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zmey [24]
3 years ago
8

An organism adapts to both biotic and abiotic factors in its environment. Decide if each adaptation is in response to a biotic o

r abiotic factor.
A rabbit living in
a desert has long ears
to disperse heat.
A moth immediately
dives to the ground
when it hears a bat.
A lizard stays warm
by sunning itself
on a rock.
A cactus has spines
instead of leaves
to help conserve water.
A petunia is
bright red to
attract hummingbirds.
A stick-bug blends in
with trees to hide
from predators.
Biology
1 answer:
Sauron [17]3 years ago
4 0

Answer:

The correct answer is

1. A rabbit living in  a desert has long ears  to disperse heat- abiotic factor.

2. A moth immediately  dives to the ground  when it hears a bat- biotic factor.

3. A lizard stays warm  by sunning itself  on a rock- abiotic factor.

4. A cactus has spines  instead of leaves  to help conserve water- abiotic factors.

5. A petunia is  bright red to  attract hummingbirds- biotic factor.

6. A stick-bug blends in  with trees to hide  from predators- biotic factor.

Explanation:-

The environment includes both abiotic and biotic factors which can affect the ecosystem. Living elements like plants and animals which affect ecosystem are known as biotic factors while the non-living elements which include air, water, temperature are called abiotic factors.

In the given question the options affected by the biotic factors due to bat, due to hummingbirds and due to predators.

Options affected by the abiotic factors due to heat and due to water.

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All cells contain a phosphate buffer system within their internal fluid to help maintain a constant pH. This system can be summa
Sloan [31]
The correct answer is A. maintaining homeostasis.
Homeostasis is a term referring to an organisms continuous process of maintaining and auto-regulating the conditions of its internal environment. Variables such as pH, temperature, and fluid balance need to be at optimal conditions in order for the organism to function properly.
In this example, the phosphate buffer system permits the organisms to maintain a constant pH in their intracellular fluid. This is one of the organism's homeostatic mechanisms.     

3 0
3 years ago
In a quiz
emmainna [20.7K]

Answer:B. is false

Explanation:

Once RNA polymerase and its related transcription factors are in place, the single-stranded DNA is exposed and ready for transcription. ... Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA.

7 0
2 years ago
During respiration, members of the animal kingdom use ______ and then release ______ as a waste gas.
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Oxygen; carbon dioxide
8 0
3 years ago
How do the chromosomes in most cells of an organism, such as the leaf cells of a plant, compare to the chromosomes in its reprod
Lunna [17]

Answer:

Reproductive cells have half the amount of chromosomes than body cells

Explanation:

I think that you are talking about body cells when you say "most cells in an organism." If that is the case, then the reproductive cells, sperm and egg cells, have half the amount of chromosome than body cells.

For example: Human body cells have 46 chromosomes. Human reproductive cells has 23 chromosomes.

In sexual reproduction, each parent gives 1/2 of a full set of chromosomes to create the full set needed for an organism.

8 0
2 years ago
A fruit fly population has a gene with two alleles, A1 and A2. Tests show that 70% of the gametes produced in the population con
IceJOKER [234]

Answer:

Option C

Explanation:

Given ,

A1 allele is carried by 70 % people

Let us assume A1 s dominant genotype

This means p= \frac{70}{100} = 0.7

Thus, frequency of allele in the given population is 0.7

It is also given that the population is in Hardy-Weinberg equilibrium thus

p+q=1\\0.7+q=1\\q = 1-0.7\\q= 0.3

Frequency of fruit fly with genotype A2A2 will be

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As per Hardy-Weinberg's second equation of equilibrium

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Hence, option C is correct

7 0
2 years ago
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