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Stella [2.4K]
2 years ago
12

What are substrates in biology

Biology
1 answer:
torisob [31]2 years ago
4 0

Answer:1 : substratum. 2 : the base on which an organism lives the soil is the substrate of most seed plants. 3 : a substance acted upon (as by an enzyme)

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Select the three statements that are true. To review the germ layers and the terminology associated with body cavities, see the
soldier1979 [14.2K]

Answer:

A diploblast has no mesoderm.  

A pseudocoelom has the same functions as a true coelom.  In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity.

Explanation:

Diploblast organisms are the ones that have only two primary germ layers. These organisms have outer ectoderm and inner endoderm but no mesoderm. Example: Cnidarians

A true coelom is derived from mesoderm and is completely lined with tissue derived from mesoderm. The outer and inner linings of the coelom are made of muscle layers that are developed from the mesoderm.  

A pseudocoelom is the one that is incompletely lined with mesoderm. Both pseudocoelom and a true coelom serve as shock absorber and provide space wherein the internal organs can be placed. The fluid present in them sere as medium for transport of nutrients, gases, etc.  

3 0
3 years ago
Pollution in the environment affects living things
jekas [21]
True. 100% true. Pollution is bad, and living things - even humans - can be effected in it in a negative way, so it's true
6 0
4 years ago
Read 2 more answers
Explain the differences between eukaryotic and prokaryotic cells.
Andrei [34K]

Explanation:

Comparing prokaryotes and eukaryotes

All life on Earth consists of either eukaryotic cells or prokaryotic cells. Prokaryotes were the first form of life. Scientists believe that eukaryotes evolved from prokaryotes around 2.7 billion years ago.

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information. In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus.

The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure. Eukaryote DNA consists of multiple molecules of double-stranded linear DNA, while that of prokaryotes is double-stranded and circular.

5 0
2 years ago
What is alternative splicing?
cluponka [151]

Answer: B) mRNA processing events that lead to different types of exons being spliced together

Explanation:

When DNA is transcribed into mRNA, a primary RNA or pre-mRNA transcript is obtained that includes introns and  exons. For this pre-mRNA to give way to an mRNA it must undergo a maturation process of the mRNA, which

is basically to eliminate all introns primary transcript and then binding exons.

So RNA splicing is a post-transcriptional process of maturing RNA from which certain sequential fragments are removed. This process is very common in eukaryotes, and can occur in any type of RNA, although it is more common in mRNA.

Removal of introns and binding of exons in the mRNA occurs before leaving the nucleus. This process is known as splicing. <u>The alternative splicing of identical RNA transcripts into different cell types can produce different molecules of mature mRNA that are translated into different polypeptides.</u>

5 0
3 years ago
A sheet of muscles covering the back of the shoulders that aids in shoulder shrugs is called the:_______
irina [24]

A sheet of muscles covering the back of the shoulders that aids in shoulder shrugs are called the Trapezius muscles.

The muscle known as the trapezius muscles runs from the base of the neck to the middle of the back, passing through the shoulders. You may move your head, neck, arms, shoulders, and torso with the aid of the trapezius muscle.
Additionally, it supports spinal stability and improves posture. The traps may be impacted by muscle strains, which can hurt and limit movement. Both posture and mobility are controlled by the trapezius muscles.
It enables you to turn and tilt your head in all directions. When you lift your arm or throw a ball, the trapezius muscle controls your scapula (shoulder blade).

To learn more about Trapezius muscles Please visit -
brainly.com/question/12885652
#SPJ1

8 0
2 years ago
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