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Sholpan [36]
3 years ago
13

ANSWER AND I WILL GIVE BRAINLIEST AND POINTS!

Biology
1 answer:
ehidna [41]3 years ago
8 0

Answer:

A DNA marker

Explanation:

also known as a size standard or a DNA ladder) is loaded into the first well of the gel. The fragments in the marker are of a known length so can be used to help approximate the size of the fragments in the samples.

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lilavasa [31]
A, B, AB would be the blood types of the offspring. A has a chance of 25% or 1/4, B has a chance of 25% or 1/4 and AB would have 2/4 or 50%.
3 0
2 years ago
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WILL MARK YOU BRAINLIEST!
Andreyy89
Which one all of the or what
7 0
3 years ago
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The map of a walking trail is drawn on a coordinate grid with three points of interest. The trail starts at R(−2, 4) and goes to
Zinaida [17]

Answer:

The total length will be "10 units". A further explanation is given below.

Explanation:

The given points are:

R(−2, 4)

S(3, 4)

T(3, −1)

On applying the distance formula,

⇒ RS=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

⇒       =\sqrt{(3-(-2))^2+(4-4)^2}

⇒       =\sqrt{(3+2)^2+(0)^2}

⇒       =\sqrt{25}

⇒       =5 \ units

and,

⇒ ST=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

⇒       =\sqrt{(3-3)^2+(-1-4)^2}

⇒       =\sqrt{0+(-5)^2}

⇒       =5 \ units

Now,

The total trail length will be:

= RS+ST

= 5+5

= 10 \ units

7 0
3 years ago
The Y axis of a graph gives the units for the
igor_vitrenko [27]

Answer:

The y-axis of a graph gives the units for the dependent variable.

Explanation:

Dependent variable is the variable being tested and measured in an experiment, it depends on the independent variable.

7 0
3 years ago
How do trees act as carbon sinks?
Romashka [77]


The best answer is D.

A carbon sink is anything that absorbs more carbon than it produces or releases.

The main carbon sinks found in nature are plants, the ocean and soil.  Plants such as trees capture carbon dioxide from the atmosphere and use it in photosynthesis. Part of this carbon is transferred to soil as the trees and other plants die and decompose.

Due to the effectiveness of trees and other plants as carbon sinks,  the Kyoto protocol proposed that emission reduction can be achieved through absorption of carbon dioxide by these plants. 



5 0
3 years ago
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