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7nadin3 [17]
3 years ago
7

How would bark on a tree compare to our respiratory system?

Biology
1 answer:
evablogger [386]3 years ago
6 0
I know it has something to do with the Xylem and Phloem of the tee.
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A sand storage tank used by the highway department for winter storms is leaking. As the sand leaks out, it forms a conical pile.
harina [27]

Answer:

Rate of change of volume of the pile  = 54\pi

Explanation:

Given -

Rate of increase of the base of the pile = 0.75 inches per minute

Height of the pile = 2 * the radius of the base

Let "h"  be the height of the pile and "r" be the radius of the base.

Then h = 2* r

Radius "r" = 6 inches

Rate of change of radius i.e

\frac{dr}{dt} = 0.75

Volume of conical pile

\frac{\pi }{3} * r^2 * h\\= \frac{\pi }{3} * r^2 * 2 * r\\= \frac{\pi }{3} *2* r^3

Change in volume of conical pile

\frac{dV}{dt} =  \frac{dr}{dt}  * \frac{6* \pi * r^2 }{3}

Substituting the value of rate of change of radius, we get -

\frac{dV}{dt}  = 2 * \pi * (6^2) * (0.75)\\\frac{dV}{dt}  = 54 \pi

Rate of change of volume of the pile  = 54\pi

8 0
3 years ago
2.The process of cell respiration is carried out by _______
Stels [109]

Answer: mitochondria

Explanation:

5 0
3 years ago
The cycads, a mostly tropical phylum of gymnosperms, evolved about 300 million years ago and were dominant forms during the age
Andrei [34K]

Answer:The Cycad tree is the sporophyte.They have flagellated sperm.

Explanation:

During pollination, the contents of the megaspore divide to form many–celled gamateophyte called the endosperm and archegonium. There is a micropyle opening with a sticky fluid, which traps the wind-borne male gametophyte (microspores) which,at this time is made up of prothallus cell;an antheridial cell and a large tube cell. The trapped microspore is sucked into the archegonia chamber. Antherizoids are released, but only one penetrates each oospore and fuses with the female nucleus. The zygote is formed in the ovule and the later develops into seed.The diploid seed germinates into a new sporophyte plant and the life cycle begins again. Examples of cycad include Cycas circinalis ,Cycas celebrical and Cycas revoluta

8 0
3 years ago
What is the correct definition of the term systemic circulation?
seropon [69]
The correct answer is ( B )
4 0
3 years ago
Question 5 Genetic testing is becoming more common, even for people who show no outward symptoms of a disease. Do you think it's
ArbitrLikvidat [17]

Answer:

Explanation:

It is beneficial to know if mutation is the cause of a particular ailment or an individual carries a mutated gene because it gives a clear direction on what the problem is an how it can be resolve of possible.

We have the sex cell and somatic cells, some mutation affects sex cells, while some somatic cells. If a mysterious affect sex cell there is every possibility of it being inherited by the offspring hence adequate knowledge about a mutant gene being in the body can help guide against some further re-occurence.

Negative effect is fear, it creates fear in an individual who has it.

It can lead to depression when an individual becomes traumatize due to his state.

7 0
3 years ago
Read 2 more answers
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