Which organism was most likely to live at the same time as brachiopods?trilobites
placoderms
ammonites
gastropods

Answers

Answer 1

Answer: The organism that was most likely to live at the same time as brachiopods were
Trilobites

Brachiopods were like lamshells. They lived underwater, had soft bodies and their shells were bivalves.
Trilobites had three-lobed bodies. They could swim, crawl, and burrow.

Answer 2

Answer:

Answer:

Trilobites

Explanation:

Both appeared on the same rock layer

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Which of the following patterns of inheritance describes interactions between multiple genes? A. Epistasis B. Sex linkage C. Codominance D. Simple dominance E. Homozygous recessive

Answers

The answer is (A.) Epistasis.

Identify the values of x and y that would make the following expression represent a real number.(4 + 5i)(x + yi)

A. x = 4, y = 5
B. x = –4, y = 0
C. x = 4, y = –5
D. x = 0, y = 5

Answers

I think the correct answer from the choices listed above is option C. The values of x and y that would make the expression to represent a real number would be that x = 4, y = –5. Substituting and simplifying,

(4 + 5i)(4 - 5i)
16 - 20i + 20i - 25i²
16 - 25(-1)
16 +25
41

x = 4, y = -5

Further explanation

This is a problem with complex numbers.

A complex number is a number of the form $\boxed{ \ z = x + yi \ }$ where x and y are both real numbers.

x is considered the real part of the complex number.
y is considered the imaginary part of the complex number.
The real part of a complex number $\boxed{ \ z = x + yi \ }$ is denoted by $\boxed{ \ Re(z) \ }.$
The imaginary part of a complex number is denoted by $\boxed{ \ Im(z) \ }.$

The modulus of a complex number $\boxed{ \ z = x + yi \ }$ is denoted by $\boxed{ \ |z| \ }$ and defined to be $\boxed{ \ |z| = √(x^2 + y^2) \ }$
Remember this $\boxed{ \ i^2 = (√(-1))^2 = -1 \ }$

For example, $\boxed{ \ z = 3 - 4i \ }$

Re(z) = 3
Im(z) = -4
The modulus $\boxed{ \ |z| = √(3^2 + (-4)^2) = 5 \ }$

Let's look at the key problem.

We must identify the values of x and y that would make the following expression represent a real number.

$\boxed{ \ = (4 + 5i)(x + yi) \ }$

$\boxed{ \ = 4(x + yi) + 5i(x + yi) \ }$

$\boxed{ \ = 4x + 4yi + 5xi + 5yi^2 \ }$

$\boxed{ \ = 4x + 4yi + 5xi - 5y \ }$

At this point, 4yi and 5xi must be of equal value and marked opposite, so that the expression represents real numbers.

$\boxed{ \ 4y = - 5x \ }$

Become a fraction, i.e.,

$\boxed{ \ (x)/(y) = (-4)/(5) \ or (x)/(y) = (4)/(-5) \ }$

From the options, the answer is C.

$\boxed{ \ x = 4, y = -5 \ }$

- - - - - - -

Let's check back to expression.

$\boxed{ \ = (4 + 5i)(x + yi) \ }$

$\boxed{ \ = 4x + 4yi + 5xi - 5y \ }$

x = 4 dan y = - 5 ⇒ $\boxed{ \ = 4(4) + 4(-5)i + 5(4)i - 5(-5) \ }$

$\boxed{ \ = 16 + -20i + 20i + 25 \ }$

$\boxed{ \ = 16 + 25 \ }$

Thus the expression represent a real number of 41.

Learn more

The midpoint brainly.com/question/3269852
The piecewise-defined functions brainly.com/question/9590016
The composite function brainly.com/question/1691598

Keywords: identify, the values of x and y, the following expression, represent a real number, (4 + 5i)(x + yi), a complex number, real, imaginary

Where does blood go after it is pumped out of the left ventricle

Answers

After the left ventricle the blood is forced through the semi-lunar valves and into the aorta (artery) which then pushes the blood out for transportation to the body

Which of the following is a requirement for a population to be in Hardy-Weinberg equilibrium? A.Immigration must outpace emigration. B.One allele must provide a benefit.
C.No mutation can take place.
D.The population must be very small.

Answers

The conditions to maintain the Hardy-Weinberg equilibrium are: no mutation, no gene flow, large population size, random mating, and no natural selection.

The correct answer is C.No mutation can take place.

What are the 5 Hardy-Weinberg rules?

A low rate of mutations would help keep a population in equilibrium. The five assumptions of Hardy-Weinberg equilibrium are:

large population size,

no natural selection

no mutation rate

no genetic drift

random mating

What conditions are required for the Hardy-Weinberg model to apply?

No gene flow can occur to increase variability in the gene pool. A very large population size is required to ensure allele frequency is not changed through genetic drift. Mating must be random in the population. Natural selection must not occur to alter gene frequencies.

Learn more about Hardy-Weinberg equilibrium here: brainly.com/question/16823644

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C, If there is mutation , then the population is disrupted.

A homozygous dominant parent for yellow seeds iscrossed with a homozygous recessive parent for green
seeds. The Punnett square shows the possible
genotypes of the offspring.
Which color are the seeds of the offspring?
O green
O yellow
O both green and yellow

Answers

Answer:

yellow

Explanation:

In humans, blood type inheritance is an example ofa. predominance.
b. incomplete dominance.
c. codominance.
d. complete dominance.

Answers

I would say the answer is: Co-dominance

When I was taking biology I learned that there are 3 types of alleles.

You have IA, IB, and little i. The little i means it is a recessive trait. IA and IB are co-dominant. There's a lot more gibberish language I could use.

Good luck and hopefully this helped. If you need me to go into greater detail just let me know.

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