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3 years ago

Describe the primary differences between plant and

Biology

2 answers:

Aleks04 [339]3 years ago

5 0

Plant feel have cell wall but animal doesn’t have cell wall

icang [17]3 years ago

3 0

Explanation:

plant cells have cell membrane and cell wall while animal cells only have the cell membrane missing the cell wall

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(c) Based on the data in Table 1, describe why the dominant alleles for body color and wing shape are the alleles that produce a

Brrunno [24]

Answer:

Check the explanation

Explanation:

Consider the below table of F2 data of phenotypic flies: we can reconstruct the table as seen in the second attached image below:

From the above observations it is clear the Gray body long wings and Ebony body vestigial wings are the parental combinations and that the Gray body vestigial wings and Ebony body long wings are the recombinants.

Also the ratio indicates that Gray body is dominant over ebony body and that long wings is dominant over vestigial wings.

here the genes for the two characters have shown independent assortment which means that the genes are unlinked if located on the same chromosome or are located on different chromosomes.

Now F1 hybrid= GgLl (G for Grey and L for Long)

Cross between F1 hybrid and true breeding Gray vestigial (GGll)

GgLl x GG ll

Gametes-----------> GL Gl gL gl Gl

GL Gl gL gl

Gl GGLl GGll GgLl Ggll

(Gray long) (Gray vestigial) (gray Long) (Gray vestigial)

Therefore the probability of getting the flies with gray body vestigial wings= 2/4= 50%

b) The reason why the students obtained the above given F2 results involving a cross between true breeding Gray body and long wings with true breeding Ebony body and vestigial wings is that the genes for the two charcters asssort independently in F2 generation and that the genes are not linked as:

Parents------------------> GGLL x ggll

Gametes -----------------> GL gl

F1---------------------> GgLl (Gray long but in heterozous condition)

Now GgLl x GgLl

Gametes GL Gl gL gl GL Gl gL gl

Here gametes assorted independently and hence in F2 generation we got the above results (U can show the results in the form of punnett square.

4 0

4 years ago

If liz exhibited symptoms of impaired work performance, general fatigue, pale skin, depressed immune function, impaired cognitiv

satela [25.4K]

Answer;

-iron-deficiency anemia.

Liz is likely to be suffering from iron-deficiency anemia.

Explanation;

- Iron deficiency anemia develops when body stores of iron drop too low to support normal red blood cell (RBC) production. It may be caused by the Inadequate dietary iron, impaired iron absorption, bleeding, or loss of body iron in the urine.

4 0

3 years ago

Do you think a flowchart is the best way to explain how the nervous system works to someone who’s unfamiliar with the concept? E

Inessa05 [86]

Answer:yes

Explanation:yes because that is what your teacher is looking for

4 0

3 years ago

When scientists analyzed drilling samples from the Glomar Challenger study, which discovery did they make about rocks in relatio

Nat2105 [25]

Answer:

When scientists studied patterns in the rocks of the ocean floor, they found more ... Making Models What characteristic of the ocean floor did you observe as you swept ... recorded the magnetic memory of rocks on both sides of a mid-ocean ridge. ... The Glomar Challenger, a drilling ship built in 1968, gathered the samples.

Explanation:

Glomar Challenger: Drillship of the Deep Sea Drilling Project. It was on June 24, 1966, that the Prime Contract between the ... One of the most important discoveries was made during Leg 3. ... After analysis of samples, scientists concluded that the ocean floor is probably no older than 200 million years.

4 0

4 years ago

In 2016, Sub-Saharan Africa had a doubling time of 23.3 years.

Masja [62]

The correct answer is Option B: 3%.

In 2016, Sub-Saharan Africa, doubling time is 23.3 years, thus Growth rate is 3%.

<h3>What is doubling time?</h3>

The doubling time is the time taken by a population to double in its size.
This concept is applied to population growth, inflation, resource extraction, consumption of goods, the volume of malignant tumors, and many other things that tend to grow over time.
There is an important relationship between the percent growth rate and its doubling time known as “the rule of 70”: to estimate the doubling time for a steadily growing quantity, simply divide the number 70 by the percentage growth rate.
Therefore, Growth rate is 70 divided by doubling time (70/ doubling time).
Here, Doubling time= 23.3 years.
Growth rate= 70/23.3= 3%

Learn more about population growth rate here:

brainly.com/question/26446097

#SPJ1

4 0

2 years ago