What characteristics make a species vulnerable to extinction?

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Answer 1

Answer:

Answer:

Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people

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Sammy notices that the pea plants growing in his garden have purple flowers. What exactly has Sammy observed about the plants?A.) Genes
B.) Alleles
C.) Genotype
D.) Phenotype

Identify the phenotypes for the offspring of a parent with the genotype IBi and a parent with the genotype IAIA.
A.) Type O
B.) Type A, Type B, Type O
C.) Type A, Type AB, Type B
D.) Type a, Type B

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its b for the first question

D. Phenotype - Phenotypes are physical traits, for instance, the purple flowers.

And I’m not sure about the second question, but I think it’s C because the square I made showed results for AB and A.

Hope this helps!

TRUE or FALSE: When an enzyme becomes non-functional as a result ofa change in its environment, it is denatured. *
O True
O False

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i think that’s it’s true

How do abundant growth and care resources affect ecosystem?

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Answer:

over exploitation

Explanation:

Mycoplasma A. lack peptidoglycan.B. are the smallest free-living organisms.C. have sterols in their membranes.D. are killed by penicillin.E. lack peptidoglycan, are the smallest free-living organisms AND have sterols in their membranes.

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Answer:

E. lack peptidoglycan, are the smallest free-living organisms AND have sterols in their membranes.

Explanation:

Mycoplasmas are also called pleuropneumonia-like organisms (PPLO) are the smallest free-living, prokaryotic organisms. They do not have a cell wall and is bounded by a plasma membrane which contains sterol.

Since cell wall is absent in them, they lack peptidoglycan. These are present in animals, plants, insects, soil and sewage. They grow better in the aerobic environment but can also live as facultative anaerobes.

Mycoplasma cause infection, affects cell metabolism, gene expression.

Ecologists conduct population studies to understand population dynamics by investigating how the ______________ increases or decreases over time.amount of resources
diversity of species
number of individuals
size of the habitat

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Population study in ecology is a broad topic to be studied, in order to answer this question we must know that .......

Population

A population, in Ecology, can be defined as a set of individuals of the same species that live in a given area in a given period of time. Individuals in one population are more likely to interbreed with each other than with organisms in another population of the same species.

Population dynamics

Population dynamics is the study of how and why populations change in size and structure over time. Important factors in population dynamics include rates of reproduction, death and migration.

With this information, we can say that" Ecologists conduct population studies to understand population dynamics by investigating how the number of individuals increases or decreases over time.

We can conclude that these studies in Population dynamics are of great relevance to visualize the characteristics of populations.

Learn more about species in brainly.com/question/13259455?referrer=searchResults

Which of the following scenarios describes an example of epistasis?

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Answer:

In rabbits and many other mammals, one genotype (ee) prevents any fur color from developing.

Hope this helps!!! :D

What o uawant me to do exactly

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Biology answers many questions, but it’s main focus is

Without a plateau extending the refractory period in cardiac muscles sarcomeres might be stimulated so quickly that they would contract and not relax and instead would experience a sustained contraction also called:1) depolarization2) Tetany3) relaxation4) repolarization