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
belka [17]
2 years ago
9

Which ion has a negative charge?

Biology
1 answer:
son4ous [18]2 years ago
6 0

Answer:

Protein is correct

Explanation: the other three choices have positive charges

You might be interested in
Structure that carries the sperm cells
Zigmanuir [339]
<span>the ovules. Hope this helped</span>
5 0
3 years ago
How long ago did homo sapiens appear
GuDViN [60]
About from <span>1.8 to 1.3 million years ago,</span>
4 0
3 years ago
If Sedimentary Layer A occurs above Sedimentary Layer C and Sedimentary Layer B is below Sedimentary Layer C, which of the follo
Romashka-Z-Leto [24]

"The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top."

Oldest to youngest: Layer B, Layer C, Layer A

The oldest is always at the bottom, the youngest layer is at the top

5 0
2 years ago
A scientist was observing a specimen under a microscope. He obtained the specimen from pond water. He observed that the specimen
NNADVOKAT [17]

There are three ways you can solve this problem:

1.- You can guide yourself through knowledge, and therefore know the answer. There isn´t much to explain here.

2.- You can eliminate obvious options such as sarcodina or apicomplexa. Euglenoid isn´t an extremely obvious removal since it has a flagela, which can be mistook by a hairy-structure. But, if you do things correctly, obtaining your answer wont be a problem.

3.- You can do an etymologic-guess, which works really well in biology. If you guide yourself this way, you´ll bump into the answer quickly --> "cilio" means hair and according to the description the specimen was covered in hairy structures.

Hope it helped,

BiologiaMagister

3 0
3 years ago
Skin is able to prevent most microorganisms from entering the body by
Goshia [24]
The structure of the skin is an effective barrier against bacteria. The multiple layers of epidermis, while can be invaded by foreign organisms, has a high turnover rate which means it is constantly shedding, therefore even the bacteria is shed protecting the body. Lastly, the skin's lipids maintain an acidic pH which slows and stops growth and replication of bacteria.
8 0
3 years ago
Other questions:
  • Each human egg has 46 chromosomes and the sperm has no chromosomes.<br> a. True<br> b. False
    10·2 answers
  • Sleepwalking is most likely to occur in _____.
    14·1 answer
  • Alicia is developing a model of photosynthesis and respiration. Part of her model includes the inputs and outputs of each proces
    13·1 answer
  • Which is not a function of a vacuole?
    8·1 answer
  • The substitution, addition, or removal of a single nucleotide in DNA is called a(n) ____________ mutation.
    10·2 answers
  • Jim is in a crowd of people at the mall looking for his girlfriend Tammy, who was supposed to meet him for dinner. Jim realizes
    15·1 answer
  • Biologists use the system of binomial nomenclature developed by Linnaeus to assign scientific names to known living organisms. W
    10·2 answers
  • The primary customers for
    11·2 answers
  • ......................................................................................................... YOU
    12·1 answer
  • Identify the stages of the water cycle in this model
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!