BIOLOGY MIDDLE SCHOOL

Which is not true of Meiosis?A. Meiosis starts with half the number of chromosome as Mitosis

B. The genetic offspring are exactly like the parent cell.

C. There are 23 chromosomes from each parent cell passed on to the offspring.

D. Meiosis goes through 2 stages of division, Meiosis I and II.

Answers

Answer 1
Answer:

Answer:

I would say it is B.

Explanation:

In Meiosis, specifically in Prophase 1, it creates genetic variation. Crossing over occurs in that stage

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Charles Darwin was credited for writing the biological theory of __________________. The organisms that were used for the basis of his studies were ___________________.A) evolution by natural selection, sweet peas
B) inheritance by independent assortment, sweet peas
C) evolution by natural selection, Galapagos finches
D) inheritance by independent assortment, Galapagos finches

Answers

Answer:

C.

Explanation:

Darwin was the dather of evolution. he went on a journey and observed the finches on this journey

Which term refers to cows and oxen?
A. Bovine
B. Vulpine
C. Porcine

Answers

it is bovine because vulpine is foxes and porcine is pigs :)
it's A because vulpine is foxes and porcine is pigs

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During DNA replication, TTAGC becomes TAGC. This is an example of _____.

deletion
insertion
substitution
copying

Answers

The best answers are deletion and insertion 

Answer:

substitution

Explanation:

Technician A says that the oil control ring scrapes oil off the cylinder wall with each downward piston stroke. Technician B says that a typical oil control ring consists of two separate pieces. Who is right?A. Technician B only
B. Both Technicians A and B wrong answer
C. Technician A only
D. Neither Technician A nor B
p.s "both"is wrong

Answers

Answer:

C. Only tech A is correct

Explanation:

Oil control rings are designed differently than compression rings. A typical oil control ring consists of three separate pieces: two very thin metal rings called scrapers, and a spacer ring called an expander placed in the groove between them.

How do we know the frequency of a wave when we can't see it?

Answers

You find the frequency of a wave by V/WL.

Above 380C and below OoC the rate of photosynthesis decreases. Propose a hypothesis to explain why this occurs.Enzyme activity decreases at these temperatures
At these temperatures plants wilt
Chlorophyll cannot absorb energy from the sun at these temperatures
The cytoplasm of the plant cell cannot function

Answers

Answer:

Enzyme activity decrease at these temperatures.

Explanation:

Photosynthesis is facilitated by the action of various enzymes and involves light and dark reactions.  In light reactions chlorophyll absorbs sunlight and creates ATP AND NADPH. In dark reactions carbon is fixed using the ATP and NADPH.

The efficiency of all these activities depends on the activity of enzymes which depends on the temperature. The optimum temperature range where the enzyme activity is optimal is about 10°c - 20°c. At low temperatures and high temperatures enzyme activity is less efficient.

At a temperature above 38°c and below  0°c enzyme activity decreases.
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