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bogdanovich [222]
2 years ago
13

3. Because plants don’t have interior or exterior skeletons, they rely on their cell walls to give them structural support. Did

you see evidence of this cell structure in plants? How was it different from the animal cells (the blood cells, cardiac muscle, and skin)? 4.The paramecium was the only unicellular organism that Stella viewed through her microscope. All the other organisms were multicellular. How was the unicellular specimen different from the multicellular organisms? 6. Why do you think electron microscopes allow for greater magnification than compound microscopes?
Biology
1 answer:
pychu [463]2 years ago
7 0

Answer:

3. Plant cells are arranged in tight squares due to their cell walls and are filled with water. These characteristics give the plant a structural support.

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Black fur (B) is dominant to white fur (b) in guinea pigs. An F1 cross was conducted and resulted in 100% heterozygous guinea pi
Lemur [1.5K]

Answer:

D. 1 BB : 2 Bb : 1 bb

Explanation:

This question involves a single gene coding for fur color in guinea pig. Black fur (B) is dominant over white fur (b). This means that, as stated in the question, if a black fur parent (BB) is crossed with a white fur parent (bb), a 100% heterozygous offspring (Bb) with black fur will result.

If two heterozygous guinea pigs are crossed i.e. Bb × Bb, the following gametes will be produced by each heterozygous parent:

Bb = B and b

Using these gametes in a punnet square (see attached image), offsprings with the following genotypic ratio will be produced:

1 BB : 2 Bb : 1 bb

BB and Bb = black fur guinea pigs

bb = white fur guinea pigs

3 0
1 year ago
On the graph to the right, indicate which curve corresponds to each type of chlorophyll. Which curve corresponds to chlorophyll
vladimir1956 [14]

Answer:

First question - Green curve

Second question - Red curve

Explanation:

6 0
2 years ago
Read 2 more answers
An iodine test of a tomato plant leaf revealed that starch was present at 5:00 p.m. on a sunny afternoon in July. When a similar
dimaraw [331]

This reduction in starch content occurred because starch was changed into simple sugars

<h3>Explanation: </h3>

Starch is a polymeric carbohydrate consist of many glucose units linked by glycosidic bonds. The iodine test is used to test for the presence of starch. Starch will change color to an intense "blue-black" colour after the addition of aqueous solutions of the triiodide anion. To do it we can add Iodine-KI reagent to a solution or directly on a potato or other materials such as bread, crackers, or flour The reaction between amylose that present in lesser amounts and iodine is said to account for the intense color change seen.

An iodine test of a tomato plant leaf revealed that starch was present at 5:00 p.m. on a sunny afternoon in July. When a similar leaf from the same tomato plant was tested with iodine at 6:00 am the next morning, the test indicates that less starch was present in this leaf than in the leaf tested the day before. This reduction in starch content occurred because starch was

  • 1. changed directly into proteins
  • 2. transported out of the leaves through the guard cells
  • 3. transported downward toward the roots through tubes
  • 4. changed into simple sugars

Learn more about   starch brainly.com/question/12497961

#LearnWithBrainly

3 0
2 years ago
Read 2 more answers
7) You decide to clean your bedroom. You notice that your floor is covered with clothes. You decide to try
Strike441 [17]

Answer:

a. Independent Variable: throwing clothes (i.e., the bedroom)

b. Dependent Variable: how clean the floor is

c. Control Variable: throwing clothes into the air

Explanation:

The independent variable is a variable that isn't modified by the other variables measured in the experiment. Conversely, the dependent variable is the variable measured in the experiment which is 'dependent' on the independent variable. Finally, the control variable is a variable that is constant (i.e., unmodified) throughout the course of the experiment.

4 0
2 years ago
Explain why organisms that have an electron transport chain as well as fermentation pathways seldom ferment pyruvate, if an elec
shepuryov [24]
Fermentation is extremely inefficient in terms of the number of ATP molecules produced for each molecule of glucose metabolized. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
6 0
2 years ago
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