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Pavlova-9 [17]
3 years ago
11

Which organism has a single loop circulatory system A) dog B) fish C)frog D)human

Biology
2 answers:
scoray [572]3 years ago
7 0
The answer is B. Fish
Effectus [21]3 years ago
6 0
The answer is fish have  a nice day
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What is the advantage to a newborn of having the senses of hearing and smell?
Luda [366]
Its because they may assist in the attachment process. Everything a baby experiences through these senses supplies him/her with a constant stream of information that he/she stores in hi/her brain. As he/she grows and develops he/she will use this information to build and understand the environment.
5 0
4 years ago
which of the following is a toxic waste that the kidneys excrete? a) water b) ammonia c) calcium d) all of the above
IrinaVladis [17]

Answer: (D) all of the above.

Explanation:

The kidneys remove wastes and <u>extra water</u> from the blood to form urine. Urine flows from the kidneys to the bladder through the ureters.

<u>Ammonia is an extremely toxic base and its accumulation in the body would quickly be fatal.</u> The liver contains a system of carrier molecules and enzymes which quickly converts the ammonia (and carbon dioxide) into urea (waste).

Calcium excretion in the urine is a function of the balance between the calcium load <u>filtered by the kidneys</u> and the efficiency of reabsorption from the renal tubules.


5 0
4 years ago
Some organelles, such as the endoplasmic reticulum and Golgi bodies, have a large and folded structure. What is an advantage of
bekas [8.4K]

Answer:

Explanation:

In endoplasmic reticulum, many folds leads to an increase in surface area for ribosomes to attach which allows for protein synthesis to occur at an efficient rate.

mitochondria has two membrane,

It has an inner membrane which is folded inside the other. The fold create cristae, which is the site for a portion of cellular respiration.

The folds also enables a large surface area that makes chemical process to occur in an efficient way.

3 0
3 years ago
Population genetics is the study of _______.
Mrrafil [7]

According to the research, the correct option is A, population genetics is the study of how allele frequencies in a population change over time.

<h3>What is population genetics?</h3>

It studies the origin, amount and distribution of genetic variability present in populations.

It explains the variation between individuals, as well as the dynamics of alleles and genotypes within and between populations.

Therefore, we can conclude that according to the research, the correct option is A, population genetics is the study of how allele frequencies in a population change over time.

Learn more about population genetics here: brainly.com/question/13049509

#SPJ1

7 0
2 years ago
Which isotope is best for dating metamorphic rocks?
KatRina [158]
Uranium-235 is the answer
5 0
3 years ago
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