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Phoenix [80]
3 years ago
11

How do scientists ensure the validity of their conclusions when performing an experiment?

Biology
1 answer:
velikii [3]3 years ago
8 0
Hey there,

Scientists ensure the validity by sharing results with others to make sure they get the same results. They also conduct the expiremnt more than once.

Hope I helped :)
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Compare how the nervous system and endocrine system work to send messages through the human body.
vladimir1956 [14]

Answer:

Here is Your answer vote me as brainlist.

Explanation:

One of the most significant differences between the nervous system and endocrine system is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.

5 0
3 years ago
Which of the folowing organelles/cell structures is NOT surrounded by a double membrane?
Lubov Fominskaja [6]

Answer:

Lysosome

Explanation:

The lysosome is surrounded by a single membrane. This membrane made up of lipoproteins. The lysosome is also known as a suicidal bag. This is meant for the digestion of injured cells. The acidic enzymes present in it helps in cell lysis. The cytoplasm burst due to osmotic swelling. If a single lysosome will burst in the cell it won't affect the cell. When several lysosome bursts together it can rupture other cellular organelles. It is fatal for a cell.

8 0
3 years ago
2. DNA for all organisms is composed of the same parts. What makes your DNA different
gizmo_the_mogwai [7]

Answer:

Explanation:

Humans are 99% identical and what makes each one of us nunique is like 0.1% of our genome and the human genome is up of three billion base pairs which mean 0.1% is still equal to three million base pairs. In those three million differences lies the changes that gives you the green eyes instead of blue eyes etc.

4 0
4 years ago
The cell wall is tough, flexible and fairly rigid layer that surrounds some types of cells. It is located outside the cell membr
creativ13 [48]

Answer: Option C) Animal

The cell wall is tough, flexible and fairly rigid layer that surrounds some types of cells. It is located outside the cell membrane and provides cells with structural support and protection. All BUT ONE type of organism has cells with cell walls. That is an animal

Explanation:

One distinguishing feature of animal cells compared to other living cells is the absence of cell wall.

However, the animal cell possess a cell membrane, with which it regulates substances entering or leaving the cell, and also provide protection and mechanical support for the cell against foreign invaders such as pathogens.

7 0
3 years ago
What is the purpose of interphase in the eukaryotic cell cycle?
uysha [10]
D. the purpose of nterphase in the eukaryotic cell cycle is cell division
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