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valentinak56 [21]
3 years ago
11

Which organelle would the Spirulina bacterium have provided?

Biology
1 answer:
vlabodo [156]3 years ago
5 0
Spirulina is a type of cyanobacteria. The cyanobacteria are a type of bacteria that have pigments that allow them to photosynthesize. Which organelle allows a plant to photosynthesize? 
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Which of these plants are thought to be the first land plants and the main food source for large dinosaurs?
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out of all of them its going to be ferns

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Three student models show a coastline with one tectonic plate moving under another tectonic plate. Each model of the coastline a
Agata [3.3K]

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Students Models 1 and 2 only

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3 years ago
This is an involuntary, non-striated muscle found throughout the human body.​
astraxan [27]

Answer: Smooth muscle

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I got it wrong on usatestprep and when it showed me the answer key, smooth muscle was the correct answer.

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Which describes a grizzly bear's habitat?
mafiozo [28]
I think The answer is D
3 0
3 years ago
The inheritance of eye color in Drosophila is controlled by genes on each of the fly's four chromosome pairs. One eye-color gene
algol [13]

Answer:

F1 Females  - all wild type

F1 Males  - all wild type

F2 Females  -  - all wild type

F2 Males - 1/2 wild type, 1/2 vermilion

Explanation:

The wild-type allele (Xᵛ⁺) is dominant over vermilion (Xᵛ), which is a sex-linked trait.

Female flies have two X chromosomes, male flies have one X and one Y chromosome.

A homozygous wild-type female fly (Xᵛ⁺Xᵛ⁺) is mated with a vermilion male fly (XᵛY).

The female parent can only produce Xᵛ⁺ gametes.

The male parent can produce either Xᵛ or Y gametes.

When gametes from both parents fuse, the F1 offspring will have the genotypes Xᵛ⁺Xᵛ (females with wild type eyes) and Xᵛ⁺Y (males with wild type eyes).

The F1 females can produce Xᵛ⁺ and Xᵛ gametes. The F1 males can produce Xᵛ⁺ and Y gametes.

When the F1 individuals interbreed, the gametes combine to give rise to the F2 offspring. The possible combination of gametes that will give the different genotypes and phenotypes in the F2 are:

  • Xᵛ⁺Xᵛ⁺ females with wild type eyes
  • Xᵛ⁺ Y males with wild type eyes
  • Xᵛ Xᵛ⁺ females with wild type eyes
  • Xᵛ Y males with vermilion eyes

7 0
3 years ago
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