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maxonik [38]
3 years ago
6

How do you calculate degree of freedom for chi square

Biology
1 answer:
natka813 [3]3 years ago
6 0

Generally, you can calculate it with this formula: df = (r-1)(c-1) where r is the number of rows and c is the number of columns.

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1.True or false? Gametogenesis is the same as meiosis?
Lostsunrise [7]

1. False. They are similar, though.

meiosis- A kind of cell division involving having the chromosome number. It is responsible for genetic recombination.

Gametogenesis- It's the process when gametes or germ cells are produced in an organism. They undergo meiosis to form gametes.

2. Spermatogenesis- happens in the testes of males. 4 gametes are produced. Spermatogenesis involves a metamorphosis stage called spermiogenesis. Spermatogenesis produces small, motile spermatozoa

Oogenesis- takes place in the ovary in a female. 1 gamete produced. in oogenesis there is no metamorphosis stage. In oogenesis the ovum is spherical, and isn't motile and is bigger with more food reserves and cytoplasm.

3. Because The one egg cell that results from meiosis contains most of the cytoplasm, nutrients, and organelles.

3 0
3 years ago
What is true about the most recent ice age?
Rudik [331]

the true answer is C. Sea levels rose over 300 feet

6 0
4 years ago
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WINSTONCH [101]
D. <span>They all contain carbon as an important part of their structure. Hope this helps you!! =')</span>
5 0
3 years ago
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Which statement is true regarding active transport? Group of answer choices Substances do not require additional energy to move
lesya692 [45]

Answer:

substances can move from areas of low concentration to areas of high concentration

Explanation:

usually substances move across their concentration gradient which is from high concentration to low concentration. Active transport can allow substances to move against their concentration gradient.

7 0
3 years ago
What is waters role in light reactions
lisov135 [29]

Answer:

water act as a reactant in light reaction.

Explanation:

Water undergo hydrolysis in presence of sunlight to form proton(H+) and hydroxyl ion(OH-) ion. The OH- ion liberates electron to reaction center of photosystem 1 thereby exciting the later .The excited photosystem then donates that extra electron to the primary electron acceptor and from the primary electron acceptor the electron moves through various electron carriers to generate ATP .

    Basically water act as reducing agent in photosynthesis process.

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