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Anastaziya [24]
3 years ago
10

What are the reactants of the Krebs Cycle/Citric Acid Cycle?

Biology
1 answer:
svp [43]3 years ago
8 0
Oxygen, glucose, ATP
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The distinguishing characteristic between birds and all other organisms is ________.
KatRina [158]

Answer:the possession of feathers

Explanation:birds are warm blooded animals , that possess feathers.these feathers cover their bodies and used for flight and warmth.their forelimbs are modified into wings,which fold into a Z shape at rest.feathers grow from the skin follicles and are replaced by scales on their legs.they possess oil gland to dress the feathers.

Other features of birds include

1) beaks with no teeth

2) fully ossified bones with air cavities

3)females with left ovary and oviducts only

5 0
3 years ago
In his study of pea plants, Gregor Mendel used which method to produce offspring?
bija089 [108]
He used Selective Breeding
7 0
3 years ago
Which describes how proteins are used in mating by Japanese beetles? A.Male and female beetles combine proteins to form offsprin
Mice21 [21]

The answer is C. Pheromones are hormones (which are proteinous) produces by individuals of the same species and are a means to send communication signals for social interactions. They signal alarm, food and even sex. Sex pheromones are  released by females beetles into the environment to signal their availability for mating. The pheromones are picked up by receptors on the male beetles and this is how they find the females.  

5 0
3 years ago
Read 2 more answers
I was supposed to describe my personality, talents, and passions
OLga [1]
You sound unsure of yourself and you list negatives (not super negative but they’re not great) attributes about yourself. try listing more positive things about yourself besides you being “bored”, “annoying”, or “lazy”. Maybe you have a hobby like drawing or playing games, add things like that
5 0
3 years ago
The inability of organisms to evolve anything that could be an advantage reflects _____.
sergey [27]

The inability of organisms to evolve anything that could be an advantage reflects "the limit of historical constraints".

<h3>What is the limit of historical constraints of evolution?</h3>

Although evolution is a powerful process that leads to

rapid changes in the characteristics of organisms, limits

to evolution arise from a lack of genetic variation, a

loss of well-adapted genotypes in populations due to

gene flow, trait interactions leading to trade-offs, and/

or the difficulty of evolving simultaneous changes in a

number of traits. This is the limit of historical constraints of evolution.

<h3>What are the factors that can cause an organism to evolve?</h3>

Four main factors lead to evolution:

(1) the potential for a species to diversify;

(2) heritable genetic variation among individuals within a species as a result of mutation and sexual reproduction;

(3) competition for scarce resources; and

(4) the spread of organisms that are better able to endure and procreate in the environment.

To learn  more about evolution visit:

brainly.com/question/12051929

#SPJ4

4 0
1 year ago
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