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d1i1m1o1n [39]
3 years ago
13

What is spirogyra in biology​

Biology
1 answer:
ehidna [41]3 years ago
4 0

Answer:

Spirogyra is a genus of green algae that belong to the order Zygnematales. These free-flowing, filamentous algae are characterized by ribbon-shaped chloroplasts that are arranged in a helical manner inside the cells. So the name is derived from the spiral arrangement of chloroplasts in these algae.

Explanation:

You might be interested in
Bart believes that mice exposed to radiowaves will become extra strong (maybe he's been reading too much Radioactive Man). He de
solniwko [45]

1) Mice not radio waved.

2) Radio

3) Strength of mice

4) Maybe inconclusive.

5) Improves strength

Explanation:

  1. Control Group - Mice not radio waved.
  2. Independent Variable - radio.
  3. Dependent Variable - Strength of mice.
  4. What should Bart's conclusion be? Maybe inconclusive.
  5. How could Bart's experiment be improved? Improves strength

Experimental setup

setup that is testing a hypothesis using a variable. In most cases only one variable should be tested at a time.

Control Setup

setup that is identical to the experimental setup, only it does not contain a variable.

Independent Variable

The one factor that is change by the person doing the experiment

Dependent Variable

The factor which is measured in the experiment

Constant

all the factor that stay the same in an experiment.

4 0
3 years ago
How many chromosomes are in a human oogonia?
Natasha_Volkova [10]

oogonia no result of oogonia  human

ovogonia:Esto quiere decir que la ovogonia tenía 46 cromosomas como se afirmó anteriormente, y el ovocito debe sufrir una reducción por medio de la denominada Meiosis hasta tener 23 cromosomas, 22 cromosomas somáticos y un cromosoma X (22X), el cual es el número Haploide

I hope it helps you.

8 0
3 years ago
The nucleus of prokaryotic cells are represented by what?​
Alisiya [41]

Answer:

Nucleoid

Explanation:

Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.

8 0
3 years ago
Label the features of the stomach and nearby regions in this frontal section of a cadaver (anterior view)
Fantom [35]
1- Pyloric sphincter
2-Duodenum
3- Bile duct
4-Pancreatic duct
5-Esophagus
6-Lower esophageal sphincter
7-Fundus of stomach
8- Cardia
9-Body of stomach
10-Pyloric part

The <span>esophagus(5) connects to the stomach.</span>
<span> The food passes,from the pharynx, to the esophagus, to the stomach. This process is aided by peristaltic movements done by esophagus muscles.
This organ contains two sphincters:</span><span>the upper and the lower esophageal sphincter.
 
</span>The stomach is divided into four parts:
<span><span>1-The cardia (8) - this part is connected to  the esophagus and its where  the epithelium changes from stratified squamous to columnar.
In this region is the lower esophageal sphincter (6).

</span>2--The fundus(7)- It's formed by the upper curvature of the stomach.

3- the body(9)- is the main part; and the biggest

4-The pylorus/</span><span> Pyloric part (10) - is the lower region. This part is connected to the small intestine, the duodenum. In this region there is a </span>
strong ring of muscle called the (<span>1) Pyloric sphincter.


In the first part of the duodenum there is a connection with a duct that comes from the pancreas -4-</span>Pancreatic duct .
There is another duct that ends in the duodenum called- <span>Bile duct, that caries bile to digest fats.</span>
8 0
3 years ago
Which of the following best explains why a cell spends most of the time during the cell cycle in interphase?
worty [1.4K]

Answer:

c) growth of the cell and replication of DNA prepare the cell for division

4 0
4 years ago
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