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icang [17]
3 years ago
6

The_______is the source of all energy in our atmosphere​

Biology
1 answer:
swat323 years ago
3 0

Answer:

sun

Explanation:

it gives energy to all things. light energy.

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How does the amount of energy emitted by a "warm blooded" animal compare to that from a "cold blooded" animal?
Ahat [919]
Warm blooded animals are much stronger and like aligators , reptiles and different warm blooded animals
5 0
3 years ago
Summarize the 3 trends in human population
Aleonysh [2.5K]

Answer:

Population trend refers to changes over time and can include changes in ranging behavior (e.g., distance and route) and distribution, biogeography (e.g., size of population) and life-history (e.g., birth and death rates).

7 0
3 years ago
The ______ system is assisted by the lymphatic system and the physical barriers of the skin and gastrointestinal tract.
mezya [45]

Answer:

The correct answer is- Immune system

Explanation:

There are physical, chemical and immunological barriers present in our body which helps us to protect from the foreign antigen. They all assist each other and helps in pathogen removal from our body.

The physical barrier includes skin, gastrointestinal tract, respiratory tract, etc which do not allow the microbe to enter the body. Chemical barriers include tear, saliva, acid in the stomach which kills microbes on the body surface.

Immune cells like macrophages, B cells kills microbes when it gets in the body. Lymphatic system also contain immune cells and helps in microbe removal.  

So the immune system is assisted by physical barrier, chemical barrier, and lymphatic system.

4 0
3 years ago
while primary production refers to the synthesis of plant material, secondary productivity refers to the synthesis of what
Crazy boy [7]
That would be the synthesis of body mass in a primary consumer (herbivore who eats the plant).
6 0
3 years ago
Which of the following molecules are not required to express a gene in eukaryotic cells?
slava [35]

Answer:

Repressor protein

Explanation:

Repressor is a protein that binds to deoxyribonucleic acid(DNA) or ribonucleic acid(RNA) it inhibits the expression of one or more genes which is done by binding to the associated silencers.

A DNA binding repressor works by blocking the attachment of RNA polymerase an enzyme that enhance transcription to the promoter, thus preventing genes from been transcribed into messenger RNA.

An RNA binding repressor binds to the messenger RNA and prevents translation of the bases on the messenger RNA into protein. The blocking of expression is called repression.

4 0
3 years ago
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