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
Oksanka [162]
3 years ago
13

Choose all the answers that apply.

Chemistry
2 answers:
Digiron [165]3 years ago
7 0

Answer:

The cell membrane is made up of phospholipids, embedded with proteins, and controls the transfer of materials into and out of the cell.

Explanation:

g100num [7]3 years ago
3 0
The cell membrane is made up of phospholipids, embedded with proteins, and controls the transfer of materials into and out of the cell.
You might be interested in
If enough changes occur in the gene pool of a species, it is possible that a new species would be created.
lianna [129]

Answer:

Yes

Explanation:

A gene pool is the sum total of all the genes(sum of alleles)of a species and population at any given time is known as gene pool.

The new species are created in nature by four mechanisms such as geographic isolation (allopatric speciation), reproductive isolation (sympatric speciation), mating behaviour (parapatric speciation).

Due to any of these factors when population acquire unique changes in their genes and enough changes have been introduced in the gene pool of the population with time, two population become distinct from each other and not able to interbreed leads to the formation of new species.

6 0
3 years ago
Determine the electron-group arrangement, molecular shape, and ideal bond angle(s) for each of the following:
antoniya [11.8K]

The electron group arrangement of PH₃ is tetrahedral. The molecular shape is a Trigonal pyramid, and the bond angle is 93°.

<h3>What is the bond angle?</h3>

The angle between the atoms in a compound is known as the bond angle. The degree of the binding angle is specified. There is also the bond length. It is the separation between the two atoms' nuclei.

The bond angle between the atoms of phosphine is 93°. It has one lone pair. The central atom is covered with 4 atoms.

Thus, the electron-group arrangement of phosphine is tetrahedral. The molecular geometry or shape is a trigonal pyramid. The bond angle is 93°.

To learn more about bond angles, refer to the link:

brainly.com/question/1851495

#SPJ4

8 0
2 years ago
____________ limits or stops the growth of bacteria.
Kaylis [27]

Answer:

Vaccines

Explanation:

3 0
2 years ago
Read 2 more answers
A sample of glucose contains 1.250x10^21 carbon atoms, how many atoms of hydrogen does it contain?
dybincka [34]

Answer:

Hydrogen = 2.5 * 10^21

Explanation:

Chemical Formula Glucose: C₆H₁₂O₆

One of the ways you could do  this is to notice that for every carbon atom there are two Hydrogen atoms. You can state this more formally by using the formula to set up a ratio: 12/6 = hydrogen to Carbon

So if there are 1.250 * 10^21 Carbon atoms in the Glucose sample, then there will be twice as many hydrogen atoms.

H = 2 * 1.25 * 10^21 = 2.5 * 10^21 atoms

You could do this more formally by setting up a proportion.

6 Carbon / 12 Hydrogen = 1.25*10^21 /  x         Cross Multiply

6*x = 12 * 1.25*10^21                                           Combine the right

6x = 1.5 * 10^22                                                  Divide by 6

x = 2.5 * 10^21

5 0
2 years ago
Explain why a propane torch is lit inside a hot air balloon during preflight preparations. Which gas law applies?
Olegator [25]

Propane torch is lit inside a hot air balloon during pre-flight preparation because the heat from the touch is needed to heat the cold air inside the balloon, so that the air will expand and become less dense and rise, thus providing a lift for the balloon. This is line with charle's law, which states that, the volume of a fixed mass of ideal gas is directly proportional to the absolute temperature. This law implies that, as the temperature of the air inside the balloon increase, the volume of the balloon also increases.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Imagine you pour some hot soup into a bowl. You place you hands on the outside of the bowl and feel that that the bowl is very w
    10·2 answers
  • When an athlete gets hurt they apply sometimes an instant cold pack to the injury. the instant cold pack works by mixing two che
    8·2 answers
  • Do insects do photosynthesis?
    14·2 answers
  • If the difference is not great, this forms a(n) ____ bond.<br><br> Example: N2, and ____
    11·1 answer
  • Help me please thank you
    7·1 answer
  • How do molecules move to the location of the chemical change
    15·1 answer
  • I need help on science lol.
    5·2 answers
  • 2. The electrons in a bond between 2 Iodine atoms are shared
    10·1 answer
  • Anybody need a friend that is a girl? (not gf)
    15·2 answers
  • Which of the following the parts of the cell is made up of lipoprotein? A)ribosomes B)plasma memeberanes C)cell wall D)DNA​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!