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Gennadij [26K]
3 years ago
5

Which organism in a food web returns matter to the environment?a)decomposer b)producer c)carnivore d)primary consumer

Biology
1 answer:
yanalaym [24]3 years ago
6 0
A decomposer returns matter into the environment
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The low incidence of cardiovascular disease among the inhabitants of the small town of roseta, pa, a village filled with the des
irakobra [83]

The correct answer is social support.

Social support refers to the actuality and perception that one is cared for, has support accessible from other individuals, and most importantly, that one is a part of a supportive social network.

The four kinds of social support are:

1. Emotional: Expressions of love, empathy, caring, and trust.

2. Informational: Suggestions, advice, and information.

3. Instrumental: Tangle assistance and service.

4. Appraisal: Information, which is beneficial for self-assessment.

7 0
3 years ago
Helper t cells interact with target cells by recognizing __________.
cupoosta [38]

Answer:

antigen-MHC protein complexes

Explanation:

Helper T-cells recognise antigens that are complexed with MHC proteins and interact with target cells. Antibodies can be produced against a single antigen in a variety of ways. Toxic shock syndrome is a relatively mild condition that resembles other minor allergy responses. Antigen-presenting cells break down superantigens.

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8 0
3 years ago
(I really need this to boost my grade)<br><br> Label the permeable and impermeable rock layers
Papessa [141]

Answer: HI your question is incomplete but i will provide a general answer that can help you

answer : Permeable Rock layers allow the flow of fluid like substances through them, While Impermeable rock layers do not allow the flow of fluid like substance through them.

Explanation:

Permeable rocks are rocks containing pores through Fluid like substances can penetrate through in the rocks. examples of Permeable rocks are ; Sandstones and Chalk

While an Impermeable rock is a rock that does not allow the flow of fluid like substance through it due to the absence of pores in its rock layers . examples of such rock are ; Clay and marble  

Although some permeable rocks might exhibit low level of permeability as well but generally Rock sample with pores are classified as permeable rock layers.

6 0
2 years ago
Chromosomes are strands of ADN wrapped around​
babymother [125]

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

3 0
3 years ago
Many researchers think that the first eukaryotic cells obtained energy for life-sustaining functions from organic compounds. Giv
astra-53 [7]

Answer: Chloroplast

Explanation:

The presence of chloroplast would have been the last organelle which appeared in the eukaryotic cell. Chloroplast helps in photosynthesis which means prepare food from the inorganic compounds.

But here the cell obtains energy from the organic compounds which states that there is no need of chloroplast in the cell as they obtain energy by hetero tropic mode of nutrition.

Hence, chloroplast is the correct answer.

5 0
3 years ago
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