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Nady [450]
3 years ago
7

Are dolphins mammals?

Biology
2 answers:
nevsk [136]3 years ago
4 0
Yes, dolphins are mammals.
sammy [17]3 years ago
4 0

Answer: Yes sis, Dolphins are mammals!

Explanation: there is no need for an explanation!

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An ___ ___ is observed due to the unequal transport of charge by a transport mechanism that occurs across a plasma membrane.
insens350 [35]

Answer:

An electrogenic effect

Explanation:

An electrogenic transport is a process where there is a translocation of net charge across the membrane. E.g of electrogenic channels are Na+, K+, Ca2+, and Cl− channels.

7 0
3 years ago
Which of these is a fiber -yielding crop?
Aleks [24]
Oats are pretty high in fiber i dont know what crop that is though probably wheat?
3 0
3 years ago
I need to know the hypothesized enzyme
worty [1.4K]

Answer:

Hypotheis:

<em>If high amounts of product in the samples, '+++' , correlates with optimal temperatures and pH for enzyme activity, then...</em>

  • <u>A- Pepsin</u>
  • <u>B- Amylase </u>
  • <u> C- thermophilic enzyme</u>

Explanation:

Enzymes are specialized proteins that function as biological catalysts- <u>they speed up chemical reactions.</u> As proteins, these are susceptible to changes in temperature and pH- they function best at optimal values for both conditions, but can be denatured, rendering them inactive at relative extremes.

Each enzyme provided has its own optimal temperature and pH values.

  • Thermophilic enzymes are usually found in regions characterized by high temperatures. They show high thermostability, and do not become denatured at high temperatures- they thrive, and do not function well at lower temperatures.
  • Amylase is a hydrolase digestive enzyme found in the mouth, that acts on polysaccharides like starch to break 1,4  glycosidic bonds between glucose molecules. It works best at a physiological (neutral) pH and temperatures (around 37°)
  • Pepsin, another digestive enzyme, is a peptidase that breaks down proteins into peptide molecules. It is found in the stomach lining, where the pH  is typically low i.e. acidic due to the hydrochloric acid in digestive juices.

Thus from the table A- pepsin, B- Amylase and C- thermophilic enzyme can be hypothesized.

6 0
3 years ago
True or false the genotype of an organism constitutes its observable characteristics
iren2701 [21]
False

The genotype of an organism does not constitute its observable characteristics but rather its phenotype. A genotype of an organism is the genetic makeup of an organism while the phenotype is the visible characteristics.
It is, however, significant to understand that the phenotype of an organism is as a result of the interaction between the genotype and the environment. 
4 0
3 years ago
Which of the following explains why children must be vaccinated for communicable diseases, like measles?
maksim [4K]
<span>B)The immunity they receive in the womb from their mother is temporary.

I believe this as the mother passes antibodies to the child through the last three months of pregnancy, and this is a passive immunity </span>
7 0
3 years ago
Read 2 more answers
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