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spin [16.1K]
4 years ago
8

[[ ANSWER ASAP. MAKE SURE IT'S CORRECT PLS ]]

Biology
1 answer:
Llana [10]4 years ago
4 0

Answer:

Kin selection

Explanation:

Kin selection is the evolutionary strategy that favours the reproductive success of an organism's relatives, even at a cost to the organism's own survival and reproduction. Kin altruism can look like altruistic behaviour whose evolution is driven by kin selection.

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in the poorest countries like ethiopia and bangladesh, biomass represents blank percent of their energy consumption.
Dahasolnce [82]

In the poorest countries like Ethiopia and Bangladesh, biomass represents 90% of their energy consumption.

<h3>Why is biomass a good source of energy?</h3>

Form of renewable energy produced when we burn biomass fuel is called biomass. Biomass fuels is derived from organic material such as harvest residues, purpose-grown crops and organic waste from homes, businesses and farms.

Biomass provides a clean and renewable energy source that can improve our environment , economy and energy security. Biomass energy generates less air emissions as compared to fossil fuels, reduces amount of waste that is sent to landfills and decreases our dependence on foreign oil.

To know more about biomass, refer

brainly.com/question/82777

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7 0
1 year ago
After DNA replication, how many chromosomes would a human eukaryotic cell have? Give your reasoning?
Molodets [167]

Answer:

46 chromosomes

Explanation:

Chromosomes form after DNA replicates; prior to replication, DNA exists as chromatin. Chromosomes contain genes, which code for proteins. Human cells normally have 46 chromosomes, made up of two sets of chromosomes, one set inherited from each parent.

4 0
3 years ago
What is a keystone species? Why are keystone species important? Give and example.
harkovskaia [24]

Answer:Key stone

Explanation:

Keystone species hold together the complex web of relationships in an ecosystem. They can be animals, plants or microorganisms. Examples of keystone species include starfish, sea otters, wolves and elephants.

3 0
2 years ago
This is urgent; please answer quickly.
rusak2 [61]

Answer:

The correct answer is option C. the movement of water from the central vacuoles of the cells into the solution.

Explanation:

In the given question onion cell was initially in 1% NaCl solution later student increase the concentration of the NaCl in the solution which makes the solution hypertonic.

A hypertonic cell is a solution with less water or more solute. Increasing salt concentration makes solute concentration high than inside the cell. Cell shrink in this case due to the osmosis or water movement from the high concentration region of water to the low concentration of water region.

7 0
3 years ago
Give three examples of the food chains that exist in nature
navik [9.2K]

Answer:

sun⇒plant⇒fly⇒frog⇒snake⇒decomposer(bacteria)

sun⇒grass⇒rabbit⇒fox⇒hawk⇒decomposer(bacteria)

zooplankton⇒krill⇒small fish⇒seal⇒shark

Explanation:

7 0
3 years ago
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