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3 years ago

14) Which fossil is the oldest? You need to answer this using CER (Claim-

Biology

2 answers:

diamong [38]3 years ago

7 0

Answer:

the trilobite is oldest and that's the answer

iVinArrow [24]3 years ago

3 0

Answer:

The trilobite is the oldest.

Explanation:

In general terms (disregarding specific examples), the lower the level in the stratosphere, the older it is. In this case, the lowest level is taken by the trilobite.

Note however, that this is not always the case, especially near edges of the plates. Sometimes plates shift, which can cause certain older fossils to be moved upwards, while newer ones are shifted downward, as one plate "eats the other". Territory creations, including valleys and mountains when plates crash into each other, can also shift where a fossil is located.

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How does the diameter of each ripple change as time passes

VLD [36.1K]

The diameter of the ripple changes by the following equation = $\frac{dA}{dt} = \frac{\pi }{2} D . \frac{d(D)}{dt}$

Explanation:

When a pebble or a rock is dropped in the water then the ripples or waves are formed which starts moving radially outward. As the time passes, the radius of the circle increases.

Let D be the diameter of the circle.

$\frac{dD}{dt}$ will be the rate of change of diameter of the circle with respect to time.

Let A be the area of the circle.

$\frac{dA}{dt}$ will be the rate of change of area of the circle with respect to time.

Area of the circle = $\frac{\pi }{4} D^{2}$

So,

$\frac{dA}{dt} = \frac{d [\frac{\pi }{4} D^{2}] }{dt}$

$\frac{dA}{dt} = \frac{\pi }{4} \frac{d[ D(t)^{2}] }{dt}$

Using chain rule,

$\frac{dA}{dt} = \frac{\pi }{4} X \frac{d[D(t)^{2} ]}{d[D(t)]} X \frac{d[D(t)]}{dt}$

$\frac{dA}{dt} = \frac{\pi }{4} . 2D(t) . \frac{dD}{dt}$

$\frac{dA}{dt} = \frac{\pi }{2} X D(t) X \frac{d(D)}{dt}$

$\frac{dA}{dt} = \frac{\pi }{2} D . \frac{d(D)}{dt}$

Thus, the following equation determines the change in area in terms of diameter with respect to time : $\frac{dA}{dt} = \frac{\pi }{2} D . \frac{d(D)}{dt}$

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3 years ago

Stem cell research is an emotional topic. Although the advancements in research are remarkable, a portion of society voices ethi

svet-max [94.6K]

There are other avenues to find the cure to diseases that do not involve exploiting fetuses.

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4 years ago

Read 2 more answers

What are questions that biologists might ask about the living things they study

Leno4ka [110]

Answer:

1) The origin of life. 2) The mechanisms of evolution. 3) The control of the size, both of the organs and of the living beings.

Explanation:

Some examples,

Are gender traits completely a result of societal expectations?

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Are there nuclear reactions going on in our bodies?

Can humans ever directly see a photon?

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3 years ago

What term matches the following definition: " ...a fundamental evolutionary process that results in both the adaptation of speci

Leona [35]

Answer:

a.Natural selection

b.Evolution

c.Artificial selection

d.Co-evolution

The correct option is A.

Natural selection.

Explanation:

The correct answer is natural selection because Natural selection is an evolutionary process which was discussed by Charles Darwin in 1859, In one of his theory that it is the ability of organisms to develop traits or characteristics that will help them to adapt and ensure their survival in their environment and then passing or transferring these new traits to new species or offsprings over generations through reproduction.

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4 years ago

What makes enzymes specific for their substrates

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Enzymes bind with chemical reactants called substrates. There may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. In some reactions, a single-reactant substrate is broken down into multiple products.

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4 years ago