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Alecsey [184]
3 years ago
9

An experiment would have a low validity if it had _____.

Biology
2 answers:
marysya [2.9K]3 years ago
7 0

Answer:c

Explanation:

ANEK [815]3 years ago
4 0
The answer is a. no controls
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12 grams of carbon react with 32 grams of oxygen to make 44 grams of carbon dioxide.
mihalych1998 [28]
12/44 = 0.2727
(X100)
= 27
( therefore the percent mass of carbon in carbon dioxide is 27%)
7 0
3 years ago
When clotting factors in the plasma are activated to form a blood? clot, the fluid portion of plasma that remains is known as? _
denis-greek [22]

Answer:

When clotting factors in the plasma are activated to form a blood clot, the fluid portion of plasma that remains is known as <u>serum.</u>

Explanation:

The liquid part of blood is known as the plasma. it makes about 90 per cent of the blood and comprises of antibodies and the clotting factors.

If the clotting factors or the fibrinogens are removed from the plasma, then the fluid that remains is termed as serum. The blood serum contains useful proteins like the albumin and antibodies. The serum is the part of the blood that is mostly used for the diagnostic tests.

6 0
3 years ago
11. Which type of cells does NOT contain a nucleus?
ki77a [65]

Answer:

A, a prokaryotic cell

Explanation:

Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages.

4 0
3 years ago
Read 2 more answers
The ________ of the eye works similarly to the shutter of a camera
Anika [276]
Toenail?

Correct me if I'm wrong.
7 0
3 years ago
Pretty easy question (s) but I am not good at explaining things so I need help
luda_lava [24]

I'm guessing the rocket scenario is the first one and the asteroid one is the last. That being said...

1) The fuel in the rocket provides it with the energy it needs to propel itself into space. The rocket throttles at the bottom, allow it to break free from the earth's gravity by pushing against the earth's greater mass.

2) If you are inside of the bus, in a fixed spot not moving, and the bus is moving. That means you are moving in the same direction as the bus. If it stops, you're still moving at the speed that it was once originally moving at. Obviously, since you weigh less than the bus you are going to fly forwards.

3) There is no gravity or friction in space, so items won't slow down no matter what. Even if an object such as a meteor is flung into space with the tiniest bit of force it will keep flying through space at a consistent speed, since there's nothing to slow it down... unless it hits something else.

4) Looking back at the previous answer, the asteroid is flying through space at a consistent speed (which is really fast). Suddenly it comes in close range to the moon which is bigger in size, and thus has a stronger gravitational pull, and pulls the asteroid into it's field.

5 0
3 years ago
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