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3 years ago

What happens to the bonds between atoms when chemical changes occur

Biology

2 answers:

LiRa [457]3 years ago

7 0

Bonds between atoms are broken and created to form new molecules.
Hope that helps!

Citrus2011 [14]3 years ago

4 0

Chemical reaction happens, reaction occurs when two or more molecules interact and the molecules change.

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Match each structure on the left with the corresponding function on the right. Group of answer choices Chemically digests food,

Ad libitum [116K]

Answer:

1. Chemically digests food, absorbs nutrients and minerals from food - Small intestine

2. Breaks down and physically digests food - Stomach

3. Metabolizes nutrients, detoxifies blood, makes bile - Liver

4. Stores and concentrates bile - Gallbladder

5. Removes waste products and excess fluid - Kidney

6. Filtering structure of kidney - Nephron

7. Produces eggs and reproductive hormones - Ovary

8. Produces sperm and reproductive hormone - Testis

Explanation:

This question is asking to correctly match certain digestive organs with their respective function. The organs and their function are as follows:

- Small intestine: Small intestine is the major organ that digests food chemically, and also absorbs nutrients and minerals from food.

- Stomach: This breaks down and physically digests food.

- Liver is responsible for metabolizing nutrients, detoxification of blood, and making of bile.

- Gall bladder is a greenish yellow organ responsible for the storage and concentration of the bile produced by the liver.

- Kidney is the major excretory organ of the body, which removes waste products and excess fluid from the body.

- Nephrons are numerous filtering structure of the kidney.

- Ovary is the female reproductive organ that produces the eggs/ova and other reproductive hormone like oestrogen.

- Testis is the male reproductive organ that produces the sperm and other reproductive hormone like testosterone etc.

7 0

3 years ago

2) Which term best describes energy transfer between trophic levels?

Nadusha1986 [10]

Answer:

2) The correct answer would be C- inefficient.

The term inefficient would be the best to describe the energy transfer between trophic levels. It is because most of the energy gets lost at a particular trophic level in the form of heat. The organism uses most of the energy available at particular trophic level for its cellular functions.

Only around 10% of the energy is transferred to the next trophic level.

3) The correct answer would be A- first step.

In any ecosystem, the producers occupy the first place as they manufacture or synthesize food from carbon dioxide and water with the help of sunlight.

Consumers (herbivores and carnivores) depend directly or indirectly on the producers to get their nutrition.

The simple food chain can be summarized as:

Producers→ Primary consumers (herbivores) → secondary consumers (carnivores) → tertiary consumers (top carnivores)

3 0

4 years ago

Read 2 more answers

The measured distance between genes D and E in a two point test cross is 50 map units. What could this mean in physical terms

balu736 [363]

Answer:

Genes that express 50% of recombination frequency or more are not linked genes. They might be in different chromosomes or located in the same one, but too far from each other.

Explanation:

Genes are physically located in chromosomes. Many genes segregate independently after crossing-over because they are located far away from each other. But some other genes are too close, and they do not segregate independently. These are the linked genes that do not exhibit an independent distribution, and they inherit together more frequently.

We need to know that 1% of recombination frequency = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.

When the recombination frequency is inferior to 50%, genes are linked. If it is equal or superior, they are not linked. Genes are located far enough from each other to assort independently.

Genes that express 50% of recombination frequency or more are not linked genes. They might be in different chromosomes or located in the same one, but too far from each other.

8 0

3 years ago

What type of divergent adaptation occurs when a small subpopulation enters a niche?

VikaD [51]

Parapatric speciation

3 0

3 years ago

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In which ways is photosynthesis important to life on Earth? Check all that apply. makes food for all organisms. adds oxygen to t

ladessa [460]

The right options are; makes food for all organisms, adds oxygen to the atmosphere, is a source of medicines and fibers, is a source of building materials and it provides animal habitat.

Photosynthesis is a process by which green plants and some other autotrophs use light energy in chloroplasts to generate carbohydrates (food) from carbon dioxide and water while oxygen is being released as a by-product. Photosynthesis is essential to all living organisms on earth because it is the main source of oxygen in the atmosphere. Photosynthesis provides animal habitat, it provides food for all organisms (directly for plants and indirectly for animals). Plants and trees produce their foods through photosynthesis and are used as medicines and fibers, and as building materials.

3 0

3 years ago

Read 2 more answers