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lions [1.4K]
3 years ago
13

1. Photosynthesis in the Earth's forests produces about half of the oxygen in the atmosphere. Photosynthesis in the Earth's ocea

ns produces the other half of the oxygen in the atmosphere. Why do you think so much photosynthesis occurs in the oceans?
Biology
2 answers:
Gennadij [26K]3 years ago
4 0

Answer:

Eventually, anoxygenic and oxygenic photosynthesis oxidized much of the Earth's crust and supplied sulphate to the ocean. Once Rubisco has captured the carbon dioxide, an electron donor is obtained by splitting water, releasing oxygen into the atmosphere.

Degger [83]3 years ago
4 0

Answer:

Because of sea plants and the use chemical lighting instead of solar light.

Explanation:

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Energy resources are required for which of the following?
Artemon [7]

If it is for Odesseyware the answer is all industrial nations.

5 0
3 years ago
Eukaryotic cells require a careful, step-by-step process to make sure chromosomes are properly delivered ..... true or false
lukranit [14]

Answer:

True

Explanation:

Because improper transfer of chromosome to next generation especialy sex chromosome can cuase serious diseases.

6 0
2 years ago
1. breeding of individuals that have genes for two different characteristics dihybrid cross 2. a grid system used to predict pos
icang [17]
1. breeding of individuals that have genes for two different characteristics:
DIHYBRID CROSS.
We call it a dihybrid cross when we are considering a cross between two different traits.
"di" means having two traits involved (for example, trait A and trait B), the "hybrid" means that each trait will have two different alleles (for gene A: A or a; for gene B: B or b), one is dominant and the other is recessive.

2. a grid system used to predict possible combinations of genes due to random fertilization: PUNNETT SQUARE
The Punnett square is a grid system that helps us predict an outcome of a cross or a breeding experiment. We this, we can determine the probability of an offspring having a particular genotype.
This is very useful when we are considering more than one gene,  making it less confusing.

3. a condition in which both alleles are dominant: CODOMINANCE
Tere are alleles that have the capacity of dominating at the same time, and when an organism is heterozygotic, both alleles are expressed.
For example, a white chicken(WW) crossed with a black chicken (BB):  100% of the offspring being WB. With this genotype, they have black feathers and white feathers. It's not a blend of colors, but a case where both are expressing.

4. when more than two alternatives exist for a gene: MULTIPLE ALLELES
Mendel thought that only two possible alternatives could exist for a gene, but there are cases that have more than 3 possibilities. Some of those can be really popular in a population while others not so much.
This happens with rabbit's fur. They can be black, brown, grayish,
Himalayan patterning or white fur.

 5.a condition in which neither pair of alleles is dominant or recessive, so the traits blend in the phenotype: INCOMPLETE DOMINANCE
Some alleles are not completely dominant, and when that's the case the phenotype of a heterozygous organism will be a mix between the phenotypes of its homozygous parents.
For example:
plant 1: RR -red
plant 2: rr-white
By crossing this plants we will obtain 100%  of the offspring with a color mix: pink.(genotype: Rr)
Red and white are not completely dominating so it results in a blend of colors.


3 0
3 years ago
The small hair like structures found all over a cell are called what?
vitfil [10]

ITS FLAGELLA THEY ARE FOUND IN ALL 3 KINGDOMS OF CELLS

6 0
3 years ago
Read 2 more answers
Compare and contrast gram-positive and gram-negative cell walls with regard to (a) sensitivity to antimicrobial agents, (b) resi
yKpoI14uk [10]

Answer:

Kindly find the attached file

Explanation:

5 0
2 years ago
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