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SVETLANKA909090 [29]
3 years ago
6

1. identify the force that was mainly responsible for the formation of the planets in our solar system

Biology
1 answer:
motikmotik3 years ago
4 0
1.The force that was mainly responsible for the formation of the planets in our solar system was gravity,

2.They collapsed inward to itself.

3.Gravity keeps our planets to be in orbit,
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Which of the following cell structures is the site of photosynthesis?
Dmitrij [34]

Answer:

if chloroplast is one of the answers then that's the answer.

Explanation:

so I am going with chloroplast.

8 0
2 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
2 years ago
The _____ is a type of regulator protein that binds to a region of dna in the promoter of a gene called the operator and prevent
vivado [14]

The<u> repressor </u>is a type of regulator protein that binds to a region of DNA in the promoter of a gene called the operator and prevents transcription from taking place.

In the field of science, a regulator protein can be described as a kind of protein that affects the transcription of a gene by having an influence on particular DNA sites. The rate of synthesis of various proteins is controlled by the regulator proteins.

A repressor is a kind of regulator protein that prevents the transcription of a particular gene. When the rate of a protein in the body has reached normal, the transcription of the protein needs to be stopped in order for more protein of that kind to be formed. The repressor binds itself to the operator region for the gene, hence stopping the transcription process until the protein is required again.

To learn more about repressor, click here:

brainly.com/question/13799037

#SPJ4

6 0
1 year ago
Please help asap asap asap
dedylja [7]

Answer:

show the full thing

Explanation:

i cant see it

6 0
3 years ago
You are a living organism. Which characteristics of life do you exhibit
sertanlavr [38]
Movement. All living things move in some way. ...

Respiration. Respiration is a chemical reaction that happens within cells to release energy from food. ...

Sensitivity. The ability to detect changes in the surrounding environment. ...

Growth. ...

Reproduction. ...

Excretion. ...

Nutrition.

4 0
2 years ago
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