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Tasya [4]
3 years ago
9

5. Which of the descriptions below best describes photosynthesis?

Biology
1 answer:
Ganezh [65]3 years ago
5 0

Answer:

i think d but not too sure.

Explanation:

I think it is either d or b but pretty sure d

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What ions, ATP, and neurotransmitters are used in muscle contraction and where are they used??
vivado [14]

Answer:

Hiya there!

Explanation:

ATP then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site. ATP can then attach to myosin, which allows the cross-bridge cycle to start again; further muscle contraction can occur.

acetylcholine : Skeletal muscle contraction and changes with exercise. (A) Neurotransmitter (acetylcholine, ACh) released from nerve endings binds to receptors (AChRs) on the muscle surface.

The muscle contraction cycle is triggered by calcium ions binding to the protein complex troponin, exposing the active-binding sites on the actin. As soon as the actin-binding sites are uncovered, the high-energy myosin head bridges the gap, forming a cross-bridge.

Credit sourced from "bio.libretexts.org"

Hope this <em><u>Helped!</u></em> :D

4 0
3 years ago
Why cant most stars can make elements like gold and iron
balandron [24]

When a star is fusing iron in its core, it's still giving off insane amounts of energy. ... Iron cannot be fused into anything heavier because of the insane amounts of energy and force required to fuse iron atoms. The atomic structure of iron is very stable, more so than most other elements.

6 0
2 years ago
Read 2 more answers
What is the probability that the offspring will have purple flowers?; What is the phenotypic ratio for the purple flowers?; What
Luda [366]

The probability that the offspring will have purple flowers is 50% chance Let's go ahead and assume that:

The allele A corresponds to the color of flowers.

As a result, A would stand in for the alternate white hue and represent the dominating purple color.

According to the aforementioned hypotheses, a white flower would have the genotype aa while a heterozygous purple blossom would have the genotype Aa.

Now let's connect the two flowers:

Aa x aa

Aa Aa aa aa

The genotypes, phenotypes, and odds of the offspring would be as follows based on the cross's outcomes:

Purple color, Aa; 1/2

white flower color, aa, 1/2

In other words, there is a 50% chance that the cross will result in offspring with the flower colors purple (genotype, Aa) and white (genotype, aa).

Learn more about offspring by using this link:

brainly.com/question/14128866

#SPJ4

5 0
1 year ago
When a nutrient moves freely from an area of higher solute concentration into an absorptive cell where the concentration is lowe
Margarita [4]
Facilitated diffusion
7 0
3 years ago
What is the significance of chromosomes crossing over during the prophase stage of meiosis?
Fittoniya [83]
Well, when chromosomes cross over during prophase 1 of meiosis, the homologous pair of chromosomes exchange segments of DNA which happen to be the genes. So the significance of crossing-over during prophase 1 is that it adds genetic variation to sexually reproducing organisms.
7 0
4 years ago
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