BIOLOGY HIGH SCHOOL

A(n) ___________ is a collection of all of the abiotic factors and biotic factors in an entire region.A) habitat
Eliminate
B) ecosystem
C) community
D) ecological niche

Answers

Answer 1

Answer: Ecosystem is correct.

Answer 2

Answer:

hello

The Answer is B) ecosystem

A(n) Ecosystem is a collection of all of the abiotic factors and biotic factors in an entire region.

Related Questions

Mangrove forests were traditionally viewed as _______.a.unproductive wastelandsb.valuable fish habitatsc.an erosion preventing habitatd.pollution filters
What do the polar bears, reindeer, and shrubs that live in a single area make up?
How are living things organized ? List 5 steps of organization from smallest to largest
Select all of the statements that are true of parenthetical citation.a. A parenthetical citation is very short and is contained within the text. b. A parenthetical citation includes the author and the title of the work cited. c. A parenthetical citation gives the author's last name and a page reference for the source material. d. A parenthetical citation is always in parentheses. e. Every source used for an assignment must be documented with a parenthetical citation. f. Only direct quotations need to be documented with a parenthetical citation. g. A comma is not needed between the author's last name and the page reference. h. The abbreviation for page is used in a parenthetical citation.
What is a limitation of using a ball-and-stick model for DNA?a) Some kinds of atoms that are found in DNA must be left out of the models.b) DNA has so many atoms that the size and cost of a model could be too great.c) It is impossible to distinguish different kinds of atoms with models.d) The chemical bonds between the atoms in DNA must be part of the models.

When viewing a human karyotype to detect genetic disorders, which situation would indicate a genetic problem?A) two X chromosomes
Eliminate
B) three chromosomes in any one set
C) twenty-three pairs of chromosomes
D) different chromosomes of different lengths

Answers

The answer is B) three chromosomes in any one set.

In a human diploid somatic cell (2n), there are 22 chromosomes present in two copies and 1 pair of sex chromosomes. This means there are 23 pairs of chromosomes (so choice C. does not indicate a genetic problem). There are in total 46 chromosomes (23 pairs in 2 copies), that differs in lengths (so choice D. does not indicate a genetic problem). Speaking of a pair of sex chromosomes, there could be two X chromosomes in females or one X and one Y chromosome in males (so choice A. does not indicate a genetic problem).
But, having three chromosomes in any one set suggests a presence of trisomy, which is a condition in which an extra copy of some chromosome is present. This results in a genetic disorder.

Large-scale environmental catastrophes _______

Answers

are mostly caused by the pollution due to man-made structures and factories.
Large-scale environmental catastrophes are becoming norm in today's disastrous events which is an indicator that global warming is evident. Global warming is the rising of the global temperature due to the greenhouse effect mainly triggered by many exploitation to the environment.

In cells, __________ are proteins that are needed to lower the amount of energy required to start chemical reactions.a. acids
b. enzymes
c. products
d. substrates

Answers

Answer:

b. enzymes

Explanation:

For any reaction to happen, an energy barrier must be crossed first. This is called as activation energy. Enzymes are biological catalysts that lower the activation energy for a reaction. As a result the reaction is started sooner and its rate is fast.

The substrate binds to the active site of enzyme to form a substrate-enzyme complex. The reaction takes place and product is formed also releasing the enzyme back so that it can be used again.

The answers would be B.
Enzymes accelerate or catalyze ( slow or stop) chemical reactions. And enzymes are protein molecules.
While A, C, and D are not.

If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of the new allele will increase? A)how many other alleles are present
B)whether the mutation makes some lizards more fit for their environment than other lizards
C)how many phenotypes the population has
D)whether the mutation was caused by nature or by human intervention

Answers

The answer is B) whether the mutation makes some lizards more fit for their environment than other lizards.

If a mutation introduces a new skin color in a lizard population and that mutation makes some lizards more fit for their environment than other lizards then the frequency of the new allele will increase. For example, if a mutation causes some dark skin color which can help some lizards to survive. The more lizards with dark skin color will survive, and after some time, the frequency of the new allele will increase.

Answer:

1. on end of figure 17-1 shows an increase in average beak size for a population of birds.

Directional stabilization

2. Figure 17-2 shows highest fitness toward the center of the curve.

Stabilizing selection.

3. Figure 17-3 shows smaller and larger beaks in a population of finches.

disruptive selection

4. If a mutation frequency introduces a new skin color in a lizard population, what factors might determine whether the frequency of the new allele will increase

whether the mutation makes some lizards more fit for their environment that other lizards.

5. genetic drift, the alleles frequencies in a gene pool change because of

Chance.

Explanation:

I got 100 % on my quiz, because of these answers.

Which characteristic does not apply to plants?multicellular with tissues
prokaryotic cells
cell walls containing cellulose
sexual reproduction

Answers

Your answer would be Sexual Reproduction because a cell cannot have sexual contact.

Final answer:

The characteristic that does not apply to plants is prokaryotic cells.

Explanation:

The characteristic that does not apply to plants is prokaryotic cells. Plants have eukaryotic cells, which are more complex and contain a nucleus. Prokaryotic cells, on the other hand, are simpler and do not have a nucleus.

Plants are multicellular organisms with tissues, meaning they are made up of many cells that work together to perform various functions. They also have cell walls containing cellulose, which provide structural support.

Lastly, plants undergo sexual reproduction where male and female gametes combine to form offspring. This allows for genetic diversity and adaptation to different environments.