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Bad White [126]
2 years ago
6

All of the following are true statements about meiosis in mammals EXCEPT: It serves as a factor in bringing about variation amon

g offspring. A It follows DNA replication. B It occurs only in reproductive structures. C It produces cells with the haploid number of chromosomes.D It produces four genetically identical gametes.
Biology
1 answer:
Helga [31]2 years ago
6 0

Answer: option D) It produces four genetically identical gametes.

Explanation:

Meiosis DOES NOT produces four (4) genetically identical gametes RATHER four (4) offspring cells that are genetically DISSIMILAR with half of the parent chromosome, due to the exchange of material that occurs between homologous chromosomes during crossing over (a distinguishing feature of meiosis).

This exchange is the basis for variation that is observed among offsprings.

So, all options are true except option D

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A scientist is developing a computer model to determine the maximum population size, or carrying capacity, of eagles and other b
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Answer:

Habitat destruction and degradation, illegal shooting, and the contamination of its food source, largely as a consequence of DDT, decimated the eagle population.

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2 years ago
Which human activity can produce disruption of fish breeding habits, increase in mosquito population, and flood control? constru
pogonyaev

Answer:

habitat destruction that decreases beaver population increased erosion due to improper farming techniques overfishing in artificial lakes

Explanation:

thats the answer

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2 years ago
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Mariyam, a marine biologist, measures the length of a great white shark at 4.5 m long and its teeth at an average of 50 mm long.
Oksana_A [137]
Metres are exactly 100 cm in length, the easiest way to go from metres to centimetres is to simply add the extra 1 or 2 zeros, so 4.5 metres would be 450 centimetres.

As for the millimetres, 1mm is equal to 0.1cm, once again, just move the decimal forward by one numeral, and you'll have the converted value, making 50mm = 5.0cm.

Your shark would be 450cm long and have teeth with an average length of 5cm.
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2 years ago
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How is frogs excretory system different then the human system
jeka57 [31]
Transcript of EXCRETORY SYSTEM OF THE FROG AND HUMANTHE URINARY SYSTEM IS RESPONSIBLE FOR THE ELIMINATION OF WASTS VIA THE URINE. THE BASIC UNIT OF FUNCTION IS THE NEPHRON COMPOSED OF THE GLOMERULUS AND A SERIES OF TUBULES RESPONSIBLE FOR THE EXCRETION OF WASTES, REABSORPTION OF VALUABLE SUBSTANCES, AND FILTRATION OF BLOOD.
URINARY SYSTEM OF HUMAN
<span>EXCRETORY SYSTEM OF THE FROG AND HUMAN </span>
EACH KIDNEY CONTAINS UP TO 18 LOBULES AND THOSE 18 LOBES CONTAINS NEPHRONS ARE THE FUNCTIONAL UNIT OF THE KIDNEYS AND EACH KIDNEY CONTAINS MORE THAN 1 MILLION NEPHRONS. IN THE NEPHRONS COMPOSED OF GLOMERULUS FILTERS THE BLOOD LEAVING THE FILTRATE INSIDE THE GLOMERULAR SPACE. THE FILTRATE HAS SIMILAR CHARACTERISTICS TO PLASMA EPT IN THE PRESENCE OF PROTEINS IN THE FORM OF ALBUMIN. THE FILTRATE THEN GOES INTO THE PROXIMAL CONVOLUTED TUBULES WHERE MAJORITY OF THE SUBTANCES ARE REABSORBED.
KIDNEY
THE FLUID ENTERS THE DESCEDING LIMB OF HENLE WHERE IT IS IMPERMEABLE TO MINERALS AND OTHER SUBTANCES. THEREFORE, THE FLUID INSIDE THE TUBULES BECOMES HYPERTONIC COMPARED TO PLASMA. AS THE FLUID INSIDE GOES UP INTO THICK ASCENDING LIMB OF HENLE, WATER BECOMES IMPERMEABLE. THUS, IT IS ONE OF THE IMPORTANT DILUTING SEGMENTS OF THE URINARY SYSTEM. THERE IS ACTIVE TRANSPORT OF VARIOUS PHYSIOLOGICALLY IMPORTANT IONS SUCH AS POTASSIUM IONS, SODIUM IONS AND OTHERS.
URINARY SYSTEM OF THE FROG
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THE NEPRON
FINALLY, THE URINE DRAINS INTO THE MINOR AND MAJOR CALYX TO GO INTO THE RENAL PELVIS. FROM HERE IT IS DRAINED BY THE URETER TO BE TEMPORARILY STORED IN THE BLADDER WHERE PERIODIC EMPTYING OCCURS VIA THE URETHRA THROUGH THE PROCESS OF URINATION. THE URETHRA CONNECTS THE URINARY BLADDER TO THE GENITALS FOR THE REMOVAL OF URIE OUT OF THE BODY. 
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2 years ago
The field of paleontology changed naturalist's views of biodiversity by showing?
Black_prince [1.1K]

Answer: alternative A.

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8 0
2 years ago
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