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jek_recluse [69]
3 years ago
6

A mummy is discovered whose stone tomb includes cloth, food, and other organic remains. what dating method would most likely be

used to date the tomb?
Biology
1 answer:
AlekseyPX3 years ago
7 0
The answer is carbon dating. This method is based on the fact that a radioactive isotope of carbon is constantly being created in the atmosphere due to the interaction of cosmic rays with atmospheric nitrogen. This radioactive carbon combines with oxygen to form radioactive carbon dioxide. This carbon dioxide enters the food web, first through plants through photosynthesis, and then to the primary and secondary consumer levels. Therefore, animal and plant material will contain a portion of this radioactive carbon. This particular form of carbon has a half life of <span>5,730 years due to radioactive decay. So this is how scientists are able to date the age of biological material.</span>
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What can stimulate cell regulators to increase cell reproduction?
mezya [45]

hormones can stimulate cell regulators to increase cell reproduction. Thus option C is correct.

<h3>what are the role of hormones in reproduction ?</h3>

Hormones are the chemical messengers  produced by the endocrine cells  and it move through the blood, act on target cells.

The two most important reproductive hormones are estrogen in female and testosterone in male.

Estrogen induce the eggs development and maturation process in adult female and released during regular intervals of menstrual cycle.

Testosterone in male responsible for male gamete production.

Other hormones involved, such as Follicle stimulating hormone (FSH), Luteinising hormone (LH).

Thus option C is correct.

Learn more about hormones, here:

brainly.com/question/13260616

#SPJ1

8 0
2 years ago
How many organelles are in plant cells? please list them. :)
Murrr4er [49]
There are 11 organelles in total, 
vacuoles: they store water
Chloroplasts: trap energy from the sun to produce food for plant cell
Cell wall: provides support and protection to the cell membrane, 
Cell membrane: thin flexible barrier around a cell, controls what enters/ leaves the cell
Nucleus: 'The control center', carries the DNA of the cell
Ribosomes: Found in all cells, their jobs are to make protein 
Endoplasmic Reticulum: The internal delivery system of the cell
Golgi complex: Transports materials throughout the cell
Lysosomes: Break down food into particles the cell can use. another function is they destroy old or dying cells 
Mitochondria: Breaks down food to make ATP 
and last but not least cytoplasm a jelly like fluid in the cell that keeps the organelles suspended 
4 0
3 years ago
Dietary fibre is diffcult to digest ,yet it is advisable to Include in our diet.Why?
iren [92.7K]

Fiber is made out of cellulose. Our body doesn't synthesize an enzyme that digests cellulose(cellulase) that's why we can't metabolize it. fiber is good because it reaches the colon undigested and helps the intestinal fauna and can even prevent colon cancer

7 0
3 years ago
The afferent arteriole is _____ in diameter than the different arteriole, so that glomerular _____ is relatively high.
Marina86 [1]

The afferent arteriole is larger in diameter than the different arteriole, so that glomerular blood pressure is relatively high.

The afferent arterioles are a group of blood vessels that supply the nephrons in many excretory systems. They play an important role in the regulation of blood pressure as a part of the tubuloglomerular feedback mechanism.

The afferent arterioles branch from the renal artery, which supplies blood to the kidneys. The afferent arterioles later diverge into the capillaries of the glomerulus.

The glomerulus (plural glomeruli) is a network of small blood vessels (capillaries) known as a tuft, located at the beginning of a nephron in the kidney. Each of the two kidneys contains about one million nephrons.

The tuft is structurally supported by the mesangium (the space between the blood vessels), composed of intraglomerular mesangial cells. The blood is filtered across the capillary walls of this tuft through the glomerular filtration barrier, which yields its filtrate of water and soluble substances to a cup-like sac known as Bowman's capsule. The filtrate then enters the renal tubule of the nephron.

The glomerulus receives its blood supply from an afferent arteriole of the renal arterial circulation. Unlike most capillary beds, the glomerular capillaries exit into efferent arterioles rather than venules. The resistance of the efferent arterioles causes sufficient hydrostatic pressure within the glomerulus to provide the force for ultrafiltration.

The glomerulus and its surrounding Bowman's capsule constitute a renal corpuscle, the basic filtration unit of the kidney. The rate at which blood is filtered through all of the glomeruli, and thus the measure of the overall kidney function, is the glomerular filtration rate.

Learn more about afferent arterioles here : brainly.com/question/9691907

#SPJ4

7 0
1 year ago
In a free market system, price controls can include both floors and<br> I
SpyIntel [72]

In a free market system, price controls can include both floors and ceilings.

The government imposes these limitations in order to regulate the retail value of specific goods and services. Rather than have limits on both sides, most items have either a floor or a ceiling imposed on them.

4 0
3 years ago
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