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andriy [413]
3 years ago
6

What is true of the Cambrian explosion? What is true of the Cambrian explosion? There are fossils of animals in geological strat

a that are older than the Cambrian explosion. The Cambrian explosion marks the appearance of filter-feeding animals in the fossil record. The Cambrian explosion is evidence for the instantaneous creation of life on Earth. Only the fossils of microorganisms are found in geological strata older than the Cambrian explosion.
Biology
1 answer:
larisa86 [58]3 years ago
6 0
I had this question when I took a biology class cuz I chose to study a lot on paleontology :)

It’s that there’s fossils of animals in geological strata that are older than the Cambrian explosion.

Some fossils from the ediacaran period have been discovered in layers aged to the Cambrian
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Answer:

Glomerular Hydrostatic pressure .

Explanation:

The basic function of the kidney is the formation of urine for elimination through the urinary excretory system. Two different processes determine this formation: the filtration of fluid through the glomerular capillaries into Bowman's space and the modification of the volume and composition of the glomerular filtrate in the renal tubules.  The fluid passes from the glomerular capillaries to Bowman's capsule due to the existence of a pressure gradient between these two areas. This process is favored by two structural characteristics that make renal corpuscles particularly effective filtration membranes: glomerular capillaries have a much higher number of pores than other capillaries, and the efferent arteriole has a smaller diameter than the afferent arteriole, causing greater resistance to outflow of blood flow from the glomerulus and increasing glomerular hydrostatic pressure. Increased glomerular hydrostatic pressure (due to increased blood flow through the glomerulus) increases filtration, while increases in Bowman's hydrostatic pressure or urinary space (which remains constant, unless there is disease at that level, usually due to fibrosis) and plasma P. oncotic (determined by proteins, which tend to "drag" plasma into the glomerulus) decrease filtering. Resulting in a filtering pressure of 10 mmHg.

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What are three processes that contribute to genetic variation during sexual reproduction
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7 0
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How does the structure of water contribute to its unique properties
frutty [35]

So basically water is a polar molicule. So when it comes to the structure, water is able to form many hydrogen bonds and the way the atoms are able to bond together adds to the water's special properties.

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Dafna11 [192]
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Hematopoiesis is the Select one: a. loss of blood due to hemorrhaging. b. production of only red blood cells. c. production of w
Elena L [17]

Answer:

The correct answer is c. production of white blood cells, red blood cells, and platelets.

Explanation:

Hematopoiesis is the formation of all types of blood cellular components and components of plasma like white blood cells, red blood cells, and platelets by hematopoietic system which involves the bone marrow, liver, and spleen.

First, the hemopoietic stem cell divides into common myeloid progenitor and common lymphoid progenitor. From myeloid progenitor RBC, platelets, basophils, eosinophils, neutrophils, and macrophages are formed.

Common lymphoid progenitor gives rise to T- lymphocytes, B- lymphocytes, and natural killer cells. Therefore the correct answer is c. production of white blood cells, red blood cells, and platelets.

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