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Monica [59]
3 years ago
5

WILL GIVE YOU BRAINIEST!!

Biology
1 answer:
Lelu [443]3 years ago
8 0

The cons of using dispersants are their toxicity to marine environment. Dispersants are also less effective on heavy oils. Dispersants result to oil sinking into the water column from the surface hence this spreads the effect of pollution. Advantages of dispersants are they reduce oil pollution impact onshore and also reduce its risks to marine animals with furs or plumage.


Advantages of using bacteria are that they consume the oil until no residue is left. The bacteria are not toxic like dispersants and reduce in number when the oil pollutant is degraded. Cons of bacteria are that they are unable to break down particular hydrocarbons; they are slow in degrading the oil and are only particularly effective in finishing off oil residue rather than cleaning up large oil spills.


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A unicellular microorganism was recovered from a hot spring (95oc) in wyoming. the cells lack a nucleus, have a cell wall that l
Advocard [28]
The organism belongs to the class Archea, which is a domain and kingdom of single-celled organisms, which lack a nucleus, peptidoglycan layer in the membrane, and bears 70s ribosomes. Archea are prokaryotic and are different from bacteria and eukaryotic organisms. 
6 0
3 years ago
Which list represents the proposed sequence in plant evolution?​
Phoenix [80]

Answer:

1. Bryofita

2. vascular plants

3. Seed vascular plants (gymnosperms)

4. Angiosperms

Explanation:

1. Bryofita

Around 475 million years ago, the origin of plants was thought to originate from aquatic ancestors (green algae). Adaptation to terrestrial life is proven by the presence of sporopolenin and layered gametangia that protect gametes and embryos. This adaptation occurs in bryophytes which are the first terrestrial plants. Bryofita or mosses develop into various vanations in their group. Most briolites do not have vascular tissue (water from the environment is diluted and absorbed by the SD, but some briophytes have water-carrying vessels.

2. Vascular plants

Around 400 million years ago, the evolution of plants was marked by the diversification of vascular plants (vascular plants). These early vascular plants are seedless plants, for example in the types of ferns seria into other groups of seedless plants.

3. Seed vascular plants (gymnosperms)

Plant evolution begins with the appearance of seeds, which are structures that protect the embryo from drought and the threat of environmental change. The emergence of these seed plants accelerated the expansion of plant colonization on land. Plant seeds consist of embryos and food reserves that are protected by a cover. Seed vascular plants appeared about 360 million years ago with the appearance of Gymnosperms. Gymnosperms consist of conifers with a variety of types. Conifers and ferns dominate life in the months between more than 200 million years.

4. Angiosperms

About 130 million years ago marked the emergence of flowering plants that have a somewhat reproductive structure

complicated where the seeds are protected by a room called the ovary.Because the seeds are protected in such a way that this group discusses closed seed plants or Angiosperms

Learn More

About African elephant species and their relationship to the environment brainly.com/question/12630439#

Details

Class : Junior High

Subject : Biology

 

Keywords

- Plant

- Plant Evolution

3 0
3 years ago
The button-like structure that holds homologous chromosomes together at their middles during cell division is called the
Volgvan

Answer:

CENTROMERE

Explanation:

The CENTROMERE is the primary constriction region where the identical DNA molecules are most tightly bonded to each other during mitosis and meiosis.

The typical chromosome in metaphase is composed of two sister chromatids joined by the centromere.

Surrounding the centromere, we can find the kinetochores. These are laminar proteinic structures forming a plate where the spindle and kinetochore fibers will join during chromatids separation.

The position of the centromere defines the chromosomes as acrocentric, metacentric, or submetacentric.

7 0
2 years ago
An object accelerates 12.0m/s to 2nd power
s344n2d4d5 [400]
The mass would be 0.5kg

To find the mass of an object with acceleration and force would be 

m = f/a

I hope this helps. Please rate Brainliest if it did :D
5 0
3 years ago
The diagram below represents a process leading to the formation of a human embryo
Genrish500 [490]

The first step in the formation of the human embrayo and it is called fertilization.

<h3>What is fertilization?</h3>

The first step in the formation of a human embrayo is called fertilization. The term fertilization has to do with fusion of the male and female gametes to form a zygote.

Hence, the diagram as shown is the first step in the formation of the human embrayo and it is called fertilization.

Learn more about fertilization: brainly.com/question/17991559

7 0
2 years ago
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