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3 years ago

Help! will mark brainly!

Biology

2 answers:

Verizon [17]3 years ago

5 0

C or #3, bc we need carbon dioxide to breath, without it, we will all die!

Your answer will be Carbon Dioxide

ss7ja [257]3 years ago

4 0

Carbon dioxide is released into the air during respiration. Respiration is the act of breathing, so when you exhale you release carbon dioxide

I think I’m right lol hope I helped

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PLEASE HELP!! QUESTION DUE TONIGHT!

Dennis_Churaev [7]

Answer:

There are two ways plants can achieve this. First, they can minimize the resistance to diffusion of CO2 through the stomata (i.e., have lots of large, open stomata). Second, they can maximize the biochemical rate of fixation (i.e., have high concentrations of photosynthetic enzymes).

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3 years ago

Which nutrients contribute most of the energy needed for physical activity -?

Oxana [17]

The answer would be carbohydrate

Carbohydrate, mainly glucose, is the substrate that was used as the main source of energy production. The second energy source would be fat as it gives much more energy than carbohydrate and protein. Protein is used for making new body cells and repairing the damaged one.

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3 years ago

What are the labeled cell parts for this?

vazorg [7]

M-Vacuole

E-Mitochondria

C-Nucleolus

B-Chromatin

D-Nuclear Envelope

K-Lysosome

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3 0

3 years ago

In pea plants, the gene for the color of the seed has two alleles. In the following Punnett square shown below, the dominant all

Bogdan [553]

<h2>Question 1.</h2><h2>Answer:</h2>

The correct answer is option D which is 100%.

<h3>Explanation:</h3>

According to the description of Punnett square given in the question, there will be there will be two types of genotype and one type of phenotype which is yellow.

YY, homozygous dominant = Yellow Seeds.
Yy, heterozygous = Yellow Seeds
So the progeny will be 100% of yellow seeds.

Punnett square is also attached.

<h2>Question No.2.</h2><h2>Answer:</h2>

The correct answer is the option A which predicts the genotypic and phenotypic probabilities of possible.

<h3>Explanation:</h3>

<u><em>Punnett square is a way to determine the probable genotype of expected offspring by the genotypes of father and mother devised by Punnett.</em></u>

In this method, A square shaped table is constructed and the alleles of the gene of father/male are written on the top of tables, on the column.
The alleles of the mother are written in horizontal to square, in front of rows.
So the genotypes in the square box by multiplying row and column alleles will be expected genotype of an offspring.
The example is attached below.

<h2>Question no. 3.</h2><h2>Answer:</h2>

The correct answer is option C which is 1 = TT; 2 = Tt; 3 = Tt; 4 = tt .

<h3>Explanation:</h3>

The Punnett square is made by the description given in the question.

There are total 4 boxes. In box number 1 which is on top left genotype is TT and in box 2 which is on top right genotype is Tt. In box 3, the genotype is Tt and in box 4, the genotype is tt.

So according to the given Punnett square information in option C is correct one.

8 0

4 years ago

Which of these definitions have been paired with the correct type of cell?

liberstina [14]

What are the answer choices?

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3 years ago