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ozzi
3 years ago
7

Which of the following is a biotic factor of an ecosystem? *

Biology
2 answers:
Charra [1.4K]3 years ago
7 0

A.) Grass I did the test and its grass.

Hope this Helped!:)

Ipatiy [6.2K]3 years ago
6 0
The correct answer is A. grass
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Which option distinguishes the natural resource in the following Between the time settlers first moved to North the year 1907. s
umka2103 [35]

Answer:

Probably forest land but that is just my guess

Explanation:

6 0
3 years ago
Which DNA fingering technique examines the length variation of DNA repeat sequences in human DNA?
DiKsa [7]

Answer: The question is incorrect, below is the correct question

Which DNA FINGERPRINTING technique examines the length variation of DNA repeat sequences in human DNA?

The correct answer to the question is option D

mtDNA (mitochondrial DNA) analysis

Explanation: DNA fingerprinting technique is a laboratory technique used by geneticists.it entails placing of DNA samples into wells,these wells are then placed in a slab of gels and thereafter passing a current through the gel.This is done to ascertain the uniqueness of a DNA pattern and thus be able to differentiate people of same species.

There are several methods of DNA fingerprinting as outlined in the options given with the question.

In mtDNA (mitochondrial DNA) analysis,The Genetic samples are extracted from the biological materials, these samples extracted are total genomic DNA like hair,tooth or samples of blood, Several copies of these genomic DNA are then produced using a polymerase chain reaction and flanking primers inorder to examines the length variation of DNA repeat sequences in human DNA.

5 0
3 years ago
Which of the following has the least impact on the environment?
Dmitriy789 [7]

solar it takes up the least amount of space and causes no pollution also it is unlimted

6 0
3 years ago
Read 2 more answers
If a cell contains 95% water and is put into a beaker with 100% water, what will happen
Kisachek [45]

Answer: The quantity of water in the beaker will reduce. The cell will increase size.

Explanation: There is difference in water concentration between the cell and the beaker, therefore water will move from the beaker into the cell causing the cell to expand and the quantity of water in the beaker to decrease. There will be movement of water molecules from an area of high water concentration (beaker) to an area of low water concentration (the cell) through a selectively permeable cell membrane. The aim of this is to create an equilibrium between the water concentration in the cell and that in the beaker.

4 0
3 years ago
Which items exist on earth because of green plants ?
Evgesh-ka [11]

From the following items:


1. An atmosphere containing oxygen


2. wooden furniture


3.food, including vegetables, fruits, and meats


4.fibers to make cloth


5. drugs such as aspirin


6. fossil fuels such as oil, gas, coal and nutrient-rich soil



ALL of these things are one way or another, exist because of green plans. E.g. Oxygen is released by plans, while wood for furniture comes from trees.

All fruits and vegetables are grown on plans while even meat comes from animals who eat green plans.


Fibres such as wool also come from animals which eat plans, and fossil fuel is made from the remains from millions of years of old plans in the ground.


Read more on Brainly.in - https://brainly.in/question/919185#readmore

7 0
3 years ago
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