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alexira [117]
4 years ago
11

Why do scientists use controlled experiments

Biology
1 answer:
MakcuM [25]4 years ago
6 0
Because the results are consistent
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What type of asexual reproduction where offspring grows out of the body of the parent?
Sveta_85 [38]
Vegetative Reproduction????
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3 years ago
Drive-reduction theory states that external factors motivate individuals toward certain behaviors. true or false​
d1i1m1o1n [39]

Answer:

true

Explanation:

ED 2020

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3 years ago
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which statement describes a difference in one of the characteristics of life shared by these organisms
Schach [20]
Please follow up with which organisms so I can help you out!
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3 years ago
What is the probability that mary and justin will have an affected child?
NISA [10]

Answer:

The correct answer would be 1/32

Explanation:

Mary and Justin can have affected child only when both of them are carriers that is, both of them should be Gg.

The probability of Justin's father to be a carrier is 2/4 or 1/2 [1 GG: 2Gg: 1gg].

Similarly, the probability of Jean to be a carrier would be 1/2.

Thus, the probability of Justin and his father to be a carrier would be equal to 1/2*1/2 ⇒ 1/4.

The probability of Mary to be a carrier = 1/2.

So, the probability of Mary and Justin to be the carrier of the disease would be 1/2*1/4 = 1/8.

Now, the probability of having an affected child would be 1/4 as it is a recessive disorder.

So, the probability of Mary and Justin to have an affected child = 1/4 * 1/8 ⇒ 1/32

6 0
4 years ago
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4. A single-celled organism that a student observed under a microscope is shown below.
Katyanochek1 [597]

Explanation:

D. The organism is eukaryotic because it has membrane-bound organelles.

Cells are the basic microscopic units of all organisms. There are two cell types, Prokaryotes and Eukaryotes.

Prokaryotic ( meaning pro: before and Karyon: for kernel/nut) describes organisms which don’t have a cell nucleus or other organelles surrounded by membranes. Eukaryotic  (eu meaning true), are organisms with a cell nucleus and several other organelles surrounded by membranes. Example prokaryotes do not contain: nuclei , Golgi apparatus, chloroplasts, mitochondria

<em>Both may contain a cell wall (seen in eukaryotic fungi and plant cells)</em>

<em />

Arranged in a phospholipid bilayer, the membrane is semi-permeable; allowing entry into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds. The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water and hydrophilic molecules to move across the membrane along the concentration gradient.

Their structural components (i.e. their makeup) determine their function (what they do) . For instance, photosynthesizing cells in algae and plants have structures called chloroplasts. These contain chlorophyll, a specialized compound which facilitates the conversion of light energy to energy stored in carbohydrates. In specific cell types, collected proteins may function as a unit called an organelle. Some organelles are bound by membranes like those that make up the external structure of the cell, with varying compositions of phospholipids and proteins. These are advantageous, as they:

  • may increase metabolic reaction efficiency; they allow cells to concentrates smaller fractions of enzymes and solutes
  • separate proteins and molecules that me harm the cell by parceling them into membrane-bound organelles for example, proteaseas bound within lysosomes can break down many structural proteins

<em>The related image is attached below</em>

Learn more about cellular life at brainly.com/question/11259903

Learn more about mitochondria at brainly.com/question/8427362

Learn more about mitochondria and similar structures at brainly.com/question/2855039

#LearnWithBrainly

6 0
4 years ago
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