ago
Other questions:
  • ___________________ are mutualistic fungi that help provide nutrients to trees, shrubs, and other plants.
    12·1 answer
  • What can create submarine canyons by cutting through bottom sediments and bedrocks of seafloors
    12·1 answer
  • Which causes some genetic disorders and genetic diseases? A. poor diet B. excess alcohol C. asbestos exposure D. errors during m
    14·1 answer
  • What is geologic time, and what does it have to do with rocks?
    13·1 answer
  • Many polyploid plants, such as the bananas shown here, are grown commercially because they are often larger and healthier than n
    7·2 answers
  • What type of cell is a rose thorn
    11·2 answers
  • In which way does the circulatory system rely on the skeletal system
    8·2 answers
  • How can using a dam as a source of freshwater also increase food resources?
    15·2 answers
  • Examples of hypothesis ​
    8·2 answers
  • The function of enzymes in plants is:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!