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valina [46]
3 years ago
8

Which of these statements is correct?

Biology
1 answer:
son4ous [18]3 years ago
8 0
A
Explanation: To prove something is correct, you must have repetition in your experiment to prove your answer was right.
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Hello everyone! just need help with questions 5 and 6!:) thankyou!!
worty [1.4K]

Answer:

5.) While it appears in a balanced ecosystem that nothing is changing, there is indeed either subtle or gradual changes that constantly happens through natural succession.

6.) Predator-prey relationships achieve a state of balance:

a.) Prey- They are food for predatory animals and help them thrive with nutrients that they possess.

b.) Predator- They help reduce overpopulation for prey

Explanation:

I hope this helped! :)

4 0
3 years ago
A newborn baby dies soon after birth because her diaphragm and rib cage muscles failed to contract and she was unable to breathe
kozerog [31]

Answer:

Troponin

Explanation:

This is a complex of three proteins  (Trop C, I, T) that are responsible for muscle contraction of  the skeletal and cardiac  muscles . its binds with protein tropomysin  to lie in the grove between the actin filaments.  its prevents contraction by blocking  myosin crossbridge  in a relax muscles.Inorder to aid contractions  calcium ions binds with troponin, which leads to confrontational change.This exposes myosin on actin filaments,  leading to formation of crossbridge and therefore contraction of muscles.

Therefore if there is  a mutation in the gene that encoded Troponin, as explained above, calcium ion  will not be able to bind with tropinin, and there will be no exposure of myosin on actin filaments, no binding of  myosin on actin to cause crossbridge, and consequently no  muscle contraction,

Thus the intercoastal  muscle and diaphragm will not contract leading to death of the baby.

8 0
3 years ago
Read 2 more answers
Why do Plants cells have cell walls and Animal cells do not?​
zimovet [89]

Answer:

Plants need a rigid structure. Animal cells have flexible cell membranes. So animal cells can have a variety of shapes, but plant cells can not, they have to take the shape of their cell walls. Both plant and animal cells are eukaryotic, so they contain membrane-bound organelles like the nucleus and mitochondria.

4 0
2 years ago
Read 2 more answers
How can a prolonged fever be fatal?
koban [17]

Answer:

A rise in temporary body tempurature typically isn't fatal but if prolonged for too long and especially if continuing to rise it can be fatal.

Explanation:

4 0
4 years ago
What are linked genes?
kumpel [21]

Answer:

Genes lying close to each other on chromosome

Explanation:

When genes lie close to each other on chromosome,  they are inherited together as an intact unit in meiosis cell division and such genes are termed as linked genes.During meiosis the genetic material (allele/genes) is exchanged between the homologous parent chromosome which causes  chromosome recombination and thus the formation of linkages These genes have high chances of recombination as they lie close to each other.

8 0
3 years ago
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