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zheka24 [161]
2 years ago
10

Archaeplastida, which include red and green algae and land plants, are thought to have descended from a heterotrophic protist th

at engulfed a(n) _____.
Biology
1 answer:
mafiozo [28]2 years ago
4 0

Answer:

The correct answer is - cyanobacterium.

Explanation:

According to the endosymbiotic theory eukaryotic cells are rise through the engulfing the endosymbiotic cyanobacteria by prokaryotic cells and from cells with specialized cell structure like chloroplast and mitochondria.

Archaeplastida are all the plant kingdom with red green algae and land plants included in this group are descended from heterotropic protist by the process of engulfed an cyanobacteria.

Thus, the correct answer - cyanobacteria.

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Turtles and leopards all have four limbs and an amnion. True The common ancestor of lamprey and lancelets had a vertebral column
kramer

Answer:

Explanation:

The objective is to conclude if the statements are true or false based on facts.

1)\text{ Turtles and leopards all have four limbs and an amnion.  } True

2) \text{The common ancestor of lamprey and lancelets had a vertebral column. } False

This is because their ancestor is a Chordate who doesn't have a vertebral column but a notochord.

3) True

\text{Frogs are the sister taxa of turtles and leopards because they are more }

\text{related to a common ancestor.}

4) \text{Leopards and bass are more closely related than turtles and bass}  False

This is because the bass is a fish that possess some characteristics traits related to an amphibian (turtle) as compared to a mammal(leopard).

5) \text{The taxon that shares the most recent common ancestor with frogs is the bass.} False

The taxa of turtles share a more common ancestor with frogs compared to bass.

6) \text{Leopards and lancelets have no common ancestor. } False

The common distant ancestor for leopards and lancelets is known as  Chordates

4 0
3 years ago
What’s is the unit ratio of platelets to whit blood cells in a microliter of blood?
____ [38]

Answer:

33.3

Explanation:

Normally there are 4000 to 11000 WBCs in a microliter of blood averaging almost 7500. While there are 150,000 to 350,000 platelets in a microliter blood of a normal person averaging almost 250,000. Thus the ratio can be as 250,000 :7500 resulting in 33.3. If a range is to be given, it ranges from 31.8 to 37.5 per microliter of blood.

8 0
3 years ago
Which of the following soil conservation techniques prevents erosion?
nydimaria [60]

All answer choices are correct in soil conservation techniques prevents erosion.

<u>Explanation:</u>

  • Decreasing tillage yields crops to settle in the soil preferably than being broken at the end of a season. The gain of no-till farming is consecutive to the soil structure, which transmits more deposits on the exterior to stand up against severe water and wind situations.
  • With contour ploughing, preferably of seeding crops in straight lines, crops are planted based on the form lines of the area to form stores that save rainwater and lessen top-level soil erosion.
  • Terracing is the habit of producing almost level areas in a hillside area.  Terraces are shielded from erosion by other soil restrictions.
7 0
3 years ago
How can information about previous climate be obtained by studying the growth rings of trees?
vekshin1
The growth rings of a tree is the physical reality of the age of the tree and by examination can confirm the history behind a tree. By studying the rings you can find info about previous climate using the proper process that science says.
4 0
3 years ago
Can someone help me on this hw plz
Masteriza [31]

Explanation:

<em>Men are expected </em>to do work that women cannot do. For example going outside and earning money or take decisions that effect the family. These are the thoughts of society and are mostly implemented in households.

<em>Being masculine</em> means that men comparatively have a strong physical ability than women. They can do heavy duty works with ease

<em>Women are expected</em> to sit in the house. According to society women are naive and need to be under the protection of man. Women are expected to be good mothers and obedient wives. They should be able to run the house well.

<em>Being feminine means</em> that women is very delicate and sensitive like a flower. A man has to nourish her and take care of her while the woman will become a beautiful flowers and fill the house with a strong fragrance.

Apart from these men and women are free to do what ever they want because in the 21st century not a lot of these old gender roles are followed. Sometimes the roles get swapped and women work outside just because they want to or because of the economic conditions.

I hope you found this useful

3 0
3 years ago
Read 2 more answers
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