BIOLOGY HIGH SCHOOL

Calcium reabsorption by the kidneys is promoted by the hormone called _______

Answers

Answer 1
Answer:

parathyroid hormone (PTH)

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HELP ASAP!!!True of False: All species have the same number of chromosomes in the nuclei of their cells
Which of the following is not true concerning the flow of energy through an ecosystem?

The substitution, addition, or removal of a single nucleotide in DNA is called a(n) ____________ mutation.A)interstitial
B)normal
C)point
D)reference

Answers

I think the correct answer from the choices listed above is option C. The substitution, addition, or removal of a single nucleotide in DNA is called a point mutation. It is a type of mutation that affects only one or very few nucleotides in a gene sequence.

Answer : The correct answer for the blank is -  C) point mutation.

Mutation can be described as the permanent change in the sequence of genetic material (that is DNA) of living organisms.

Point mutation corresponds to change in one nucleotide sequence of DNA.

There can be primarily three types of point mutation that is deletion (one nucleotide is deleted from the sequence), addition (a nucleotide is added), and substitution (a nucleotide is substituted by another nucleotide).

Thus, option C) is the right answer.


Which cell structure is correctly paired with its primary function? 1. ribosome–protein synthesis 2. mitochondrion–movement 3. vacuole–cell division 4. nucleus–storage of nutrients

Answers

Answer:

1. Ribosome–protein synthesis

Explanation:

Ribosomes are structures that are floating in cytoplasm and can be found attached to the endoplasmic reticulum. Ribosomes are also called as the protein factory of the cell because their foremost function is the protien synthesis. Proteins are required by the cell for basic cellular functions, cell division and damage repair etc.
1.ribosome why is beacuse the ribiosomes make the proteins for the cells

A foreign seed is accidentally distributed in a field. After several growing seasons, the plants of the foreign seed are the only type found in the field. This foreign plant is considered which of the following?A. Secondary consumer
B. Invasive species
C. Mutualistic partner
D. Producer

Answers

Answer: B. Invasive species

An invasive species is a species of organisms which is introduced to a new ecosystem and increases in number rapidly. An invasive species complete with the native species for resources and the population of native species being weaker decreases in number, migrate to other locations or extinct. Here, foreign plants can be considered as invasive species because it limited the growth of native species and these foreign plants were only plants left after several growing seasons.

Answer:The answer is invasive species hope this helps

Explanation:

Which parts of the frog nervous system can be observed in its abdominal cavity and hind leg

Answers

on the thigh when you put salt on it

Select all that apply. What is the difference between DNA and RNA?
a.) DNA is a protein and RNA is a nucleic acid.
b.) DNA uses deoxyribose and RNA uses ribose.
c.) DNA has adenine and RNA has thymine.
d.) DNA has thymine and RNA has uracil.

Answers

B and D are the best answers

Ill give you a Brainliest if it is rightThe diagram below shows a portion of the concept map for the Rock Cycle.

Which of these would best fit in the empty oval?
A) magma
B) sediments
C) sedimentary rocks
D) metamorphic rocks

Answers

Answer:

magma

Explanation:

Answer:

Magma

Explanation:
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When 2 species require the same limited resources and can reduce the overall health of one or both species is an example of: a. Predation b. Mutualism c. Competition d. Predation