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
Amanda [17]
3 years ago
7

What is the observable change in the allele frequencies of a population over time called?

Biology
1 answer:
Mrrafil [7]3 years ago
5 0
Its called microevolution
You might be interested in
5. How do enzymes found in your saliva aid in digestion?
AfilCa [17]

Answer:

the answer is C) They increase the rate of the chemical reactions involved in digestion

Explanation:

The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

8 0
3 years ago
The first scientist to classify living organisms into groups was?​
zubka84 [21]
First scientist was Carl Linnaeus
7 0
3 years ago
Which of the following best describes an aspect of a membrane's molecular structure that causes it to be selectively permeable?
atroni [7]

Answer:

<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell. </u>

<u />

Explanation:

Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.

While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.

The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.

3 0
3 years ago
Why lactic acid fermentation is considered a type of Anaerobic respiration, when both of them are different things.
zepelin [54]

Answer:

Lactic acid fermentation is a type of anaerobic respiration

(or fermentation) that breaks down sugars to produce

energy in the form of ATP. It is called anaerobic because it

occurs in the absence of oxygen . Lactic acid is generated

as a byproduct of this reaction, which is what gives this

type of fermentation its name.

and also Lactic acid fermentation is the type of anaerobic

respiration carried out by yogurt bacteria (Lactobacillus

and others)

8 0
2 years ago
In proteins, amino acids are linked by peptide bonds; in polynucleotides, nucleotides are linked by ________.
Sergeeva-Olga [200]

Answer: Phosphodiester bond

Explanation:

The backbone of DNA consists of deoxyribose nucleotides linked by phosphodiester bridges.

The 3'-hydroxyl of the adjacent sugar of one deoxyribonucleotide is joined to the 5'-hydroxyl of the adjacent sugar by an internucleotide linkage called a phosphodiester bond.

Thus, phosphodiester bond is the answer

5 0
3 years ago
Read 2 more answers
Other questions:
  • The semi fluid matrix that surrounds organelles in a cell is called the
    7·1 answer
  • What are the parts of the lipid?
    9·1 answer
  • Giving BRAINLIST if you help fast!!
    6·2 answers
  • A population of lizards lives in a marsh near the ocean. Members of this population have striped tails that can be yellow, orang
    14·1 answer
  • Lorazepam is commonly given along with a neuroleptic agent. what is the purpose of administering the drugs together?
    13·1 answer
  • The first pair of antennae in crustaceans are biramous <br> a. True<br> b. False
    7·1 answer
  • You are playing a word game with the Hes in the bag below. Each He has a letter and a numerical point value. On your next
    15·1 answer
  • What do you call protozoa that you can see with the naked eye?
    11·1 answer
  • Could someone please help me ASAP!!!
    10·1 answer
  • In the reaction 6CO 2 + 6H 2O → C 6H 12O 6 + 6O 2 carbon dioxide is one of the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!