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solmaris [256]
3 years ago
12

All scientific questions should be: questionable. explainable. thoughtful. testable.

Biology
1 answer:
lesya692 [45]3 years ago
6 0
I think Testable ...
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The heartworms that can accumulate within the hearts of dogs and other mammals have a pseudocoelom, an alimentary canal, and an
Lyrx [107]

Answer;

Phylum Nematoda.


The heartworms belongs to the phylum Nematoda.

Explanation;

-Phylum Nematoda are un-segmented organisms with ante­rior lateral chemosensory organs (amphids) and with a persistent blastocoel or pseudocoelom; dorsal and ventral nerve cords in epidermis and excretory system of renette cells or tubules.

-The alimentary canal is provided with distinct mouth and anus (complete digestive tract).

8 0
3 years ago
What errors exist in the table below?
Vera_Pavlovna [14]

Answer:

A. spiral galaxies are not pinwheel-shaped

Explanation:

There are three types of galaxies that include spiral galaxy, elliptical galaxy and irregular galaxy.

Elliptical galaxies are round shaped as well as elongated. Elliptical galaxies have both old and new stars but mostly it contains old stars.

Spiral galaxies are pinwheel-shaped due to the regular spinning motion of dust, stars and gas around the galactic center, at speeds of hundreds of kilometers per second which allows the matter to take a  pinwheel-shape. Spiral galaxies are made up of lot of gas and dust and forms many new stars which allows the spiral galaxy to shine bright.

Irregular galaxies do not have any definite shape because of the gravitational influence of close galaxies. They also have many new stars.

Hence, the error is foudn in first sentence, where it says that spiral galaxies are not pinwheel shaped. so teh correct option is A.

7 0
3 years ago
For each sentence below, select the name of the specialized cells being described.
igor_vitrenko [27]

Answer:

1: Neurons

2:White Blood Cells

3:Epithelial Cells

4:Red Blood Cells

5:Muscle Cells

Explanation:

Edge2020

3 0
3 years ago
Read 2 more answers
The movement of which kind of molecules is controlled by osmosis?
BaLLatris [955]
B Water

hope this helped!!!!
8 0
3 years ago
Read 2 more answers
In an experiment, a small dialysis bag is filled with a 20% salt solution. It is placed in a
Studentka2010 [4]

Answer:

The bag will get smaller

Explanation:

Osmosis can be defined as the process of diffusion or movement of water molecules across a semipermeable membrane from an area of higher concentration of water (i.e., lower concentration solution) to a lower concentration of water. For example, in cells, there are specialized pores called 'aquaporins' which are membrane proteins that form channels to transport water molecules by facilitated diffusion. In this case, the outside of the bag has a higher salt concentration than inside, thereby water molecules will move by facilitated diffusion through pores from inside to outside the bag.

3 0
3 years ago
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