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2 years ago

According to cell theory, what do these four organisms have in common?

Biology

2 answers:

Vlad1618 [11]2 years ago

5 0

Answer:

The correct answer is A) They are made of one or more cells.

Explanation:

Organisms are all made of cells, which are the constitutive unit of living beings. Organisms can be made of one cell (unicellular organisms) or more than one cell (pluricellular organisms).

Option B is not correct because reproduction can be sexual and asexual.

Option C is not correct because organisms can be prokaryotic (such as bacteria) or eukaryotic (such as animal and plants).

Option D is not correct because the organisms which require carbon dioxide to produce food are plants.

vova2212 [387]2 years ago

4 0

Answer: your answer is A

Explanation: they are made of one or more cells :)

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Of the three major groups of forensic science professionals, which of the following provide specific knowledge in an area of sci

Ber [7]

Answer:

A. associate scientists

hope this answer correct (^^)..

5 0

2 years ago

A Xw+m+Xwm female was mated to a XwmY male. Out of 1000 total F1 progeny there were 230 flies that were otherwise wild type with

deff fn [24]

In order to calculate the distance between two alleles/genes that are found in the same chromosome, we need to know how often crossing-over happened (recombination frequency). We know from the text that white eyes were linked to miniature wings and that wild type eyes were linked to wild type wings, so any phenotype that's contrary to these parent combinations are a result of crossing-over. We know then that 230 flies + 240 flies were a result of such recombination. To calculate the recombination frequency we only need to divide these flies (total of recombinant flies) by the total of flies in the offspring and turn it into percentage.
$\frac{230+240}{1000}$ =0.47
0.47*100%=47%
47 map units is the distance between the genes for eye color and wing length.

7 0

2 years ago

A protein's alpha helices and beta sheets fold together to create an overall shape at the _____ level of protein structure.

bogdanovich [222]

Tertiary structure :))))

3 0

2 years ago

A boy threw a small bundle toward his girlfriend on a balcony 10. meters above him. The bundle stopped rising in 1.5 seconds. Ho

Alisiya [41]

Hi!

We know that the boy must have thrown the bundle with some initial velocity 'v', and that the bundle stops after 1.5 seconds at a height 's' with a final velocity 'u' -which would be 0.

Our known values thus are:

Time (t) = 1.5 s

Final velocity (u) = 0 m/s

Gravitational acceleration (g) = -9.8 m/s^(2)

Note: that the acceleration is negative as it is opposing the direction of motion (acting down on the object, causing deceleration)

We will be using equations of motion for an accelerating object to solve first for initial velocity, in order to find the distance.

<h3>Initial Velocity using v = u + at</h3>

Rearranging the equation, and using the value 'g' as our acceleration, we get, u = v - at

u = 0 - (-9.8)(1.5) = 14.7m/s

<h3>Distance Travelled using v^2 = u^2 + 2as</h3>

Rearranging the equation, we get, s= v^(2) - u^(2) / 2a

s = 0^(2) - 14^(2) / 2(-9.8)

Note: the negative sign is not a part of the initial velocity, but a part of the equation

s = - 216.09 / -19.6 = 11.025 m

The distance traveled by the bundle is hence, ~ 11 meters, which is high enough for the girl to catch.

Hope this helps!

6 0

2 years ago

Twenty fruit flies are placed in each of four glass tubes. The tubes are sealed. Tubes I and II are partially covered with black

Andreyy89

Answer:

Explanation:Twenty fruit flies are placed in each of four glass tubes. The tubes are sealed. Tubes I and II are partially covered with black paper; Tubes III and IV are not covered. The tubes are placed as shown. Then they are exposed to blue light for five minutes. The number of flies in the uncovered part of each tube is shown in the drawing.

These data show that these flies respond to (respond means move to or away from):

5 0

2 years ago