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Aleks04 [339]
3 years ago
13

Challenges associated with lentic environments​

Biology
1 answer:
12345 [234]3 years ago
6 0

Answer:

Pollution.

It become reservoir for waste deposition.

Habitat of bacteria growth.

Organisms in them die due to lack of food resources.

It's lead to algal bloom.

Explanation:

Lentic environment is a stationary or still water, i.e water that doesn't flow but it is stationary at one place. Examples are ponds, ditches, reservoirs, lakes , pool, seep.

The major challenges of lentic environment are;

It become reservoir for waste deposition.

Habitat of bacteria growth.

Organisms in them die due to lack of food resources.

It's lead to algal bloom.

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Archaeplastida, which include red and green algae and land plants, are thought to have descended from a heterotrophic protist th
mafiozo [28]

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.

4 0
2 years ago
which of the following statements most accurately reflects the mental health focus of the latter half of the 20th century? selec
VladimirAG [237]

The statement which most accurately reflects the mental health focus of the latter half of the 20th century is it's primarily focusing on negative aspects with little attention paid to the positive and is denoted as option C.

<h3>What is Mental health?</h3>

This is a term which is used to denote the cognitive, behavioral, and emotional well-being of an individual.

In  the  latter half of the 20th century , it primarily focused on negative aspects with little attention paid to the positive which is why there is a spike in the amount of sui-cide and other forms of mental deficiencies.

Read more about Mental health here brainly.com/question/24516788

#SPJ1

5 0
1 year ago
What is the effect of expressing a dominant active form of the small GTPase Rac1 in a human neutrophil?
MArishka [77]

Answer:

<u>Option-(B):</u>The neutrophil forms lamellipodial extensions.

Explanation:

<u>Lamellipodial extensions:</u>

The lamellipodal extensions is a type of cytoskeletal protein actin projection. And is the effect of expressing a dominant active form of the small GTPase Rac1 in a human neutrophil.

7 0
3 years ago
The mitotic spindles arise from which cell structure?
Lapatulllka [165]

Answer:

The correct option is : b. centrosome

Explanation:

Centrosome is a cell organelle, which acts as the microbule organizing center and also regulates the cell cycle progression in an eukaryotic cell.

During the prophase stage of the cell cycle, the centrosomes are associated with the membrane of the nucleus. The nuclear membrane ruptures during the mitosis and the interaction of the centrosome nucleated microtubules with the chromosomes leads to the formation of the mitotic spindle.

<u>Therefore, mitotic spindles arise from the centrosome.</u>

5 0
3 years ago
Fill in the word that best completes each sentence.
cupoosta [38]

Answer: Water is drawn in through small openings on a sponge's body called OSTIA.

The supportive skeleton of a sponge contains SPICULES which provide protection from predators.

Explanation:

Sponges refer to any of the aquatic animals of the phyllum porifera which is normally characterized with porous structures and has horn-like calcareous internal framework.

Sponges usually have multiple pores called "OSTIA" on their bodies that allow water to enter them.

Most sponges are sessile and because of this, they can't run away from predators. They usually have sharp "SPICULES" which are part of their skeleton that provide them some certain degree of defense. Apart from this, they also produce toxins which poisons predators that attempt to consume them

4 0
3 years ago
Read 2 more answers
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