Why was the evolution of amphibians notable? What did they pioneer?

How do molecules move away from the location of a chemical reaction?

kiruha [24]

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

3 0

2 years ago

Match the spheres with their correct description

Levart [38]

Pls post a
pick of the sphere

5 0

3 years ago

Read 2 more answers

The highlighted structure separates the oocyte from the externally located ________. zona pellucida primary follicle corona radi

Naya [18.7K]

Answer:

Granulosa cells

Explanation:

Foliculogenesis is a dynamic and complex process through which the follicle goes through many stages of development in a short period (approximately 60 days in humans and some chimpanzees).

The stages classification is based on morphological changes such as follicular size or diameter, the number of follicular cell layers, etcetera. These classifications might vary among authors but could be denominated as:

Primordial follicle

Primary follicle

Secondary follicle and

De Graaf follicles (This is the one shown in the image)

Through each stage, there are certain modifications in the oocyte, follicular cells, and connective tissue. As the oocyte grows, the follicular cells might reach a size twice or three times bigger than the ones of the primordial follicles. Their shape also changes and they adopt an aspect of stratified epithelium. Their cytoplasm gets a granulous aspect, after what these cells receive the name of granulous cells. The De Graaf follicle characterizes for having a space named follicular antro that displaces the oocyte to one of the sides.

The oocyte at this point gets surrounded by zona pellucida and corona radiata .

The follicular antro (The highlighted structure) separates the oocyte from the externally located granulosa cells or follicular cells.

7 0

3 years ago

It is important to conduct multiple trials because _____.

Angelina_Jolie [31]

B. it makes your results more convincing

Explanation:

It is important to conduct multiple trials in an experiment because it makes results more convincing.

Multiple trials removes and spreads error from one or more steps in experiment.

The ability to reproduce result in an experiment is known as precision.
Precision is very important in experiments.
When a scientist carries out multiple trails in an experiment, it helps to remove any likely error that might have been carried into the experiment.
Multiple trials are key to efficiency of experiments.
From the results we can confidently state findings based on statistically backed data obtained.

learn more:

Experiment brainly.com/question/5096428

#learnwithBrainly

3 0

3 years ago

What makes acid rain chemically

svlad2 [7]

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

6 0

3 years ago