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inn [45]
3 years ago
6

Which statement describes a characteristic of a plant cell but is not true for an animal cell? 1. The cell has a nucleus to cont

rol all life functions. 2. The cell has cytoplasm to hold cell parts in place. 3. The cell has mitochondria to give the cell energy. 4. The cell has chloroplasts to turn sunlight into food.
Biology
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

4. The cell has chloroplasts to turn sunlight into food

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PLEASE HELP DUE TODAY!!
Shalnov [3]
The genetic fault that usually causes colour vision deficiency is passed on in what's known as an X-linked inheritance pattern.

This means:

1) it mainly affects boys, but can affect girls in some cases

2) girls are usually carriers of the genetic fault – this means they can pass it on to their children, but do not have a colour vision deficiency themselves

3) it's usually passed on by a mother to her son – the mother will often be unaffected as she'll normally just be a carrier of the genetic fault

4) fathers with a colour vision deficiency will not have children with the problem unless their partner is a carrier of the genetic fault

5) it can often skip a generation – for example, it may affect a grandfather and their grandson

6) girls are only affected if their father has a colour vision deficiency and their mother is a carrier of the genetic fault

5 0
3 years ago
The success of plants extending their range northward following glacial retreat is best determined by _____.
alexgriva [62]

The complete question is :

The success of plants extending their range northward following glacial retreat is best determined by _____.

A) whether there is simultaneous migration of herbivores

B) their tolerance to shade

C) their seed dispersal rate

D) their size

Answer: The seed dispersal rate

Explanation:

The  seed dispersal can be defined as the movement of the seeds away from the parent plant. The ability of the plant to extend is completely dependent on the ability of the plant to disperse its seeds.

Plants have very limited ability, they need vectors to carry its seed from one place to another.

The biotic and abiotic vector both are involved in carrying the seeds which helps in expansion of the trees.

hence, the correct answer is option C

7 0
3 years ago
Things too small to be seen with other microscopes may be viewed with an
Andrei [34K]

Things too small to be viewed by a light microscope can be viewed with an Electron Microscope



Hope this helps!

4 0
2 years ago
Energy can change from one form to another.<br> True or False
NeTakaya

TRue

Explanation:

first law of thermodynamics energy can be changed from one from to another

7 0
2 years ago
Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Wh
Molodets [167]

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

4 0
2 years ago
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