Toxins are microbial proteins with a strong specificity for a target cell that exert extremely powerful and toxic effects on that cell.
<h3>What are toxins?</h3>
Toxins are molecules that are produced by certain organisms which are deadly to other organisms when these organisms come in contact with them.
Toxins are produces mostly by microorganisms as well as some plants and animals such as fishes.
Toxins are mostly proteins products are usually specific for their targets cells.
Therefore, microbial proteins with a strong specificity for a target cell that exert extremely powerful, and sometimes deadly, effects on that cell are called toxins.
Learn more about toxins at: brainly.com/question/1235358
B. Ancient pots used to hold milk are about the same age as the lactase persistent mutations
Answer:
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones
Relative dating best helps determine fossil age. It's where layers of sedimentary rock and fossils pile up on top of each other; the oldest fossils being in the bottom layer and the youngest in the top.
Answer:
0.625 MOhms
Explanation:
Since the resistance of the unmyelinated axon ,R is inversely proportional to the square of its diameter, d
R ∝ 1/d²
R₁/R₂ = d₂²/d₁² where R₁ = resistance of first axon = 10 MOhm, d₁ = diameter of first axon = 1 mm, R₂ = resistance of second axon and d₂ = diameter of second axon = 4mm
So, R₂/R₁ = d₁²/d₂²
R₂ = (d₁²/d₂²)R₁
R₂ = (d₁/d₂)²R₁
substituting the values of the variables into the equation, we have
R₂ = (d₁/d₂)²R₁
R₂ = (1 mm/4 mm)²10 MOhms
R₂ = (1/4)²10 MOhms
R₂ = (1/16)10 MOhms
R₂ = 0.0625 × 10 MOhms
R₂ = 0.625 MOhms
