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Kazeer [188]
3 years ago
6

Anyone know any good books to study exam style questions for 9th grade biology?

Biology
1 answer:
krek1111 [17]3 years ago
5 0

Answer:

I'm not too sure specifically for 9th grade. Though I am in 12th grade right now and currently using the Edrolo biology textbook which is solely based on the key dot points/skills for the entire subject. They also include past exam questions or similar exam style questions both multiple choice and short answer for each topic and chapter within the book.

Explanation:

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How many moles of water are produced?​
DerKrebs [107]

Answer:

10.86 moles of water are produced

Hope it helps!

3 0
2 years ago
What event must take place during interphase before a cell proceeds to division?
Roman55 [17]

Replication of the DNA  

Typically, growth too

4 0
3 years ago
Do you think that plants can get the building materials they need to grow from soil wateror air? Which ones? Explain your answer
Archy [21]
All of them. Air because in helps make food it also lets the plant breath. Water because it helps move nutrients into the plant. Soil because plants can’t grow without soil.
7 0
2 years ago
You want to identify dominant /recessive relationship for skin color for a new frog species that you found in the rain forest. A
noname [10]

Answer:

bright blue trait = recessive

yellow trait = dominant

Explanation:

let the letter B represent the gene for skin colour.

This means that the dominant gene is 'B' while the recessive gene is 'b'

A dominant gene is one that is exhibited phenotypically in the presence of both gene variants (heter0zygous state - Bb) while a recessive gene is only expressed phenotypically when it is in a h0m0zygous state (bb)

In order to find out the genotype of the parents, let us consider each cross one after the other.

1. A bright blue female and a bright blue male produce all blue progeny.

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny

From statement 2, it can be deduced that the trait for yellow colour is dominant because a cross of the parents exhibiting this trait produces bright blue offsprings too, meaning that the genetic composition of the parents contains the gene that codes for yellow colour. Since these parents show a yellow colour in a heterozygous state, then the trait for yellow colour is dominant.

Therefore, the genotypes of the parents in each case include:

1. A bright blue female and a bright blue male produce all blue progeny. (bb × bb)

2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny (Bb × Bb)

6 0
2 years ago
When and where would the number of daylight hours each day be the greatest?
Alex_Xolod [135]
In the summer because it wil be warm
3 0
3 years ago
Read 2 more answers
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