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3 years ago

What might happen to a species if it has to compete for natural resources

Biology

1 answer:

MrMuchimi3 years ago

5 0

They might go extinct if they can't keep up with the competition

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I. Plant cells are formed from fertile soil.

Dmitriy789 [7]

Answer:

Option-B

Explanation:

Schleiden was a German botanist and Schwann was a German zoologist who independently observed that plants and animals are made of cells.

Once when they together met in a conference, they shared what they observed and later both reached the conclusion that cell is the functional and structural unit of living organisms.

In the given question, since Schwann was a zoologist, therefore, he concluded that the cell in an organism must function properly whereas Schleiden was a botanist and concluded that the different structures of a plant are composed of cells.

Thus, Option-B is the correct answer.

6 0

3 years ago

Read 2 more answers

The response of an effector is:

Yuki888 [10]

Answer:

to transmit an output in response to the total afferent input

Explanation:

An effector refers to parts of the body generates response. An effector responds to transmit an output in response to the total afferent input Stimulus in the body are detected by the receptor which send signals to the central nervous system via sensory neuron where interpretation and a response is coordinated by the brain. The response is sent to the effector through the motor neuron.

5 0

3 years ago

Now consider a single base mutation in a codon for leucine that creates a codon for phenylalanine. A true reversion changes the

madam [21]

Answer:

options A, B, D and E

Explanation:

leucine codons include: UUA, UUG, CUU, CUC, CUA, CUG

phenylalanine codons include: UUU, UUC.

CUU

replace C with U to give

UUU phenylalanine codon

replace underlined with A

UUA leucine codon

CUC

replace underlined with U

UUC phenylalanine codon

replace underlined with A or G

UUA, UUG leucine codons

UUG

replace underlined with U

UUU phenylalanine codons

replace underlined with C

CUU leucine codon

UUA

replace underlined with U or C

UUU or UUC phenylalanine codons

replace U with C

CUU or CUC leucine codons

7 0

3 years ago

How can birds pass on their urine?

likoan [24]

Birds, unlike mammals, do not have separate exits for urine and feces. Both waste products are eliminated simultaneously through the cloaca. While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine, which reduces water loss in comparison.

6 0

3 years ago

Read 2 more answers

1 Pterodactyl (reptile)

goldfiish [28.3K]

Answer:

Analogous structures are structures which serve similar function in different organisms and evolved independently in two living organisms while homologous structures are the structures which are similar in related orgnanism due to inheritance.

The wings of Pterodactyl, bats and birds are conisdered as analogous structure. they are similar in structure and same in function and evolved independently in the two groups of animals.

Bones in forelimbs of pterodactyl, bats and birds are considered homologous structures as they inherited the pattern from a common ancestor and have different functions.

5 0

3 years ago